Below is an initial list of signals associated with the ozone system. The ADAM, cosmos, will be setup to handle 16 analog channels. name voltage range sample rate description O3teco 0 - 10 Vdc 1 hz TECO slow ozone (ppbv) O3fs 0 - 5 vdc 20 hz fast ozone, FS, O3ff 0 - 5 vdc 1 hz FS sample flow rate (slpm) O3ft 0 - 10 vdc 1 hz FS reactor temperature (C) O3fn 0 - 5 vdc 1 hz FS nitric oxide flow (sec) O3fp 0 - 10 vdc 1 hz FS reactor pressure (mb) As soon as I have conversion formulas I will add them to logbook. Present plan for channel assignments and gains/offset are: channel # gain/offset signal 0 1 / 0 fast ozone 1 1 / -5 FS reactor temmperature 2 1 / -5 FS reactor pressure 3 1 / 0 FS sample flow rate 4 1 / 0 FS nitric oxide flow 5 1 / -5 TECO slow ozone NOTE: the gain setting and offset for the fast ozone may change to 2 and -5 depending on the resolution needed.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Energy budget sensors at station 1 are: REBS Q7 net radiometer s/n Q94196 cal coef 8.31 top 12.56 bottom Licor LI2005A s/n PY10836 REBS heat flux plate s/n H94319 (943149?) REBS soil temperature STP94017 CS615 #8688 LT#417624 12' ETI model 8205-00500 s/n 058 Installed soil sensors in between two E/W rows of corn with the soil heat flux plate at a depth of 5 cm. The soil moisture sensor was installed with its rods horizontal at a depth of 2.5 cm. The soil temperature sensor was inserted at an angle between the surface and a depth of roughly 5 cm. Leveled the Licor pyranometer and REBS net radiometer.
Work at station #1: Installed PAM data system. Free-wave RF modem working okay with antenna on tripod. Checked power output of GOES transmitter (12.4 W) Aligned prop-vane to boom, shot angle (131 deg 38' 12"), and entered 131.6 into prop-vane. Installed hygrothermometer. Polished lower surface of pressure port. Added oil to ETI range gauge. Installed extension cable for Rnet to Campbell. Installed Krypton hygrometer #1133. Installed bph #23, but not reporting; recycled power and appears to be okay. Installed ATI sonic #3. Leveled sonic within 0.1 degrees. Shot ATI v axis at 131 deg 23' Sonic electronics box was dry inside, except for a small amount of condensation. However Kurt drilled a hole for future drainage and to alleviate future condensation. Intiallized cabling setup for ingest of data to ADAM. Found mismatch in PAM/ASTER DC power connectors. Used 2 batteries until we receive cables from Boulder.
Site Visitation Log Entry ========================= Tech: JM Weather: warm, clr, lt w wind Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Replaced Campbell logger. Installed #3 to match the sensors here. Checked malfunctioning Tsfc taken off station 2 a few days ago. It appears to be OK, but occassionally glitching. It probably has dried out after the rain/crash it experienced.
Campbell Logger: Replaced unit #1 and installed unit #3 in order to match the sensors that were installed at station1 to the logger that's programmed with their coefficients. Tsfc Test: We tried out the 'questionable' tsfc sensor that was taken off of station #3 the other day after it had 'failed' during or after a rain storm. It did report good looking values, however, an occassional glitch was seen. It appears that either the sensor has dried out or else there's a problem with the a/d at station 3.
power to station 1 now comes from cosmos' power distribution box the atik is also routed into cosmos channel 200 and the Krypton is on channel 108
Site Visitation Log Entry ========================= Tech: . Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Soil sample taken for shake-n-bake. Another check of bad Tsfc from sta3...it seems OK, will leave it here at lower xarm for a 1-day check. ATI level adjusted to within .02/.04 from .1/.12 (for a/b).
Between 96/06/15 ~18Z through 96/06/16 16:40Z. The Tsfc sensor at station 1 was swapped with the 'bad' sensor from station 3. This was done to determine whether the sensor from 3 or else the electronic box there was causing the erroneous values. It appears that the sensor is OK. It was mounted overnight on station 1 on the lower cross-arm, pointing SE past the TRH.
Site Visitation Log Entry ========================= Tech: . Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Put originial Tsfc back online.
Barometer at station 1 stopped at 1300 gmt, June 18. John notes that this appears to coincide with a station reset. Station visited: 22:15-23:05 GMT. Back Online: ~22:30 Barometer simply needed a power cycle. Apparently the reset was a quick hit, or sag which sent the PTB220's program into hyperspace.
Site Visitation Log Entry ========================= Tech: JM Weather: MOSTLY CLR, W-WIND Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Baro dead: power cycle restarted it. ETI check: seems to under-report, need to do more testing with PC diagnostic tool. Uploaded data. Corn height to SW: top of knee high (23").
Station Visit: 22:15-23:05 GMT, 96/06/18, JD170 Check Corn height: 23" (top of knee) Uploaded METPPF Data: Barometer Fixed: Power cycle required ETI Test: The ETI's are under-reporting rain. I performed some tests to determine whether this is caused within the ETI, or else the Campbell Logger: - Conditions: Warm, West wind ~4-7m/s - Electrical: OK ETI is wired correctly and Campbell P1 port is being held at 4.8V. - Initial Test: Poured '44-tip' water in quickly (~10 seconds) heard multiple sets of 5-pulse beeps each second and saw the 'tipping' on the CR10 using a digital meter observing about 15 'cycles' NOTE: that with this meter i could not tell whether or not the pulses were actually pulling the P1 port to zero. Via EVE, logger reported 10 tips. Waited approximately 5 minutes...no more pulses. - Power Cycled Box while doing other tests/baro/etc. - Second Test: I decided to rerun the test and try to count the 'tips' exactly because i may have missed a few on the first go around because the beeps and meter 'pulses' didn't coincide exactly and i lost count a bit. By my watch.... 17:53:10-20 poured in '44-tipper' 17:54:28 14 beeps/pulses 17:55:28 3 beeps.. 17:56: nothing 17:57:28 1 beep.. 17:58 nothing 17:59 nothing EVE Check: 11 tips, not 18 - Third Test: simply because.... 18:01:15 poured small remaining amount of water in 18:02:28 6 beeps/etc. 18:03:28 4 beeps/5 pulses....odd, but... 18:04: nothing more EVE Check: 6 tips, not 10 - Conclusion: - I need to re-do the tests using a scope to count exactly, and the ETI test software to examine what the processor says (didn't have the right cable today). - I believe the ETI itself is under-reporting and skipping the second and third minute pulses. - The Campbell may be missing tips, but cannot tell without seeing exact wave-form to determine whether the line gets pulled exactly to zero or not.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: continuing sta visit, download data.
Station Visit ~16:30Gmt 96/06/20, JD 172 Removed old FreeWave Radio Offloaded data. Measured Sonic height above ground.
Site Visitation Log Entry ========================= Tech: JM Weather: Ovc. Lt wsw brz. Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Replace EVE EPROM. ETI test.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: No report from ATI.rh Rewire ETI power download campbell pgm.
The Licor pyranometer does not go to zero at night, but decreases from zero at sunset to about -7 W/m^2 just before sunrise.
Station 1 Visit 14:45-11:45Z, 96/06/21 JD173 New EVE EPROM installed: Matt's zeroing of bandpass intercept and RTC software adjustment. New Config: Per new prom requirement on CREATE bp... Also new BPH / RH coefficients. ETI / Campbell Tests: Fake Tip Test on Campbell P1: 10:23:05 20 ~1-sec pulses on P1 EVE before: 0, after: 7 IE MISSED 13 counts! 10:27:00 Repeat 20 1sec pulses EVE before: 7, after: 15 IE MISSED 8 counts! 10:33:00 What the heck another try 30 pulses EVE before: 15, after: 29 IE MISSED 16 counts! CAMPBELL TIPS NOT COUNTING CORRECTLY! ETI Rain Test: Begin Fluid height: ~3", 7.55cm c:\eti\PG2GCOMM communications program:... F7, test counts 14964 Tld 302 Tbd 302 inch 2.563 10:46:00 44-tip qty added Fluid height: ~3.34, 8.4cm F7, test counts 16224 Tld 302.33 Tbd 302.33 inch 2.826 F5, Check Coef: GONE TO DEFAULTS!!! cnts 3300*(190/1000)=inches/.001 for >42000 cnts 3000*(200/1000)=inches/.001 for >21000 cnts 2700*(209/1000)=inches/.001 F6: Reloaded Coef per Jerry's list for sn 58 11:05:00 F7, test counts 16230 Tld 303 Tbd 303 inch 4.034 44-tip qty added Fluid height: ~3.81, 9.6cm F7, test counts 17492 Tld 303.33 Tbd 303.33 inch 4.478 Exit Program 11:14:00 EVE 77...ie TOO LOW!! 11:20:00 44-tip qty added Fluid height: ~4.25, 10.8cm 11:22:00 14 beeps 11:23:00 2 beeps done! EVE 86...ie TOO LOW! NOT ENOUGH BEEPS.... PG@GCOMM Checked EEPROM F5, Check Coef: GONE TO DEFAULTS!!! Power on Campbell to ETI: 11.15 LOW!! Re-established power ground, it was a bit loose. Reprogrammed ETI Coefficients once more. Contact Jerry Price: He suspects the Campbell program may not be burned into PROM correctly. Unclear why ETI is dumping EEPROM: voltage sag would do it.
Station Visit 20:50-22:00Z, 96/06/21, JD173 ATI/BP RH Coefficients Corrected. The coefficients i used earlier from the printout we received with the fast BPH units were incorrect. Steve provided the correct ones and the ATI.rh values came back in line (per EVE, before=-80,m after=54) ETI / Campbell ETI PG2GCOMM check of coefficients: OK Campbell program: c:\c21x\term pamiii Attempt to communicaion Could not Establish link.!!! Power Cycle ETI PG2GCOMM F5 check of EEPROM: DUMPED AGAIN!!! Slow and Fast tip tests of Campbell all resulted in under counts.
Site Visitation Log Entry ========================= Tech: JM Weather: Hot, Lt Brz Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Install Freewave. New Config (but same coef. as what were put in yesterday).
Station Visit: 18:40-19:40Z, 96/06/22, JD174 Installed Upgraded FreeWave Radio #560-0573 Uploaded Data: JD172,173 New Config Attempt: I tried to install a new config that included a new MESG format for ATI by having a CREATE of ATI.[u,v,w,ts]rate for percentage of spiking as determined by the respective spike counts divided by the ATI.cnt value, but the 'divide' option complained about the '.cnt' value even though it exists. I ended up putting in a revised config that simply includes a printout of the ATI.cnt. Otherwise the coefficients for the config are the same as the ones put in yesterday.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Check Freewave.
Station 1 Visit: 14:30-14:45Z, 96/06/23 Freewave reconfigured, now works. Commented out offending CREATE statements in the new config.
The soil temperature plots show that station 1 is noticeably warmer than stations 2 and 3. When I installed this particular sensor, I recall that the wire near the sensor was very close to the surface. I visited the site around 1400 CST and found that a short length of cable near the sensor was actually on the surface. I tried to push the sensor a little deeper and reburied the cable.
The barometer at station 1 stopped yesterday around 1430 CST, presumably because of AC power failures that we also experienced around that time at the PAM base.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Install BPH s/n 40 from sta 3. Batt box. Raise power level. Maybe an ETI coef. dump test.
Station 1 Visit: 21:50-23:45Z, 96/06/24, JD176 BPH #40 Installed This was the turkey from station 3. Still looks out...approx 1.8 deg higher than trh mounted at 2m. Correct coef. were loaded earlier today; confirmed that. Batt. Box Installed Put in the box taken from station 3 today, but with a Deka gel. Noticed the VBATT MONITOR dropping out on eve, but not on the charge board distribution connector....probably LOOSE WIRE ACCOUNTS FOR THE SAW-TOOTH we've seen with this box. ADAM DC Power Problem: While getting ready to put on the batt. box, i monitored the DC from the ADAM. As before it was hanging around 11.15, however, i noticed a glitch or two dropping as low as 10.5 or so. Tried to tweak DC supply adjustment pot in ADAM power dist. box. It was way sensative, and i saw lots more 'jumping around'. This happened even after totally disconnecting from everything else. Ended up discecting the dist. box to get at the stuff. At one point, the supply 'died' while trying to adjust the pot. Finally seemed to get the DC supply going and stabilized at 14. Plugged it into the batt box solar in. There it seems to be holding the battery at 13, fully 'PAM' loaded for the moment at least. I may need to adjust the supply again tomorrow when the battery has filled up. This is probably too high for it. APPEARS as though the DC SUPPLY is a bit flakey in this ADAM, or has a loose connection on the board. PROBABLY SHOULD BE REPLACED, OR THOROUGHLY CHECKED out. ETI Coef. Drop Problem here at least may be explained by the power glitching on the ADAM. However, i've seen the same symptom at station 2 (solar). Didn't have a chance to 'scope' the ETI input power signal on powerup to look for that possible cause of the reset....tomorrow maybe. [to avoid rutting the field and lug battery out, got to ride the UI's 4-wheel ATV....yeeehaaah!]
Station 1 Visit: 15:40-16:00Z, 96/06/24 JD176 Removed BPH s/n 23 In order to put it into station 3 to nail down the 'error' there. New config: sta001a.dat installed with the correct coefficients for BPH#40 that will be put in here later today. Barometer Resurrected by a simple power cycle of the box. The barometer must have gone into limbo again from a power hit during the storm last night (sunday).
Site Visitation Log Entry
=========================
Tech: JM
Weather:
Set Clock: N
Trh IC: N
Baro IC: N
Rain IC: N
Coments: Remove BPH #40 for checkout/repair in Boulder. Soil Sample.
Checked vbatt monitor. ETI coef. loaded. A most beautiful nest
has appeared on the tripod and a pissed off looking robin is now sitting
on the Licor...no eggs yet.
Station 1 Visit: 17:05-17:15Z, 96/06/25, JD177 BPH #40 Removed to be returned to Boulder for checkout and repair/recal. as needed. Soil Sample taken for moisture checks. A most beautiful bird nest has appeared on the tripod, and a pissed off looking robin is sitting on the Licor.... no eggs yet.
Station 1 Visit: 22:05-23:35Z, 96/06/25, JD177 BPH #23 installed once again. It works and the correct config was reinstalled and confirmed. Crop Heights: I'll repeat this in another message, but... Nominal corn to the SW: 35". Peak 42". Min 30" Power Monitor System: Logged Elsewhere ETI Test: logged elsewhere.
Occasionally we have seen some 'sawtoothing' on the TSFC sensor at station 1. Also, at Station 3, we saw much 'sawtoothing' on the power monitoring system until the battery charging box was swapped out. Two days ago, the 'offending' box was put online as a UPS buffer for the a/c power system on station 1. Unfortunately, it's Vbatt data immediately went into a big oscillation between 0-16V. So in order to chase that problem.... Station 1 Visit: 22:05-23:35Z, 96/06/25, JD177 Power Monitor System: The Vbatt reported by EVE from this charge controller box has been bad, previously at station 3, now here at 1. The actual battery voltage and the divider output are rock solid. The EVE a/d system monitoring capability was rock solid. The config for vbatt was correct. Nevertheless, EVE message reports jump all over the place from 0.08 to 16, and back, etc. Jumpering to make sure the ground connections didn't help. The vbatt monitor voltage is around 2.3V (also shown by eve a/d) so appears to be consistent with a 5/1 voltage divider so the resistors are probably OK. It almost looks like we're getting a wrap around on the A/D softw. count for some reason...will need to pursue this later after looking at some documentation/etc. Conversation with Matt: It now appears that the problem at this site is probably the CPU board he sent out when the other one died. He indicated that this one has a PAL problem in switching a/d channels. That's consistent with the 'residual/wrap-around' problem mentioned. Why it's effecting channel 0 (vbatt) and seemingly not the others..... Therefore: to prevent problems with TSFC and hopefully remove any more episodes of sawtoothing on it, i'll comment out the A/D channels 0-3 sometime today. We should look at the 'sawtoothing' on the TSFC to see if it's been temperature related.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Raise Sonic from 3m to 4.5m. 35mm 360 photos. Change cfg to remove ad channels.
This occurred at perhaps 23Z, 96/06/26 The previous position was at: 3.21 meters from the centerline of the boom on the mast to the ground.
To test the hypothesis that the CPU here has an A/D switching problem in its PAL, and to minimize any potential effects on the Tsfc sensor, which has had some minor 'sawtoothing' as well, I slapped together on site in the Compaq, a modified EVE sta001.dat configuration that removed the sampling of AD1,2,3 but retained Tsfc on 4 and Vbatt on 0. This config still sends the proper number of message bytes (confirmed that) but for the 6 'power value' slots sends Vbatt: avg, avg, avg, min, max, max instead of: Vbatt-avg, icharge-avg, iload-avg, tbatt-avg, vbatt-max, icharge-max I looked at the zeb plots this morning and it looks very odd. After i left the station last night, the vbatt was indeed sawtoothing but rapidly that damped out and it looks pretty stable since about 3,Z. Interestingly, the tsfc there also appeared to slightly sawtooth immediately after i left, but within an hour or so, just when the vbatt began to damp out and settle down, the TSFC quit having oscillations. Granted it was late in the day and the sun was low in the sky, but the entire day had quite clear skies and no clouds. Will need to continue to monitor this. It does appear that there may be some very small oscillations in the TSFC data at 3 as well, but that could be my imagination given the situation at 1.
Station 1 Visit 21:40-23:45Z, 96/06/26, JD178 ATI raised to 4.5m New config for Vbatt EVE A/D monitoring: logged elsewhere
The Vbatt monitor in station 1 is still sawtoothing badly even though with the kludge config EVE is now only sampling the TSFC and Vbatt channels (0 and 4). Even though the TSFC looks OK, I probably need to take out the AD monitoring of Vbatt. What i may do for giggles is to get rid of the channel-0/Vbatt, but put back in the load current instead to see if it glitches on channel 2 also.
Site Visitation Log Entry ========================= Tech: JM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: New campbell proms, ETI coef pgmed. ETI / campbell put on separate power line to retain ETI coef. Buried Tsoil line more. New cfg with iload and Tsfc
Station 1 Visit: 18:00-19:20Z, 96/06/29, JD181 New Campbell Prom installed. ETI Cal. Coef. Programmed. ETI Power cable to battery box installed. ETI Test: logged elsewhere Uploaded Data. See Other items logged separately.
The TRH inner shield tube was inserted fully so that no air could flow between it and the outter tube. The configuration was corrected, but there may have been a small influence on the readings possibly, i.e. slightly too warm.
The temporary 'Vbatt' and Tsfc only configuration that had been in at this site did somewhat improve the Vbatt readings, eliminating the constant sawtoothing, but the sawtoothing was still evident, and may still be attributable to the EVE a/d servicing. A new temporary config was installed today at about 19Z that sends only the Iload and Tsfc values. This is a different form of the same sampling test, but just a different pair of a/d channels 2 and 4 instead of 0 and 4.
Station 1 Visit Buried about 4" more of the Tsoil cable to see if there was any heat conduction from that to the sensor that was causing greater variations during the day. However, the corn rows are oriented E-W and it is possible to observe leaf shading that 'comes and goes' as the sun transits. (see station photos)
The krypton is running on cosmos.
Cosmos was re-booted to correct a channel_config error.
Notice cosmos has gone down. I tryed an mxreset from base. This was unsuccessful so I am heading to the corn fields. A reset on cosmos got it going again. At this time the reason for the crash is unknown. Cosmos backup around 20:15 GMT.
Site Visitation Log Entry ========================= Tech: srs Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: work on cosmos. Recycled power, cosmos back up
Site Visitation Log Entry ========================= Tech: srs Weather: SUNNY Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Site Visitation Log Entry ========================= Tech: srs Weather: partly cloudy Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Site Visitation Log Entry ========================= Tech: srs Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
Site Visitation Log Entry ========================= Tech: srs Weather: partly cloudy Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: downloaded 181 to 186
Site Visitation Log Entry ========================= Tech: srs Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: difference: T higi about .25C, rh high about .6%
visit time: 14:00 - 14:30 GMT Temperature IC showed similar results as ICs at stations 2 and 3. The temperature was about .25C high and rh was .6% high. The robins at the nest are getting mad about our unschedule visits!
Cosmos went down after Gordon loaded some new code. Gordon is looking at the code and will modify.
visit time: 15:30 - 16:00 GMT A soil sample and measurement of the crop height was done at station 1 around 15:45 GMT. Refer to logbook entry #35 for soil and #39 for height. The crop height along the fetch angle is at 1.7m so we will need to move the sonic.
Cosmos went down for a short period starting at 16:28 GMT. Based on the console log it was done by Gordon to download new software code. It was backup at 16:33 GMT.
Site Visitation Log Entry ========================= Tech: srs Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: moved sonic to 5.7meter height.
visit time: 18:30 - 19:30 GMT The sonic at station 1 was moved to 5.7m. Due to cloudy conditions the angle of the boom will be done tomorrow. The boom level will also be adjusted tomorrow if the winds are down.
Site Visitation Log Entry ========================= Tech: clm Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
The new boom angle for station 1 sonic is: 224 degree 51' 12" The cahnge took place yesterday at 19:00 GMT.
Cosmos will be down for awhile due to a large mechanical rodent crewing up the power cable; ie, a farmer decided to cut the hay to the north of the site not knowing about the power cable. The cable was cut in two places. Pam should stay alive since the battery is fully charged. A backup battery will be put on charge in case repairs take awhile.
Site Visitation Log Entry ========================= Tech: srs Weather: partly cloudy Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: COuld not get alevel within 0.1 Ran out of turn-buckle. Disconnect Krypton so Battery not drained due to loss of AC power.
visit time: 18:45 - 19:15 GMT Leveled sonic after moving it yesterday. It was too windy yesterday. I was not able to get alevel within 0.1 because I ran out of turn-buckle.
Cosmos is down for the night. It appears to have a backplane problem. Gordon has been informed of the problem. We should have a spare set of ADAM boards sent out. Will try things in the morning.
The matrix card had to be replaced. Cosmos is looking good now.
Site Visitation Log Entry ========================= Tech: spo Weather: sct Cu, some gusts Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Tsta high by 0.55C, rh off by 1%
Site Visitation Log Entry ========================= Tech: spo Weather: OVC, light N winds Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Chick hatched! Drops of rain. broke some leaves around rain gauge.
Just cleaned mud(!) off the Licor and also cleaned the Q7 dome while I was up there. The Licor was caked with lots of mud - I can only speculate that birds have carried some up there while working on their meals. I used toilet paper and saliva as the cleaning agents and think I did a reasonable job, but others reading this comment may want to let me know if they think I should reclean the radiometers with something different. It was a good view of the site from there - see the next comment.
The corn has been flattened in many areas. There are groups of 1-10 plants which are now leaning severely or even flattened after yesterday's rain at this site. It could be associated with the wind or heavy rain, but I suspect it may just be that the now wet soil isn't supporting the weight of the plants well. I tried to step carefully (not easy when carrying a ladder) to avoid damaging the crop further. [I plan to take some pictures today.] Also note with this site that the hay area which was moved significantly changes the fetch from the north (which would have been different anyway). Fluxes when winds are within about 30 degrees from north should not be interpretted as representative of corn. Something else we noted in PAM's Compaq log yesterday - one egg at station 1 has hatched, so we now have a hungry chick! We're trying to avoid further visits - at least to the tripod area. P.S. We may want to add another logbook category for this type of comment.
Site Visitation Log Entry ========================= Tech: srs Weather: winds from west Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Licor reading negative at night. Decided to clean head again. Did simple test with cap over sensor. Sensor measured about -25 w/m^2.
visit time: 15:15 - 15:45 GMT The licor was acting up again last night. It seemed to work fine during the day time after cleaning the sensor. However it read negative values at night. A simple test was done by covering the sensor with a black cap. The output went to -25 W/m^2. The sensor was cleaned again and the black cap test was run again. The output was the same. Will monitor the sensor over the next 24 hours.
We've just installed the chem shelter about 1/2 way between the tripod and the adam at station 1. We removed 5 corn plants to get it into its present location. We also knocked down about 1 plant/row getting it in place, which we attempted to straighten. power, and data lines are now connected - we plan to put the Datel voltage calibrator on some of the channels later (perhaps even tonight). I agonized over this location for the shelter, and actually pulled up another 5 plants (which I also attempted to replant) at the tripod itself when I was initially thinking of the chemistry needs (short tubing) only. The present location should be reachable by a 10m inlet tube. My concern about getting closer was that the heat exhaust of the air conditioner could contaminate the hygt sensors. Also, the first location was very close to the pressure port (would it induce a flow anomoly?) and close, but not in, the surface temperature field of view.
The Datel voltage source is attached to analog channel 0 on cosmos. It is being used to check out the analog channels for the ozone system.
My first CRUDE attempt to get soil density yielded 2.5g/cm3. I am simply weighing the samples which Steve took on 7/15, assuming that he cut out a perfect 5cm x 5cm x 5cm cube. Obviously, this should be done with dry soil to get the dry soil density, but I wanted to use the oven to process the samples we took today. Thus, I dried only the sample from PAM1 for only about 4 hours. This measurement was further complicated since I used a plastic plate which melted (slightly) in the oven. This one (partially dried) sample weighed 308g - nearly the same as the samples from the other 2 stations which have simply been sitting exposed in the trailer. 308g/125cm3 = 2.46 g/cm3. I'll get some metal pans and try drying these (and today's) samples more tomorrow after the "dry" weighing of today's samples.
Cosmos went down at 14:34 GMT. mxreset would not get it going again and cosmos does not respond to ping. Will do a hard reset.
Site Visitation Log Entry ========================= Tech: srs Weather: sct Cu, ligth NW win Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: leveled net, swapped Licor, cleaned BPH, cleaned Krypton, rebooted cosmos, new Licor cal in Campbell, rebooted EVE (Tc spikes)
We also reset EVE to try to reset the Tc spiking.
After the mast was lowered for cleaning of the krypton and BPH the angel of the sonic boom was checked. Two measurements were made. 224 degrees 51' 40" 225 degrees 21' 30" These are very close to the last measurement made when the sonic was moved up the tower.
At least some plants at site 1 are now at VT and R1
The polarity was reversed so + is now into the high channel. The gain in the Campbell was changed to +94.0 from -93.56. If the logger loses power and starts up with the old gain, we will know it because the signal will be negative! Hopefully this change will help our nighttime negative values.
It was 1/2 bubble up to the NE.
The sensors themselves looked pretty clean, but I washed the humidity sensor with tap water anyway. There were a lot of webs/seed strands in the plastic guard that I also removed.
Because we have been seeing increasing humidity differences from the krypton, I cleaned it in the same big visit to PAM1 today. The tissue came off a bit dirty. This appears to have restored the signal bias.
Site Visitation Log Entry ========================= Tech: spo Weather: sct Cu, light NW Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: Also Assman IC T exact, RH 2% low!
The spikes on tc are continuing eventhough ther are not any spikes on u, v, or w. It may be time to power down and re-start EVE. The last time the key was turned to reset not powered down. Maybe reset is not hooked up.
Cosmos was shutdown at 17:55 GMT to see if the FreeWave communication is the source of profiler interference.
Cosmos is back up. During the bootup period there was no noise seen on the profiler. Will monitor the profiler.
Got the sonic at PAM1 going by vigorously shaking the tower (to try to get the drop on the w bottom transducer off) and then cycling power. I'll do this at PAM3 next, but will wait on PAM2 since it is so wet and muddy.
Measurements taken while hooking up Greg's ozone stuff, see comment #39. Also took a soil sample, see comment #35. Sorry, I didn't get a chance to get to the other sites, since I was busy with Greg.
Greg Kok and I spent most of the daty setting up his ozone sensors. Everything is now installed, but he doesn't have the NO flowing, (because he wasn't able to get dry ice today), so there is no fast ozone signal. He now has: - two inlets strapped to the BPH tube, - sensors in the chem shelter Steve S. and I installed, - a big pump sitting on the transformer box with the outflow going through a garden hose which exhausts on the east side of the darkhorse, - a bottle of NO laying in the "clearing" along the access path, connected to the chem shelter by a length of thin stainless steel tubing. [A lot of stuff scattered around this site!] We had some trouble with "brown-outs" on the power. I switched power cables between the adam and chem shelter, resulting in (actually several) reboots of cosmos. After talking to Kurt, I think I have the best load distribution I can get, but I'll try to measure currents tomorrow.
We dropped the tower (with both robins) today to install the ozone inlet. As long as it was down, I cleaned the krypton (which was filthy - I think the robins are sabotaging it!). The krypton signal level looks pretty good now. I also opened up and popped the connectors on the BPH (at Steve S.'s suggestion) to try to reduce the noise we've seen on the temperature. It looks somewhat better, but I'll give it more time before declaring it fixed.
Cosmos died about 0745 last night with "ingest socket write to aster.8000" errors. In the confusion of introducing Matt, Greg arriving, and Lou calling, I neglected to check_aster or look at the log file to isolate the problem. We rebooted it about 40 minutes ago and it seems to be running again.
Since we had some brownouts yesterday, I made some power measurements - the quick summary is that we seem to be balanced perfectly: Greg's pump (off one side of the transformer): 8.2 A The chem shelter, with air conditioner and ozone (off the other side): 4.5 A Adam and PAM: (also off the other side) 3.5A Thus, 8.2 A of the pump is balanced by 8.0 A of the other stuff. This is well within the range of the 20 A breaker on the input and 15 A breakers on each of the outputs of the transformer. (Therefore, the cosmos crash probably wasn't power related.)
Swapped cpu board at station 1. New board is the extended temp range board. Changed config to read all the A/D channels now. New config with old board definitely gave garbage: got 5.4V on the power. New board gave about 13V on the power.
Greg didn't like the TECO output, so he cleaned it this afternoon. The data now look pretty stable to me, but Greg plans to return this evening to look at it.
Greg wants to monitor the temperature in the chem shelter, so I've given him another channel (106). I changed archive, prep, covar, and channel configs in $OPS1 and am now rebooting cosmos. Hopefully, everything will come up well, since I want to leave soon for the day.
We came in this morning to find that cosmos had crashed again, with network error messages in the "asterlog" file which were similar to those from previous crashes. I rebooted (with the key, since it didn't ping), and it crashed again in about 2 hours. We have taken the following steps: 1. "niced" the pam ppf2netcdf process, which may give the network handling higher relative priority 2. removed a lot of the error messages in "sync.cc" to avoid the network being "message bombed" when a crash starts. We have noticed that once cosmos gets one sample that doesn't get through that a crash is imminent. 3. We looked at the statistics on the freewave in the trailer which said that only 57% of messages were received. However, we don't trust this number, since Matt got 9% when he repeated it, and 0% on the pam modem. After discussions with Steve S., there are many more options - some harder than others - depending on what the source of these crashes is. At this point, we don't know if the problem is aster being overloaded, the RF link not being reliable (or being interfered with) or a power glitch (our only guess as to why it is worse now that Greg is here). P.S. it crashed again while I was typing this!
I see that cosmos ingest stopped again; cosmos did not produce the EPIPE errors, and did not "self mxreset". I have done an mxreset to try to bring it back.
The cosmos ingestor ran happily all night; about 14 hours so far. Who knows what is causing it to intermittantly timeout on the polling?
We started both ozone sensors about 0900 local. They had been off last night to see if cosmos would crash (it did). See the next message for the start-up procedure.
LIFT Ozone Operating Instructions: GENERAL WARNING: Whenever entering the cornfield listen for operation of the sample pump. If the pump is not operating, do not proceed. Position yourself upwind of the pump and fast ozone instrument, go to the NO cylinder, and turn off the NO cylinder and regulator valve. Exit the corn, wait 30 minutes for any NO to dissipate, go to the pump, keeping yourself upwind of it, and attempt to restart it. The pump has an automatic thermal overload protection on it. If the pump cuts out, it will restart automatically when cool. Use caution. TECO ozone instrument can be left on at all times. Every day, check that the instrument is on, the pump is on, and that the P/T button is in. FAST OZONE STARTUP: 1. Fill PMT cooler with dry ice. If you plan to operate overnight, it will need a second filling at the end of the day. 2. Turn on fast ozone control box. 3. Turn on sample heater variac 4 Turn on high voltage for PMT (left side of instrument) 5. Disconnect fast O3 signal lead (channel 0), and measure output voltage with meter. Record dark output voltage on log sheet. Reconnect signal cable. The BNC connector on the signal junction box is a bit loose, take care not to twist it when removing/reattaching the cable. 6. Turn on sample pump at breaker on transformer. 7. Check pressure on fast ozone control box. Turn the rotary switch by the meter all the way counter clockwise, that position is blank. clockwise on click is NO flow, then sample flow, then system pressure. 8. Check sample flow. 9. If sample pressure is greater than 120 and sample flow is less than 300 do not proceed. There is most likely a problem with the sample pump. Wait a few minutes to see if the flow/pressure improve. Otherwise check for leaks. 10. Turn on NO cylinder valve and regulator valve. Record cylinder pressure and regulator output pressure. 11. Check NO flow at instrument and record setting and NO flow. 12. Record shelter temperature and instrument temperature. SHUTDOWN: 1. Close NO cylinder valve and regulator valve. 2. Turn off high voltage to PMT tube. 3. Turn off fast ozone control box. 4. Remove any remaining dry ice from the PMT chamber. 5. Make sure that the pump has run for at least 10- preferably longer, 20 + min after the NO has been shutoff. Then shut the sample pump off.
This time, cosmos self-recovered. Wonder why it didn't last night?
Installation and operation notes-fast ozone in LIFT/FLATLAND '96 7/22/96 Setup system in cornfield at FAO. Install inlet line on tower. Each ozone instrument has separate inlet line. Inlet line length approximately 30 ft. TECO inlet line has angle cut on the inlet end. TECO opertational mid day. Large variation in O3 as measured by TECO. Cycling of air conditioner causes spikes in O3, probably humidity problem. Run fast ozone overnight without NO on and no dry ice on PMT cooler. 7/23/96 Put dry ice on PMT and connect NO. TECO still giving spikes in data. Approx 14:30-15:30 pull TECO out and change windows. Found traces of oil on inlet side windows. Clean cells, check lamp frequency and everything is OK. Freq A=124,522, B=119,734. Insulate complete length on TECO inlet line. Approx 18:30 shut system down, remove FO3 driver box and connect other OMEGA temp readout to twinax on back for connection to data system. Reinstall entire unit operational about 19:30. Run FO3 overnight with PMT cold, and no nitric oxide. Data system crashed about 22:30 local time. 7/24/96 Insulated end of heater and reactor for fast ozone. Put dry ice on system. Started NO about 09:00. TECO data looked good last night. Rained at least once during the night. Discussions with persons at the DIAL O3 site indicate spikes in TECO measurements. Need to check if they correlate with PAM 1 measurements. System shut down at 17:30 to check if operation causes datat system to crash. Data system crashed once during the night, so ozone system is not the cause. 7/25/96 Start TECO and fast ozone. Fast ozone pump sounded a bit stiff when starting up.
LIFT Fast Ozone Details: Dry ice can be procured from the Community Blood Bank of Illinois, 1408 University, Champaign. (367-2202) Hours are 8-4 M-Th and 8-5 on Fri. They typically get deliveries of dry ice on Tue and Fri. The price is $0.65/lb. Give them the NCAR tax exempt number 98- 02203 and they will not charge sales tax. We need about 5 lb of dry ice per day of operation for the PMT, plus evaporative losses require an amount of about 7-8 pounds a day. The chart recorder is running on the TECO. I suggest we leave this run. Note the time on the chart every day. There is a mark button on the upper right corner of the flatbed, punch this and note the time on the chart. If it looks like the TECO needs cleaning, use care when cleaning the windows. They scratch easily, and that causes problems with water vapor interference. If the instrument is cleaned pay special attention to the teflon flat washers and the rubber gaskets around the windows. Clean these really well with alcohol and then dry them by pressing in a paper towel. If the fast ozone has a high background signal, the most likely problem is a wet PMT. Keep track of the background "dark voltage" each morning and that is a good indicator if you have a problem. Make sure the PMT chamber is up to ambient temperature, pull the back off the chemshelter, this is much easier than getting the instrument rack out and getting access to the back of it. Disconnect the cables from the PMT socket and pull the three screws that hold it in. Gently pry the socket out, handle the PMT only with a paper towel between it and your hand. Put the socket in the oven for an hour or so at 40 deg, use the heat gun to gently dry the housing. Assemble the PMT and the socket in the dry of the trailer, wrap the assembly in paper towels and return to instrument for reassembly. There is an additional cylinder of NO in the chemshelter. Use this if necessary. System Checks: Every two days, run a power spectra analysis and a cospectra on the fast ozone. Look at these and keep track of them to validate instrument performance. Weekly (preferably on Wednesday) check the frequency on the TECO lamp. Push in button A, wait for a number of about 100K or greater, then do B. Then push RUN to the instrument back to regular operation.
Site Visitation Log Entry ========================= Tech: MM Weather: parital clouds Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: get data, Assman IC, empty rain gauge and reload coeff. This note's time is a bit on the late side.
Offloaded data jd201--207 Did Assman I.C.--looked pretty good really. Results of I.C. to be posted to logbook in future entry with all I.C data Drained ETI rain gauge, reset power, put coefficients back in.
I noticed, by grepping on EOF in asterlog, that the cosmos problems are mostly between 15Z and 0Z. It has successfully reset itself several times this afternoon., so it looks like the auto mxreset is working okay right now.
Greg and I dropped the mast to perform the ozone delay time tests this morning. (early to have the mast back up before the LIFT "intensive" period starting at 8 AM (which includes the ozone DIAL system) ). I also cleaned the krypton, which didn't look too bad. Note that we did some weird things with the analog signals for this test: The cable from channels 4-7 in the chem shelter was connected to channels 108-111 (thus no signals were coming in to channels 104-107 and the krypton signal was disconnected). This allowed us to use channel 108 for the valve switch indicator. Everything was back to normal about 1250Z. P.S. We find 0.4 s for the delay time. This could be a slight overestimate if the valve delay is significant (probably less than 0.05s). This value is pretty close to 0.3s found from the krypton-ozone lag correlation.
I swapped EVE's yagi and cosmos's omni RF antennas about an hour ago to attempt to fix cosmos's problems. In the process, I killed EVE rf, which we will restart in a few minutes. We'll also check the freewave settings.
On our way out today, we will shutdown the ozone system, since Greg only wants it to run every 3-4 nights and it ran last night.
I just started Greg's fast ozone instrument. All readings were normal.
cosmos ran flawlessly last night, and then crashed this morning (while I was at the site). Apparently, the antenna switch yesterday didn't solve the problem. It rebooted by itself as usual.
Because of the low values from the PAM1 licor, I cleaned it about 45 minutes ago. However, it looked pretty clean already, so dirt may not have been the problem. It is too cloudy now to know if the cleaning worked.
Note that the did name "conc.O3.teco.0m" is misleading. Greg has a second inlet at the sonic (currently 5.7m) to feed the TECO. This did probably should be conc.O3.teco.3m. However, I don't plan to change it at this late date.
Site Visitation Log Entry ========================= Tech: spo Weather: gonna rain Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: changed config to add fast O3 and TECO. Had to wire teco into ch 7 rather than ch 6 on A/d
C A B L I N G ============= Added cabling to T-off the BNC connector in the chem shelter and get fast O3 into PAM. Here is the O3 cabling info for PAM. The AD-1 (chan 4--7) cable is used to connect the Ozone. This connector is also used for the Tsfc sensor. Tsfc is on chan 4 . The other end of the cable is an adapter to get from BNC via: BNC-T --> BNC-to-phono_plug --> cable Red phono plug--> red/black wire pair --> 16 pin amp, ch 5 pins 4=+, 5=-, 6=shld. pin 5 is jumpered to pin 6 White phono plug-->white/black wire pair --> 16 pin amp ch 6, pins 7,8,9 Blue phono plug-->green/black wire pair --> 16 pin amp ch 7, pins 10, 11, 12 Note: only channel 5 has the jumper from the negative side of the differential input to ground. Red plug goes to fast ozone (EVE analog chan 5) White plug not used (seems to have a short somewhere) Blue plug used for Teco (EVE analog chan 7) There is a green piece of paper laying around with this information on it. It was officially placed in the thin white "technical" binder pocket, but that doesn't mean it will stay there long. E V E D A T A =============== Created new EVE configuration fmt0017.dat. The new config has fast Ozone (10Hz) and TECO Ozone. Delay of 0.4 sec added to fast O3 for covar parameters. Covars added are: O3:O3 U:O3 V:O3 W:O3 Also output are: O3.AVG (also with 0.4 sec delay) Teco.AVG (no delay) -- perhaps one should be added? The fast O3 data is being output in raw volts; calibration is to be done post-project. The Teco ozone is output in ppb. 10V full scale is 1000 ppb.
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Graphics file: Ozone power spectra before and after EVE 
Installed fmt0017 in station 1 and added cabling for Ozone. See previous message for Ozone tech info. The new config also has bandpass temp variance added as a new parameter. Steve O. requested this. See the attached plot for spectral effect of attaching the O3 sensor to EVE.
- 372: OZONE, Site 1, Sat 27-Jul-1996 23:01:27 GMT, ozone shutdown
Fast ozone shutdown about 10 min. ago since it might rain and the ozone DIAL should have been shut down at 5:35.
- 373: OZONE, Site 1, Sun 28-Jul-1996 14:11:30 GMT, ozone restarted
All settings normal. I notice from the daily plots that it takes a good hour for the fast sensor to (literally) warm up and give values which agree with the TECO - we should keep this in mind when coordinating with the LIFT measurements. (It is possible that the sensor temperature is an important part of the calibration and that the output values will agree when the temperature is included, but I am skeptical.)
- 374: ADAM/NETWORK, Site 1, Sun 28-Jul-1996 14:12:18 GMT, cosmos still up
...but it lost a few samples just as we walked in now.
- 376: EVE, Site 1, Sun 28-Jul-1996 22:01:23 GMT, Data collection problem with fast ozone
The fast ozone data on the PAM station is only being collected sporadically. The symptom is that the data synchronizer on EVE begins flushing data. This may mean that some part of the data collection is not keeping up properly. A possible test solution is to temporarily remove the sonic despiker and free up some processing. It's also possible that there is a bug somewhere in EVE which is causing the data synchronizer problem. The only way to really check this is with the development system.
- 377: OZONE, Site 1, Sun 28-Jul-1996 23:14:20 GMT, shut ozone down about 2255Z
There maay be rain tonight, and LIFT won't run tomorrow early AM, so we've shut Greg's instrument down.
- 378: OZONE, Site 1, Mon 29-Jul-1996 14:12:53 GMT, ozone back up
All readings normal - we use about 5 lb of NO per 9 hours = 13 lb/day, so with 500 lbs in the cylinder, we should have plenty even with 24 hr/day operation through the end of the experiment.
- 384: EVE, Site 1, Mon 29-Jul-1996 23:13:35 GMT, EVE bug and ozone data comparison
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Graphics file: plot of bad EVE power data 
Graphics file: Adam vs PAM fast O3:O3 covar 
Took a trip to station 1 this morning to try and determine why the power data was garbage. Restarted the data collection and the power data came back. Reminiscinent of the problems the GAME folks seemed to be having. Waited around the station for a while to try and see if it crashed again. No such luck. While at the station was inspired about the potential source of the problem. Began digging in the EVE code, and came up with a possible fix (no way to test it over the network). Tony will bring out a new EPROM which may fix the A/D problems. The problem is essentially a bug in the A/D software data stream which prevents proper buffering of data. Another remaining question on the EVE ozone data collection is whether the covar data for the ozone is off because of the 2.3 time second difference right now, or if there is another problem. There may be a second problem in the EVE data synchronizer, but it's also possible, that what looked like a problem in the data synchronizer was caused by the A/D data flow problem. Will get a better answer in a couple day's after the EPROM from Tony is installed. See the two attached plots. The first one shows PAM 1 power bad, then reset to good, then going bad. The second plot shows O3:O3 covars between PAM and ASTER.
- 385: BPH, Site 1, Tue 30-Jul-1996 02:45:06 GMT, problem with aster rh2o
If I've followed the code correctly, ASTER is using a DEFAULT pressure of 800 mb to compute rh2o from t and rh from the bandpass hygrometer (since it doesn't have a real pressure in the data stream). This probably is the cause of the differences between rh2o:rh2o from pam1 and adam1.
- 387: OZONE, Site 1, Tue 30-Jul-1996 14:30:28 GMT, fast ozone still going
I've just reloaded the dry ice (and got some more from the Blood Bank). The sensor ran all last night (even though it rained early this morning). All readings were normal.
- 392: VISIT_LOG, Site 1, Tue 30-Jul-1996 20:22 GMT, Routine
Site Visitation Log Entry ========================= Tech: MM Weather: scattered cu. Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: downloaded jd207--212 data. Assman IC and rain check. Site photos. ALSO: loaded fmt0019 to check for A/D software error counts. Set delay for ozone covars to 0.3 sec. No overall 2 sec delay any more.
- 394: VISIT_LOG, Site 1, Wed 31-Jul-1996 21:00 GMT, Aux sensor
Site Visitation Log Entry ========================= Tech: MM Weather: partly cloudy Set Clock: N Trh IC: N Baro IC: Y Rain IC: N Coments: Several things: installed new EPROM and new config. Swapped prop vane with RMY version--but old one seemed to be OK (slightly bent prop shaft). Installed Tony's "pipe bomb" ozone sensor (through adam only).
- 395: ADAM/NETWORK, Site 1, Thu 01-Aug-1996 00:55:04 GMT, added Tony's ozone channels
We've just added Tony's ozone instrument (conc.O3.secl.3m) and turned on an additional channel for the CU instrument if it ever comes. I just rebooted cosmos to make the change. (mxreset killed it, so the key was necessary). Note that the tower was down for about 2 hours (5pm to 7pm local) while we did that. This was mostly due to prop cabling problems - see next comment.
- 396: PROP, Site 1, Thu 01-Aug-1996 00:57:28 GMT, RMYoung prop installed
Since we have been suspicious of the bearings on the prop at site 1, we replaced it with our only spare - the RMYoung prop. This required some station software changes by Matt. Matt found that there were cabling and direction alignment problems with this new prop which he fixed on site. We will check the direction tomorrow, since the alignment was not precisely done.
- 399: VISIT_LOG, Site 1, Thu 1-Aug-1996 21:30 GMT,
Site Visitation Log Entry ========================= Tech: MM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: delete this visit record
- 400: OZONE, Site 1, Fri 02-Aug-1996 21:27:37 GMT, LIFT fast ozone checklist
LIFT Fast-Ozone Checklist ---------------------------------------------------------------------------- Date 7/23/96 Time start:10:20 Time finish:18:06 NO cylinder pressure: 540 (start) NO regulator pressure: 30 NO flow control setting(should be 506): Sample flow: Reactor temperature:30 Reactor pressure: TECO ozone sensor, on?: yes ,pump on?: yes ,P/T button in?: yes PMT dark current (voltage): Shelter temperature: Comments: Operator: Kok ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/24/96 Time start:09:00 Time finish:17:30 NO cylinder pressure: 530 (end) NO regulator pressure: 28 NO flow control setting(should be 506): 506 (read 244) Sample flow: 440 Reactor temperature: 30.3 Reactor pressure: TECO ozone sensor, on?: yes ,pump on?: yes ,P/T button in?: yes PMT dark current (voltage): Shelter temperature: Comments: System ran overnight without NO flowing Operator: Kok ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/25/96 Time start:09:10 Time finish: NO cylinder pressure: 520 NO regulator pressure:30 NO flow control setting(should be 506): read(247) Sample flow: 443 Reactor temperature: 22.1 Reactor pressure: 93 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage):0.6 volts Shelter temperature:23.5 Comments: Operator: GLK/MCM/SPOF ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/26/96 Time start: Time finish: NO cylinder pressure: 500 NO regulator pressure: 28 NO flow control setting(should be 506): 506 (read 244 Sample flow: 440 Reactor temperature: 29.3 Reactor pressure: 093 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage): Shelter temperature: 22.1 Comments: Operator: EK/SPO ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/27/96 Time start: 09:15 Time finish: NO cylinder pressure: 505 NO regulator pressure: 30 NO flow control setting(should be 506): 506 (read 246) Sample flow: 447 Reactor temperature: 28.4 Reactor pressure: 107 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage):0.1.45 Shelter temperature: 24.3 Comments: Operator: Steve Oncley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/28/96 Time start: 09:00 Time finish: NO cylinder pressure: 500 NO regulator pressure: 30.5 NO flow control setting(should be 506): 506 (Read 246) Sample flow: 447 Reactor temperature: 27.6 Reactor pressure: 106 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y PMT dark current (voltage): 0.16 Shelter temperature: 25.6 Comments: Operator:Steve Onley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/29/96 Time start:09:00 Time finish: NO cylinder pressure: 495 NO regulator pressure: 30 NO flow control setting(should be 506): 506 (READ 247) Sample flow:445 Reactor temperature: 26.4 Reactor pressure: 103 TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): 0.15 Shelter temperature: 24.7 Comments: Operator: Steve Oncley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/30/96 Time start: 09:20 Time finish: NO cylinder pressure: 405 (ran all night) NO regulator pressure: 28 NO flow control setting(should be 506): (read 244) Sample flow: Reactor temperature: 31 Reactor pressure: 91? TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: 24 Comments: Values from memory since didnt have open Operator: Steve Oncley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 7/31/96 Time start:~18:00 Time finish: NO cylinder pressure: 475 NO regulator pressure: 28 NO flow control setting(should be 506): Y (read 246) Sample flow: 442 Reactor temperature: 30.7 Reactor pressure: 092 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage): Shelter temperature: 24 Comments: Operator: Steve Oncley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 8/1/96 Time start: 09:45 Time finish: NO cylinder pressure: 460 NO regulator pressure: 28 NO flow control setting(should be 506): Y (read 2460 Sample flow: 442 Reactor temperature: 31.1 Reactor pressure: 093 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage): Shelter temperature: 24.4 Comments: Operator: Steve Oncley ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 8/2/96 Time start:11:56 Time finish: NO cylinder pressure: 460 psi NO regulator pressure:27.5 psi NO flow control setting(should be 506):506 (read 246) Sample flow: 441 Reactor temperature: 31.6 Reactor pressure:093 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage): Shelter temperature:26.9 after being open for 5 mins Comments: TECO sample flow A 1.05, flow B 0.95 Operator: Tony Delany ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 3 Aug 96 Time start:10:05 Note that the Kok Machine is running continually now Time finish: NO cylinder pressure:440 psi NO regulator pressure: 29 psi NO flow control setting(should be 506): Read 246 Sample flow:Reads 443 Reactor temperature: 31.5 Reactor pressure: 93 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y 55 ppbv PMT dark current (voltage): Shelter temperature: 24.1 Comments: Operator: Tony Delany ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 4 Aug 96 Time start:11:35 Time finish: NO cylinder pressure:420 psi NO regulator pressure: 28 psi NO flow control setting(should be 506): reads 246 Sample flow: 443 Reactor temperature: 31.5 Reactor pressure:93 TECO ozone sensor, on?: Y ,pump on?: y ,P/T button in?: Y 79,81 PMT dark current (voltage): Shelter temperature: 24.4 Comments: Operator: Tony Delany ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 5 Aug 96 Time start:11:00 local time Time finish: NO cylinder pressure: 420 psi NO regulator pressure: 28 psi1 NO flow control setting(should be 506): read 246 Sample flow: 443 Reactor temperature: 30.1 Reactor pressure:93 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?: Y PMT dark current (voltage): Shelter temperature: 20.8 Comments: The system is running continuously. There appears to be noise problems with approx 15 minute periodicity in the daytime and 1 hr periodicity at nighttime.. On this visit the TECO was on an excusion 104,..160, 180, 171,191,182,201,194 199,.... Operator: Tony Delany ----------------------------------------------------------------------------- ~ ------------------------------------------------------------------------- Date 6 Aug 96, Tues, Time start:10:20 Time finish: NO cylinder pressure: 395 NO regulator pressure: 29 NO flow control setting(should be 506): read 246 Sample flow:434 Reactor temperature:43.1 degreec Reactor pressure: 93 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y 50,48,48,50,.. PMT dark current (voltage): Shelter temperature:36.2 when first opened Comments:On the evening of 5 Aug the TECO was switched off and then back on. This caused the TECO to become rational again. The air conditioner was switched off . This removed the spiking and ramping from the TECO and the Kok machine data. This morning the door was removed from the front of the shelter and only the fan of the air conditioner was activated. Operator:Tony Delany ----------------------------------------------------------------------------- ~ -------------------------------------------------------------------------------- Date:7 Aug, Wednesday Time start:10:50 Time finish: NO cylinder pressure: 400 psi NO regulator pressure:28 psi NO flow control setting(should be 506): 246 Sample flow:432 Reactor temperature:41.9 Reactor pressure:93 TECO ozone sensor, on?: Y ,pump on?: Y ,P/T button in?:Y 54,58,58,57,... PMT dark current (voltage): Shelter temperature:35.5 Comments:At the evening visit at 1800 the door was reinstalled on the shelter in case of rain during the night. The door was removed for the daytime operation of the system at 10:55 Operator:Tony Delany ------------------------------------------------------------------------- Date:August 8 Time start:15:15 (GMT) Time finish: NO cylinder pressure:385 NO regulator pressure:28 NO flow control setting(should be 506):246 Sample flow:437 Reactor temperature:40.0 Reactor pressure:92 TECO ozone sensor, on?:y ,pump on?:y ,P/T button in?:y, 43,44,42 PMT dark current (voltage): Shelter temperature:33.4 Comments:removed door for daytime Operator:kurt knudson ------------------------------------------------------------------------- Date:August 9, 1996 Time start:14:06 GMT Time finish:14:16 NO cylinder pressure:380 NO regulator pressure:29 NO flow control setting(should be 506):246 Sample flow:441 Reactor temperature:32.8 Reactor pressure:93 TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 30,28,29 PMT dark current (voltage): Shelter temperature:27.5 Comments:removed door for daytime Operator:kk ------------------------------------------------------------------------- Date:August 10, 1996 Time start:13:44 GMT Time finish:13:55 NO cylinder pressure:350 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:441 Reactor temperature:30.8 Reactor pressure:94 TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 28,29,28,29 PMT dark current (voltage): Shelter temperature:25.0 Comments:removed shelter door for daytime operation Operator:kk ------------------------------------------------------------------------- Date:August 11, 1996 Time start:15:00 GMT Time finish:15:19 NO cylinder pressure:340 NO regulator pressure:29 NO flow control setting(should be 506):246 Sample flow:439 Reactor temperature:33.6 Reactor pressure:93 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 20,23,24,24,25 PMT dark current (voltage): Shelter temperature:26.8 Comments:removed door for daytime operation Operator:kk ------------------------------------------------------------------------- Date:August 12, 1996 Time start:14:51 Time finish:14:59 NO cylinder pressure:330 NO regulator pressure:29 NO flow control setting(should be 506):246 Sample flow:432 Reactor temperature:35.6 Reactor pressure:93 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?: y, 52,50,52,49,52 PMT dark current (voltage): Shelter temperature:29.7 Comments:removed door for daytime, dry ice chamber was almost completely empty Operator:kk ------------------------------------------------------------------------- Date:August 13, 1996 Time start:13:48 Time finish:14:09 NO cylinder pressure:315 NO regulator pressure:29 NO flow control setting(should be 506):246 Sample flow:435 Reactor temperature:32.1 Reactor pressure:93 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 35,33,33,33 PMT dark current (voltage): Shelter temperature:26.9 Comments:removed door for daytime Operator:kk ----------------------------------------------------------------------------- Date:August 14, 1996 Time start:13:30 Z Time finish:13:41 NO cylinder pressure:300 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:437 Reactor temperature:31.4 Reactor pressure:93 TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 30,32,333,33,32 PMT dark current (voltage): Shelter temperature:26.1 Comments:removed door for daytime Operator:kk ------------------------------------------------------------------------------- Date:August 15, 1996 Time start:13:46 GMT Time finish:13:56 NO cylinder pressure:290 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:434 Reactor temperature:33.6 Reactor pressure:93 TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 25,26,26,26 PMT dark current (voltage): Shelter temperature:27.8 Comments:removed door for daytime Operator:kk -------------------------------------------------------------------------------- Date:August 16, 1996 Time start:13:37 GMT Time finish:13:47 NO cylinder pressure:270 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:438 Reactor temperature:30.3 Reactor pressure:93 TECO ozone sensor, on?:y ,pump on?:y ,P/T button in?:y, 22,23,21,24 PMT dark current (voltage): Shelter temperature:24.8 Comments:removed door for daytime Operator:kk -------------------------------------------------------------------------------- Date:August 17 1996 Time start:13:59 Time finish: NO cylinder pressure:0 NO regulator pressure:0 NO flow control setting(should be 506): Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 23,24 PMT dark current (voltage): Shelter temperature: Comments:turned fast ozone off due to rain, Teco is looking OK Operator:kk -------------------------------------------------------------------------------- Date:18 August, 1996 Time start:still raining outside, unit not turned on Time finish: NO cylinder pressure: NO regulator pressure: NO flow control setting(should be 506): Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments:still raining, unit not turned on Operator:kk ------------------------------------------------------------------------- Date:August 19, 1996 Time start:13:55 GMT Time finish:14:07 NO cylinder pressure:260 NO regulator pressure:32 NO flow control setting(should be 506):248 Sample flow:438 Reactor temperature:28.1 Reactor pressure:104,94 TECO ozone sensor, on?:y ,pump on?: y ,P/T button in?:y, 39,37,37,35 PMT dark current (voltage):98.8 mv Shelter temperature:25.6 Comments:restarted unit, opened door for daytime Operator:kk --------------------------------------------------------------- Date:August 20, 1996 Time start:13:41 GMT Time finish:13:52 NO cylinder pressure:250 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:432 Reactor temperature:36.0 Reactor pressure:91 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 55,56,48,49,55,56 PMT dark current (voltage): Shelter temperature:30.2 Comments:removed door for daytime Operator:kk ------------------------------------------------------------------- Date:August 21, 1996 Time start:14:08 Time finish:14:18 NO cylinder pressure:240 NO regulator pressure:31 NO flow control setting(should be 506):246 Sample flow:428 Reactor temperature:36.4 Reactor pressure:92 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 40,48,46,41,43 PMT dark current (voltage): Shelter temperature:30.6 Comments:removed door for daytime, chart recorder almost out of paper Operator:kk ------------------------------------------------------------------- Date:August 22, 1996 Time start:14:30 GMT Time finish:14:40 NO cylinder pressure:220 NO regulator pressure:30 NO flow control setting(should be 506):246 Sample flow:425 Reactor temperature:37.0 Reactor pressure:91 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 51,52,52,51 PMT dark current (voltage): Shelter temperature:31.6 Comments:removed door for last day of operation, will start system purge this evening Operator:kk ------------------------------------------------------------------- Date:August 23, 1996 Time start:19:00 Time finish: NO cylinder pressure:off NO regulator pressure:0, purged NO flow control setting(should be 506):246 Sample flow:427 Reactor temperature:36.1 Reactor pressure:91 TECO ozone sensor, on?: y ,pump on?: y ,P/T button in?:y, 30,27,29 PMT dark current (voltage): Shelter temperature:30.3 Comments:turned off NO at 22:25 lastr evening, started the purge process Operator:kk -------------------------------------------------------------------
- 401: OZONE, Site 1, Fri 02-Aug-1996 22:33:19 GMT, TEMPLATE for Fast-Ozone Checklist
TEMPLATE for fast ozone checklist To make more copies see logbook 323 ---------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: ----------------------------------------------------------------------------- ----------------------------------------------------------------------------- Copy this information into LOGBOOK 322 ------------------------------------------------------------------------- Date Time start or time of inspection when in continuous running: Time finish: NO cylinder pressure: NO regulator pressure: NO flow (setting 506)read: Sample flow: Reactor temperature: Reactor pressure: TECO ozone sensor, on?: ,pump on?: ,P/T button in?: PMT dark current (voltage): Shelter temperature: Comments: Operator: -----------------------------------------------------------------------------
- 402: VISIT_LOG, Site 1, Sat 3-Aug-1996 16:10 GMT, No good reason
Site Visitation Log Entry ========================= Tech: MM Weather: sunny Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: tested A/D software glitch by unplugging sonic for a couple minutes to see if a/d data would come back
- 406: OZONE, Site 1, Sat 03-Aug-1996 18:04:55 GMT, Installation of Surface Effect Chemiluminescense Ozone Detector, SECLOD
On Wed, 31 Jul 96 the SECLOD was installed at PAM 1. The sensor was strapped to the sonic boom just behind the level of the Krypton hydrometer. The cables were strung and because of the lengths of the cables the power supply had to be strapped to the tower upright. The sensor output was very very low but it was left overnight to precondition. It was realized that the cables were attached backwards but the sensor could not by fixed until the evening of Thurs 1 Aug as an intensive observation period was occuring. On the morning of Fri 2 Aug the SECLOD signal was healthy and compared in structure to the Kok machine fast ozone sensor. SECLOD response fell off at 1 Hz and the Kok machine exhibited white noise commencing at several Hz.
- 407: LOG, Site 1, Sat 03-Aug-1996 18:17:36 GMT, PAM 1 mast lowering
The PAM mast was lowered for an hour on Wed 31 Jul 96 to replace the propvane and install the SECLOD ozone sensor. The PAM mast was lowered for a half hour at 1700 on Friday 1 Aug 96 to recable the SECLOD.
- 409: EVE, Site 1, Sat 03-Aug-1996 19:10:38 GMT, A/D problem and fast ozone data collection
The A/D problem on EVE is still not solved. The problem occurs on a heavily loaded system (station 1 with the Ozone). Current incantation results in the loss of the fast O3 data stream. Once the O3 data is gone, the data collection must be restarted to get it back. On the hardware side, an anti-aliasing filter is needed for better A/D covar data. W:O3 is ok, but O3:O3 data shows noise from the fast ozone sensor. Station 1 visit this morning to try and determine cause of A/D problem. Unplugged ATI for a few minutes to no avail.
- 414: VISIT_LOG, Site 1, Sun 4-Aug-1996 18:35 GMT, Routine
Site Visitation Log Entry ========================= Tech: MM Weather: breezy, harzy Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: got data from jd212--217 also
- 417: OZONE, Site 1, Mon 05-Aug-1996 15:26:25 GMT, Air conditioner? interference
Something is generating interference with the TECO at station 1. It is possible that the airconditioner in the chem-shelter is the culprit. It is possible that rather than the airconditioner it is the reaction chamber heater as the same periodicity appears in the Kok housekeeping output. The Kok ozone signal does not show a strong indication of intreference.. Whatever is causing the interference cycles during the day at ~ 4 hr-1 during the night at ~ 1 hr-1- 420: OZONE, Site 1, Mon 05-Aug-1996 22:49:18 GMT, Cycled power on TECO/AC off
At 1730 local time refilled dry ice, cycled power on TECO and switched off air conditioner:wq
- 421: HYGRO, Site 1, Mon 05-Aug-1996 22:50:56 GMT, TRH filter cleaned.
At 1730 local powered down TRH at station 1 and cleaned and inspected housing. Restarted.
- 422: HYGRO, Site 1, Tue 06-Aug-1996 15:13:06 GMT, Trh without filter is worse
- Previous - Next - Index
Graphics file: Two day plot of all temps 
The experiment with the Trh having the filter off only caused the temperature difference to be worse. Last night the offset was about 8 degC. Worse than the previous value of 5 degC.
- 424: OZONE, Site 1, Tue 06-Aug-1996 15:47:54 GMT, Ozone shelter airconditioning
The ozone system was operated throughout the night without the air conditioner. All the data traces improved and there was no spiking nor ramping on TECO Kok ozone Kok sample Kok NO Kok T Kok P. At 10:20 6 Aug the shelter door was removed and only the fan of the air conditioner was switched on.
- 425: VISIT_LOG, Site 1, Tue 6-Aug-1996 23:24 GMT, T-RH problem
Site Visitation Log Entry ========================= Tech: MM Weather: Set Clock: N Trh IC: N Baro IC: Y Rain IC: N Coments: changed trh 50y probe. old was 15 new is 12. Changed cals also put new EPROM in EVE and rebooted.
- 426: HYGRO, Site 1, Wed 07-Aug-1996 13:44:12 GMT, Fixed Trh at station 1
Swapped the 50Y probe in the Trh sensor. Old unit was #15, new was #12. Put in new calibration values for probe. Replaced dessicant. Temp values rose and came back in line with other sensors at night.
- 429: VISIT_LOG, Site 1, Wed 7-Aug-1996 21:30 GMT, No good reason
Site Visitation Log Entry ========================= Tech: MM Weather: front coming in fast Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: changed to EPROM2 which might fix A/D errors...maybe
- 431: OZONE, Site 1, Thu 08-Aug-1996 19:01:12 GMT, Modified SECLOD with Al foil
At 13:45 the PAM 1 mast was lowered and Al foil was taped over the two transluscent covers of the SECLOD housing. In addition a small foil cap was taped over the inlet and the foil was punched through and smoothed using a pencil. Hopefully this will reduce the light leaks.
- 432: OZONE, Site 1, Thu 08-Aug-1996 21:22:54 GMT, SECLOD bugs
Observation of the X-strip display of the SECLOD showed that occasionally large negative excursion occured. These excursions were possibly due to the inhalation of insects. There very well could have correlation of insects with vertical air motion. A good example of such an excursion occured at yday=221,17:55 and 17:56
- 435: VISIT_LOG, Site 1, Fri 9-Aug-1996 16:32 GMT, Routine
Site Visitation Log Entry ========================= Tech: MM Weather: cool breezy Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: got jd 217-222
- 440: OZONE, Site 1, Sun 11-Aug-1996 21:22:30 GMT, SECLOD high voltage increased to -1000 volts
the high voltage of SECLOD was increased to -1000 volts per Tony Delany today at 19:00 (was at -901 volts). the al. foil was replaced also.
- 444: OZONE, Site 1, Mon 12-Aug-1996 16:46:15 GMT, seclod dead
the seclod ozone sensor died at the time i was increasing the high voltage to 1000 volts yesterday. an attempt to revive the sensor will be made tommorrow morning so as to not disturb the flux measurements during the day
- 445: OZONE, Site 1, Tue 13-Aug-1996 14:20:09 GMT, SECLOD LIVES
the seclod ozone sensor was repaired this morning - a broken pin connection was repaired, and the high voltage was checked again(-1000 v). the unit was rewrapped in al foil for light leak protection.
- 447: VISIT_LOG, Site 1, Tue 13-Aug-1996 22:24 GMT, No good reason
Site Visitation Log Entry ========================= Tech: MM Weather: Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: changed eprom for EVE. However, looks like the new
- 448: EVE, Site 1, Wed 14-Aug-1996 15:16:58 GMT, Station visit to PAM 1, swap EPROM
Went to station 1 last night about 5:30 CDT. Installed new EPROM from Boulder. This morning, the fast O3 is still going, but the A/D power data is fouled up. Arrrrrrrgh.
- 451: VISIT_LOG, Site 1, Wed 14-Aug-1996 17:22 GMT, Routine
Site Visitation Log Entry ========================= Tech: MM Weather: south winds Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: downloaded jd 222-227. reset data collection due to power A/d being fouled up
- 456: OZONE, Site 1, Fri 16-Aug-1996 19:03:45 GMT, Kok Ozone detector noise.
The noise level of the Kok ozone detector has increased since last week when I left for Oak Ridge. I judge that the increse is not too significant and that the risk associated with removing and drying the PMT is probably too great. The signal is still good. The SECL detector is also showing more irregularity but I will leave it without further adjustment.
- 458: OZONE, Site 1, Sat 17-Aug-1996 14:52:48 GMT, fast ozone play suspended due to rain
fast ozone unit was turned off due to rain at 13:59
- 459: OZONE, Site 1, Sat 17-Aug-1996 14:54:40 GMT, Teco ozone sensor bad yesterday evening, OK now
the teco ozone sensor was cycling wildy last evening (fri aug 16, 22:00 gmt) power was reset 3 times before sensor settled down. aprox. 45 min.of spastic behavior. Unit looked OK this morning at 14:00.
- 466: VISIT_LOG, Site 1, Mon 19-Aug-1996 19:11 GMT, Routine
Site Visitation Log Entry ========================= Tech: MM Weather: sunny humid Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments: soil sample, downloaded jd 227-232, did assman IC, got crop height
- 476: HYGRO, Site 1, Thu 22-Aug-1996 16:32:36 GMT, bph at sta 1 moved to trh level
the bph was moved to the trh level at 16:20 today
- 478: LOG, Site 1, Fri 23-Aug-1996 14:09:55 GMT, pam station 1 going down
pam sta 1 will be shut off soon and the station will be torn down either today or saturday depending on availablility of help and state of attitudes.
- 481: VISIT_LOG, Site 1, Fri 23-Aug-1996 18:43 GMT, Teardown
Site Visitation Log Entry ========================= Tech: MM Weather: hot/humid Set Clock: N Trh IC: N Baro IC: N Rain IC: N Coments:
- 486: OZONE, Site 1, Wed 11-Sep-1996 20:25:23 GMT, Calibration and offsets for Kokod fast ozone detector
During the first two weeks of September the data from: Tecod, the ThermoElectron ozone detector Kokod, the gas-phase chemiluminescese ozone detector were examined. Tecod was operating continuously from <22 Jul 96 until 22 Aug 96. Until 5 Aug 96 the airconditioner temperature transients induced periodic noise spikes. After that date the air conditioner was disabled. Kokod was activated 22 Jul 96 and operated until 22 Aug 96 The first few days were not reliable nor continuous and thegood data set begins 15:00 GMT 25 Jul 96. The combined Tecod and Kokod data was examined using "fun.ozone.cal.plot()" to select periods ofgood and bad data. The data was then processed using "fun.ozone.scatter.plot()" to generate offset and calibration factors for good data periods. NB all dates and time are based on GMT Date Time start Time finish Offset Calibration factor GMT GMT ppbv ppbv/volt 22 Jul 96 23 Jul 96 24 Jul 96 25 Jul 96 15:00 24:00 -0.992 27.5 26 Jul 96 14:00 20:00 -0.113 28.5 27 Jul 96 15:00 23:00 5.53 24.6 28 Jul 96 14:00 23:00 13.5 22.8 29 Jul 96 14:00 24:00 0.152 29.5 30 Jul 96 00:00 24:00 3.31 27.4 31 Jul 96 00:00 24:00 2.61 27.4 01 Aug 96 00:00 24:00 3.06 27.5 02 Aug 96 00:00 13:00 3.52 27.4 17:00 24:00 -3.26 31.4 03 Aug 96 00:00 16:30 3.98 29.7 19:00 24:00 3.98 29.7 04 Aug 96 00:00 24:00 3.36 33.4 05 Aug 96 00:00 13:00 12.4 28.3 06 Aug 96 00:00 24:00 5.66 25.7 07 Aug 96 00:00 24:00 7.99 26.8 08 Aug 96 00:00 24:00 7.23 24.8 09 Aug 96 00:00 24:00 3.36 26.0 10 Aug 96 00:00 24:00 3.08 27.7 11 Aug 96 00:00 24:00 2.93 30.0 12 Aug 96 00:00 24:00 8.86 27.6 13 Aug 96 00:00 24:00 8.3 26.6 14 Aug 96 00:00 24:00 6.53 27.7 15 Aug 96 00:00 14:00 8.37 27.0 14:00 24:00 3.24 26.8 16 Aug 96 00:00 22:00 3.35 27.7 17 Aug 96 00:00 14:00 4.71 29.8 18 Aug 96 ~ ~ ~ ~ 19 Aug 96 14:00 00:00 12.2 26.1 20 Aug 96 00:00 24:00 9.97 29.8 21 Aug 96 00:00 24:00 8.32 28.8 22 Aug 96 00:00 16:00 9.11 28.2 A continuous good dta period of 9 days without a break was lumped 06 Aug 96 00:00 15 Aug 96 00:00 5.14 27.7