National Center for Atmospheric Research
EOL Integrated Surface Flux Facility

Variables in HVAMS03 5-Minute Data Set

The following variables were sampled during this project.

Most variables will have a "time" dimension, indicating they are time-series variables. Variables with a "station" dimension were sampled at more than one station or site.

Variables with a "sample" dimension are available at a resolution of 1/sample times the resolution of the dataset. For example, in a file of 5 minute statistics, a sample dimension of 5 indicates that the variable is available at 1 minute resolution.

For more information on variable names, see the ISFF Variable Name Convention .

Variables that were slowly sampled (usually once per second, or less) start with an upper case character (P, RH, T, etc). Lower case is used for more rapidly sampled variables, typically those used in eddy correlation, like u,v,w,tc,h2o, etc.

Higher moments are represented by products of variables, separated by single quotes. For example, u'v' is the covariance of u and v.

To save space, third and fourth moments of eddy correlation variables aren't listed in the table, but are available in the datasets.

Standard NetCDF variable names should only contain alphanumeric characters and underscores. Therefore, in Netcdf files the actual variable names will be the variable name shown here, with underscores substituted for periods and quotes. The variable name shown in this table will be saved as the "short_name" attribute of the Netcdf variable.

Variable Name Description Units Dimension Sensor Notes
base_timeSeconds since
1970 Jan 1 00:00 GMT
seconds   
timeSeconds since base_timesecondstime  
Channel.GOESGOES Channel Number (-=West, +=East) time x station  
chksumOK.FASTDATA  time x station  
chksumOK.LOGR_DATA  time x station  
chksumOK.MET_DATA  time x station  
chksumOK.STAT_NOTGOES  time x station  
ClockError.GOESActual-expected packet receipt timesectime x station  
CO2mrDX6100 CO2ppmtime x station  
counts.adc cnttime x station  
counts.logr cnttime x station  
counts.rmy cnttime x station  
counts.trh cnttime x station  
counts.vais cnttime x station  
diag.sonicCSAT3 diag flagcnttime x station  
err.baroBarometer errorscnttime x station  
err.loggerLogger errorscnttime x station  
err.slowADSlow A/D errorscnttime x station  
err.softwC_errorscnttime x station  
err.sonicSonic errorscnttime x station  
err.trhTrh errorscnttime x station  
err.windRmy errorscnttime x station  
freq.co2 cnttime x station  
FreqOffset.GOESOffset from assigned GOES center frequencyHztime x station  
freq.sonicsonic w freqHztime x station  
GsoilHeat Flux at depthW/m^2time x station  
Ichargecharging currentAmpstime x station  
Iloadload currentAmpstime x station  
kh2o'kh2o' (gm/m^3)^2time x station  
kh2okrypton moist. densitygm/m^3time x station  
kh2oVkrypton mVmVtime x station  
MsgStatus.GOES0=GOOD time x station  
NmeasDX6100 sigoutcntstime x station  
NrefDX6100 refoutcntstime x station  
O3mr.s3 ppbVtime x station  
O3mrOzone concentrationppbtime x station  
PPmicrobarographmVtime x station  
Ppressurembtime x station  
QsoilCS615 soil moisture%voltime x station  
QtsoilCS615 period measurementmsectime x station  
rainaETI gauge.01intime x station  
rainrTipping bucket.01in/5mintime x station  
RHRel. Humidity%time x station  
Rlw.inIncoming Pyrg ThermopileW/m^2time x station  
Rlw.outOutgoing Pyrg ThermopileW/m^2time x station  
RnetREBs Net radiometerW/m^2time x station  
Rpile.inIncoming Pyrg ThermopileW/m^2time x station  
Rpile.outOutgoing Pyrg ThermopileW/m^2time x station  
Rsw.in.licorLicor LI200saW/m^2time x station  
Rsw.inIncoming Shortwave RadiationW/m^2time x station  
Rsw.outOutgoing Shortwave RadiationW/m^2time x station  
RDX6100 response time x station  
Signal.GOESReceived GOES signal strengthdbmtime x station  
Spdmax.10mprop vanem/stime x station  
TambDX6100 temp.0.1 degKtime x station  
Tau63TP01 time differencesectime x station  
Tbattbattery tempdegCtime x station  
Tbox.eveBox TempdegCtime x station  
Tcase.inIncoming Pyrg Case TempdegCtime x station  
Tcase.outOutgoing Pyrg Case TempdegCtime x station  
tc'tc'tc variancedegC^2time x station  
tcsonic virtual temperaturedegCtime x station  
Tdome.inIncoming Pyrg Dome TempdegCtime x station  
Tdome.outOutgoing Pyrg Dome TempdegCtime x station  
ToptoDX6100 opttemp.cntstime x station  
T.s1Air TempdegCtime  
T.s2Air TempdegCtime  
T.s3Air TempdegCtime  
T.s4Air TempdegCtime  
T.s5Air TempdegCtime  
T.s6Air TempdegCtime  
T.s7Air TempdegCtime  
T.s8Air TempdegCtime  
T.s9Air TempdegCtime  
TsfcEverest 4000.4GL surface tempdegCtime x station  
TsoilSoil TempdegCtime x station  
TtemperaturedegCtime x station  
U.10mprop vanem/stime x station  
u'kh2o' m/s gm/m^3time x station  
u'tc'u tc covariancem/s degCtime x station  
usonic u windm/stime x station  
u'u'u variancem^2/s^2time x station  
u'v'u v covariancem^2/s^2time x station  
u'w'u w covariancem^2/s^2time x station  
V.10mprop vanem/stime x station  
Vbattbattery voltageVDCtime x station  
VcoolDX6100 Vcoolercnttime x station  
VheatTP01 heater vdcvdctime x station  
v'kh2o' m/s gm/m^3time x station  
VpileTP01 transducer vdcvdctime x station  
v'tc'v tc covariancem/s degCtime x station  
vsonic v windm/stime x station  
v'v'v variancem^2/s^2time x station  
v'w'v w covariancem^2/s^2time x station  
watchdog cnttime x station  
w'kh2o' m/s gm/m^3time x station  
w'tc'w tc covariancem/s degCtime x station  
wsonic w windm/stime x station  
w'w'w variancem^2/s^2time x station  


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© NCAR/Earth Observing Laboratory
This page was prepared by Steven Oncley, NCAR Research Technology Facility