All variables are floats except counts_sync and counts_sonic, which are integer. The missing data value (known as the _FillValue attribute) is always 1.e+37 for float variables. Therefore, if a station is not reporting a given variable, all values should be 1.e+37.
The variable names shown below are the value of the "short_name" attribute. Since NetCDF variable names should not contain periods or quote marks, the actual NetCDF variable name will be the short_name, with underscores substituted for periods and quotes.
For more information on variable names, see the ISFF Variable Name Convention .
The OKMN derivations are the operations performed on the Oklahoma Mesonet
NetCDF variables before inserting them into the merged Netcdf files. Calibration
parameters are shown in italics.
Variable
short_name |
OKMN derivation | units | stations | description |
P | pres + 700 | mb | 1-9,11-19 | barometric pressure |
Tslow | tair | degC | 11-19 | slow response air temp at 1.5m |
T.1.5m | ta15 | degC | 1-9,11-19 | air temp at 1.5m |
T.9m | ta9m | degC | 11-19 | air temp at 9m |
RH | relh | % | 1-9,11-19 | relative humidity |
U.10m | -wvec*sin(wdir) | m/s | 1-9,11-19 | 10 m wind |
V.10m | -wvec*cos(wdir) | m/s | 1-9,11-19 | 10m wind |
Spdmax.10m | wmax | m/s | 1-9,11-19 | 10m max wind speed |
Spd.2m | ws2m | m/s | 11-19 | 2m wind speed, RMY cup |
Spd.9m | ws9m | m/s | 11-19 | 9m wind speed, RMY cup |
Rpile.in | cglwin | W/m^2 | supersites | CNR1 incoming longwave |
Tcase.in | ctempt | degC | supersites | CNR1 top body temp |
Rpile.out | cglwou | W/m^2 | supersites | CNR1 outgoing longwave |
Tcase.out | ctempb | degC | supersites | CNR1 bottom body temp |
Rsw.in | cmswin | W/m^2 | supersites | CNR1 incoming shortwave |
Rsw.out | cmswou | W/m^2 | supersites | CNR1 outgoing shortwave |
Rnet | rnet/70*1000/fcal*o+b
+0.02*((Spd.2m>5)-5) |
W/m^2 | 11-19 | net radiation, NR-Lite |
rainr | (rtip[i]-rtip[i-1])/300*3600*.254 | mm/hr | 11-19 | rain rate |
Gsoil.5cm | hf5/40*cal * thermal conductivity ratio | W/m^2 | 11-19 | soil heat flux at 5cm (average of a & b) |
Tsoil.5cm | m0+m1*prt+m2*prt^2 | degC | 11-19 | soil temp at 5 cm (average of a & b) |
G | Gsoil.5cm + storage(st05,ft05,Tsoil.5cm) | W/m^2 | 11-19 | surface heat flux |
u | csatx | m/s | 1-9,supersites | sonic mean u wind at 4.5m, in sonic coordinates
NCAR=ATI sonic, OKMN=CSAT3 |
v | csaty | m/s | 1-9,supersites | sonic mean v component |
w | csatz | m/s | 1-9,supersites | sonic mean w |
tc | avgson | degC | 1-9,supersites | virtual temperature |
h2o | (avglnk/krycal)+45 | g/m^3 | 1-9,supersites | water vapor density from Krypton sensor |
u'u' | varwsx | (m/s)^2 | 1-9,supersites | sonic u variance |
u'v' | covxuy | (m/s)^2 | 1-9,supersites | sonic u v covariance |
u'w' | covzux | (m/s)^2 | 1-9,supersites | sonic u w covariance |
u'tc' | covxst | m/s degC | 1-9,supersites | sonic u tc |
u'h2o' | covxln/krycal | m/s g/m^3 | 1-9,supersites | |
v'v' | varwsy | (m/s)^2 | 1-9,supersites | sonic v variance |
v'w' | covzuy | (m/s)^2 | 1-9,supersites | |
v'tc' | covyst | m/s degC | 1-9,supersites | |
v'h2o' | covyln/krycal | m/s g/m^3 | 1-9,supersites | |
w'w' | varwsz | (m/s)^2 | 1-9,supersites | sonic w variance |
w'tc' | covzst | m/s degC | 1-9,supersites | |
w'h2o' | covzln/krycal | m/s g/m^3 | 1-9,supersites | |
tc'tc' | varson | degC^2 | 1-9,supersites | sonic tc variance |
h2o'h2o' | varlnk/(krycal^2) | (g/m^3)^2 | 1-9,supersites | water vapor density variance |
counts_sync | nmccov | count | 1-9,supersites | number of points in eddy-corr statistics |
usamples | count | 1-9 | # of good 200Hz pulse samples
in 10Hz sonic sample (20=good) |
|
vsamples | count | 1-9 | ||
wsamples | count | 1-9 | ||
counts_sonic | count | 1-9 | number of sonic samples | |
freq.sonic | Hz | 1-9 | sonic reporting frequency | |
uflag | count | 1-9 | number of detected spikes in u | |
vflag | count | 1-9 | number of detected spikes in v | |
wflag | count | 1-9 | number of detected spikes in w | |
tcflag | count | 1-9 | number of detected spikes in tc | |
chksumOK | none | 1-6 | 1/0=GOES message passes/fails checksum test | |
Tbox.eve | degC | 1-6 | electronics temp | |
vdc.batt | V | 1-6 | battery voltage | |
i.batt | amp | 1-6 | charging current | |
i.load | amp | 1-6 | load current | |
Tbatt | degC | 1-6 | battery case temp | |
ClockError.GOES | sec | 1-6 | actual-expected packet receipt time
(should be < 10) |
|
Signal.GOES | dbm | 1-6 | Signal strength received at GOES | |
FreqOffset.GOES | Hz | 1-6 | Offset from GOES center freq | |
Channel.GOES | 1-6 | Channel number (+=GOES East) | ||
MsgStatus.GOES | 1-6 | 0=OK |