Variable Names at ER01, ER05, ER09, and ER13 from Bill Kustas. 


SITE ID  (SGP identified location)
DOY      (Day of Year)
CST      (time in decimal hours CST centered on the period so
         data averaged between 1100 and 1130 is shown as 11.25)
Rnet     (net radiation) [W m^-2] to nearest 1
LE       (latent heat flux--FOR EDDY CORR: must be Webb Pearman
         corrected) [W m^-2] to nearest 1
H        (sensible heat flux--FOR EDDY CORR:  use the measured H
         using the sonic thermocouple (H_TC) or
         H_Ts - .07*LEuncorrected where H_Ts is the measured H
         using the sonic temperature) [W m^-2] to nearest 1
G        (soil heat flux) [W m^-2] to nearest 1
CO2      (carbon dioxide flux) [umol m^-2 s^-1] to nearest 0.1
u*       (friction velocity) [m s^-1] to nearest .01
Uave     (windspeed--FOR EDDY CORR: = [U_x^2 + U_y^2]^(1/2) )
         [m s^-1] to nearest .1
Udir     (wind direction) [degrees] to nearest 1
Tair     (air temperature--FOR EDDY CORR: thermocouple temperature
         or use
         Tair = Ts * [1 + 0.51/(1 + (1/epsilon)*(p/e-1))]^-1
         where Ts is sonic temperature, epsilon is 0.622, p is
         pressure (standard at approximate elevation is good
         enough) and e is vapor pressure) [deg Celsius]
         to nearest .1
         THERE IS ONLY ONE T COLUMN-->thermocouple OR corrected
         sonic temperature
eair     (vapor pressure) [kiloPascals] to nearest .01
stdw     (standard deviation of vertical velocity) [m s^-1]
         to nearest .01
stdU     (standard deviation of horizontal windspeed--FOR EDDY
         CORR:  = [(stdU_x)^2 + (stdU_y)^2]^(1/2) [m s^-1]
         to nearest .01
stdT     (standard deviation of air temperature--FOR EDDY CORR:
         use std of thermocouple or
         stdT = stdTs - 0.00025*LEuncorrected where stdTs is
         standard deviation of sonic temperature) [deg Celsius]
         to nearest .01
stde     (standard deviation of vapor pressure) [kiloPascals]
         to nearest .01

Any missing values should be shown as -999.