DQRID : D040407.2
Start DateStart TimeEnd DateEnd Time
02/05/2004170004/15/20041530
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Subject:
SGP/EBBR/E19 - Reprocess: Incorrect Net Rad Calibration Coefficient
DataStreams:sgp30baebbrE19.c1, sgp30ebbrE19.b1, sgp5ebbrE19.b1
Description:
The net radiometer coefficient installed on 2/5/04 for nighttime (negative voltage 
calibration) was incorrect.

Negative net radiations during the subject period can be multiplied by
0.9419 to get corrected net radiation measurements.  The sensible (H)
and latent heat (LE) fluxes (which are very small at night anyway) can
be recalculated using the following equations (where B is Bowen ratio,
Rn is corrected net radiation, and G is soil heat flow):

LE = -(Rn + G)/(B + 1)

H = -(Rn + G + LE)
Suggestions: 
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Measurements:sgp30ebbrE19.b1:
  • Surface sensible heat flux(sensible_heat_flux)
  • Surface latent heat flux(latent_heat_flux)
  • Net radiation(net_radiation)
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sgp30baebbrE19.c1:
  • corrected sensible heat flux(h)
  • Aerodynamic Latent heat flux(ale)
  • Aerodynamic Sensible heat flux(ah)
  • specific humidity(q)
  • Latent heat flux(e)
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sgp5ebbrE19.b1:
  • Net radiation(net_radiation)
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