DQRID : D020717.46
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/12/2002031501/13/20022131Incorrect
01/17/2002091501/21/20020901Incorrect
02/09/2002011502/12/20020731Incorrect
12/04/2001000012/12/20011914Incorrect
02/20/2002164502/20/20021831Incorrect
more
Subject:
SGP/EBBR/E20 - Reprocess: Soil Heat Flow #2 Has a Negative Offset
DataStreams:sgp30ebbrE20.b1
Description:
Soil heat flow #2 measurements had a negative offset.  Negative values were too small and 
negative values occurred when positive values should have.  This can occur when there is 
a poor wire connection or a J-panel over-voltage protection device has failed.

Average soil heat flow, sensible heat flux, and latent heat flux were affected; these can 
be recalculated using the remaining good sets of soil sensors as follows:
   ave_shf = (g1 + g3 + g4 + g5)/4
   e = -(q + ave_shf)/(1 + bowen)
   h = -(q + e + ave_shf)
Suggestions: 
Measurements:sgp30ebbrE20.b1:
  • surface_soil_heat_flux_2
  • latent_heat_flux
  • surface_soil_heat_flux_avg
  • corr_soil_heat_flow_2
  • soil_heat_flow_2
  • sensible_heat_flux
more

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