DQRID : D960119.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/28/1995000003/31/19962359Suspect
more
Subject:
SGP/EBBR/E4 - Soil Moisture Probes Offscale
DataStreams:sgp30ebbrE4.b1, sgp15ebbrE4.b1
Description:
During numerous periods within the days listed above, individual soil
moisture probes indicated high or offscale, on the dry side.  The
calibration of the probes in Plevna soil by REBS was inadequate to
provide reliable soil moisture data. 

The data should be carefully inspected before use: soil moistures
less than 3 should be considered incorrect; recalculation of ave_shf 
e, and h may be made using only the soil moisture sets with valid
soil moisture values.

Affected data values are (# represents probe number):

15 minute: rr_sm#
30 minute: sm#, c_shf#, cs#, ces#, g#, ave_shf, e, h

Sensible, latent, and soil heat fluxes can be recalculated using the soil
probe sets that provide correct data.  For example, if soil moisture 1 is
incorrect:

ave_shf = (g2 + g3 + g4 + g5)/4
e = -(q + ave_shf)/(1 +bowen)
h = -(e + ave_shf +q)
Suggestions: 
Measurements:sgp30ebbrE4.b1:
  • corr_soil_heat_flow_3
  • corr_soil_heat_flow_4
  • corr_soil_heat_flow_5
  • soil_moisture_2
  • soil_moisture_1
  • surface_soil_heat_flux_avg
  • surface_soil_heat_flux_5
  • surface_soil_heat_flux_3
  • surface_soil_heat_flux_4
  • surface_soil_heat_flux_1
  • corr_soil_heat_flow_1
  • corr_soil_heat_flow_2
  • surface_soil_heat_flux_2
  • energy_storage_change_3
  • soil_heat_capacity_4
  • soil_heat_capacity_5
  • energy_storage_change_2
  • soil_heat_capacity_2
  • energy_storage_change_1
  • soil_heat_capacity_3
  • energy_storage_change_5
  • energy_storage_change_4
  • latent_heat_flux
  • soil_moisture_4
  • soil_moisture_3
  • soil_moisture_5
  • soil_heat_capacity_1
  • sensible_heat_flux
more
sgp15ebbrE4.b1:
  • soil_moisture_2_r
  • soil_moisture_1_r
  • soil_moisture_4_r
  • soil_moisture_3_r
  • soil_moisture_5_r
more

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