DQRID : D960119.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
12/20/1995160001/16/19962030Incorrect
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Subject:
SGP/EBBR/E15 - Reprocess: Soil Temperature Probe Malfunction
DataStreams:sgp30ebbrE15.b1, sgp15ebbrE15.b1
Description:
Malfunction of soil temperature probe #3 at 157, Ringwood, OK resulted in
incorrect data values for 7 fields for the period of time listed above.  The
soil temperature value from probe #3 went offscale, resulting in a zero value
for the soil energy storage term calculated from that probe and thus no
contribution to the total soil heat flux for soils set 4 and the same for
average soil heat flux.  This led to incorrect sensible and latent heat
flux values.  The probe may have become disconnected during the 20 December
site operations preventative maintenance visit.  However, it also had
rodent chew damage and so was removed and replaced.

The fields that are incorrect are:

30 minute: ts3, ces3, g3, ave_shf, e, h

15 minute: rr_ts3.

Soil temperature probe #3 was replaced at 2030 GMT on 16 January 1996.
The old S/N was 95043, the new S/N is 93018.  Sensible and latent heat fluxes
can be recomputed by averaging the soil heat flux from the four sets of
functioning soil probes; use the following equations:

ave_shf = (g1 + g2 + g4 + g5)/4

e = -(q +ave_shf)/(1 + bowen)

h = e * bowen,

where g is total soil heat flow, q is net radiation, and bowen is Bowen
Ratio.
Suggestions: 
Measurements:sgp15ebbrE15.b1:
  • soil_temp_3_rr
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sgp30ebbrE15.b1:
  • surface_soil_heat_flux_avg
  • energy_storage_change_3
  • soil_temp_3
  • latent_heat_flux
  • sensible_heat_flux
  • surface_soil_heat_flux_3
more

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