DQRID : D930503.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/13/1993120107/13/19931202Incorrect
more
Subject:
SGP/EBBR/E13 - incorrect meteorological observations
DataStreams:sgp30ebbrE13.b1, sgp5ebbrE13.b1
Description:
EDITOR'S NOTE:  This DQR refers ti data collected by the EBBR at E13 prior
to the begin date of regular ARM data.  At that time, the data streams which
contain the EBBR.E13 data were named
      Dsgp15ebbr1.a0
      Dsgp30ebbr1.a1
      Dsgp5ebbr1.a0
These data are not readily available from the ARM archive, but can be 
made available by special request.  The actual time range of the problem
described here is 930417.1200-930422.1730.


Beginning at 1200 UTC on 17 April 1993, EBBR1, Central Facility, outputs
ramped to extreme values, some positive, some negative.  These outputs ended
their ramping approximately 3 hours later.  Comparison with SMOS data
indicate that no time averaged outputs from EBBR1 were consistent with the
SMOS after 1200 UTC.

It appears that the averaging instruction in the CR10 data logger had been
corrupted.  On 22 April site operations, at my request, tried to reenter
the software; this attempt was completely unsuccessful, indicating that the
CR10 probably had other problems as well.  EBBR1 was offline from 1730 UTC
on 22 April until 1400 UTC on 23 April, when a new CR10 was installed and the
software downloaded successfully.

Since a SDS utility for extracting real time data from the CF SMOS had not been
established, EBBR1 was being used for weather observations.  All EBBR1
measurements of meteorological quantities during the period above are
invalid.
Suggestions: 
Measurements:sgp5ebbrE13.b1:
  • wspd_arith_mean
  • temp_air_bottom
  • rh_top_fraction
  • net_radiation
  • temp_trh_top
  • temp_reference
  • vapor_pressure_top
  • vapor_pressure_bottom
  • time_offset
  • atmos_pressure
  • temp_air_top
  • lon
  • temp_trh_bottom
  • wdir_vec_mean
  • wdir_vec_std
  • alt
  • home_signal
  • wspd_vec_mean
  • lat
  • rh_bottom_fraction
  • base_time
more
sgp30ebbrE13.b1:
  • bowen_ratio
  • alt
  • temp_trh_top
  • home_signal_15
  • sensible_heat_flux
  • energy_storage_change_3
  • rh_top_fraction
  • energy_storage_change_2
  • energy_storage_change_1
  • temp_air_bottom
  • surface_soil_heat_flux_5
  • wspd_arith_mean
  • temp_reference
  • soil_moisture_3
  • soil_moisture_4
  • corr_soil_heat_flow_1
  • temp_air_top
  • soil_moisture_5
  • corr_soil_heat_flow_2
  • corr_soil_heat_flow_3
  • corr_soil_heat_flow_4
  • corr_soil_heat_flow_5
  • soil_moisture_1
  • soil_moisture_2
  • lon
  • surface_soil_heat_flux_avg
  • wdir_vec_mean
  • energy_storage_change_5
  • energy_storage_change_4
  • net_radiation
  • home_signal_30
  • wdir_vec_std
  • base_time
  • atmos_pressure
  • wspd_vec_mean
  • time_offset
  • rh_bottom_fraction
  • soil_heat_flow_2
  • soil_heat_flow_3
  • soil_heat_flow_4
  • soil_heat_flow_5
  • surface_soil_heat_flux_3
  • surface_soil_heat_flux_4
  • surface_soil_heat_flux_1
  • surface_soil_heat_flux_2
  • soil_heat_flow_1
  • soil_temp_5
  • soil_temp_4
  • lat
  • soil_temp_3
  • soil_heat_capacity_4
  • soil_temp_2
  • soil_heat_capacity_5
  • latent_heat_flux
  • soil_temp_1
  • soil_heat_capacity_2
  • soil_heat_capacity_3
  • vapor_pressure_bottom
  • temp_trh_bottom
  • vapor_pressure_top
  • soil_heat_capacity_1
more

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