DQRID : D991110.1
Start DateStart TimeEnd DateEnd Time
06/30/1999110309/17/19991303
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Subject:
SGP/MWR/B5 - Reprocess: wet window flag high
DataStreams:sgpqmemwrcolB5.c1, sgp5mwravgB5.c1, sgplssondeB5.c1
Description:
The dew blower heater failed causing the "wet_window" flag to be consistently set to "1".

Ignore this flag or edit it to equal "0" (except when "liq" is greater than 0.5 mm).

The following data streams could not be created due to the flagged wet window:
sgp5mwravgB5.c1 
sgplssondeB5.c1 
sgpqmemwrcolB5.c1
Suggestions: 
Measurements:sgp5mwravgB5.c1:
  • base time in epoch(base_time)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • lon(lon)
  • Time offset from base_time(time_offset)
  • North Latitude(lat)
  • Total water vapor along LOS path(vap)
  • -180.0 - +180.0(alt)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Standard deviation about the mean for the 31.4 GHz sky brightness temperature(tbsky31_sdev)
  • Fraction of data in averaging interval with water on Teflon window(water_flag_fraction)
  • Standard deviation about the mean for the total water vapor amount(vap_sdev)
  • Number of data points averaged for 23tbsky, 31tbsky, vap & liq(num_obs)
  • Averaged total liquid water along LOS path(liq)
more
sgplssondeB5.c1:
  • base time in epoch(base_time)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • Relative Humidity (hybrid-b grid)(rh)
  • Time offset from base_time(time_offset)
  • Dry Bulb Temperature(tdry)
  • lon(lon)
  • Retrieved pressure profile(pres)
more
sgpqmemwrcolB5.c1:
  • lon(lon)
  • Ensemble average for MWR vapor in window centered about balloon release(mean_vap_mwr)
  • Standard deviation for ensemble average for MWR liq(sd_liq_mwr)
  • Ensemble average for MWR 31.4 GHz sky brightness temperature in window centered
    upon current sample(mean_tbsky31_mwr)
  • Ensemble average for MWR 23.8 GHz sky brightness temperature in window centered
    upon current sample(mean_tbsky23_mwr)
  • denotes whether mean_liq_mwr was above LIQ_WATER_THRESHOLD or whether MWR IPM
    used the cloud model(likely_clouds)
  • Size of MWR ensemble for mean_tbsky23_mwr field(num_tbsky23_mwr)
  • Status of the Instrument Performance Model results(model_status_flag)
  • Size of MWR ensemble for mean_liq_mwr field(num_liq_mwr)
  • base time in epoch(base_time)
  • Integrated vapor column from sonde using a direct calculation (external from the
    IPM)(integ_vap_sonde_direct)
  • MWR IPM output for 23.8 GHz sky brightness temperature using sonde T,P,RH(model_tbsky23)
  • maximum height attained by the balloon in pressure units(max_height_sonde)
  • (model_tbsky31 - mean_tbsky31)/sd_tbsky31_mwr(sdev_tbsky31_away)
  • (model_tbsky23 - mean_tbsky23_mwr)/sd_tbsky23_mwr(sdev_tbsky23_away)
  • Ensemble average for MWR liquid in window centered about balloon release(mean_liq_mwr)
  • Integrated vapor column from sonde using MWR Instrument Performance Model (IPM)(integ_vap_sonde)
  • Standard deviation for ensemble average for MWR 23.8 GHz sky brightness
    temperature(sd_tbsky23_mwr)
  • Size of MWR ensemble for mean_ir_temp_mwr field(num_ir_temp_mwr)
  • MWR IPM output for atmospheric mean radiating temp using sonde T,P,RH(model_tmr31)
  • Standard deviation for ensemble average for MWR 31.4 GHz sky brightness tempera(sd_tbsky31_mwr)
  • Standard deviation of ensemble average for MWR vapor(sd_vap_mwr)
  • Sonde serial number(sonde_serial_number)
  • MWR IPM output for 31.4 GHz sky brightness temperature using sonde T,P,RH(model_tbsky31)
  • (integ_vap_sonde - mean_vap_mwr) /sd_vap_mwr(sdev_vap_away)
  • Standard deviation of ensemble average for MWR ir_temp(sdev_ir_temp_mwr)
  • Ensemble average for MWR IR Brightness Temperature in window centered about
    balloon release(mean_ir_temp_mwr)
  • Time offset from base_time(time_offset)
  • -180.0 - +180.0(alt)
  • MWR IPM output for atmospheric mean radiating temp using sonde T,P,RH(model_tmr23)
  • Size of MWR ensemble for mean_tbsky31_mwr field(num_tbsky31_mwr)
  • North Latitude(lat)
  • Size of MWR ensemble for mean_vap_mwr field(num_vap_mwr)
more

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