DQRID : D020805.3
Start DateStart TimeEnd DateEnd Time
08/02/2002214408/04/20020213
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Subject:
SGP/MWR/B6 - Instrument replaced, calibration updating
DataStreams:sgpmwrlosB6.a0, sgpmwrlosB6.b1, sgpmwrlosB6.a1, sgp5mwravgB6.c1
Description:
Following replacement of the MWR at B6, an automatically and continuously upated median 
calibration value was used based on data acquired during this period.  After this period, 
sufficient tip curves were available to automatically and continuously determine and 
account for the temperature dependence of the calibration.
Suggestions: 
Use the data with caution.
Measurements:sgp5mwravgB6.c1:
  • 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)
  • Standard deviation about the mean for the total liquid water amount(liq_sdev)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • Time offset from base_time(time_offset)
  • Number of contiguous periods in averaging interval flagged by Dynamic Linear Mo(dlm_flag_periods)
  • North Latitude(lat)
  • -180.0 - +180.0(alt)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Number of points included in the ir_temp ensemble(num_obs_irt)
  • Number of data points averaged for 23tbsky, 31tbsky, vap & liq(num_obs)
  • IR Brightness Temperature(ir_temp)
  • Number of contiguous periods in averaging interval with water on Teflon window(water_flag_periods)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Standard deviation about the mean for the 23.8 GHz sky brightness temperature(tbsky23_sdev)
  • Number of data points averaged for ir_temp(num_obs_ir)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • Standard deviation about the mean for the IR brightness temperature(ir_temp_sdev)
  • Averaged total liquid water along LOS path(liq)
  • base time in epoch(base_time)
  • Total water vapor along LOS path(vap)
  • Fraction of data in averaging interval flagged by Dynamic Linear Model as poten(dlm_flag_fraction)
  • lon(lon)
more
sgpmwrlosB6.a0:
  • 23.8 GHz Blackbody signal(23bb)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • 31.4 GHz blackbody+noise injection signal(31bbn)
  • Averaged total liquid water along LOS path(liq)
  • 31.4 GHz sky signal(31sky)
  • Temperature correction coefficient at 23.8 GHz(temperature_correction_coef_23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • North Latitude(lat)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Temperature correction coefficient at 31.4 GHz(temperature_correction_coef_31)
  • -180.0 - +180.0(alt)
  • Which LOS configuration(losn)
  • 23.8 GHz noise injection brightness temperature(23unoise)
  • base time in epoch(base_time)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Actual Azimuth(actaz)
  • 31.4 GHz blackbody(31bb)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Blackbody kinetic temperature(tkbb)
  • 31.4 GHz sky signal(sky31)
  • IR Brightness Temperature(ir_temp)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • 31.4 GHz noise injection brightness temperature(31unoise)
  • Time offset from base_time(time_offset)
  • 23.8 GHz sky signal(sky23)
  • 23.8 GHz sky+noise injection signal(23skyn)
  • Total water vapor along LOS path(vap)
  • Ambient temperature(tkair)
  • 23.8 GHz sky signal(23sky)
  • lon(lon)
  • Noise injection temp at nominal temperature at 31.4 GHz(noise_injection_temp_31)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz blackbody+noise injection signal(23bbn)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at nominal temperature at 23.8 GHz(noise_injection_temp_23)
  • (tknd)
  • Actual elevation angle(actel)
  • 31.4 GHz sky+noise injection signal(31skyn)
  • 23.8 GHz Blackbody signal(bb23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
more
sgpmwrlosB6.b1:
  • IR Brightness Temperature(ir_temp)
  • 31.4 GHz sky signal(sky31)
  • Ambient temperature(tkair)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Total water vapor along LOS path(vap)
  • lon(lon)
  • 23.8 GHz sky signal(sky23)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Time offset from base_time(time_offset)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 23.8 GHz Blackbody signal(bb23)
  • (tknd)
  • -180.0 - +180.0(alt)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • North Latitude(lat)
  • 31.4 GHz blackbody(bb31)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Averaged total liquid water along LOS path(liq)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Blackbody kinetic temperature(tkbb)
  • base time in epoch(base_time)
more
sgpmwrlosB6.a1:
  • (tknd)
  • Actual Azimuth(actaz)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz Blackbody signal(bb23)
  • Ambient temperature(tkair)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Total water vapor along LOS path(vap)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • lon(lon)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • 31.4 GHz blackbody(bb31)
  • Mixer kinetic (physical) temperature(tkxc)
  • 23.8 GHz sky signal(sky23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 23.8 GHz sky brightness temperature(23tbsky)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Averaged total liquid water along LOS path(liq)
  • Blackbody kinetic temperature(tkbb)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Time offset from base_time(time_offset)
  • Actual elevation angle(actel)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • -180.0 - +180.0(alt)
  • North Latitude(lat)
  • 31.4 GHz sky brightness temperature(31tbsky)
  • IR Brightness Temperature(ir_temp)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • base time in epoch(base_time)
  • Temperature correction coefficient at 31.4 GHz(tc31)
more

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