Data Quality Reports for Session: 119549 User: leii Completed: 05/11/2009

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D080828.1HFE/MWR/M1 - Insufficient calibration stabilityhfemwrlosM1.b1, hfemwrtipM1.a1
D090311.3HFE/MWR/M1 - Missing datahfemwrlosM1.b1, hfemwrtipM1.a1


DQRID : D080828.1
Start DateStart TimeEnd DateEnd Time
09/06/2008000009/26/20082359
10/01/2008000010/06/20081500
10/16/2008020110/16/20082359
10/20/2008000010/23/20082359
Subject:
HFE/MWR/M1 - Insufficient calibration stability
DataStreams:hfemwrlosM1.b1, hfemwrtipM1.a1
Description:
The noise diode temperature suddenly jumped to > 60 C after a power outage. Following 
additional power problems the noise diode injection temperature drifted fast and the 
radiometer was not able to calibrate properly.

Data during the indicated time periods are poorly calibrated and sometimes erratic. Users 
should be aware that the accuracy of the measurements is dramatically degraded. 

Users can use the microwave profiler (MWRP) data to supplement the MWR data.
Measurements:hfemwrlosM1.b1:
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • MWR column precipitable water vapor(vap)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Averaged total liquid water along LOS path(liq)
  • Mixer kinetic (physical) temperature(tkxc)
  • (tknd)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
hfemwrtipM1.a1:
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)

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DQRID : D090311.3
Start DateStart TimeEnd DateEnd Time
10/06/2008150110/16/20080200
10/17/2008000010/19/20082359
10/24/2008000010/26/20082359
11/09/2008000012/28/20080000
Subject:
HFE/MWR/M1 - Missing data
DataStreams:hfemwrlosM1.b1, hfemwrtipM1.a1
Description:
Data are missing and unrecoverable.
Measurements:hfemwrlosM1.b1:
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blackbody(bb31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Time offset of tweaks from base_time(time_offset)
  • Averaged total liquid water along LOS path(liq)
  • Mixer kinetic (physical) temperature(tkxc)
  • (tknd)
  • time(time)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • lon(lon)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • MWR column precipitable water vapor(vap)
  • lat(lat)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • Blackbody kinetic temperature(tkbb)
  • 31.4 GHz sky signal(sky31)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Ambient temperature(tkair)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 23.8 GHz Blackbody signal(bb23)
  • Dummy altitude for Zeb(alt)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 23.8 GHz sky signal(sky23)
  • base time(base_time)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
hfemwrtipM1.a1:
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Mixer kinetic (physical) temperature(tkxc)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • Ambient temperature(tkair)
  • Time offset of tweaks from base_time(time_offset)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Actual Azimuth(actaz)
  • Water on Teflon window (1=WET, 0=DRY)(wet_window)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • time(time)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • base time(base_time)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • lon(lon)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 31.4 GHz blackbody(bb31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Dummy altitude for Zeb(alt)
  • (tknd)
  • Actual elevation angle(actel)
  • 23.8 GHz Blackbody signal(bb23)
  • lat(lat)
  • 23.8 GHz sky signal(tipsky23)

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