Data Quality Reports for Session: 113891 User: koontz Completed: 08/28/2008


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050928.1TWP/MWR/C1 - New software version (4.15) installedtwpmwrlosC1.b1, twpmwrtipC1.a1


DQRID : D050928.1
Start DateStart TimeEnd DateEnd Time
10/31/2002220009/13/20051854
Subject:
TWP/MWR/C1 - New software version (4.15) installed
DataStreams:twpmwrlosC1.b1, twpmwrtipC1.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in October 2002. The 
software had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier 
problem.  The software upgrade corrected the earlier problem but introduced a new one that 
caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip 
curves, and saturation of CPU usage.  Software versions 4.13 and 4.14 also produced 
these problems.

The new MWR software version (4.15) was installed on 9/13/2005. As a consequence of this 
upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s.
Measurements:twpmwrlosC1.b1:
  • Mixer kinetic (physical) temperature(tkxc)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • IR Brightness Temperature(ir_temp)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • Sky brightness temperature at 23.8 GHz(tbsky23)
  • 23.8 GHz Blackbody signal(bb23)
  • Blackbody kinetic temperature(tkbb)
  • (tknd)
  • 31.4 GHz blackbody(bb31)
  • 31.4 GHz sky signal(sky31)
  • Sky brightness temperature at 31.4 GHz(tbsky31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • MWR column precipitable water vapor(vap)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Ambient temperature(tkair)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Averaged total liquid water along LOS path(liq)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Sky Infra-Red Temperature(sky_ir_temp)
  • 23.8 GHz sky signal(sky23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)

twpmwrtipC1.a1:
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • Tip configuration number(tipn)
  • Mixer kinetic (physical) temperature(tkxc)
  • IR Brightness Temperature(ir_temp)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 31.4 GHz blac2body+noise injection signal(bbn31)
  • 31.4 GHz sky signal(tipsky31)
  • 23.8 GHz Blackbody signal(bb23)
  • Ambient temperature(tkair)
  • (tknd)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • Blackbody kinetic temperature(tkbb)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 23.8 GHz sky signal(tipsky23)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 31.4 GHz blackbody(bb31)
  • Blackbody temperature 1(tkbb1)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Blackbody temperature 2(tkbb2)
  • Temperature correction coefficient at 31.4 GHz(tc31)


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