Data Quality Reports for Session: 105180 User: perez Completed: 04/12/2007


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D050617.1PYE/MWR/M1 - Instrument computer locked uppyemwrlosM1.b1
D050726.4PYE/MWR/M1 - Reprocessed: Calibration correctedpyemwrlosM1.b1, pyemwrtipM1.a1
D050927.1PYE/MWR/M1 - New software version (4.15) installedpyemwrlosM1.b1, pyemwrtipM1.a1


DQRID : D050617.1
Start DateStart TimeEnd DateEnd Time
06/09/2005000006/09/20051500
Subject:
PYE/MWR/M1 - Instrument computer locked up
DataStreams:pyemwrlosM1.b1
Description:
The MWR computer locked up and required a reboot at 00Z on June 9, 2005.  When the program 
was restarted, water vapor, liquid path, and temps dropped to zero.  They did not 
recover until 15Z the same day.
Measurements:pyemwrlosM1.b1:
  • Noise diode mount temperature(tknd)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • Mean total liquid water amount along LOS path(liq)
  • Blackbody kinetic temperature(tkbb)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz sky signal(sky23)
  • Ambient temperature(tkair)
  • Mean total water vapor amount along LOS path(vap)


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DQRID : D050726.4
Start DateStart TimeEnd DateEnd Time
05/29/2005000007/17/20052100
Subject:
PYE/MWR/M1 - Reprocessed: Calibration corrected
DataStreams:pyemwrlosM1.b1, pyemwrtipM1.a1
Description:
On May 28 1:30 GMT the NFOV radiometer was placed in the field of view of the MWR tip 
calibration. Almost immediately calibration of the MWR was compromised resulting in incorrect 
brightness temperatures and overestimation of both PWV and LWP. 

On July 15 the NFOV radiometer was moved away from the MWR and the instantaneous 
calibration values jumped back to normal. The median values returned to normal on July 17 around 
2100.

The LOS data were reprocessed using interpolated values for the calibration coefficients.  
The reprocessed data are available from the ARM Archive effective December 7, 2005.  
NOTE: the format of the reprocessed data are slightly different than the format of the 
original data and the data available before and after the reprocessed data period.  The 
quality of the data are not affected, just the format.

The MWRTIP data can not be reprocessed and should be used with caution.
Measurements:pyemwrtipM1.a1:
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • 23.8 GHz sky signal(tipsky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 23.8 GHz(tc23)

pyemwrlosM1.b1:
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mean total liquid water amount along LOS path(liq)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz sky signal(sky23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mean total water vapor amount along LOS path(vap)


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DQRID : D050927.1
Start DateStart TimeEnd DateEnd Time
02/01/2005070009/13/20051805
Subject:
PYE/MWR/M1 - New software version (4.15) installed
DataStreams:pyemwrlosM1.b1, pyemwrtipM1.a1
Description:
A problem began with the installation of MWR.EXE version 4.12 in July 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:pyemwrtipM1.a1:
  • 23.8 GHz sky brightness temperature derived from tip curve(tbsky23tip)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • 31.4 GHz sky signal(tipsky31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Blackbody kinetic temperature(tkbb)
  • Ambient temperature(tkair)
  • Noise diode mount temperature(tknd)
  • 31.4 GHz Blackbody signal(bb31)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • 31.4 GHz sky brightness temperature derived from tip curve(tbsky31tip)
  • 23.8 GHz sky signal(tipsky23)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz goodness-of-fit coefficient(r31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)

pyemwrlosM1.b1:
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • 31.4 GHz blackbody+noise injection signal(bbn31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Mean total liquid water amount along LOS path(liq)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz Blackbody signal(bb31)
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • 31.4 GHz sky signal(sky31)
  • 23.8 GHz sky signal(sky23)
  • Ambient temperature(tkair)
  • 23.8 GHz Blackbody signal(bb23)
  • 23.8 GHz blackbody+noise injection signal(bbn23)
  • Noise diode mount temperature(tknd)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Sky/Cloud Infra-Red Temperature(sky_ir_temp)
  • Blackbody kinetic temperature(tkbb)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Mean total water vapor amount along LOS path(vap)


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