Data Quality Reports for Session: 134634 User: wqquan Completed: 05/06/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090604.1GRW/TSI/M1 - Mirror reflectiongrwtsiskycoverM1.b1
D100216.6GRW/VCEIL/M1 - Reprocess: Incorrect serial_number and sum_backscatter fieldsgrwvceil25kM1.b1
D100402.3GRW/WACR/M1 - Coherence Filter ContaminationgrwwacrM1.b1
D101020.2GRW/AOS/M1 - Data processing problemgrwaosM1.a1, grwnoaaaosM1.b1, grwnoaaaosavgM1.b1


DQRID : D090604.1
Start DateStart TimeEnd DateEnd Time
04/14/2009150006/19/20091540
Subject:
GRW/TSI/M1 - Mirror reflection
DataStreams:grwtsiskycoverM1.b1
Description:
A deformity in the mirror produced an anomolous refraction within the mirror surface that 
appeared in the images as a white streak near the top of the mirror and shadowband. The 
mirror was replaced on 6/19.
Measurements:grwtsiskycoverM1.b1:
  • region_sun_count
  • region_sun_count_thin
  • region_sun_count_opaque

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DQRID : D100216.6
Start DateStart TimeEnd DateEnd Time
04/13/2009000010/31/20092359
Subject:
GRW/VCEIL/M1 - Reprocess: Incorrect serial_number and sum_backscatter fields
DataStreams:grwvceil25kM1.b1
Description:
Attribute serial_number: In most cases, this field is not representative of the actual 
serial number of the instrument because the value did not change when an instrument changed 
locations or was replaced with a spare.
   
Variable sum_backscatter: An out-of-range condition for the "sum of detected and 
normalized backscatter" was reported as 0 instead of missing (-9999). The valid range is 0 - 
0.0999 /srad.
Measurements:grwvceil25kM1.b1:
  • sum_backscatter

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DQRID : D100402.3
Start DateStart TimeEnd DateEnd Time
06/09/2009160004/02/20101200
Subject:
GRW/WACR/M1 - Coherence Filter Contamination
DataStreams:grwwacrM1.b1
Description:
The coherence filter (software) that was added to the WACR under BCR-01500 was causing 
occasional contamination to WACR data.  This was exhibited in the first 2000 m of range by 
streaking in the data over a period of time. It didn't occur often and when it did, it is 
quite obvious looking at the plots.  

On 4/2/2010 at 12:00 UTC, the coherence filter was modified to preclude working on signals 
with a SNR greater than 60 dB.  The vendor thinks this will solve the problem.
Measurements:grwwacrM1.b1:
  • lat
  • PowerHotLoad
  • Temp_Computer_Enclosure
  • Temp_Antenna_Bottom
  • SignalToNoiseRatio
  • heights
  • PowerAmbientLoad
  • Temp_LNA
  • Temp_Modulator_Control
  • Polarization
  • PowerTransmitDriver
  • Temp_Hot
  • txpower
  • Temp_ambient
  • MMCR Spectral Width(SpectralWidth)
  • Noise
  • Temp_Outside
  • Temp_Future
  • base_time
  • alt
  • time
  • time_offset
  • wacr_status
  • Temp_Chiller
  • lon
  • Cloud, reflectivity, at altitude(Reflectivity)
  • Temp_Antenna_Top
  • Temp_Chiller_Supply
  • Temp_modulator
  • Temp_EIKA
  • MMCR Mean Doppler Velocity(MeanDopplerVelocity)
  • Temp_Chiller_Return

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DQRID : D101020.2
Start DateStart TimeEnd DateEnd Time
04/15/2009000012/31/20090000
Subject:
GRW/AOS/M1 - Data processing problem
DataStreams:grwaosM1.a1, grwnoaaaosM1.b1, grwnoaaaosavgM1.b1
Description:
The AOS data was reprocessed for the AMF, SGP and NSA sites. There was an error in the 
processing of the corrections for the PSAP absorption signal such that a low pass filter was 
implemented for the scattering data used in these corrections.The difference between the 
corrected and previous data is < 0.05 Mm-1 (below the instrument detection limit) and 
should not have a significant effect on the previous data. Data will be reprocessed at a 
later time when more significant changes to the data processing are implemented.
Measurements:grwnoaaaosavgM1.b1:
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1)
grwaosM1.a1:
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1)
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1)
  • Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_G_Dry_10um_PSAP3W_1)
  • Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1)
  • Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1)
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
grwnoaaaosM1.b1:
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_1um_PSAP3W_1)
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_B_Dry_1um_PSAP3W_1)
  • Absorption Coefficient Blue, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_B_Dry_10um_PSAP3W_1)
  • Aerosol light absorption coefficient, green channel, 10 um particle diameter(Ba_G_Dry_10um_PSAP1W_1)
  • Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_G_Dry_10um_PSAP3W_1)
  • Absorption Coefficient Green, corrected for flow and sample area, 3 wavelength
    PSAP, 1 um size cut(Ba_G_Dry_1um_PSAP3W_1)
  • Aerosol light absorption coefficient, green channel, 1 um particle diameter(Ba_G_Dry_1um_PSAP1W_1)
  • Absorption Coefficient Red, corrected for flow and sample area, 3 wavelength
    PSAP, 10 um size cut(Ba_R_Dry_10um_PSAP3W_1)

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