Data Quality Reports for Session: 138452 User: aeround Completed: 10/31/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D090604.1GRW/TSI/M1 - Mirror reflectiongrwtsiskycoverM1.b1
D100209.3GRW/TSI/M1 - Shadowband MisalignmentgrwtsicldmaskM1.a1, grwtsiskycoverM1.b1, grwtsiskyimageM1.a1
D100511.1GRW/TSI/M1 - Contamination of mirrorgrwtsimovieM1.a1, grwtsicldmaskM1.a1, grwtsiskycoverM1.b1, grwtsiskyimageM1.a1
D110505.1GRW/TSI/M1 - Shadowband MisalignmentgrwtsiskycoverM1.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 : D100209.3
Start DateStart TimeEnd DateEnd Time
01/12/2010114202/02/20101125
Subject:
GRW/TSI/M1 - Shadowband Misalignment
DataStreams:grwtsicldmaskM1.a1, grwtsiskycoverM1.b1, grwtsiskyimageM1.a1
Description:
The shadowband was intermittently misaligned and not completely masking the sun because 
the mirror became loose from the shaft while being polished. The shadowband was realigned 
on 1/14 but by 1/27 was again slightly misaligned. The instrument was reoriented with true 
north on 1/27 and the shadowband adjusted again on 1/31. The problem was corrected on 
2/2 when the mirror mounting was tightened and the shadowband realigned.
Measurements:grwtsicldmaskM1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
grwtsiskycoverM1.b1:
  • count_sub_horz
  • region_sun_count
  • region_horizon_count_thin
  • region_horizon_count_opaque
  • count_mask
  • count_thin
  • region_sun_count_thin
  • region_zenith_count_thin
  • region_sun_count_opaque
  • Cloud amount, opaque (percent)(percent_opaque)
  • count_sky
  • Cloud amount, thin (percent)(percent_thin)
  • count_sub_proczen
  • count_opaque
  • count_box
  • region_horizon_count
  • region_zenith_count
  • region_zenith_count_opaque
grwtsiskyimageM1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D100511.1
Start DateStart TimeEnd DateEnd Time
02/09/2010184302/12/20101604
Subject:
GRW/TSI/M1 - Contamination of mirror
DataStreams:grwtsimovieM1.a1, grwtsicldmaskM1.a1, grwtsiskycoverM1.b1, grwtsiskyimageM1.a1
Description:
A persistent, agile bird was landing on top of and polluting the mirror, multiple times 
throughout the day, affecting the visible and processed images and cloud fraction data.
Measurements:grwtsimovieM1.a1:
  • MPEG data stream - documentation not yet available
grwtsicldmaskM1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
grwtsiskycoverM1.b1:
  • count_sky
  • Cloud amount, thin (percent)(percent_thin)
  • sun_strength
  • count_thin
  • count_opaque
  • region_zenith_count_thin
  • region_zenith_count
  • region_zenith_count_opaque
  • Cloud amount, opaque (percent)(percent_opaque)
grwtsiskyimageM1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D110505.1
Start DateStart TimeEnd DateEnd Time
05/13/2010134305/25/20100849
Subject:
GRW/TSI/M1 - Shadowband Misalignment
DataStreams:grwtsiskycoverM1.b1
Description:
The shadowband was slightly out of alignment because one corner of the instrument stand 
had sunk about 25mm.  The stand was releveled and the TSI re-aligned.
Measurements:grwtsiskycoverM1.b1:
  • region_sun_count
  • sun_strength
  • count_mask
  • count_thin
  • region_sun_count_thin
  • region_zenith_count_thin
  • region_sun_count_opaque
  • Cloud amount, opaque (percent)(percent_opaque)
  • Cloud amount, thin (percent)(percent_thin)
  • count_opaque
  • count_box
  • region_zenith_count
  • region_zenith_count_opaque

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