Data Quality Reports for Session: 131652 User: lijun1ljr Completed: 11/17/2010

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030130.3SGP/TSI/C1 - Metadata Errors in NetCDF HeadersgptsiskycoverC1.a1, sgptsiskycoverC1.b1
D031218.1SGP/TSI/C1 - Shadowband misalignedsgptsiC1.00, sgptsicldmaskC1.a1, sgptsiskycoverC1.a1, sgptsiskycoverC1.b1,
sgptsiskyimageC1.a1
D040526.1SGP/TSI/C1 - Metadata errorssgptsiskycoverC1.a1, sgptsiskycoverC1.b1
D041116.2SGP/TSI/C1 - Shadowband MisalignmentsgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
D050321.2SGP/TSI/C1 - Instrument failuresgptsiC1.00, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
D050928.8SGP/TSI/C1 - Heater problemsgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
D080411.2SGP/TSI/C1 - Missing datasgptsimovieC1.a1, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
D080414.2SGP/TSI/C1 - Contamination of mirrorsgptsimovieC1.a1, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1


DQRID : D030130.3
Start DateStart TimeEnd DateEnd Time
07/02/2000003501/21/20032359
Subject:
SGP/TSI/C1 - Metadata Errors in NetCDF Header
DataStreams:sgptsiskycoverC1.a1, sgptsiskycoverC1.b1
Description:
The value of "sample_int" reported in the netCDF header is
incorrect.  The correct sampling interval is 30 seconds.

The maximum values for the variable "sunny" is incorrect.  
It should be 1, not 100 as documented in the netCDF header. 
Users should disregard the "qc_sunny" flag during this
period of time and apply their own qc check if desired.

The minimum value for the variable "solar.altitude" is
incorrect. It should be -90, not 10 as documented in the
netCDF header.  Users should disregard the "qc_solar.altitude"
flag during this period of time and apply their own qc check
if desired.
Measurements:sgptsiskycoverC1.a1:
  • time_offset
sgptsiskycoverC1.b1:
  • Sunshine Meter(sunny)
  • solar.altitude
  • time_offset

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DQRID : D031218.1
Start DateStart TimeEnd DateEnd Time
06/25/2003184007/05/20031523
Subject:
SGP/TSI/C1 - Shadowband misaligned
DataStreams:sgptsiC1.00, sgptsicldmaskC1.a1, sgptsiskycoverC1.a1, sgptsiskycoverC1.b1,
sgptsiskyimageC1.a1
Description:
The shadowband and mask were initially misaligned after the re-installation of the TSI.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsiC1.00:
  • Raw data stream - documentation not supported
sgptsiskycoverC1.a1:
  • region.zenith.count.thin
  • region.sun.count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • region.sun.count
  • region.zenith.count
  • region.sun.count.opaque
  • region.horizon.count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.horizon.count
  • region.zenith.count.opaque
  • region.horizon.count.thin
sgptsiskycoverC1.b1:
  • region.horizon.count.opaque
  • count.mask
  • region.zenith.count.thin
  • count.unknown
  • region.zenith.count
  • count.sub.proczen
  • region.zenith.count.opaque
  • count.sky
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count.thin
  • region.horizon.count
  • region.horizon.count.thin
  • count.sub.horz
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • region.sun.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.box

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DQRID : D040526.1
Start DateStart TimeEnd DateEnd Time
07/02/2000003505/05/20032359
Subject:
SGP/TSI/C1 - Metadata errors
DataStreams:sgptsiskycoverC1.a1, sgptsiskycoverC1.b1
Description:
The latitude, longitude and altitude of the Total Sky Imager 
(TSI) were incorrectly entered into the ARM database.  The 
correct location of the SGP.C1 TSI is:
   Lat: 36.606N
   Lon: 97.485W
   Alt:    316m
Measurements:sgptsiskycoverC1.a1:
  • alt
  • lon
  • lat
sgptsiskycoverC1.b1:
  • lon
  • alt
  • lat

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DQRID : D041116.2
Start DateStart TimeEnd DateEnd Time
10/25/2004164011/16/20042232
Subject:
SGP/TSI/C1 - Shadowband Misalignment
DataStreams:sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
Description:
The shadowband was slightly misaligned and was corrected by adjusting it +2 degrees.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsiskycoverC1.b1:
  • count.sky
  • region.sun.count.opaque
  • count.opaque
  • region.sun.count.thin
  • region.sun.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.mask
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • count.sub.proczen

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DQRID : D050321.2
Start DateStart TimeEnd DateEnd Time
03/17/2005192504/05/20051630
Subject:
SGP/TSI/C1 - Instrument failure
DataStreams:sgptsiC1.00, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
Description:
The TSI-880 experienced a power and/or computer failure. It was replaced with a spare 
TSI-440 and data collection resumed 4/5/05.  Note: this is a temporary replacement.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsiC1.00:
  • Raw data stream - documentation not supported
sgptsiskycoverC1.b1:
  • region.horizon.count.opaque
  • solar.altitude
  • count.mask
  • region.zenith.count.thin
  • count.unknown
  • region.zenith.count
  • count.sub.proczen
  • lat
  • region.zenith.count.opaque
  • count.sky
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count.thin
  • lon
  • solar.azimuth
  • region.horizon.count
  • region.horizon.count.thin
  • count.sub.horz
  • alt
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • base_time
  • Sunshine Meter(sunny)
  • region.sun.count
  • count.box
  • Cloud amount, opaque (percent)(percent.opaque)
  • sun.strength
  • time_offset

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DQRID : D050928.8
Start DateStart TimeEnd DateEnd Time
08/01/2005213510/06/20051650
Subject:
SGP/TSI/C1 - Heater problem
DataStreams:sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
Description:
The TSI was converted from a model 880 to 660 which requires separate power for the mirror 
heater. The heater was not powered during this period so morning dew and other 
condensation was not quickly evaporated.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsiskycoverC1.b1:
  • count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin

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DQRID : D080411.2
Start DateStart TimeEnd DateEnd Time
07/23/2007211008/27/20071530
Subject:
SGP/TSI/C1 - Missing data
DataStreams:sgptsimovieC1.a1, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
Description:
Data are missing and unrecoverable.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
sgptsiskycoverC1.b1:
  • region.horizon.count.opaque
  • solar.altitude
  • count.mask
  • region.zenith.count.thin
  • count.unknown
  • region.zenith.count
  • count.sub.proczen
  • lat
  • region.zenith.count.opaque
  • count.sky
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count.thin
  • lon
  • solar.azimuth
  • region.horizon.count
  • region.horizon.count.thin
  • count.sub.horz
  • alt
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • base_time
  • Sunshine Meter(sunny)
  • region.sun.count
  • count.box
  • Cloud amount, opaque (percent)(percent.opaque)
  • sun.strength
  • time_offset

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DQRID : D080414.2
Start DateStart TimeEnd DateEnd Time
03/21/2008000004/15/20081600
Subject:
SGP/TSI/C1 - Contamination of mirror
DataStreams:sgptsimovieC1.a1, sgptsicldmaskC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1
Description:
A persistent bird was landing on and polluting the mirror, multiple times throughout the 
day. Spikes were placed on the corners and top of the instrument (an affective deterrent 
in the past) but this bird had the agility to perch on the top-center of the mirror.
Measurements:sgptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
sgptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
sgptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
sgptsiskycoverC1.b1:
  • count.sky
  • count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.thin
  • region.zenith.count
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • region.zenith.count.opaque

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