DQRID : D060419.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/24/2005000009/19/20061729Does not affect quality
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Subject:
NIM/TSI/M1 - Reprocessed and Corrected: Data processing problem
DataStreams:nimtsicldmaskM1.a1, nimtsiskycoverM1.b1
Description:
DATA REPROCESSED and CORRECTED: 

Due to the high aerosol conditions at Niamey, the TSI appeared to be beyond the limits of 
processing the color JPEG image into cloud fraction values. The processed images indicate 
an opaque sky cover, even in the absence of clouds. The problem was corrected by 
removing the neutral density filter from the lens and re-adjusting the sky filter values.

The data were archived in January 2017. Please retrieve the reprocessed data for use in 
your analysis. 

ORIGINAL DQR CATEGORY: Yellow (Suspect)

REPROCESSED and CORRECTED DATA ARCHIVED:2017-01

REPROCESS IDENTIFICATION NUMBER: RID 313

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--- ORIGINAL DQR DESCRIPTION ---
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Due to the high aerosol conditions at Niamey, the TSI appeared to be beyond the limits of 
processing the color JPEG image into cloud fraction values. Several attempts to adjust 
the sky filter values used to process the images did not yielded the desired results. The 
processed images indicate an opaque sky cover, even in the absence of clouds.

The problem was corrected by removing the neutral density filter from the lens and 
re-adjusting the sky filter values.

The data can be reprocessed.
Suggestions: 
Measurements:nimtsicldmaskM1.a1:
  • png
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nimtsiskycoverM1.b1:
  • count.thin
  • region.zenith.count.thin
  • region.sun.count.opaque
  • region.sun.count.thin
  • count.opaque
  • region.zenith.count.opaque
  • sunny
  • region.horizon.count.thin
  • percent.opaque
  • region.horizon.count.opaque
  • percent.thin
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