Data Quality Reports for Session: 153738 User: koontz Completed: 10/10/2013


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D130725.1NSA/SURFSPECALB/C1 - Data processing problemnsasurfspecalb1mlawerC1.c1, nsasurfspecalb1mlawerC1.s1


DQRID : D130725.1
Start DateStart TimeEnd DateEnd Time
04/07/1998000011/25/20110000
Subject:
NSA/SURFSPECALB/C1 - Data processing problem
DataStreams:nsasurfspecalb1mlawerC1.c1, nsasurfspecalb1mlawerC1.s1
Description:
An intermediate process, surfspecalb_transform, of the surfspecalb1mlawer VAP incorrectly 
treated its input datastream (intermediate datastream surfspecalbmfrsr.c0) as it had a 
bin alignment equal to the end of the bin, but it was actually the middle of the bin.  The 
result was a shifting of the values with respect to time 10 seconds to the left.  The 
impact on the primary measurement, spectral albedo, was considered to be less than the 
uncertainty of that measurement.  The attached plot 
sgpsurfspecalb1mlawerC1.20040101.000000.spectral_albedo.png, shows the before and after values of the spectral albedo (in red, the 
blue line is not visible because the values are almost the same), and the absolute value 
of the difference of these values (in purple).  The axis on the left is for the red line 
representing albedo, the axis for the difference (purple line) is on the right. 
The problem occurs for all measurements dimensioned by time.
Measurements:nsasurfspecalb1mlawerC1.s1:
  • HLN(VN)

nsasurfspecalb1mlawerC1.c1:
  • HLN(VN)


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