Data Quality Reports for Session: 132567 User: gp8 Completed: 01/13/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100608.1TWP/CSPHOT/C2 - 340 nm filter degradation.twpcsphotaotC2.a1, twpcsphotaotfiltC2.a1, twpcsphotalm1duboC2.a1, twpcsphotaotfiltqaC2.a1


DQRID : D100608.1
Start DateStart TimeEnd DateEnd Time
11/01/2009000011/28/20102330
Subject:
TWP/CSPHOT/C2 - 340 nm filter degradation.
DataStreams:twpcsphotaotC2.a1, twpcsphotaotfiltC2.a1, twpcsphotalm1duboC2.a1, twpcsphotaotfiltqaC2.a1
Description:
There was 340 nm filter degradation in the Nauru Cimel Sunphotometer starting 11/1/2009.  
The 340 AOD was in disagreement with other channels sporadically starting 11/1/2009 and 
consistently off from the other channels by March 2010.  Therefore 340 AOD channel should 
not be used until the unit is replaced.  

The 340 nm filter will be changed when the instrument is sent back for calibration.
Measurements:twpcsphotaotC2.a1:
  • TripletVar_340
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
twpcsphotaotfiltC2.a1:
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)
twpcsphotalm1duboC2.a1:
  • Aerosol optical thickness,340nm(AOT_340)
twpcsphotaotfiltqaC2.a1:
  • Aerosol optical thickness, angstrom coefficient, at 340-440 nm, from CSPHOT(Angstrom340_440)
  • TripletVar_340
  • Aerosol optical thickness, at 340 nm, from CSPHOT(aot_340)

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