DQRID : D940728.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/15/1994000007/19/19942359Suspect
more
Subject:
BSRN Pyran(PSP1) shadearm off alignment and NIP not tracking
DataStreams:sgpbsrnC1.a1
Description:
Subject: BSRN Data Release (July 15 - July 19, 1994) 

Name: Trevor Ley (SRRB\NOAA)   Instrument Mentor Dr. John DeLuisi

Email address: trevor@srrb.noaa.gov

Telephone: (303) 497-7315

Institution: SRRB\NOAA


Platform/Measurement: BSRN Pyranometer (PSP1) shadearm off
alignment and NIP not tracking.

        what level data: a1

 period of time in question
        start: July 15, 1994 at 00:00:00 (GMT)

        end:   July 19, 1994 at 23:59:59  (GMT)


 Data should be labeled:
        
      -Calculated Global irradiance could be labeled
       "incorrect".
     - NIP not tracking correctly
       
 Discussion of Problem:

  1. The shadearm on the Pyranometer (PSP1), calculating diffuse  
     irradiance, was off alignment (power outage).  
 
     Use this algorithm to pick out the times that the 
     shadearm is off of alignment.

          (PSP2-(NIP*cosine of zenith angle))/PSP1 < .90

   2. NIP tracker was down because of power outage.

Other observations/measurements impacted by this problem:

          * Calculated Global Irradiance and Diffuse Irradiance
          * Direct Normal Irradiance measurement is Wrong

Suggested Corrections of the Problem:  None

    


REQUIRED ACTIONS:

This report is informational no further action required

Experiment Center action required as follows:

     Supply with BSRN data release (July 15- July 19, 1994)


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TO BE FILLED IN UPON COMPLETION OF ACTION ABOVE:
 Action Taken:


Experiment Center:



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Suggestions: 
Measurements:sgpbsrnC1.a1:
  • lon
  • psp2
  • time_offset
  • alt
  • psp1
  • nip
  • base_time
  • lat
  • psig
more

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