DQRID : D101122.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
04/01/2007000001/01/20082359Does not affect quality
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Subject:
FKB/QCRAD/M1  - Error in qc flags
DataStreams:fkbqcrad1longM1.c1
Description:
In the qc_down_short_diffuse_hemisp field, QC failures from the test indicated by
    bit_13: "data failed tracker off test"
were set incorrectly as
    bit_9: "GSW2SumSW (93 > SZA > 75 and SumSW > 50; GSW/SumSW < 0.85 or GSW/SumSW > 
1.15)". 

In the qc_short_direct_normal field, QC failures from the test indicated by
    bit_10: "data failed tracker off test"
were set incorrectly as 
    bit_9: "GSW2SumSW (93 > SZA > 75 and SumSW > 50; GSW/ SumSW < 0.85 or GSW/SumSW > 
1.15)". 

This problem impacts all dates and times in which a solar tracker failure occurred at this 
facility.
Suggestions: 
For down_short_diffuse_hemisp use the auxiliary QC fields 

aqc_down_short_diffuse_hemisp, aqc_GSW2SumSW, and aqc_DifSW2GSW.

For short_direct_normal use the auxiliary QC fields aqc_short_direct_normal, aqc_GSW2SumSW, and aqc_DifSW2GSW.

If no solar tracker failure is indicated by the auxiliary QC fields you can safely ignore this DQR. 

For down_short_diffuse_hemisp use the auxiliary QC fields 
aqc_down_short_diff
use_hemisp, aqc_GSW2SumSW, and aqc_DifSW2GSW.

For short_direct_normal use the auxiliary QC fields aqc_short_direct_normal, aqc_GSW2SumSW, and aqc_DifSW2GSW.

If no solar tracker failure is indicated by the auxiliary QC fields you can safely ignore this DQR. 

For down_short_diffuse_hemisp use the auxiliary QC fields 
aqc_down_short_diffuse_he
misp, aqc_GSW2SumSW, and aqc_DifSW2GSW.

For short_direct_normal use the auxiliary QC fields aqc_short_direct_normal, aqc_GSW2SumSW, and aqc_DifSW2GSW.

If no solar tracker failure is indicated by the auxiliary QC fields you can safely ignore this DQR.
Measurements:fkbqcrad1longM1.c1:
  • short_direct_normal
  • down_short_diffuse_hemisp
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