DQRID : D080430.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/13/2008021503/23/20112359Incorrect
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Subject:
NSA/MMCR/C1 - Reflectivities too high
DataStreams:nsammcrspecmomC1.a0, nsammcrmomC1.b1
Description:
Comparison with the Canadian NRC radar's aboard their Convair seem to indicate that the 
Barrow MMCR is reporting reflectivity approximately 10 dBZ higher than they should be.

We are currently analyzing the radar's calibration and trying to figure out where this 
offset may be coming from.  

If using reflectivity values, 10 dBZ should be subtracted.  I estimate that this should be 
accurate to within +/- 2 dBZ.  Once we find the cause and can come up with an accurate 
offset, this DQR will be revised and a request to reprocess the data will be submitted.
Suggestions: 
Subtract 10 dBZ from reflectivity values
Measurements:nsammcrmomC1.b1:
  • Reflectivity
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nsammcrspecmomC1.a0:
  • Reflectivity
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