DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D080218.2 | NSA/MMCR/C1/C2 - Wrong Polarization | nsammcrmomC1.b1 | Incorrect |
D080430.1 | NSA/MMCR/C1 - Reflectivities too high | nsammcrmomC1.b1 | Incorrect |
D090817.2 | NSA/MMCR/C1 - CUDC failure | nsammcrmomC1.b1 | Incorrect |
D100125.1 | NSA/MMCR/C1 - Reflectivity shift | nsammcrmomC1.b1 | Incorrect |
D100224.1 | NSA/MMCR/C1 - Reflectivity bias | nsammcrmomC1.b1 | Incorrect |
D100224.3 | NSA/MMCR/C1 - Reflectivity bias | nsammcrmomC1.b1 | Incorrect |
D100402.1 | NSA/MMCR/C1 - Coherent Up/Down Converter failure | nsammcrmomC1.b1 | Incorrect |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/01/2007 | 0100 | 02/14/2008 | 0200 | Incorrect |
Subject: | NSA/MMCR/C1/C2 - Wrong Polarization |
DataStreams: | nsammcrmomC1.b1 |
Description: | The new antenna was mistakingly set to transmit/receive in circular polarization instead of linear polarization. The result is that reflectivities are much lower than they should be. Since we only measure on polarization channel, there is no way to apply a correction to go from circular to linear polarization. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/13/2008 | 0215 | 03/23/2011 | 2359 | Incorrect |
Subject: | NSA/MMCR/C1 - Reflectivities too high |
DataStreams: | 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. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
08/12/2009 | 1300 | 08/17/2009 | 1615 | Incorrect |
Subject: | NSA/MMCR/C1 - CUDC failure |
DataStreams: | nsammcrmomC1.b1 |
Description: | The Coherent Up/Down Converter's +15 vdc power supply failed. During this time the MMCR was supplying erroneous data. Instrument was taken offline. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/10/2010 | 0000 | 01/18/2010 | 1830 | Incorrect |
Subject: | NSA/MMCR/C1 - Reflectivity shift |
DataStreams: | nsammcrmomC1.b1 |
Description: | A significantly high over-reporting of reflectivity occurred during this period. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/10/2010 | 0000 | 01/18/2010 | 1930 | Incorrect |
Subject: | NSA/MMCR/C1 - Reflectivity bias |
DataStreams: | nsammcrmomC1.b1 |
Description: | The MMCR calibration was incorrect causing a very large positive shift in reflectivity values. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
02/10/2010 | 0000 | 02/23/2010 | 0230 | Incorrect |
Subject: | NSA/MMCR/C1 - Reflectivity bias |
DataStreams: | nsammcrmomC1.b1 |
Description: | The MMCR calibration was incorrect causing a very large positive shift in reflectivity values. |
Measurements: | nsammcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/10/2009 | 1800 | 12/22/2009 | 1700 | Incorrect |
Subject: | NSA/MMCR/C1 - Coherent Up/Down Converter failure |
DataStreams: | nsammcrmomC1.b1 |
Description: | Coherent Up/Down Converter failure. Replacement was installed on 12/22/2009 at 1700. |
Measurements: | nsammcrmomC1.b1:
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