| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D080304.3 | NIM/MET/M1 - ORG underestimated precipitation | nimmetM1.b1 |
| D081022.11 | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage | nimmetM1.b1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/06/2006 | 0000 | 01/06/2007 | 2359 |
| Subject: | NIM/MET/M1 - ORG underestimated precipitation |
| DataStreams: | nimmetM1.b1 |
| Description: | The ORG underestimated precipitation by about 38% during the entire NIM deployment. No troubleshooting technique or replacement of gauge was successful in correcting the problem. |
| Measurements: | nimmetM1.b1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/06/2006 | 0000 | 01/07/2007 | 2359 |
| Subject: | NIM/MET/M1 - Wind Speed data contain offset due to induced voltage |
| DataStreams: | nimmetM1.b1 |
| Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
| Measurements: | nimmetM1.b1:
|