DQR ID | Subject | Data Streams Affected |
---|---|---|
D081022.8 | TWP/SMET/C3 - Wind Speed data contain offset due to induced voltage | twpsmet60sC3.b1 |
D081027.2 | TWP/SMET/C2 - ORG rainrate high due to calibration. | twpsmet60sC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2004 | 0000 | 10/17/2008 | 0627 |
Subject: | TWP/SMET/C3 - Wind Speed data contain offset due to induced voltage |
DataStreams: | twpsmet60sC3.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: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/05/2008 | 2311 | 10/05/2008 | 2344 |
Subject: | TWP/SMET/C2 - ORG rainrate high due to calibration. |
DataStreams: | twpsmet60sC2.b1 |
Description: | The rainrate from the ORG was high due to calibration. This data is not real. |
Measurements: | twpsmet60sC2.b1:
|