DQR ID | Subject | Data Streams Affected |
---|---|---|
D070412.3 | TWP/MWR/C1/C2 - Sun in the field of view | twpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1 |
D080617.1 | TWP/SMET/C2 - ORG rainfall measurements too large | twpsmet60sC2.b1 |
D080925.1 | TWP/SONDE/C2 - Bad RH values throughout sounding | twpsondewnpnC2.b1 |
D081022.5 | TWP/SMET/C2 - Wind Speed data contain offset due to induced voltage | twpsmet60sC2.b1 |
D081027.2 | TWP/SMET/C2 - ORG rainrate high due to calibration. | twpsmet60sC2.b1 |
D081114.1 | TWP/SONDE/C2 - Defective Temperature Sensor | twpsondewnpnC2.b1 |
D081216.1 | TWP/MWR/C2 - Incorrect ambient temperature during rain | twpmwrlosC2.b1, twpmwrtipC2.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/2007 | 0000 | 04/02/2007 | 2359 |
03/01/2008 | 0000 | 04/02/2008 | 2359 |
09/10/2008 | 0000 | 10/12/2008 | 0000 |
03/01/2009 | 0000 | 04/02/2009 | 2359 |
09/11/2009 | 0000 | 10/10/2009 | 2359 |
Subject: | TWP/MWR/C1/C2 - Sun in the field of view |
DataStreams: | twpmwrlosC1.b1, twpmwrlosC2.b1, twpmwrtipC1.a1, twpmwrtipC2.a1 |
Description: | Every day between around noon local time (usually between 1 and 2 AM UTC time) there is an increase in the brightness temperatures due to the sun in the field of view of the radiometer. |
Measurements: | twpmwrlosC2.b1:
twpmwrlosC1.b1:
twpmwrtipC1.a1:
twpmwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/08/2008 | 0000 | 08/07/2008 | 2300 |
Subject: | TWP/SMET/C2 - ORG rainfall measurements too large |
DataStreams: | twpsmet60sC2.b1 |
Description: | The ORG was collecting large amounts of rainfall compared to the co-located tipping bucket raingauge. The cable was chewed by mice causing the wires to make contact intermittently mimicking rainfall. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/08/2008 | 1145 | 09/08/2008 | 1145 |
Subject: | TWP/SONDE/C2 - Bad RH values throughout sounding |
DataStreams: | twpsondewnpnC2.b1 |
Description: | RH values fluctuate largely in a stepping function throughout the sounding. Suspect bad RH sensors. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/1998 | 0000 | 02/23/2009 | 0410 |
Subject: | TWP/SMET/C2 - Wind Speed data contain offset due to induced voltage |
DataStreams: | twpsmet60sC2.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: | twpsmet60sC2.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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/04/2008 | 1145 | 11/04/2008 | 1145 |
Subject: | TWP/SONDE/C2 - Defective Temperature Sensor |
DataStreams: | twpsondewnpnC2.b1 |
Description: | Temperature sensor shows a +30C offset for duration of flight. |
Measurements: | twpsondewnpnC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/09/2008 | 0100 | 01/09/2009 | 0300 |
Subject: | TWP/MWR/C2 - Incorrect ambient temperature during rain |
DataStreams: | twpmwrlosC2.b1, twpmwrtipC2.a1 |
Description: | The ambient temperature was approximately 15 degree higher than what it should be when it was raining and the heater came. On Jan 9 2009 the dewblower was replaced which solved the problem. The increased ambient temperature (tkair) was happening during times of rain and users should always disregard MWR data during rain events. Therefore this DQR is colored transparent. |
Measurements: | twpmwrlosC2.b1:
twpmwrtipC2.a1:
|