DQR ID | Subject | Data Streams Affected |
---|---|---|
D021211.1 | TWP/MET/C3 - WIND DIRECTION SENSOR #2 MISALIGNED | twpsmet60sC3.a1, twpsmet60sC3.b1 |
D030212.1 | TWP/SMET/C3 - Intermittent Pressure Sensor Failure | twpsmet60sC3.a1, twpsmet60sC3.b1 |
D031103.2 | TWP/SMET/C3 - Data reported at 15sec rather than 60s intervals | twpsmet60sC3.a1, twpsmet60sC3.b1 |
D040722.4 | TWP/SMET/C3 - Rain blocked pressure port | twpsmet60sC3.b1 |
D040726.3 | TWP/SMET/C3 - Negative rainfall rates | twpsmet60sC3.b1 |
D051117.3 | TWP/SMET/C3 - Instrument failure | twpsmet60sC3.b1 |
D060426.8 | TWP/SMET/C3 - ORG data noisy due to degraded ground | twpsmet60sC3.b1 |
D060818.3 | TWP/SMET/C3 - Reprocess: Barometric Data Changed from hPa to kPa | twpsmet60sC3.b1 |
D061011.4 | TWP/SMET/C3 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC3.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/21/2002 | 0000 | 12/09/2002 | 0000 |
Subject: | TWP/MET/C3 - WIND DIRECTION SENSOR #2 MISALIGNED |
DataStreams: | twpsmet60sC3.a1, twpsmet60sC3.b1 |
Description: | Wind direction sensor #2 was misaligned and off by 15 degrees. |
Measurements: | twpsmet60sC3.a1:
twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/2002 | 0000 | 02/06/2003 | 2203 |
Subject: | TWP/SMET/C3 - Intermittent Pressure Sensor Failure |
DataStreams: | twpsmet60sC3.a1, twpsmet60sC3.b1 |
Description: | The Barometric Pressure sensor was intermittently failing at TWP site C3 Darwin. At times there were large pressure fluctuations occurring on the order of 24 mb in a few minutes. Times of large pressure fluctuations are readily apparent in the data. At these times the data should be carefully analyzed before determining it's usefulness. In between the periods of large fluctuations the readings appear to be stable. It is still suggested that independent pressure data be obtained for comparison before use. |
Measurements: | twpsmet60sC3.a1:
twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0628 | 06/03/2002 | 2359 |
Subject: | TWP/SMET/C3 - Data reported at 15sec rather than 60s intervals |
DataStreams: | twpsmet60sC3.a1, twpsmet60sC3.b1 |
Description: | Data in these data streams should be reports at 60sec intervals, but the logger program running during this time had the interval set to 15s. Users will have to average the 15sec data to get 60sec data. |
Measurements: | twpsmet60sC3.a1:
twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/2004 | 0000 | 05/17/2004 | 2259 |
Subject: | TWP/SMET/C3 - Rain blocked pressure port |
DataStreams: | twpsmet60sC3.b1 |
Description: | Atmospheric pressure values were suspect due to anomolous readings during heavy rain events. Suspect blockage of port due to rainfall. New logger and enclosure corrected problem. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0628 | 05/17/2004 | 2300 |
Subject: | TWP/SMET/C3 - Negative rainfall rates |
DataStreams: | twpsmet60sC3.b1 |
Description: | Due to limitations of the Zeno dataloggers all voltage measurements from the optical rain gauge (ORG) were converted to rainfall rates. This resulted in negative values for rain rates. Any value below 0.10 mm/hr should be considered to be 0 mm/hr. New dataloggers alleviated this problem. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/14/2005 | 0453 | 11/23/2005 | 0000 |
Subject: | TWP/SMET/C3 - Instrument failure |
DataStreams: | twpsmet60sC3.b1 |
Description: | A lightning strike caused a failure in the ORG. Rainfall was being continually recorded. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/2005 | 0000 | 08/24/2006 | 2359 |
Subject: | TWP/SMET/C3 - ORG data noisy due to degraded ground |
DataStreams: | twpsmet60sC3.b1 |
Description: | SMET Rain Data began to be noisy during December 2005 and the problem slowly became worse over time so that in February 2006 the ORG was reporting with a constant background value of around 0.10 mm/hr rain rate. ORG voltage showed a near constant value above the 85mV threshold. The ground for the ORG had become degraded and was lost due to corrosion. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/02/2003 | 0000 | 07/13/2006 | 2219 |
Subject: | TWP/SMET/C3 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | twpsmet60sC3.b1 |
Description: | Barometric pressure data was converted from hPa to kPa in order to standardize the measurement units among ARM sites and to conform to accepted standard units determined by the scientific community. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/12/2002 | 0000 | 09/26/2006 | 1435 |
Subject: | TWP/SMET/C3 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC3.b1 |
Description: | A tipping bucket rain gauge was added to the SMET suite of instruments effective 20060926. Two new variables (count and rain amount) were added at the end of the twpsmet60sC1.b1 datastream. When reprocessing of this datastream occurs these variables will be added with -9999 (missing) as the value for dates prior to gauge installation. |
Measurements: | twpsmet60sC3.b1:
|