DQR ID | Subject | Data Streams Affected |
---|---|---|
D060426.8 | TWP/SMET/C3 - ORG data noisy due to degraded ground | twpsmet60sC3.b1 |
D060627.1 | TWP/SMET/C3 - Anemometer Readings Incorrect | twpsmet60sC3.b1 |
D060629.1 | TWP/MMCR/C3 - Reprocess: Reflectivity Calibration Problems | twpmmcrmomC3.b1, twpmmcrspecmomC3.a0 |
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 |
D061220.34 | TWP/VCEIL/C3 - standard instrument installed | twpvceil25kC3.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 |
---|---|---|---|
06/27/2006 | 0115 | 06/27/2006 | 0344 |
Subject: | TWP/SMET/C3 - Anemometer Readings Incorrect |
DataStreams: | twpsmet60sC3.b1 |
Description: | The Anemometer readings were incorrect due to the tower being lowered for maintenance. |
Measurements: | twpsmet60sC3.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/02/2005 | 0000 | 07/18/2006 | 2359 |
Subject: | TWP/MMCR/C3 - Reprocess: Reflectivity Calibration Problems |
DataStreams: | twpmmcrmomC3.b1, twpmmcrspecmomC3.a0 |
Description: | There was a problem with the reflectivity values being shifted 15-20 dBz less than what one might expect them to be. The low noise amplifier (LNA) was damaged by lightning. The LNA was replaced 20060718. |
Measurements: | twpmmcrspecmomC3.a0:
twpmmcrmomC3.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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/18/2006 | 2300 | 12/20/2006 | 0400 |
Subject: | TWP/VCEIL/C3 - standard instrument installed |
DataStreams: | twpvceil25kC3.b1 |
Description: | A spare ceilometer without the tropics window option was installed. The manufacturer recommends the tropics window be used at +/- 25 deg lattitude to prevent direct solar radiation into the laser optics when the instrument pointed at zenith. No significant signal degradation is apparent during the autumnal equinox but, as a precaution, the unit was replaced with the original with a tropics window. |
Measurements: | twpvceil25kC3.b1:
|