DQR ID | Subject | Data Streams Affected |
---|---|---|
D040421.1 | TWP/SMET/C2 - Wind Sensor failure | twpsmet60sC2.b1 |
D040722.6 | TWP/SMET/C2 - All data missing due to logger change | twpsmet60sC2.b1 |
D040722.7 | TWP/SMET/C2 - connection and timing issues with new logger | twpsmet60sC2.b1 |
D040726.1 | TWP/SMET/C2 - Negative rainfall rates | twpsmet60sC2.b1 |
D040824.2 | TWP/SMET/C2 - Incorrect rainrate equation used. | twpsmet60sC2.b1 |
D050301.1 | TWP/SMET/C2 - Instrument failure | twpsmet60sC2.b1 |
D050322.2 | TWP/SMET/C2 - Upper wind sensor failure | twpsmet60sC2.b1 |
D050714.1 | TWP/SMET/C2 - RH failure | twpsmet60sC2.b1 |
D050920.4 | TWP/SMET/C2 - Instrument maintenance | twpsmet60sC2.b1 |
D050921.2 | TWP/SMET/C2 - ORG data incorrect | twpsmet60sC2.b1 |
D051005.6 | TWP/SMET/C2 - Tower down for calibration activities | twpsmet60sC2.b1 |
D060614.2 | TWP/SMET/C2 - Temp/RH probe failure | twpsmet60sC2.b1 |
D060818.2 | TWP/SMET/C2 - Reprocess: Barometric Data Changed from hPa to kPa | twpsmet60sC2.b1 |
D061011.3 | TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/10/2004 | 0000 | 04/24/2004 | 2303 |
Subject: | TWP/SMET/C2 - Wind Sensor failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Wind sensor #2 (lower one) failed. Wind direction showed little or no variation, unlike the colocated sensor #1. This caused lower wind speed values as the sensor was not rotating properly to orient itself parallel to the wind stream. The sensor was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/06/2004 | 2003 | 07/07/2004 | 0137 |
Subject: | TWP/SMET/C2 - All data missing due to logger change |
DataStreams: | twpsmet60sC2.b1 |
Description: | All data are missing at this site during this time period due to collection system, logger and enclosure change. Data resumed after change. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0138 | 07/07/2004 | 2018 |
Subject: | TWP/SMET/C2 - connection and timing issues with new logger |
DataStreams: | twpsmet60sC2.b1 |
Description: | Atmospheric pressure data are intermittent during this time period due to connection problems and program timing issues with new logger installation. Data resumed normal operations after this time period. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/21/1998 | 0311 | 07/06/2004 | 0138 |
Subject: | TWP/SMET/C2 - Negative rainfall rates |
DataStreams: | twpsmet60sC2.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: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0137 | 08/17/2004 | 2157 |
Subject: | TWP/SMET/C2 - Incorrect rainrate equation used. |
DataStreams: | twpsmet60sC2.b1 |
Description: | There are two different Optical Raingages in use at the TWP sites. The incorrect equation was used at this site. The incorrect equation is (25*(V^1.87)) - 0.15. The correct equation is (20*(V^2)) - 0.05. The correct equation was installed. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/2005 | 1955 | 03/03/2005 | 0430 |
Subject: | TWP/SMET/C2 - Instrument failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Upper wind sensor failed. Wind direction was reported at a near constant value of 69 degrees and was significantly different than the lower wind sensor's direction values. Sensor replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/09/2005 | 2300 | 04/17/2005 | 0332 |
Subject: | TWP/SMET/C2 - Upper wind sensor failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | After replacement on 03/03/2005 the upper wind sensor began reporting erroneous values again on 03/09/2005 becoming very apparent after 03/17/2005. Wind speed data appears reasonable but the wind direction data do not agree well with the lower wind sensor. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/10/2005 | 1900 | 07/14/2005 | 2226 |
Subject: | TWP/SMET/C2 - RH failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | The RH values were frequently over MAX value of 104% starting on 7/10/2005 through end of period. Sensor was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/21/2005 | 1625 | 09/21/2005 | 1815 |
Subject: | TWP/SMET/C2 - Instrument maintenance |
DataStreams: | twpsmet60sC2.b1 |
Description: | Instrument calibration and testing were taking place for brief periods. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2005 | 0809 | 09/19/2005 | 1902 |
Subject: | TWP/SMET/C2 - ORG data incorrect |
DataStreams: | twpsmet60sC2.b1 |
Description: | Data from the ORG was incorrect due to heavy condensation on the lens. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/19/2005 | 0200 | 09/19/2005 | 0330 |
Subject: | TWP/SMET/C2 - Tower down for calibration activities |
DataStreams: | twpsmet60sC2.b1 |
Description: | Tower lowered, wind vanes spun at different frequencies, and ORG tested with electronic rain. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/05/2006 | 2144 | 06/15/2006 | 0427 |
Subject: | TWP/SMET/C2 - Temp/RH probe failure |
DataStreams: | twpsmet60sC2.b1 |
Description: | Temperature/RH probe failed and was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/21/1998 | 0000 | 07/13/2006 | 2232 |
Subject: | TWP/SMET/C2 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | twpsmet60sC2.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: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/21/1998 | 0000 | 11/29/2006 | 2014 |
Subject: | TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC2.b1 |
Description: | A tipping bucket rain gauge was added to the TWP.C2 SMET suite of instruments on 20061129. Effective 20060926, two new variables (count and rain amount) were added to the end of the twpsmet60sC2.b1 datastream. Between 9/26 and 11/29, the data for these two variables are filled with zeros. Users should not use the data during this period as the zeros are not representative of the rain fall at the site. When reprocessing of this datastream occurs these variables will be added for the 19981021-20060926 and data from 19981021-20061129 will be filled with -9999 (missing). |
Measurements: | twpsmet60sC2.b1:
|