DQR ID | Subject | Data Streams Affected |
---|---|---|
D011211.3 | TWP/SMET/C1 - precip, wind, temperature | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D020109.2 | TWP/SMET/C2 - RH Sensor bad at Nauru | twpsmet60sC2.a1, twpsmet60sC2.b1 |
D020214.9 | TWP/SMET/C1 - Sensor replacement | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D030131.1 | TWP/SMET/C2 - Temperature Sensor Failed, Data Missing | twpsmet60sC2.a1, twpsmet60sC2.b1 |
D030227.3 | TWP/SMET/C1 - Reprocess: Miscalibrated windspeed2 data | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D030317.1 | TWP/SMET/C1 - Reprocess: Wind Speed #2 incorrect | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D030501.5 | TWP/SMET/C2 - WIND SENSOR #1 (HIGHER) INOPERATIVE | twpsmet60sC2.b1 |
D031215.3 | TWP/SMET/C1 - Tower Lowered for Cal Activities | twpsmetC1.00, twpsmet60sC1.b1 |
D040421.1 | TWP/SMET/C2 - Wind Sensor failure | twpsmet60sC2.b1 |
D040428.1 | TWP/SMET/C1 - Poor Performing Sensor | twpsmet60sC1.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 |
D040813.11 | TWP/SMET/C1 - RESET14 activities | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D040824.2 | TWP/SMET/C2 - Incorrect rainrate equation used. | twpsmet60sC2.b1 |
D040824.3 | TWP/SMET/C1 - Incorrect rainrate equation used | twpsmet60sC1.b1 |
D050301.1 | TWP/SMET/C2 - Instrument failure | twpsmet60sC2.b1 |
D050322.2 | TWP/SMET/C2 - Upper wind sensor failure | twpsmet60sC2.b1 |
D050421.6 | TWP/SMET/C1 - Negative rainfall rates | twpsmet60sC1.b1 |
D050601.4 | TWP/SMET/C1 - Reprocess: Incorrect Units Listed for Vapor Pressure | twpsmet60sC1.b1 |
D050601.5 | TWP/SMET/C2 - Reprocess: Incorrect Units Listed for Vapor Pressure | 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 |
D060817.3 | TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPa | twpsmet60sC1.b1 |
D060818.2 | TWP/SMET/C2 - Reprocess: Barometric Data Changed from hPa to kPa | twpsmet60sC2.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/2001 | 0445 | 10/23/2001 | 0645 |
Subject: | TWP/SMET/C1 - precip, wind, temperature |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | On 10/23/01 from 4:45 to 6:45 precipitation, wind, and temperature measurements were directly affected by RESET14 visit activities. |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/16/2001 | 0300 | 01/03/2002 | 0841 |
Subject: | TWP/SMET/C2 - RH Sensor bad at Nauru |
DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1 |
Description: | RH sensor bad from 16 Dec 2001 03 GMT to 3 Jan 2002 |
Measurements: | twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/24/2001 | 0040 | 10/24/2001 | 0100 |
Subject: | TWP/SMET/C1 - Sensor replacement |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | On 10/24/01 from 00:40 to 01:00 the T/RH probe was being replaced. |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/24/2003 | 0100 | 01/30/2003 | 0500 |
Subject: | TWP/SMET/C2 - Temperature Sensor Failed, Data Missing |
DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1 |
Description: | The T/RH sensor on Nauru failed and was replaced (only the temperature sensor failed). |
Measurements: | twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/15/2002 | 0000 | 02/27/2003 | 1100 |
Subject: | TWP/SMET/C1 - Reprocess: Miscalibrated windspeed2 data |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | A replacement anemometer (WSP2) was installed but the new anemometer calibration coefficients were not put into the logger. The multiplication factor was 0.09708 when it should have been 0.09763 (very small difference)the offset was 0.36 when it should have been 0.3 (a difference 0.06 m/s). |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/27/2003 | 1750 | 03/03/2003 | 1900 |
Subject: | TWP/SMET/C1 - Reprocess: Wind Speed #2 incorrect |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | Wind Speed #2 sensor was reporting values 10 times above the actual value. During an update to the logger configuration file the calibration multiplier was incorrectly entered. The multiplier inserted was .97630 when it should have been .09763. This caused the readings from this sensor to be incorrect. |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/12/2003 | 1000 | 04/24/2003 | 0020 |
Subject: | TWP/SMET/C2 - WIND SENSOR #1 (HIGHER) INOPERATIVE |
DataStreams: | twpsmet60sC2.b1 |
Description: | Wind speed sensor #1 (higher sensor) failed. Wind speeds were reported as 0 m/s and wind direction data was not in agreement with wind sensor #2. Anemometer was replaced. |
Measurements: | twpsmet60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/01/2003 | 2300 | 12/02/2003 | 0300 |
Subject: | TWP/SMET/C1 - Tower Lowered for Cal Activities |
DataStreams: | twpsmetC1.00, twpsmet60sC1.b1 |
Description: | Tower lowered for instrument calibration |
Measurements: | twpsmet60sC1.b1:
twpsmetC1.00:
|
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 |
---|---|---|---|
04/23/2004 | 0000 | 01/19/2005 | 1530 |
Subject: | TWP/SMET/C1 - Poor Performing Sensor |
DataStreams: | twpsmet60sC1.b1 |
Description: | On 4/23/2004 condensation was found inside the target area of the ORG lens. A spare was sent and installed but did not solve the problem of high background voltage values causing rainrate values to be recorded during no rainfall. Values range anywhere from 0.06 to 0.12 mm/hr. A new Optical Rain Gage was installed on 01/19/2005 @ 13:30 GMT alleviating the high background voltage values that lead to consistent rainfall rates of around 0.11 to 0.15 mm/hr on a consistent basis. The formula used to calculate rainfall rates from the new Optical Rain Gage is: RR (mm/hr) = 25(V^1.87) - 0.15. Older model formula = 20(V^2) - 0.05 The two formulas result in comparable data. |
Measurements: | twpsmet60sC1.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 |
---|---|---|---|
10/09/2001 | 0000 | 10/26/2001 | 2359 |
Subject: | TWP/SMET/C1 - RESET14 activities |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | RESET14 activities may have affected data in subtle ways during this period. |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.a1:
|
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 |
---|---|---|---|
08/03/2004 | 0307 | 08/17/2004 | 2138 |
Subject: | TWP/SMET/C1 - Incorrect rainrate equation used |
DataStreams: | twpsmet60sC1.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: | twpsmet60sC1.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 |
---|---|---|---|
10/09/1996 | 0000 | 03/09/2004 | 2243 |
Subject: | TWP/SMET/C1 - Negative rainfall rates |
DataStreams: | twpsmet60sC1.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. New loggers were installed 03/09/2004 @ 2243 GMT. |
Measurements: | twpsmet60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/03/2004 | 0000 | 05/19/2005 | 2359 |
Subject: | TWP/SMET/C1 - Reprocess: Incorrect Units Listed for Vapor Pressure |
DataStreams: | twpsmet60sC1.b1 |
Description: | The netcdf file header incorrectly listed the units of Vapor Pressure as hPa when in fact they were kPa. |
Measurements: | twpsmet60sC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/07/2004 | 0000 | 05/19/2005 | 2359 |
Subject: | TWP/SMET/C2 - Reprocess: Incorrect Units Listed for Vapor Pressure |
DataStreams: | twpsmet60sC2.b1 |
Description: | The netcdf header file incorrectly listed the units of Vapor Pressure as hPa when in fact they were kPa. |
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 |
---|---|---|---|
10/09/1996 | 0000 | 07/13/2006 | 2225 |
Subject: | TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPa |
DataStreams: | twpsmet60sC1.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: | twpsmet60sC1.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:
|