DQR ID | Subject | Data Streams Affected |
---|---|---|
D000504.5 | TWP/SMET/C1 - Wind Direction alignment method | twpsmet60sC1.00, twpsmet60sC1.a1, twpsmet60sC1.b1 |
D000621.1 | TWP/SMET/C1 - Incorrect calibration for ARCS1 Wind speed | twpsmet60sC1.00, twpsmet60sC1.a1, twpsmet60sC1.b1, twpsmetC1.00 |
D011211.3 | TWP/SMET/C1 - precip, wind, temperature | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D020214.9 | TWP/SMET/C1 - Sensor replacement | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D020329.8 | TWP/SMET/C1/C2 - Switch to new Data Header Formats not timely | twpsmet60sC1.a1, twpsmet60sC1.b1, twpsmet60sC2.a1, twpsmet60sC2.b1 |
D020620.61 | TWP/C1 - Incorrect elevation reported in Manus Data | twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1, twpsmet60sC1.a1, twpsmet60sC1.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 |
D031215.3 | TWP/SMET/C1 - Tower Lowered for Cal Activities | twpsmet60sC1.b1, twpsmetC1.00 |
D040813.11 | TWP/SMET/C1 - RESET14 activities | twpsmet60sC1.a1, twpsmet60sC1.b1 |
D050421.6 | TWP/SMET/C1 - Negative rainfall rates | twpsmet60sC1.b1 |
D060817.3 | TWP/SMET/C1 - Reprocess: Barometric Data Changed from hPa to kPa | twpsmet60sC1.b1 |
D061011.2 | TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/25/1999 | 0450 | 04/02/2000 | 0000 |
Subject: | TWP/SMET/C1 - Wind Direction alignment method |
DataStreams: | twpsmet60sC1.00, twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | During RESET10 we discovered a problem with wind direction from WIND1 (upper anemometer). During RESET8, WIND1 was corrected by rotating the alignment ring instead of the anemometer. This resulted in a better agreement between the 2 anemometers, but is not the correct way to align an anemometer. The alignment ring was readjusted for true north and the anemometer reset in the proper slot (the original problem). |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC1.00:
twpsmet60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/23/1999 | 0000 | 04/01/2000 | 2359 |
Subject: | TWP/SMET/C1 - Incorrect calibration for ARCS1 Wind speed |
DataStreams: | twpsmet60sC1.00, twpsmet60sC1.a1, twpsmet60sC1.b1, twpsmetC1.00 |
Description: | On 23 OCT 99, during Reset 8, an incorrect slope of was entered for the upper, windspeed1, wind speed sensor resulting in a 1% overestimate of the wind speed. The correct calibration was entered on 1 APR 2000 during RESET 10. |
Measurements: | twpsmet60sC1.b1:
twpsmetC1.00:
twpsmet60sC1.00:
twpsmet60sC1.a1:
|
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 |
---|---|---|---|
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 |
---|---|---|---|
03/31/2001 | 2359 | 04/01/2001 | 0020 |
Subject: | TWP/SMET/C1/C2 - Switch to new Data Header Formats not timely |
DataStreams: | twpsmet60sC1.a1, twpsmet60sC1.b1, twpsmet60sC2.a1, twpsmet60sC2.b1 |
Description: | On April 1, 2001 at 00:00:00 new data header with consistent variable naming conventions, etc were to be used for all sites, all data streams. At the TWP sites the time of the movement to the new convention did not occur precisely at 00:00:00. The following data files contain between 40 seconds and 20 minutes of data from 4/1/02 in the old format. The delayed format change did not affect data quality in any way. twpsmet60sC1.a1.20010401.000001.cdf twpsmet60sC1.b1.20010401.000001.cdf twpsmet60sC2.a1.20010401.000000.cdf twpsmet60sC2.b1.20010401.000000.cdf |
Measurements: | twpsmet60sC1.b1:
twpsmet60sC2.b1:
twpsmet60sC1.a1:
twpsmet60sC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/10/1996 | 0001 | 06/22/2000 | 2359 |
Subject: | TWP/C1 - Incorrect elevation reported in Manus Data |
DataStreams: | twpgndrad20sC1.a1, twpgndrad60sC1.a1, twpgndrad60sC1.b1, twpsmet60sC1.a1, twpsmet60sC1.b1 |
Description: | (From Bill Clements) We have been using 6m MSL as the station elevation of Momote (Manus). This was based on information posted near the station barometer in the Momote Weather Service Office. It turns out that the official WMO station elevation for Momote is 4m MSL and the upper air elevation is 5m MSL. All Manus instruments except the sonde station are at 4m MSL. The sonde launching station is at 5m MSL. |
Measurements: | twpgndrad20sC1.a1:
twpgndrad60sC1.b1:
twpsmet60sC1.b1:
twpgndrad60sC1.a1:
twpsmet60sC1.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 |
---|---|---|---|
12/01/2003 | 2300 | 12/02/2003 | 0300 |
Subject: | TWP/SMET/C1 - Tower Lowered for Cal Activities |
DataStreams: | twpsmet60sC1.b1, twpsmetC1.00 |
Description: | Tower lowered for instrument calibration |
Measurements: | twpsmet60sC1.b1:
twpsmetC1.00:
|
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 |
---|---|---|---|
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 |
---|---|---|---|
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 |
---|---|---|---|
10/09/1996 | 0000 | 10/17/2006 | 0000 |
Subject: | TWP/SMET/C1 - Reprocess: Tipping bucket rain gauge added |
DataStreams: | twpsmet60sC1.b1 |
Description: | A tipping bucket rain gauge was added to the TWP.C1 SMET suite of instruments on 20061017. Effective 20060926, two new variables (count and rain amount) were added to the end of the twpsmet60sC1.b1 datastream. Between 9/26 and 10/17, 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 19961009-20060926 and data from 19961009-20061017 will be filled with -9999 (missing). |
Measurements: | twpsmet60sC1.b1:
|