| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D000608.7 | TWP/C2/SMET Wind Speeds | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| D000608.8 | TWP/C2/SMET Wind Speeds | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| D000608.9 | TWP/C2/SMET Winds Speeds | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| D000613.2 | TWP/C2/SMET Temperature spike | twpsmet60sC2.a1, twpsmet60sC2.b1 |
| D040726.1 | TWP/SMET/C2 - Negative rainfall rates | 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 |
|---|---|---|---|
| 12/24/1998 | 0000 | 01/08/1999 | 2100 |
| Subject: | TWP/C2/SMET Wind Speeds |
| DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| Description: | Beginning on December 24, Anemometer #1 (there are two anemometers on the SMET stand) occasionally reported wind speed values that were low relative to the other sensor. It is clear from the data that the low reading here is the anomalous one. |
| Measurements: | twpsmetC2.00:
twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/09/1999 | 2300 | 01/10/1999 | 0600 |
| Subject: | TWP/C2/SMET Wind Speeds |
| DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| Description: | Beginning on December 24, Anemometer #1 (there are two anemometers on the SMET stand) occasionally reported wind speed values that were low relative to the other sensor. It is clear from the data that the low reading here is the anomalous one. |
| Measurements: | twpsmetC2.00:
twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 01/14/1999 | 1430 | 01/14/1999 | 2100 |
| Subject: | TWP/C2/SMET Winds Speeds |
| DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1, twpsmetC2.00 |
| Description: | Beginning on December 24, Anemometer #1 (there are two anemometers on the SMET stand) occasionally reported wind speed values that were low relative to the other sensor. It is clear from the data that the low reading here is the anomalous one. |
| Measurements: | twpsmetC2.00:
twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 12/03/1998 | 2105 | 12/03/1999 | 2105 |
| Subject: | TWP/C2/SMET Temperature spike |
| DataStreams: | twpsmet60sC2.a1, twpsmet60sC2.b1 |
| Description: | There was a brief -4 C spike in the temperature at approximately 21.5 Z on December 3. This spike also showed up in the vapor pressure which is calculated from the temperature and relative humidity. |
| Measurements: | twpsmet60sC2.b1:
twpsmet60sC2.a1:
|
| 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 |
|---|---|---|---|
| 10/21/1998 | 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:
|