DQR ID | Subject | Data Streams Affected |
---|---|---|
D020109.2 | TWP/SMET/C2 - RH Sensor bad at Nauru | twpsmet60sC2.a1, twpsmet60sC2.b1 |
D020814.2 | TWP/SKYRAD/C2 - Reprocess: PIR identified as unshaded is really shaded | twpskyrad60sC2.b1 |
D030417.1 | TWP/SKYRAD/C2 - UVB Data questionable/incorrect due to uncontrolled sensor temperature | twpskyrad20sC2.a1, twpskyrad60sC2.a1, twpskyrad60sC2.b1 |
D030821.5 | TWP/SKYRAD/C2 - IRT incorrect min/delta values | twpskyrad60sC2.b1 |
D040726.1 | TWP/SMET/C2 - Negative rainfall rates | twpsmet60sC2.b1 |
D060818.2 | TWP/SMET/C2 - Reprocess: Barometric pressure units change | twpsmet60sC2.b1 |
D061011.3 | TWP/SMET/C2 - Reprocess: Tipping bucket rain gauge added | twpsmet60sC2.b1 |
D081022.5 | TWP/SMET/C2 - Wind Speed data contain offset due to induced voltage | twpsmet60sC2.b1 |
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 |
---|---|---|---|
09/17/2001 | 0300 | 04/30/2002 | 2359 |
Subject: | TWP/SKYRAD/C2 - Reprocess: PIR identified as unshaded is really shaded |
DataStreams: | twpskyrad60sC2.b1 |
Description: | On 17Sep01 the Global PIR was moved from the unshaded position on the Skyrad stand to the new 'shaded' spot on the new K&Z tracker. It is still using the same Logger channel as it did as an unshaded PIR even though it is now shaded. |
Measurements: | twpskyrad60sC2.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/20/1998 | 0000 | 03/03/2003 | 2359 |
Subject: | TWP/SKYRAD/C2 - UVB Data questionable/incorrect due to uncontrolled sensor temperature |
DataStreams: | twpskyrad20sC2.a1, twpskyrad60sC2.a1, twpskyrad60sC2.b1 |
Description: | The UVB was not temperature controlled to 25C as required to ensure accurate data. UVB data should ONLY be used after checking both the bit_data and twpskyrad20sC1.a1 uvb_temp or inst_down_uvb_temp. UVB data where the UVB temperature was outside the range of 24-26C should not be used. |
Measurements: | twpskyrad60sC2.a1:
twpskyrad60sC2.b1:
twpskyrad20sC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/01/2001 | 0005 | 03/03/2003 | 2102 |
Subject: | TWP/SKYRAD/C2 - IRT incorrect min/delta values |
DataStreams: | twpskyrad60sC2.b1 |
Description: | For field sky_ir_temp, the value of valid_min was incorrectly assigned to -49.7 C and no value of valid_delta was assigned. The actual values should be -60 and 50 C, respectively. |
Measurements: | twpskyrad60sC2.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 |
---|---|---|---|
10/21/1998 | 0000 | 07/06/2004 | 2359 |
Subject: | TWP/SMET/C2 - Reprocess: Barometric pressure units change |
DataStreams: | twpsmet60sC2.b1 |
Description: | Barometric pressure data during this time period is reported in hPa. After this time, the data have been converted to kPa 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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/01/1998 | 0000 | 02/23/2009 | 0410 |
Subject: | TWP/SMET/C2 - Wind Speed data contain offset due to induced voltage |
DataStreams: | twpsmet60sC2.b1 |
Description: | The marine model of the RM Young wind sensor needs twisted pair shielded cable. The manufacturer did not originally supply the pigtail with twisted pair shielded cable. Use of twisted pair shielded cable for the rest of the cable run to the logger was also not specified. This caused an induced voltage in the wind speed line from the wind direction excitation. The induced voltage varied from sensor to sensor and probably changed anytime the cable was replaced or parts of the wind sensor were repaired or replaced. The induced voltage has been seen to vary from 0.15 m/s to as much as 1.08 m/s. |
Measurements: | twpsmet60sC2.b1:
|