DQR ID | Subject | Data Streams Affected |
---|---|---|
D030415.10 | SGP/TWR/C1 - West-side 60m data incorrect due to low battery | sgp1twr60mC1.b1, sgp30twr60mC1.a1, sgp30twr60mC1.b1 |
D040212.4 | SGP/PGS/C1 - Reprocessing User Notes | sgppgsC1.b1 |
D040217.2 | SGP/CO2FLX/C1 - Reprocessing User Notes | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
D041015.2 | SGP/PGS/C1 - Reprocessing User Notes | sgppgsC1.b1 |
D041026.1 | SGP/CO2FLX/C1 - Reprocess: Units | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx60mC1.b1 |
D041103.1 | SGP/CO2FLX/C1 - Mean CO2 density incorrect, CO2 flux suspect | sgp30co2flx60mC1.b1 |
D050111.1 | SGP/PGS/C1 - Incorrect 60m Data | sgppgsC1.b1 |
D051118.1 | SGP/PGS/C1 - Suspicious 4m data | sgppgsC1.b1 |
D051118.2 | SGP/PGS/C1 - Suspicious 2m data | sgppgsC1.b1 |
D051118.3 | SGP/PGS/C1 - Suspicious 25m and 60m data | sgppgsC1.b1 |
D051118.4 | SGP/PGS/C1 - Updated files | sgppgsC1.b1 |
D990415.6 | SGP/TWR/C1 - Missing data | sgp1440twr60mC1.b1, sgp1twr60mC1.b1, sgp30twr60mC1.b1 |
D990607.1 | SGP/TWR/C1 - W Side of Tower lowered for maintenance | sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/21/2003 | 2140 | 02/22/2003 | 1846 |
02/22/2003 | 2140 | 02/26/2003 | 1604 |
Subject: | SGP/TWR/C1 - West-side 60m data incorrect due to low battery |
DataStreams: | sgp1twr60mC1.b1, sgp30twr60mC1.a1, sgp30twr60mC1.b1 |
Description: | A low battery voltage caused T, RH, and VP to be incorrect. Data may be missing from some of the second period because battery voltage dropped to zero at one point. |
Measurements: | sgp1twr60mC1.b1:
sgp30twr60mC1.a1:
sgp30twr60mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/11/2001 | 0000 | 02/12/2004 | 2359 |
Subject: | SGP/PGS/C1 - Reprocessing User Notes |
DataStreams: | sgppgsC1.b1 |
Description: | Time Variables - to make the PGS system more consistent with LBNL's other data streams, the variable 'yyyymmddhhmmss' was renamed 'yyyydddhhmmss'. Also, at the bottom of each file, variables 'yyyy','mon','hour','min' were added for those users who prefer to use these variables instead. The new 'time' variable (seconds since midnight of the start of file) was added to make files compatible with the new recommendations. Quality Control Flags - to prevent confusion, the quality control flags 'qc_co2ppm' and 'qc_sum_co2' were combined. The flag 'qc_sum_co2' was elliminated and 'qc_co2ppm' now performs range checking on 'co2ppm' variable as well as checking values of all dependencies' qc flags. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2002 | 0000 | 02/17/2004 | 0000 |
Subject: | SGP/CO2FLX/C1 - Reprocessing User Notes |
DataStreams: | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx4mmetC1.b1, sgp30co2flx60mC1.b1 |
Description: | Format Changes: To comply with archive standards, the name of the unlimited dimention variable in the cdf level b1 files was changed from 'record' to 'time'. This does not affect data quality. |
Measurements: | sgp30co2flx60mC1.b1:
sgp30co2flx4mC1.b1:
sgp30co2flx25mC1.b1:
sgp30co2flx4mmetC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/11/2001 | 1156 | 08/31/2004 | 2359 |
Subject: | SGP/PGS/C1 - Reprocessing User Notes |
DataStreams: | sgppgsC1.b1 |
Description: | Precise Gas System (pgs) daily b1 files should have a dimension of 480, corresponding to a measurement every 3 minutes. Previously submitted files had a dimension of 481, the last time step of each individual file being mistakenly repeated. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/18/2002 | 0000 | 10/12/2004 | 2359 |
Subject: | SGP/CO2FLX/C1 - Reprocess: Units |
DataStreams: | sgp30co2flx25mC1.b1, sgp30co2flx4mC1.b1, sgp30co2flx60mC1.b1 |
Description: | Mean CO2 density units are incorrectly labeled as umol m-3. Units should be labeled as mmol m-3. |
Measurements: | sgp30co2flx60mC1.b1:
sgp30co2flx4mC1.b1:
sgp30co2flx25mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/13/2004 | 1900 | 10/20/2004 | 1800 |
Subject: | SGP/CO2FLX/C1 - Mean CO2 density incorrect, CO2 flux suspect |
DataStreams: | sgp30co2flx60mC1.b1 |
Description: | A problem was identified with the calibration of the instrument over the time period October 12, 2004 to October 20, 2004. The offset of the instrument is known to be incorrect over this time frame, and a study of the gain of the instrument is underway. |
Measurements: | sgp30co2flx60mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/05/2005 | 0853 | 01/07/2005 | 2026 |
Subject: | SGP/PGS/C1 - Incorrect 60m Data |
DataStreams: | sgppgsC1.b1 |
Description: | Precise Gas system (PGS) data at 60m (channel 4) are incorrect. This problem is due to a freezing rain and ice storm that hit SGP Central facility on January 5, 2005. The 60m tower inlet was clogged with ice and consequently, no air was supplied to the PGS instrument. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/24/2004 | 0000 | 08/19/2005 | 0100 |
Subject: | SGP/PGS/C1 - Suspicious 4m data |
DataStreams: | sgppgsC1.b1 |
Description: | KNF pump for 4m height (channel 2) started to leak on November 24, 2004 and sampled air was consequently "contaminated" by indoor air. The pump was replaced on August 19, 2005. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/22/2004 | 0000 | 08/19/2005 | 0100 |
Subject: | SGP/PGS/C1 - Suspicious 2m data |
DataStreams: | sgppgsC1.b1 |
Description: | KNF pump for 2m height (channel 1) started to leak on July 22, 2004 and sampled air was consequently "contaminated" by indoor air. The pump was replaced on August 19, 2005. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/31/2005 | 0000 | 08/19/2005 | 0100 |
Subject: | SGP/PGS/C1 - Suspicious 25m and 60m data |
DataStreams: | sgppgsC1.b1 |
Description: | KNF pumps for 25m and 60m height (channel 3 and channel 4) started to leak on March 31, 2005 and sampled air was consequently "contaminated" by indoor air. The pumps were replaced on August 19, 2005. |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/11/2001 | 1156 | 10/31/2005 | 2359 |
Subject: | SGP/PGS/C1 - Updated files |
DataStreams: | sgppgsC1.b1 |
Description: | Dew point temperature (dpt) sensor (Vaisala DMT 142) was added to the system on May 24, 2005 to assess water trapping system efficiency. Consequently, variable "dpt" is filled with missing values (-999.99) prior measurements start date (May 24, 2005). |
Measurements: | sgppgsC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/1999 | 0859 | 03/19/1999 | 1939 |
02/03/2002 | 1439 | 02/10/2002 | 2223 |
03/09/2002 | 2002 | 03/11/2002 | 2101 |
02/22/2003 | 2251 | 02/26/2003 | 1946 |
Subject: | SGP/TWR/C1 - Missing data |
DataStreams: | sgp1440twr60mC1.b1, sgp1twr60mC1.b1, sgp30twr60mC1.b1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp1twr60mC1.b1:
sgp1440twr60mC1.b1:
sgp30twr60mC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/12/1999 | 1827 | 02/12/1999 | 1846 |
04/30/1999 | 1515 | 04/30/1999 | 1730 |
05/19/1999 | 1755 | 05/20/1999 | 1755 |
07/02/1999 | 1720 | 07/02/1999 | 1925 |
07/16/1999 | 1417 | 07/16/1999 | 1823 |
11/16/1999 | 1611 | 11/16/1999 | 1701 |
08/14/2000 | 1447 | 08/14/2000 | 2138 |
02/01/2001 | 2037 | 02/01/2001 | 2112 |
08/03/2001 | 1932 | 08/03/2001 | 2108 |
08/08/2001 | 1356 | 08/08/2001 | 1850 |
08/01/2002 | 1330 | 08/01/2002 | 2201 |
08/02/2002 | 1354 | 08/02/2002 | 1912 |
09/10/2002 | 1839 | 09/10/2002 | 1921 |
10/31/2002 | 1446 | 10/31/2002 | 1621 |
10/31/2002 | 2200 | 11/01/2002 | 1744 |
12/17/2002 | 1634 | 12/17/2002 | 2152 |
12/18/2002 | 1749 | 12/18/2002 | 2036 |
02/21/2003 | 1927 | 02/21/2003 | 2113 |
02/22/2003 | 1927 | 02/22/2003 | 2111 |
05/15/2003 | 1618 | 05/15/2003 | 2124 |
08/05/2003 | 1837 | 08/05/2003 | 1914 |
08/14/2003 | 1521 | 08/15/2003 | 1945 |
02/09/2004 | 1619 | 02/10/2004 | 1753 |
02/11/2004 | 1614 | 02/11/2004 | 2213 |
04/26/2004 | 1529 | 04/29/2004 | 1346 |
08/05/2004 | 1451 | 08/05/2004 | 1525 |
09/27/2004 | 1432 | 09/27/2004 | 2105 |
10/12/2004 | 1417 | 10/13/2004 | 1700 |
10/20/2004 | 1755 | 10/20/2004 | 1925 |
05/24/2005 | 1410 | 05/25/2005 | 2145 |
05/18/2006 | 1530 | 05/18/2006 | 2102 |
05/22/2006 | 2002 | 05/22/2006 | 2052 |
05/24/2006 | 1328 | 05/24/2006 | 1631 |
10/05/2006 | 1746 | 10/05/2006 | 2031 |
10/11/2006 | 1505 | 10/11/2006 | 2024 |
07/26/2007 | 1340 | 07/26/2007 | 1900 |
10/01/2007 | 1725 | 10/01/2007 | 1812 |
10/03/2007 | 1736 | 10/03/2007 | 1820 |
Subject: | SGP/TWR/C1 - W Side of Tower lowered for maintenance |
DataStreams: | sgp1440twr25mC1.b1, sgp1440twr60mC1.b1, sgp1twr25mC1.b1, sgp1twr60mC1.b1, sgp30twr25mC1.b1, sgp30twr60mC1.b1 |
Description: | The west side tower carriages were lowered for maintenance and/or data are offscale during routine maintenance. |
Measurements: | sgp1twr60mC1.b1:
sgp1twr25mC1.b1:
sgp30twr25mC1.b1:
sgp1440twr60mC1.b1:
sgp1440twr25mC1.b1:
sgp30twr60mC1.b1:
|