| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D040212.4 | SGP/PGS/C1 - Reprocessing User Notes | sgppgsC1.b1 |
| D041015.2 | SGP/PGS/C1 - Reprocessing User Notes | sgppgsC1.b1 |
| D051118.1 | SGP/PGS/C1 - Suspicious 4m data | sgppgsC1.b1 |
| D051118.2 | SGP/PGS/C1 - Suspicious 2m data | sgppgsC1.b1 |
| D051118.4 | SGP/PGS/C1 - Updated files | sgppgsC1.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 |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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:
|