DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D040217.2 | SGP/CO2FLX/C1 - Reprocessing User Notes | sgp30co2flx4mC1.b1 | Does not affect quality |
D041026.1 | SGP/CO2FLX/C1 - Reprocess: Units | sgp30co2flx4mC1.b1 | Does not affect quality |
D060107.1 | SGP/CO2FLX/C1 - Reprocess: calibration error | sgp30co2flx4mC1.b1 | Suspect |
D070803.2 | SGP/CO2FLX/C1 - Disturbance around site | sgp30co2flx4mC1.b1 | Incorrect |
D071011.2 | SGP/CO2FLX/C1 - Reprocessing Notice (RID 432) | sgp30co2flx4mC1.b1 | Does not affect quality |
D081202.1 | SGP/CO2FLX/C1 - Reprocessed: Recalibration | sgp30co2flx4mC1.b1 | Does not affect quality |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/18/2002 | 0000 | 02/17/2004 | 0000 | Does not affect quality |
Subject: | SGP/CO2FLX/C1 - Reprocessing User Notes |
DataStreams: | sgp30co2flx4mC1.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: | sgp30co2flx4mC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/18/2002 | 0000 | 10/12/2004 | 2359 | Does not affect quality |
Subject: | SGP/CO2FLX/C1 - Reprocess: Units |
DataStreams: | sgp30co2flx4mC1.b1 |
Description: | Mean CO2 density units are incorrectly labeled as umol m-3. Units should be labeled as mmol m-3. |
Measurements: | sgp30co2flx4mC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/27/2005 | 0000 | 01/06/2006 | 2359 | Suspect |
Subject: | SGP/CO2FLX/C1 - Reprocess: calibration error |
DataStreams: | sgp30co2flx4mC1.b1 |
Description: | A problem was identified with the calibration of the instrument performed on May 27, 2005. A study to correct this bad calibration is underway. |
Measurements: | sgp30co2flx4mC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
07/24/2007 | 1300 | 07/26/2007 | 2359 | Incorrect |
Subject: | SGP/CO2FLX/C1 - Disturbance around site |
DataStreams: | sgp30co2flx4mC1.b1 |
Description: | A bulldozer used to excavate the SGP Tower anchors was right around (within 10 feet) our systems. |
Measurements: | sgp30co2flx4mC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/17/2003 | 0000 | 10/11/2007 | 0000 | Does not affect quality |
Subject: | SGP/CO2FLX/C1 - Reprocessing Notice (RID 432) |
DataStreams: | sgp30co2flx4mC1.b1 |
Description: | See below for details of reprocessing that was completed on 20141217. Original DQR category: 5 (Transparent - Does not affect quality). ----------------------------------------------------------- The height of the 4m instruments is 4.8 m and not 4.65 m as shown in b1 datastream |
Measurements: | sgp30co2flx4mC1.b1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/26/2005 | 0000 | 01/11/2006 | 2359 | Does not affect quality |
Subject: | SGP/CO2FLX/C1 - Reprocessed: Recalibration |
DataStreams: | sgp30co2flx4mC1.b1 |
Description: | The 4m CO2 flux system was calibrated on May 25, 2005. After the calibration was performed, calibration coefficients used to measure CO2 density were not updated. This added an OFFSET to the CO2 density measurements. The data have been reprocessed to address the offset. The reprocessed data were archived in December 2008. Please retrieve the updated files for use in your analysis. |
Measurements: | sgp30co2flx4mC1.b1:
|