| DQR ID | Subject | Data Streams Affected | Data Quality Metric |
|---|---|---|---|
| D130725.1 | NSA/SURFSPECALB/C1 - Data processing problem | nsasurfspecalb1mlawerC1.c1 | Does not affect quality |
| D140923.2 | NSA/SURFSPECALB/C1 - Reprocessed and Corrected: Value Added Product error | nsasurfspecalb1mlawerC1.c1 | Does not affect quality |
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 04/07/1998 | 0000 | 11/25/2011 | 0000 | Does not affect quality |
| Subject: | NSA/SURFSPECALB/C1 - Data processing problem |
| DataStreams: | nsasurfspecalb1mlawerC1.c1 |
| Description: | An intermediate process, surfspecalb_transform, of the surfspecalb1mlawer VAP incorrectly treated its input datastream (intermediate datastream surfspecalbmfrsr.c0) as it had a bin alignment equal to the end of the bin, but it was actually the middle of the bin. The result was a shifting of the values with respect to time 10 seconds to the left. The impact on the primary measurement, spectral albedo, was considered to be less than the uncertainty of that measurement. The problem occurs for all measurements dimensioned by time. |
| Measurements: | nsasurfspecalb1mlawerC1.c1:
|
| Start Date | Start Time | End Date | End Time | Data Quality Metric |
|---|---|---|---|---|
| 04/07/1998 | 0000 | 06/10/2016 | 2359 | Does not affect quality |
| Subject: | NSA/SURFSPECALB/C1 - Reprocessed and Corrected: Value Added Product error |
| DataStreams: | nsasurfspecalb1mlawerC1.c1 |
| Description: | DATA REPROCESSED and CORRECTED: These data were reprocessed to fix the minor problem caused by the configuration. The configuration files needed to perform the transformations correctly were not released with the updated software. As a result the data is not as accurate as it could be because the alignment of the averaged data was assumed to be center of the averaging bin, but some instances exist where the averaging alignment was not at the center of the bin. This data product averages the input over a five minute period and then an additional transformation is applied to a longer time interval later in the process. The impact on this data is minor and expected to be under the uncertainty associated with the methods applied. This processing difference should not affect the use of the data. The data were archived in August 2016. Please retrieve the reprocessed data for use in your analysis. You may find these data using the ARM Discovery tool at the following link: http://www.archive.arm.gov/discovery/#v/results/s/finst::surfspecalb/fsite::nsa/ffac::nsa.C1 ORIGINAL DQR CATEGORY: Transparent (Does not affect quality) REPROCESSED and CORRECTED DATA ARCHIVED:2016-08 REPROCESS IDENTIFICATION NUMBER: RID 1234 --------------------------------------------------- --- ORIGINAL DQR DESCRIPTION --- --------------------------------------------------- The configuration files needed to perform the transformations correctly were not released with the updated software. As a result the data is not as accurate as it could be because the alignment of the averaged data was assumed to be center of the averaging bin, but some instances exist where the averaging alignment was not at the center of the bin. This data product averages the input over a five minute period and then an additional transformation is applied to a longer time interval later in the process. The impact on this data is minor and expected to be under the uncertainty associated with the methods applied. This processing difference should not affect the use of the data. |
| Measurements: | nsasurfspecalb1mlawerC1.c1:
|