MODAPS PCR 07-001
| PCR Number | 07-001 |
|---|---|
| Date | 2006-12-26 |
| Initiator | Jim Ray |
| Abstract | Fix to flag dead and noisy detectors in band 5 and 6 of Aqua. |
| Problem Statement | None of dead detectors in band 5 and 6 were being flagged for Aqua and the detector 3 in band 5 of Terra was being flagged as bad. Bug in cloud shadow algorithm failed to check for fill values in band 31. |
| Description of Change | This patch will flag dead detectors in band 5 and 6 of Aqua correctly as flagged in the metadata of L1B. Detector 3 in band 5 of Terra will be flagged as noisy using a separate QA flag in the 500m Band quality SDS. The cloud shadow algorithm will check for the fill values in band31, resulting in minor difference in cloud shadow for these pixels only. |
| Products Affected | L2 Land Surface Reflectance (MYD09) |
| Software Affected | PGE11 |
| Processing String to Receive the Change | Aqua Forward, Aqua Reprocessing |
| Downstream Product Effects | Downstream products using band 5 of Terra and band 5 and 6 of Aqua. Cloud shadow effect is minimal. |
| Data Granules to be Used for Science Testing | 3-month 1-tile (h20v11) time series starting on data day 2003-185. |
| Justification | This change to the code is necessary for fixing the dead detector and bad detector issue. Improve the quality of band 5 and 6. |
| Effective Date for Implementation of Change | Data day 2001-184 for C5 Terra Reprocessing. Data day 2007-001 for C5 Terra and Aqua Forward Processing. |
| Status | PI approved. Sadashiva Devadiga approved for Land, Vincent Salomonsom approved on 01/12/07. |
