MODAPS PCR 15-019
| PCR Number | 15-019 |
|---|---|
| Date | 2015-05-15 |
| Initiator | Jim Ray |
| Abstract | PGE11 v6.3.14. Updated list of subsets to include all L1B subset sites. Updated the PGE production rule to use the polarization corrected L1B as input for every run of the PGE11. |
| Problem Statement | Subsets generated by the PGE missed some subsets generated by the L1B. Didn't use polarization corrected L1B while processing days from early period (2000055 - 2003192) of Terra and Aqua mission. |
| Description of Change | Updated the list of subsets to include all of the L1B subset sites. Updated the production rule to use polarization corrected L1B as input for every run of the PGE. |
| Products Affected | MxD09, MxD09CMG, MxD13*, MxD15A*, MxD17A*, and MCD43* |
| Software Affected | PGE11 v6.3.14 |
| Processing String to Receive the Change | Terra Reprocessing and Aqua Reprocessing |
| Downstream Product Effects | None. |
| Data Granules to be Used for Science Testing | Process one global day on the MODAPS test system and use the initial 16-day period of operational C6 reprocessing as the test data before approving for continuation of the reprocessing.2010-059 |
| Justification | Science teams need product subsets to be generated at MODAPS and pushed to their facility for use in their validation work. Science Teams do not have enough resources to run the subset at their local computational facilities. Use of polarization corrected L1B data as input to surface reflectance from day 2003193 and onwards introduced a temporal inconsistency in the time series of surface reflectance product. Downstream products using the surface reflectance as input is expected exhibit similar trending in the product time series. Need to reprocess surface reflectance and downstream (VI, LAI-FPAR, GPP) from the period 2000055 - 2003192 with polarization correction applied to the C6 L1B. |
| Effective Date for Implementation of Change | Completed. |
| Status | Major algorithm development completed. Sadashiva Devadiga approved on 05/15/2015. Michael King approved on 05/26/2015. |
