MODAPS PCR 14-029
| PCR Number | 14-029 |
|---|---|
| Date | 2014-11-14 |
| Initiator | Bill Ridgway |
| Abstract | To implement updates to PGE69 v6.1.9 and PGE56 v6.1.9. Daily histograms were added through template changes in PGE69 and a bug fix for production rules was made in PGE69 perl scripts. |
| Problem Statement | A bug was found in Aqua L3 forward processing where the Definition of Day production rules were not fully implemented. PGEs 69/56 were sometimes run without the required L2 products containing the first 3 hours of the following day.The cloud optical properties group wished to add 4 histogram groups and 8 joint histogram groups to the Daily (D3) product. They will NOT be added to the E3 and M3 products. New histograms are· COP_Phase_Cloudy_Histogram_Counts (Liquid, Ice, Undet. Phase)· COP_Phase_Partly_Cloudy_Histogram_Counts (Liquid, Ice, Undet. Phase) · COP_Phase_CloudMaskClear_Histogram_Counts · COP_Phase_RestoredToClear_Histogram_CountsAdd Re16 vs. Tau16 (Liq & Ice, Reg & PCL) Joint Histograms:· Cloud_Optical_Thickness_16_Liquid_JHisto_vs_Eff_Radius_16· Cloud_Optical_Thickness_16_Ice_JHisto_vs_Eff_Radius_16· Cloud_Optical_Thickness_16_PCL_Liquid_JHisto_vs_Eff_Radius_16· Cloud_Optical_Thickness_16_PCL_Ice_JHisto_vs_Eff_Radius_16Add Re37 vs. Tau37 (Liq & Ice, Reg & PCL) Joint Histograms:· Cloud_Optical_Thickness_37_Liquid_JHisto_vs_Eff_Radius_37· Cloud_Optical_Thickness_37_Ice_JHisto_vs_Eff_Radius_37· Cloud_Optical_Thickness_37_PCL_Liquid_JHisto_vs_Eff_Radius_37· Cloud_Optical_Thickness_37_PCL_Ice_JHisto_vs_Eff_Radius_37· Not all 27 hrs input are used, particularly in forward production. |
| Description of Change | Updates were made to PGE69 production rules to confirm the availability of all required L3 products before PGE69 is run. Additional histograms and joint histograms were added to the daily product. No previously existing SDS was changed. No change to E3 or M3 histograms. Only bug fix will have downstream implications. Update was made to PGE69 LoaderMudule to use 27-hr L2 input granules. |
| Products Affected | M[YO]D08_TL, M[YO]D08_D3 |
| Software Affected | PGE69 v6.1.9, PGE56 v6.1.9 |
| Processing String to Receive the Change | Terra Forward, Terra Reprocessing, Aqua Forward, Aqua Reprocessing |
| Downstream Product Effects | Bug Fix will impact M[YO]D08_E3, M[YO]D08_M3 products |
| Data Granules to be Used for Science Testing | Science testing produced sample products in AS1226. These products were reviewed and found to be correct.2010-059 |
| Justification | The additional histograms provide users with more detailed cloud characteristics and statistics. Bug fix was required in forward processing where next-day L2 products may not yet be available. |
| Effective Date for Implementation of Change | Required for all Terra C6 L3 processing. Required for all Aqua C6 L3 forward processing. Aqua re-processing may be scheduled in order to make all L3 products consistent. |
| Status | Major algorithm development and testing completed. Steve Platnick approved on 11/17/2014. Michael King approved on 11/18/2014. |
