MODAPS PCR 22-011

PCR Number 22-011
Date 2022-08-30
Initiator Carol Davidson & Praveen Noojipady on behalf of Alexei Lyapustin
Abstract PGE113 6.1.21
Code revision to populate InputPointer accurately when single instrument dataset is used as input.
Problem Statement The PGE113 output INPUTPOINTER metadata field was incomplete when only one sensor had inputs (either Aqua or Terra was not available).
Description of Change Updated meta.cpp by adding intermediate input pointer arrays to just store these non-empty input filenames from the original input pointer arrays and used the intermediate input pointer arrays to write out INPUTPOINTER.
Products Affected Daily C61 L3 Tiled MAIAC products, MCD19A1, MCD19A2, and MCD19A3
Software Affected PGE113 6.1.21
Processing String to Receive the Change Terra and Aqua Forward Processing. Terra and Aqua Reprocessing. NRT
Downstream Product Effects None.
Data Granules to be Used for Science Testing The PGE113 INPUTPOINTER correction was successfully tested through MODAPS ops instance test in AS1914.
Justification The revision was needed in order to have accurate and complete metadata in the MAIAC outputs during all processing cases.
Effective Date for Implementation of Change The changes to the PGE113 was put in to resume the MAIAC reprocessing, starting PGE_StartTime of 2003-01-01 on calendar day 8/22/22.
Status Major algorithm development completed. Sadashiva Devadiga approved 09/08/2022. Sudipta Sarkar approved 09/08/2022.