MODAPS PCR 24-005

PCR Number 24-005
Date 2024-10-02
Initiator Sudipta Sarkar on behalf of Yujie Wang and P.I. Alexei Lyapustin
Abstract PGE113 6.1.25

Only major changes have been shown here for brevity:

  1. Fixed a bug in MODIS MAIAC C61 code, which will affect snow fraction output.
  2. Changed MAIAC_File.cpp
Problem Statement The PGE113 was not showing full retrieval of snow fraction/snow grainsize in C61.
Description of Change This is a bug fix to solve the incomplete coverage issue of snow fraction/snow grainsize output in MCD19A3D.
Products Affected Daily C61 L3 Tiled MAIAC products, MCD19A1, MCD19A2, and MCD19A3D
Software Affected PGE113 6.1.25
Processing String to Receive the Change Terra and Aqua Forward Processing. NRT
Downstream Product Effects None.
Data Granules to be Used for Science Testing The PGE113 LM change was successfully tested through selected tiles test, in AS 1989 and approved by the science team.
Justification The PGE113 was not showing full retrieval of snow fraction/snow grainsize in C61.
Effective Date for Implementation of Change The change to the PGE113 was put in C61 forward processing in STD and NRT streams, starting October 2 2024, onwards.
Status Sadashiva Devadiga 10/09/2024, Sudipta Sarkar implemented on 10/02/2024.