Precipitation Processing System

Date Last Updated
November 3rd, 2016
Document Description

1AGMI contains unpacked packet data from GMI science data from the GMI passive
microwave instrument flown on the GPM satellite. Swath S1 has 9 channels which are
similar to TRMM TMI (10V 10H 19V 19H 23V 37V 37H 89V 89H). Swath S2 has 4
channels similar to AMSU-B (166V 166H 183+/-3V 183+/-8V). Data for both swaths
is observed in the same revolution of the instrument. Swath S3 has ScienceDataHeader.
Swath S4 has full rotation for low freq channels (S1). Swath S5 has full rotation for high
freq channels (S2).

Date Last Updated
April 1st, 2016
Document Description

Level 1C (L1C) algorithms are a collection of algorithms that produce common calibrated brightness temperature products for the Global Precipitation Measurement (GPM) Core and Constellation satellites.

This document describes the GPM Level 1C algorithms. It consists of physical and mathematical bases for orbitization, satellite intercalibration, and quality control, as well as the software architecture and implementation for the Level 1C algorithms.

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