GPM Science Implementation Plan

Gail Skofronick-Jackson
Walter A. Petersen
Arthur Y. Hou
Erich F. Stocher
Jack Kaye
Ramesh Kakar
Document Description

The Global Precipitation Measurement Mission is an international space network of satellites designed to provide the next generation precipitation observations around the world every 2 to 4 hours. It is a science mission with integrated applications goals. The GPM concept centers on the deployment of a Core Spacecraft carrying advanced active and passive microwave sensors to function as a physics observatory to gain physical insights into precipitating systems and to serve as a reference standard to improve global precipitation estimates from a constellation of research and operational microwave sensors capable of precipitation measurements. The GPM constellation buildup follows a progressive strategy to take advantage of partner satellites that carry microwave sensors such as a conical-scanning imager or a cross-track-scanning sounder.