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Science Formulation of Global Precipitation Mission (GPM)In late 2001, the Global Precipitation Measurement (GPM) mission was approved as a new start by the National Aeronautics and Space Administration (NASA). The new mission, which is now in its formulation phase, is motivated by a number of scientific questions that are posed over a range of space and time scales that generally fall within the discipline of the global water and energy cycle (GWEC), although not restricted to that branch of research. Recognizing that satellite rainfall datasets are now a foremost tool for understanding global climate variability out to decadal scales and beyond, for improving weather forecasting, and for producing better predictions of hydrometeorological processes including short-term hazardous flooding and seasonal fresh water resources assessment, a comprehensive and internationally sanctioned global measuring strategy has led to the GPM mission. The GPM mission plans to expand the scope of rainfall measurement through use of a multi-member satellite constellation that will be contributed by a number of world nations. This talk overviews the GPM scientific research program that has been fostered within NASA, then focuses on scientific progress that is being made in various areas in the course of the mission formulation phase that are of interest to the Natural Hazards scientific community. This latter part of the talk addresses research issues that have become central to the GPM science implementation plan concerning the rate of the global water cycling, cloud macrophysical-microphysical processes of flood-producing storms, and the general improvement in measuring precipitation at the fundamental microphysical level.
Document ID
20020060740
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Smith, Eric A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Mehta, Amita
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Shepherd, Marshall
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Starr, David O.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: EGS XXVII General Assembly
Location: Nice
Country: France
Start Date: April 21, 2002
End Date: April 26, 2002
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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