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Advanced Passive Microwave Radiometer Technology for GPM MissionAn interferometer-type passive microwave radiometer based on MMIC receiver technology and a thinned array antenna design is being developed under the Instrument Incubator Program (TIP) on a project entitled the Lightweight Rainfall Radiometer (LRR). The prototype single channel aircraft instrument will be ready for first testing in 2nd quarter 2003, for deployment on the NASA DC-8 aircraft and in a ground configuration manner; this version measures at 10.7 GHz in a crosstrack imaging mode. The design for a two (2) frequency preliminary space flight model at 19 and 35 GHz (also in crosstrack imaging mode) has also been completed, in which the design features would enable it to fly in a bore-sighted configuration with a new dual-frequency space radar (DPR) under development at the Communications Research Laboratory (CRL) in Tokyo, Japan. The DPR will be flown as one of two primary instruments on the Global Precipitation Measurement (GPM) mission's core satellite in the 2007 time frame. The dual frequency space flight design of the ERR matches the APR frequencies and will be proposed as an ancillary instrument on the GPM core satellite to advance space-based precipitation measurement by enabling better microphysical characterization and coincident volume data gathering for exercising combined algorithm techniques which make use of both radar backscatter and radiometer attenuation information to constrain rainrate solutions within a physical algorithm context. This talk will discuss the design features, performance capabilities, applications plans, and conical/polarametric imaging possibilities for the LRR, as well as a brief summary of the project status and schedule.
Document ID
20020083217
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Smith, Eric A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Im, Eastwood
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Kummerow, Christian
(Colorado State Univ. Fort Collins, CO United States)
Principe, Caleb
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Ruf, Christoper
(Michigan Univ. Ann Arbor, MI United States)
Wilheit, Thomas
(Texas A&M Univ. College Station, TX United States)
Starr, David
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: Earth Science Technology Conference 2002 (ESTC-2002)
Location: Pasadena, CA
Country: United States
Start Date: June 11, 2002
End Date: June 13, 2002
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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