The Global Precipitation Measurement (GPM) Microwave Imager (GMI) instrument is a multi-channel, conical-scanning, microwave radiometer serving an essential role in the near-global-coverage and frequent-revisit-time requirements of GPM. As a part of its contribution to GPM, NASA will provide a GMI instrument and a spacecraft for the Core observatory and is considering the acquisition of a second GMI instrument for placement aboard a constellation spacecraft with a payload and orbit to be defined. In March 2005, NASA chose Ball Aerospace & Technology Corporation to provide the GMI instrument(s). This paper describes the GMI instrument, the technical performance requirements, its role within the combined passive and active microwave measurements on the Core observatory, and the timeline for GMI development and acquisition.


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    Title :

    Global Precipitation Measurement (GPM) Microwave Imager (GMI) Instrument: Role, Performance, and Status


    Contributors:
    S. W. Bidwell (author) / G. M. Flaming (author) / J. F. Durning (author) / E. A. Smith (author)

    Publication date :

    2005


    Size :

    5 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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