A concept is presented for a microwave radiometer in space to measure soil moisture and ocean salinity as part of an 'Earth Probe' mission. The measurements could be made using an array of stick antennas. The L-band channel (1.4 GHz) would be the primary channel for determining soil moisture, with the S-band (2.65-GHz) and C-band (5.0-GHz) channels providing ancillary information to help correct for the effects of the vegetation canopy and possibly to estimate a moisture profile. A preliminary study indicates that an orbit at 450 km would provide coverage of better than 95 percent of the earth every 3 days. A 10-km resolution cell (at nadir) requires stick antennas about 9.5-m long at L-band. The S-band and C-band sticks would be substantially shorter (5 m and 2.7 m, respectively).


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    Titel :

    A synthetic aperture microwave radiometer to measure soil moisture and ocean salinity from space


    Beteiligte:
    Le Vine, D. M. (Autor:in) / Hilliard, L. M. (Autor:in) / Swift, C. T. (Autor:in) / Ruf, C. S. (Autor:in) / Garrett, L. B. (Autor:in)

    Kongress:

    IGARSS ''91: Annual International Geoscience and Remote Sensing Symposium ; 1991 ; Espoo, Finland


    Erscheinungsdatum :

    1991-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch






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