Soil moisture retrieval using the Danish L- & C-band polarimetric SAR

JI JIANKANG, Peter van der Keur, Anton Thomsen, Henning Skriver

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    Abstract

    Danish polarimetric SAR data have been applied to estimate soil moisture (SM). The preliminary results evaluated with the L- and C-band SAR data acquired at the Danish test site Foulum during a number of missions in 1994 and 1995 are presented. In situ data have been collected during the SAR missions and the variations of SM at field scale are discussed. The integral equation method (IEM), the Dubois empirical model and the Oh polarized-ratio model have been used as algorithms to inverse SM from polarimetric SAR data under near bare field conditions. Comparisons between the inversions and the in situ measured data showed that the Dubois empirical model gave the best results for inversion of SM. The standard deviations between the inversed and the measured data at C-band are s(mu)=6.1% for SM and sσ=0.37 cm for soil surface rms height, respectively. C-band data are better than L-band data for estimation of surface roughness
    Original languageEnglish
    Title of host publicationProceedings of the International Geoscience and Remote Sensing Symposium : Remote Sensing for a Sustainable Future
    PublisherIEEE
    Publication date1996
    Pages1300-1302
    ISBN (Print)07-80-33068-4
    DOIs
    Publication statusPublished - 1996
    Event1996 International Geoscience and Remote Sensing Symposium: Remote Sensing for a Sustainable Future - Lincoln, NE, United States
    Duration: 21 May 199626 May 1996
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=3772

    Conference

    Conference1996 International Geoscience and Remote Sensing Symposium
    CountryUnited States
    CityLincoln, NE
    Period21/05/199626/05/1996
    Internet address

    Bibliographical note

    Copyright: 1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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