Electromagnetic characterization of soil-litter media – Application to the simulation of the microwave emissivity of the ground surface in forests

F. Demontoux, B. Le Crom, G. Ruffié, J.P. Wigneron, J.P. Grant

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    Abstract

    In order to improve our knowledge of the emitted signal of forests at L-band (1.4 GHz) we focused this study on permittivity measurements of heterogenic natural media such as soil or litter consisting of plant debris and organic matter. This study was done in the context of the upcoming SMOS (Soil Moisture and Ocean Salinity) satellite mission that will attempt to map surface soil moisture from L-band (1.4 GHz) passive microwave measurements. In the field of passive microwaves, very little information exists about the behaviour of the L-band signal of forests especially when litter is included in the soil-vegetation system. To date very few analyses have investigated the dielectric behaviour of the litter layer and its influence on the microwave emission of forests is generally neglected. © 2008 EDP Sciences.
    Original languageEnglish
    Pages (from-to)303-315
    Number of pages13
    JournalEuropean Physical Journal D. Atomic, Molecular, Optical and Plasma Physics
    Volume44
    DOIs
    Publication statusPublished - 2008

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