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| Titel |
Use of microwave remote sensing data to monitor spatio temporal characteristics of surface soil moisture at local and regional scales |
| VerfasserIn |
A. Löw, R. Ludwig, W. Mauser |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Proceedings of the 8th Workshop for Large Scale Hydrological Modelling - Oppurg 2004 ; Nr. 5 (2005-12-16), S.49-56 |
| Datensatznummer |
250002167
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| Publikation (Nr.) |
 copernicus.org/adgeo-5-49-2005.pdf |
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| Zusammenfassung |
| Hydrologic processes, such as runoff production or evapotranspiration,
largely depend on the variation of soil moisture and its spatial pattern.
The interaction of electromagnetic waves with the land surface can be
dependant on the water content of the uppermost soil layer. Especially in
the microwave domain of the electromagnetic spectrum, this is the case. New
sensors as e.g. ENVISAT ASAR, allow for frequent, synoptically and
homogeneous image acquisitions over larger areas. Parameter inversion models
are therefore developed to derive bio- and geophysical parameters from the
image products. The paper presents a soil moisture inversion model for
ENVISAT ASAR data for local and regional scale applications. The model is
validated against in situ soil moisture measurements. The various sources of
uncertainties, being related to the inversion process are assessed and
quantified. |
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