Comparative studies on combination of optical and SAR signatures in estimation of plant and soil variables

Katarzyna Dabrowska-Zielinska; Yoshio Inoue; Wanda Kowalik; Maryla Gruszczynska

doi:10.1117/12.454200

28 January 2002 Comparative studies on combination of optical and SAR signatures in estimation of plant and soil variables

Katarzyna Dabrowska-Zielinska, Yoshio Inoue, Wanda Kowalik, Maryla Gruszczynska

Author Affiliations +

Proceedings Volume 4542, Remote Sensing for Agriculture, Ecosystems, and Hydrology III; (2002) https://doi.org/10.1117/12.454200
Event: International Symposium on Remote Sensing, 2001, Toulouse, France

Abstract

Information based on satellite data is used for evaluation of crop growth conditions what is essential for proper management of agricultural fields. The database of satellite data used for this application consists of optical and radar data from ERS. Soil moisture has been assessed using two different approaches. First one concerned the application of soil moisture index based on sensible and latent heat calculated from surface temperature (ATSR) and meteorological data (H/LE) and backscattering coefficient calculated from SAR data. Second one concerned the application of modified semiemperical water-cloud model to simulate backscattering coefficients of C-VV of ERS and L-HH of JERS as a function of LAI, Leaf Water Area Index and Vegetation Water Content. The final results gave the possibilities of comparison of the modeled soil moisture values with field measurements. The two-way attenuation of vegetation in three models for C-VV band and L-HH band has been examined.

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Katarzyna Dabrowska-Zielinska, Yoshio Inoue, Wanda Kowalik, and Maryla Gruszczynska "Comparative studies on combination of optical and SAR signatures in estimation of plant and soil variables", Proc. SPIE 4542, Remote Sensing for Agriculture, Ecosystems, and Hydrology III, (28 January 2002); https://doi.org/10.1117/12.454200

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KEYWORDS

Soil science

Vegetation

Backscatter

Satellites

Agriculture

Synthetic aperture radar

Microwave radiation

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