NDLI: A polarimetric two-scale model for soil moisture retrieval

Content Provider	IEEE Xplore Digital Library
Author	Iodice, A. Natale, A. Riccio, D.
Copyright Year	2010
Description	Author affiliation: Dipartimento di Ingegneria Biomedica, Elettronica e delle Telecomunicazioni, Università di Napoli “Federico II”, Via Claudio 21, 80125, Italy (Iodice, A.; Natale, A.; Riccio, D.)
Abstract	A polarimetric two-scale surface scattering model employed to retrieve the surface parameters of bare soils from polarimetric SAR data is proposed. The scattering surface is considered as composed of slightly rough randomly tilted facets, for which the Small Perturbation Method holds. The facet random tilt causes a random variation of the local incidence angle, and a random rotation of the local incidence plane around the line of sight, which in turn causes a random rotation of the facet scattering matrix. Unlike other similar already existing approaches, our method considers both these effects. The proposed scattering model is then used to retrieve bare soil moisture and (large-scale) roughness from the co-polarized and cross-polarized ratios. The performances of the resulting retrieval algorithm is finally assessed by comparing obtained results to “in situ” measurements. To this aim, data from Little Washita campaign available in literature is employed.
Starting Page	1265
Ending Page	1268
File Size	640597
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5650066
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface roughness Scattering Rough surfaces Soil moisture Soil measurements Surface treatment Synthetic Aperture Radar (SAR) Polarimetry retrieval of natural surface parameters rough surfaces
Content Type	Text
Resource Type	Article

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