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Modified Scattering Decomposition for Soil Moisture Estimation from Polarimetric X-Band Data

Martone, Michele and Jagdhuber, Thomas and Hajnsek, Irena and Iodice, Antonio (2010) Modified Scattering Decomposition for Soil Moisture Estimation from Polarimetric X-Band Data. In: Proceedings of IEEE GOLD 2010. IEEE. IEEE GOLD Remote Sensing Conference, 2010-04-29 - 2010-04-30, Livorno, Italy.

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Soil moisture content represents a key observable in order to model, describe and predict many ecological processes. In the last decades, theoretical and empirical inversion algorithms for soil moisture estimation using PolSAR data at L- and P-band have been intensively investigated, and, meanwhile, there exist innovative techniques for the quantitative retrieval of dielectric constant of the soil [1]. In this project work, the potential of estimating soil moisture from fully polarimetric X-band SAR data is investigated for the first time. Due to the short wavelength, the Physical Optics model has been chosen for the scattering process representation [2] and a model-based decomposition approach has been used to exploit the polarimetric observable space. For appropriate modelling of the very strong cross-polarization contribution of X-band waves, which are scattered by even very small objects, corrections of the volume scattering contribution were implemented. In order to improve the retrieval of the moisture content, the developed polarimetric decomposition has been further modified by means of an eigen-analysis of the coherency matrix. The SAR data were acquired by the German satellite TerraSAR-X over the agricultural area of Wallerfing (Lower Bavaria, Germany) in April/May 2009. A validation of the proposed approaches for a quality assessment has been performed by comparing the estimated moisture values with in situ measurements collected in collaboration with the Ludwig-Maximilians-Universität (LMU) München.

Item URL in elib:https://elib.dlr.de/63793/
Document Type:Conference or Workshop Item (Speech)
Additional Information:©2010 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
Title:Modified Scattering Decomposition for Soil Moisture Estimation from Polarimetric X-Band Data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Iodice, AntonioUniversity of Naples "Federico II", ItalyUNSPECIFIEDUNSPECIFIED
Date:29 April 2010
Journal or Publication Title:Proceedings of IEEE GOLD 2010
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:PolSAR, soil moisture inversion, Physical Optics, TerraSAR-X
Event Title:IEEE GOLD Remote Sensing Conference
Event Location:Livorno, Italy
Event Type:international Conference
Event Dates:2010-04-29 - 2010-04-30
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben hochauflösende Fernerkundungsverfahreen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Microwaves and Radar Institute
Deposited By: Martone, Michele
Deposited On:26 Mar 2010 17:33
Last Modified:31 Jul 2019 19:27

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