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

Martone, Michele und Jagdhuber, Thomas und Hajnsek, Irena und 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.

Dokumentart:Konferenzbeitrag (Vortrag)
Zusätzliche Informationen:©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
Titel:Modified Scattering Decomposition for Soil Moisture Estimation from Polarimetric X-Band Data
AutorenInstitution oder E-Mail-Adresse der Autoren
Iodice, AntonioUniversity of Naples "Federico II", Italy
Datum:29 April 2010
Erschienen in:Proceedings of IEEE GOLD 2010
Referierte Publikation:Ja
In ISI Web of Science:Nein
HerausgeberInstitution und/oder E-Mail-Adresse der Herausgeber
Stichwörter:PolSAR, soil moisture inversion, Physical Optics, TerraSAR-X
Veranstaltungstitel:IEEE GOLD Remote Sensing Conference
Veranstaltungsort:Livorno, Italy
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2010-04-29 - 2010-04-30
Veranstalter :IEEE
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben hochauflösende Fernerkundungsverfahreen (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Michele Martone
Hinterlegt am:26 Mär 2010 17:33
Letzte Änderung:31 Jul 2014 15:50

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