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Soil moisture estimation using a multi-angular modified three component polarimetric decomposition

Jagdhuber, Thomas and Hajnsek, Irena and Papathanassiou, Konstantinos and Bronstert, Axel (2009) Soil moisture estimation using a multi-angular modified three component polarimetric decomposition. In: Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS). IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2009-07-12 - 2009-07-17, Kapstadt.

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Abstract

In this paper a modified three component polarimetric decomposition incorporating multi-angular acquisitions is developed to estimate soil moisture under vegetation cover over agricultural areas. The approach is applied on fully-polarimetric L-band data acquired by DLR’s airborne E-SAR sensor in the frame of the OPAQUE campaign conducted in May 2008 in the Weißeritz catchment area, near Dresden, Germany. The results for the estimated soil moisture from the overlapping area of the flight strips demonstrate a significant increase of the inversion rate, if more than one acquisition is used. The inverted soil moisture values are validated against in situ measurements for five test fields with different crop types resulting in an RMSE of approximately 7vol.% for different incidence angle constellations. Finally the results show how topographic effects in the soil moisture retrieval can be compensated by multi-angular constellations.

Document Type:Conference or Workshop Item (Speech, Paper)
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:Soil moisture estimation using a multi-angular modified three component polarimetric decomposition
Authors:
AuthorsInstitution or Email of Authors
Jagdhuber, ThomasUNSPECIFIED
Hajnsek, IrenaUNSPECIFIED
Papathanassiou, KonstantinosUNSPECIFIED
Bronstert, AxelInstitut für Geoökologie, Universität Potsdam
Date:17 July 2009
Journal or Publication Title:Proceedings of the IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
Status:Published
Keywords:Model-based Decomposition,SAR polarimetry, soil moisture, Multi-angular,OPAQUE
Event Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Kapstadt
Event Type:international Conference
Event Dates:2009-07-12 - 2009-07-17
Organizer:IEEE
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 Prosmart, Smart-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Thomas Jagdhuber
Deposited On:23 Dec 2009 19:02
Last Modified:12 Dec 2013 20:49

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