On the soil roughness parameterization problem in soil moisture retrieval of bare surfaces from synthetic aperture radar

Verhoest, Niko E. C.; Lievens, Hans; Wagner, Wolfgang; Álvarez-Mozos, Jesús; Moran, M. Susan; Mattia, Francesco

doi:10.3390/s8074213

dc.creator	Verhoest, Niko E. C.	es_ES
dc.creator	Lievens, Hans	es_ES
dc.creator	Wagner, Wolfgang	es_ES
dc.creator	Álvarez-Mozos, Jesús	es_ES
dc.creator	Moran, M. Susan	es_ES
dc.creator	Mattia, Francesco	es_ES
dc.date.accessioned	2014-05-29T12:37:28Z
dc.date.available	2014-05-29T12:37:28Z
dc.date.issued	2008
dc.identifier.issn	1424-8220
dc.identifier.other	741
dc.identifier.uri	https://hdl.handle.net/2454/10665
dc.description.abstract	Synthetic Aperture Radar has shown its large potential for retrieving soil moisture maps at regional scales. However, since the backscattered signal is determined by several surface characteristics, the retrieval of soil moisture is an ill-posed problem when using single configuration imagery. Unless accurate surface roughness parameter values are available, retrieving soil moisture from radar backscatter usually provides inaccurate estimates. The characterization of soil roughness is not fully understood, and a large range of roughness parameter values can be obtained for the same surface when different measurement methodologies are used. In this paper, a literature review is made that summarizes the problems encountered when parameterizing soil roughness as well as the reported impact of the errors made on the retrieved soil moisture. A number of suggestions were made for resolving issues in roughness parameterization and studying the impact of these roughness problems on the soil moisture retrieval accuracy and scale.	en
dc.description.sponsorship	Part of the research presented in this paper, as performed by the first two authors, is funded by the Belgian Science Policy Office in the frame of the Stereo II programme - project SR/00/100.	en
dc.format.mimetype	application/pdf	en
dc.language.iso	eng	en
dc.publisher	MDPI	en
dc.relation.ispartof	Sensors, 2008, 8(7). Págs. 4213-4248	en
dc.rights	© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).	en
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/
dc.subject	Soil roughness	en
dc.subject	Soil moisture retrieval	en
dc.subject	Synthetic aperture radar	en
dc.subject	Uncertainty	en
dc.subject	Integral equation model	en
dc.subject	Microwave backscatter dependence	en
dc.subject	A priori information	en
dc.subject	Sar data	en
dc.subject	C band	en
dc.subject	Polarimetric sar	en
dc.subject	Agricultural	en
dc.subject	Fields	en
dc.subject	Profile meter	en
dc.subject	Laser scanner	en
dc.subject	Wet soil	en
dc.title	On the soil roughness parameterization problem in soil moisture retrieval of bare surfaces from synthetic aperture radar	en
dc.type	Artículo / Artikulua	es
dc.type	info:eu-repo/semantics/article	en
dc.contributor.department	Proyectos e Ingeniería Rural	es_ES
dc.contributor.department	Landa Ingeniaritza eta Proiektuak	eu
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.identifier.doi	10.3390/s8074213
dc.relation.publisherversion	https://dx.doi.org/10.3390/s8074213
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.type.version	info:eu-repo/semantics/publishedVersion	en

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© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

La licencia del ítem se describe como © 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).