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Error in radar-derived soil moisture due to roughness parameterization: an analysis based on synthetical surface profiles
dc.creator | Lievens, Hans | es_ES |
dc.creator | Vernieuwe, Hilde | es_ES |
dc.creator | Álvarez-Mozos, Jesús | es_ES |
dc.creator | Baets, Bernard de | es_ES |
dc.creator | Verhoest, Niko E. C. | es_ES |
dc.date.accessioned | 2014-06-04T11:15:15Z | |
dc.date.available | 2014-06-04T11:15:15Z | |
dc.date.issued | 2009 | |
dc.identifier.issn | 1424-8220 | |
dc.identifier.other | 702 | |
dc.identifier.uri | https://hdl.handle.net/2454/10726 | |
dc.description.abstract | In the past decades, many studies on soil moisture retrieval from SAR demonstrated a poor correlation between the top layer soil moisture content and observed backscatter coefficients, which mainly has been attributed to difficulties involved in the parameterization of surface roughness. The present paper describes a theoretical study, performed on synthetical surface profiles, which investigates how errors on roughness parameters are introduced by standard measurement techniques, and how they will propagate through the commonly used Integral Equation Model (IEM) into a corresponding soil moisture retrieval error for some of the currently most used SAR configurations. Key aspects influencing the error on the roughness parameterization and consequently on soil moisture retrieval are: the length of the surface profile, the number of profile measurements, the horizontal and vertical accuracy of profile measurements and the removal of trends along profiles. Moreover, it is found that soil moisture retrieval with C-band configuration generally is less sensitive to inaccuracies in roughness parameterization than retrieval with L-band configuration. | en |
dc.description.sponsorship | The research presented in this paper 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, 2009, 9(2). Págs. 1067-1093 | en |
dc.rights | © 2009 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 | SAR | en |
dc.subject | Soil moisture | en |
dc.subject | Soil roughness parameterization | en |
dc.subject | Microwave dielectric behavior | en |
dc.subject | Aperture radar | en |
dc.subject | Bare soils | en |
dc.subject | Multi incidence | en |
dc.subject | Wet soils | en |
dc.subject | Data | en |
dc.subject | Retrieval | en |
dc.subject | Models | en |
dc.subject | Backscattering | en |
dc.subject | Scattering | en |
dc.subject | Chemistry | en |
dc.subject | Electrochemistry | en |
dc.title | Error in radar-derived soil moisture due to roughness parameterization: an analysis based on synthetical surface profiles | 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/s90201067 | |
dc.relation.publisherversion | https://dx.doi.org/10.3390/s90201067 | |
dc.type.version | Versión publicada / Argitaratu den bertsioa | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
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La licencia del ítem se describe como © 2009 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/)