A soil moisture retrieval technique based on the semi-empirical scattering model for HH-, HV-, and VV-polarized radar observations
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oh, Y. | - |
dc.date.accessioned | 2022-02-17T05:42:59Z | - |
dc.date.available | 2022-02-17T05:42:59Z | - |
dc.date.created | 2022-02-17 | - |
dc.date.issued | 2005 | - |
dc.identifier.issn | 0000-0000 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/25694 | - |
dc.description.abstract | This paper presents an algorithm for retrieval of soil moisture content from hh-, hv-, and vv-polarized radar observation using a genetic algorithm with the semi-empirical polarimetric scattering model for bare soil surfaces. The semiempirical polarimetric scattering model was developed empirically based on an extensive database comprising the polarimetric radar measurements using the ground-based scatterometers and the JPL airborne synthetic aperture radar (AirSAR) system. The input parameters of the scattering model are the volumetric soil moisture content, the rms height, the correlation length, incident angle, and radar frequency. The outputs of the scattering model are vv-, hh-, hv-polarized backscattering coefficients as well as the phase parameters of the degree of correlation and the co-polarized phase-difference. The inversion technique in this study is based on a genetic algorithm. The vv-, hh- and hv-polarized backscattering coefficients are used as the cost function of the Genetic algorithm. The outputs of the inversion model are the soil moisture and the rms surface height. One of main objectives of this study is to optimize the cost function with appropriate combination of three polarization data. The inversion model is verified by comparing the inverted results with in-situ measurement data. © 2005 IEEE. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.title | A soil moisture retrieval technique based on the semi-empirical scattering model for HH-, HV-, and VV-polarized radar observations | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Oh, Y. | - |
dc.identifier.doi | 10.1109/IGARSS.2005.1525639 | - |
dc.identifier.scopusid | 2-s2.0-33745712830 | - |
dc.identifier.bibliographicCitation | International Geoscience and Remote Sensing Symposium (IGARSS), v.4, pp.2759 - 2762 | - |
dc.relation.isPartOf | International Geoscience and Remote Sensing Symposium (IGARSS) | - |
dc.citation.title | International Geoscience and Remote Sensing Symposium (IGARSS) | - |
dc.citation.volume | 4 | - |
dc.citation.startPage | 2759 | - |
dc.citation.endPage | 2762 | - |
dc.type.rims | ART | - |
dc.type.docType | Conference Paper | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
94, Wausan-ro, Mapo-gu, Seoul, 04066, Korea02-320-1314
COPYRIGHT 2020 HONGIK UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.