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An Improved Physics-Based Model for Topographic Correction of Landsat TM Images
Li, Ainong1; Wang, Qingfang1,2; Bian, Jinhu1,2; Lei, Guangbin1,2
Corresponding AuthorJinhu Bian
2015
Source PublicationREMOTE SENSING
ISSN2072-4292
Volume7Issue:5Pages:6296-6319
SubtypeArticle
AbstractOptical remotely sensed images in mountainous areas are subject to radiometric distortions induced by topographic effects, which need to be corrected before quantitative applications. Based on Li model and Sandmeier model, this paper proposed an improved physics-based model for the topographic correction of Landsat Thematic Mapper (TM) images. The model employed Normalized Difference Vegetation Index (NDVI) thresholds to approximately divide land targets into eleven groups, due to NDVI's lower sensitivity to topography and its significant role in indicating land cover type. Within each group of terrestrial targets, corresponding MODIS BRDF (Bidirectional Reflectance Distribution Function) products were used to account for land surface's BRDF effect, and topographic effects are corrected without Lambertian assumption. The methodology was tested with two TM scenes of severely rugged mountain areas acquired under different sun elevation angles. Results demonstrated that reflectance of sun-averted slopes was evidently enhanced, and the overall quality of images was improved with topographic effect being effectively suppressed. Correlation coefficients between Near Infra-Red band reflectance and illumination condition reduced almost to zero, and coefficients of variance also showed some reduction. By comparison with the other two physics-based models (Sandmeier model and Li model), the proposed model showed favorable results on two tested Landsat scenes. With the almost half-century accumulation of Landsat data and the successive launch and operation of Landsat 8, the improved model in this paper can be potentially helpful for the topographic correction of Landsat and Landsat-like data.
KeywordMountainous Areas Topographic Correction Ndvi Brdf Landsat Tm
WOS HeadingsScience & Technology ; Technology
DOI10.3390/rs70506296
WOS Subject ExtendedRemote Sensing
Indexed BySCI
WOS KeywordMOUNTAINOUS TERRAIN ; RUGGED TERRAIN ; BIDIRECTIONAL REFLECTANCE ; ATMOSPHERIC CORRECTION ; SATELLITE IMAGERY ; BRDF CORRECTION ; SURFACE BRDF ; EOS-MODIS ; CLASSIFICATION ; ALGORITHM
Language英语
Quartile2区
TOP
WOS SubjectRemote Sensing
WOS IDWOS:000357596900024
Funding OrganizationNational Natural Science Foundation project of China(41271433) ; International Cooperation Key Project of CAS(GJHZ201320) ; International Cooperation Partner Program of Innovative Team, CAS(KZZD-EW-TZ-06) ; Chinese Academy of Sciences (CAS)
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9205
Collection数字山地与遥感应用中心
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Li, Ainong,Wang, Qingfang,Bian, Jinhu,et al. An Improved Physics-Based Model for Topographic Correction of Landsat TM Images[J]. REMOTE SENSING,2015,7(5):6296-6319.
APA Li, Ainong,Wang, Qingfang,Bian, Jinhu,&Lei, Guangbin.(2015).An Improved Physics-Based Model for Topographic Correction of Landsat TM Images.REMOTE SENSING,7(5),6296-6319.
MLA Li, Ainong,et al."An Improved Physics-Based Model for Topographic Correction of Landsat TM Images".REMOTE SENSING 7.5(2015):6296-6319.
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