DOI: 10.1016/j.jag.2017.05.008
Scopus记录号: 2-s2.0-85032171852
论文题名: Evaluating the effect of spatial subsetting on subpixel unmixing methodology applied to ASTER over a hydrothermally altered terrain
作者: Ayoobi I ; , Tangestani M ; H
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 62 起始页码: 1
结束页码: 7
语种: 英语
英文关键词: ASTER
; MF
; Semi-quantitative XRD
; Spatial subset
Scopus关键词: ASTER
; hydrothermal alteration
; infrared imagery
; pixel
; porphyry
; shortwave radiation
; spatial analysis
; terrain
; X-ray diffraction
英文摘要: This study investigates the effect of spatial subsets of Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) L1B visible-near infrared and short wave-infrared (VNIR-SWIR) data on matched filtering results at the central part of Kerman magmatic arc, where abundant porphyry copper deposits exist. The matched filtering (MF) procedure was run separately at sites containing hydrothermal minerals such as sericite, kaolinite, chlorite, and jarosite to map the abundances of these minerals on spatial subsets containing 100, 75, 50, and 25 percent of the original scene. Results were evaluated by comparing the matched filtering scores with the mineral abundances obtained by semi-quantitative XRD analysis of corresponding field samples. It was concluded that MF method should be applied to the whole scene prior to any data subsetting. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79992
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran
Recommended Citation:
Ayoobi I,, Tangestani M,H. Evaluating the effect of spatial subsetting on subpixel unmixing methodology applied to ASTER over a hydrothermally altered terrain[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,62