2005
DOI: 10.1016/j.rse.2005.04.027
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Mineral mapping on the Chilean–Bolivian Altiplano using co-orbital ALI, ASTER and Hyperion imagery: Data dimensionality issues and solutions

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Cited by 136 publications
(72 citation statements)
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“…Over the last decades a limited number of studies have applied remote sensing techniques to study salt pan evaporite minerals and were able to provide spatial information on pan surfaces in terms of evaporite mineral discrimination supported by field observations. Most of them rely on traditional optical multi-spectral satellite sensors [1,13,[16][17][18][19]] that often do not provide the necessary spectral resolution to cover the spectral complexity of evaporite mineral assemblages on salt pan surfaces [20] and only provide a mono-temporal assessment. In comparison, analysis based on advanced hyperspectral imagery, also named imaging spectroscopy, are more sensitive for the identification and quantification of a wider range of evaporite minerals [13,21], and usually achieve higher modeling results [20].…”
Section: Of 24mentioning
confidence: 99%
See 1 more Smart Citation
“…Over the last decades a limited number of studies have applied remote sensing techniques to study salt pan evaporite minerals and were able to provide spatial information on pan surfaces in terms of evaporite mineral discrimination supported by field observations. Most of them rely on traditional optical multi-spectral satellite sensors [1,13,[16][17][18][19]] that often do not provide the necessary spectral resolution to cover the spectral complexity of evaporite mineral assemblages on salt pan surfaces [20] and only provide a mono-temporal assessment. In comparison, analysis based on advanced hyperspectral imagery, also named imaging spectroscopy, are more sensitive for the identification and quantification of a wider range of evaporite minerals [13,21], and usually achieve higher modeling results [20].…”
Section: Of 24mentioning
confidence: 99%
“…Most of them rely on traditional optical multi-spectral satellite sensors [1,13,[16][17][18][19]] that often do not provide the necessary spectral resolution to cover the spectral complexity of evaporite mineral assemblages on salt pan surfaces [20] and only provide a mono-temporal assessment. In comparison, analysis based on advanced hyperspectral imagery, also named imaging spectroscopy, are more sensitive for the identification and quantification of a wider range of evaporite minerals [13,21], and usually achieve higher modeling results [20]. EO-1 Hyperion is the first hyperspectral satellite that operates across the full solar-reflective spectrum with nominal spectral coverage form 0.4-2.5 µm and 10 µnm spectral response functions [22].…”
Section: Of 24mentioning
confidence: 99%
“…Hyperspectral imagery allows for a wide range of possibilities for mapping complex features on the Earth's surface, by providing data with high dimensionality, as long as good signal to-noise-ratio and spatial resolution are ensured [33]. In the present work, interpreter-oriented sequential spectral unmixing was applied, using standard algorithms, to extract features for thematic purposes, enabling the display of spatial patterns and spectral identification pixels within the scene as a map.…”
Section: Mapping the Presence Of Contaminants In Acid Mine Drainage Amentioning
confidence: 99%
“…To ensure the output of a reasonable map when diagnosing spectra using a reference spectral library, the most important requirement is to restrict the map to an area which is likely to contain the substances of interest [33]. Mine sites are small areas, even within such a widely and intensely mined region as the Iberian Pyrite Belt.…”
Section: Mapping the Presence Of Contaminants In Acid Mine Drainage Amentioning
confidence: 99%
“…This sensor has the advantage to cover the SWIR which are significant to map several mineral groups include hydroxides, hydrates and carbonates (Abdelkareem and El-Baz, 2016). This allowed discriminating between key-alteration minerals such as kaolinite, smectite, alunite, and jarosite (Zhang et al, 2016;Yamaguchi and Naito, 2003; Rowan et al, 2003;Hubbard and Crowley, 2005;Zadeh et al, 2014). These minerals of alteration zones appear on contact with ore deposits which occupied the center of the alteration zones.…”
Section: Introductionmentioning
confidence: 99%