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Surface mineral mapping of Makhtesh Ramon Negev, Israel using GER 63 channel scanner data

1995; Taylor & Francis; Volume: 16; Issue: 18 Linguagem: Inglês

10.1080/01431169508954644

1366-5901

Eyal Ben‐Dor, Fred A. Kruse,

Remote-Sensing Image Classification

Abstract Geophysical and Environmental Research (GER) 63 channel scanner data were used to map the surface mineralogy of Makhtesh Ramon, Negev, Israel. The data werecorrected to reflectance using the Internal Average Relative Reflectance (IARR) method and analysed using colour-composites, the Spectral Angle Mapper (SAM), and linear spectral unmixing (UNM). Results demonstrate that imaging spectrometer data can be used to produce detailed mineralogical maps in arid terrains even when no calibration measurements are made during the flights and no ground measurements are available. The mineralogical maps produced using the GER data compare favourably to the known surface mineralogy, however, they provide greater detail regarding composition and mineral abundance than the existing geological maps.