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首页> 外文期刊>Remote Sensing of Environment: An Interdisciplinary Journal >Detecting lithology with Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) multispectral thermal infrared 'radiance-at-sensor' data
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Detecting lithology with Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) multispectral thermal infrared 'radiance-at-sensor' data

机译：使用先进的星载热发射和反射辐射计（ASTER）多光谱热红外“传感器辐射”数据检测岩性

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摘要

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) aboard NASA's Terra satellite measures multispectral thermal infrared (TIR) emission from the Earth's surface to space. Based on analysis of TIR spectral properties of typical rocks on the Earth, several mineralogic indices including the Quartz Index (QI), Carbonate Index (CI) and Mafic Index (MI) for detecting mineralogic or chemical composition of quartzose, carbonate and silicate rocks with ASTER-TIR data are proposed. These indices are applied to the ASTER-TIR data scenes for selected study areas in China and Australia. The results show that ASTER-TIR can discriminate quartz and carbonate rocks as well as mafic-ultramafic rocks, even with atmospherically uncorrected radiance-at-sensor data. Lithologic interpretations agree well with published geologic data and field observations. The mineralogic indices applied to ASTER-TIR provide one unified approach for lithologic mapping in arid and semi-arid regions of the Earth.
机译：NASA的Terra卫星上的先进星载热辐射与反射辐射仪（ASTER）可测量从地球表面到太空的多光谱热红外（TIR）辐射。基于对地球上典型岩石的TIR光谱特性的分析，包括石英指数（QI），碳酸盐指数（CI）和镁铁质指数（MI）在内的几种矿物学指标可用于检测石英，碳酸盐和硅酸盐岩石的矿物学或化学组成提出了ASTER-TIR数据。这些指数适用于中国和澳大利亚选定研究区域的ASTER-TIR数据场景。结果表明，即使在大气中未校正辐射辐射率数据的情况下，ASTER-TIR仍可区分石英和碳酸盐岩以及镁铁质超音波岩。岩性解释与已发表的地质数据和现场观测非常吻合。应用于ASTER-TIR的矿物学指标为地球干旱和半干旱地区的岩性测绘提供了一种统一的方法。

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