Development of normalized Vegetation, soil and water indices derived from satellite remote sensing data
Development of normalized Vegetation, soil and water indices derived from satellite remote sensing data
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根据卫星遥感数据制定标准化植被、土壤和水指数
DOI：
10.4287/jsprs.43.6_7
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Y. Yasuoka
中科院分区：
文献类型：
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作者：
W. Takeuchi;Y. Yasuoka
新发射的传感器，如Terra ASTER或Terra/Aqua中分辨率成像分光仪，有覆盖短波红外线的通道，短波红外线对探测陆地表面的水状况是敏感或有效的。在这项研究中，首先，一组归一化指数，包括归一化差异植被指数（NDVI），归一化差异土壤指数（NDSI）和归一化差异水指数（NDWI），统称为NDXI，通过扩展的想法，利用SWIR通道。其次，他们的行为进行了调查，在地面上观察到的各种11个光谱特征。NDXI与植被、土壤和水的存在高度相关。第三，利用ASTER、AVHRR、ETM和MODIS的光谱响应对典型光学传感器的兼容性进行了评价。最后，在各种气溶胶，能见度，地形和太阳目标传感器的几何形状下，使用辐射传输模拟的大气影响进行了评估。
Newly launched sensors such as Terra ASTER or Terra/Aqua MODIS have channels to cover short wave infrared (SWIR) which is sensitive or effective to detect water condition on the land surface. In this study, firstly, a set of normalized indices including normalized difference vegetation index (NDVI), normalized difference soil index (NDSI) and normalized difference water index (NDWI), collectively called NDXI, were newly introduced by extending the idea of NDVI using SWIR channels. Secondly, their behavior were investigated for a variety of eleven spectral signatures observed at the ground level. It was found that NDXI were highly correlated with the existence of vegetation, soil and water. Thirdly, the compatibility of typical optical sensors were evaluated using the spectral response of ASTER, AVHRR, ETM and MODIS. Finally the atmospheric effects were evaluated using radiative transfer simulation under a variety of aerosol, visibility, topography and sun-target-sensor geometry.