地表水指数LSWI公式
时间: 2023-10-18 14:54:46 浏览: 117
LSWI(Land Surface Water Index,地表水体指数)的计算公式如下:
LSWI = (NIR - SWIR) / (NIR + SWIR)
其中,NIR代表近红外波段的反射率,SWIR代表短波红外波段的反射率。通过计算这两个波段的反射率之差与之和的比值,可以得到地表水体指数LSWI的值。该指数可以用来评估地表水体的分布和变化情况,对于水资源管理和环境监测具有重要的意义。\[1\]
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