机载和星载遥感数据提取的雪盖面积是融雪径流模型的重要组成部分。

Satellite - and airborne-derived measurements of snow covered area have been used in snowmelt runoff models.

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为充分精确提取MSS影像的雪盖面积，本文探索一种以NDVI为背景场的雪盖制图新思路。

To improve the accuracy of obtaining the snow cover area from MSS, this paper explores a method of snow cover mapping based on NDVI background field.

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这是因为大面积雪盖的高反射特性（北半球的冬季，雪可覆盖到40％的陆地表面）。

This is because of the highly reflective nature of snow combined with its large surface coverage (snow can cover up to 40% of the Earth's land surface during the Northern Hemisphere winter).

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这是因为大面积雪盖的高反射特性（北半球的冬季，雪可覆盖到40％的陆地表面）。

This is because of the highly reflective nature of snow combined with its large surface coverage (snow can cover up to 40% of the Earth's land surface during the Northern Hemisphere winter).

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