Google Earth Engine（GEE）——MODIS/MOD09A1影像的去云

上一次被人问到modis影像是否要去进行去云，我自己也摸不准，所以今天专门通过GEE去看了一下，对于目前已经有的合成的产品暂时不需要，因为已经经过处理了，但是对于光学影像，肯定是需要去云的，modis的去云方式同样也是QA波段去云的方式。

此次用到的数据：

MOD09A1.006 Terra Surface Reflectance 8-Day Global 500m

 数据描述：

The MOD09A1 V6 product provides an estimate of the surface spectral reflectance of Terra MODIS bands 1-7 at 500m resolution and corrected for atmospheric conditions such as gasses, aerosols, and Rayleigh scattering. Along with the seven reflectance bands is a quality layer and four observation bands. For each pixel, a value is selected from all the acquisitions within the 8-day composite on the basis of high observation coverage, low view angle, the absence of clouds or cloud shadow, and aerosol loading.

Documentation:

• User's Guide

文章来源: blog.csdn.net，作者：此星光明2021年博客之星云计算Top3，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/qq_31988139/article/details/121621354