2020年全球地表反射率产品数据集

该数据集为基于国产风云三号卫星生产2020年全球1km地表反射率季度产品。产品生产时，将地表分为浓密植被、无植被以及介于浓密植被和无植被之间的三种基本状况，并针对不同地表发展不同的方法进行气溶胶反演，在AOD产品的支持下，进行大气校正生成全球地表反射率产品；同时，我们采用与MOD09产品进行对比验证，我们的地表反射率产品在蓝、绿、红、近红外4个波段的相对误差分别为0.0301、0.0293、0.0346和0.0544，相对精度分别为86.16%，87.56%，85.74%和85.06%。

This dataset is the global 1-kilometer surface reflectance quarterly product generated in 2020 using China's domestically produced Fengyun-3 satellite data. During the production of this product, the land surface is categorized into three basic types: dense vegetation, non-vegetated areas, and areas intermediate between dense vegetation and non-vegetated areas. Distinct aerosol retrieval methods are developed for different land surface types, and atmospheric correction is performed with the support of AOD products to generate the global surface reflectance product. Additionally, comparative validation was conducted against the MOD09 product. The relative errors of our surface reflectance product in the blue, green, red, and near-infrared bands are 0.0301, 0.0293, 0.0346, and 0.0544 respectively, with corresponding relative accuracies of 86.16%, 87.56%, 85.74%, and 85.06% respectively.

搜集汇总

背景与挑战

背景概述

该数据集是基于风云三号（FY-3）卫星生成的2020年全球1公里分辨率地表反射率季度产品。通过将地表分为密集植被、无植被和中间状态三种条件，采用差异化气溶胶反演方法，并结合AOD产品进行大气校正，确保了数据精度，在主要波段的相对精度均不低于85%。数据集适用于遥感反演相关研究，支持全球尺度的地表监测和分析。