Sealing 2021 (uncertain sealing grades, grid data)

This grid map is an uncorrected interim result of the 2021 sealing mapping (environmental atlas). The result of the rule-based classification of satellite data (Sentinel-2B scene June 2021).本栅格地图为2021年地表封闭制图（环境图集）的未校正的阶段性成果，该成果基于卫星数据（2021年6月哨兵-2B（Sentinel-2B）影像景）通过基于规则的分类方法得到。