GMC-21 GeoTiffs Presence/Absence Data

2000 - 2020 All GMC-21 presence/absence data for the above years at native resolution in raster format in GeoTIFF format (tiff). PA = presence/absence raster data (commonly used), not continuous. Units are presence = 1 and absence =0. A value of 1 means some mangrove in located in the 27.5m2 cell. Use these data to compare with Giri, Ji, mangrove watch, etc.

2000年至2020年GMC-21的全年存在-缺失（presence/absence）栅格数据，以原生分辨率存储，格式为GeoTIFF（.tiff）。其中PA即存在-缺失（presence/absence）栅格数据，属于通用常用的非连续型数据集。其取值规则为：存在时取值为1，缺失时取值为0；当单个面积为27.5平方米的栅格单元内存在红树林时，对应栅格取值为1。可将该数据集与Giri、Ji、红树林观测（Mangrove Watch）等相关数据集进行对比分析。