2010-2020年全国草地植被长势数据

该数据集是栅格型数据，选用距平模型计算得到草原植被长势指数差值，数据源为MOD13A2数据，时间分辨率16 d，空间分辨率1 km，通过最大值合成方法得到2010-2020年逐年NDVI数据值将草原植被长势指数差值分为5个等级，依次为好、较好、持平、较差和差，通过提取全球30 m地表覆盖数据（GlobeLand30）草地数据裁剪而成。

This is a raster dataset. The original data source is the MOD13A2 product, which has a temporal resolution of 16 days and a spatial resolution of 1 km. Annual NDVI values from 2010 to 2020 were generated through the maximum value composite (MVC) method. The difference values of grassland vegetation growth index were calculated using the anomaly model based on the NDVI data, and then classified into 5 grades in sequence: excellent, good, stable, poor and very poor. This dataset was obtained via cropping with the grassland layer extracted from the 30-meter global land cover data (GlobeLand30).

搜集汇总

背景与挑战

背景概述

该数据集为2010-2020年全国草地植被长势的栅格数据，基于MOD13A2数据源，通过距平模型和最大值合成方法计算NDVI值，将植被长势分为五个等级。数据覆盖中国范围，空间分辨率为1公里，用于草原生态监测。