Global Yearly Forest Aboveground Biomass (AGB) in 2000-2020

This dataset describes Global Aboveground Biomass(AGB) by GEDI and MODIS GLASS Dataset in 2001-2020.The Spatial resolution of thisdataset is 0.00833333 degree in GCS_WGS_1984.The AGB data based on GEDI SAWA indices in 2020 was used as a benchmark data,indices dervied from MODIS Global lAnd Surface Satellite (GLASS) datasets in 2020 were used to retrieval the AGB.Different retrieval models were developed by Random Forest considering different forest types from MODIS MCD12Q1 Dataset within different continents. The final map in 2000-2020 were extracted by the information from MODIS GLASS datasaet with the models. The overall accuracy of the datasets are close to 75%.

本数据集描述了2001-2020年基于GEDI与MODIS GLASS数据集的全球地上生物量（AGB）。该数据集的空间分辨率为0.00833333度，采用GCS_WGS_1984坐标系。2020年基于GEDI SAWA指数的AGB数据被用作基准数据，而2020年从MODIS全球陆地表面卫星（GLASS）数据集衍生的指数则用于反演AGB。研究基于MODIS MCD12Q1数据集划分的不同大陆的森林类型，利用随机森林（Random Forest）构建了多种反演模型。最终的2000-2020年AGB分布图通过将MODIS GLASS数据集的信息输入上述模型生成。该数据集的总体精度接近75%。