MODIS-derived Aggregate, Woody and Herbaceous Leaf Area Index for Africa, 2002-2022

This dataset provides leaf area index (LAI) estimates for Sub-Saharan Africa for woody, herbaceous, and aggregate vegetation types. The estimates were derived from Moderate Resolution Imaging Spectroradiometer (MODIS) Level 4 and the native MODIS LAI product (MCD15A2H Version 6.1), which provides LAI measurements every 8 days at 500-m pixel size. Data from the MCD15A2H product were processed further to generate three layers including: a smoothed and gap filled LAI layer referred to as aggregate leaf area index and two additional layers processed to separate woody LAI (tree and shrubs) and herbaceous LAI (grass and forbs). The data include 31 MODIS 10-degree tiles and cover 2002 to 2022. The data are provided in NetCDF format.

本数据集为撒哈拉以南非洲地区的木本、草本及综合植被类型提供叶面积指数（LAI）的估算值。该估算值源自中分辨率成像光谱辐射计（MODIS）第4级数据以及原生MODIS LAI产品（MCD15A2H版本6.1），该产品以8天一次的频率，在500米像素尺寸下提供LAI测量值。MCD15A2H产品的数据经过进一步处理，生成了包括：一个称为综合叶面积指数的平滑并填补空缺的LAI层以及两个额外处理层，用于区分木本LAI（树木和灌木）和草本LAI（草地和杂草）。数据包含31个MODIS 10度瓦片，覆盖了2002年至2022年。数据以NetCDF格式提供。