Global Vegetation Height Metrics from GEDI and ICESat2

This dataset provides global rasters of relative height metrics for vegetation from Global Ecosystem Dynamics Investigation (GEDI) L2A data and Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) L3A ATL08 data at 100-, 200-, 500-, and 1000-m spatial resolutions. The metrics include the relative heights RH98, RH90, RH75, and RH50, corresponding to the height at which the respective 98th, 90th, 75th, and 50th percentile of returned energy is reached relative to the ground. These metrics provide measures of vegetation canopy height and structure. The different relative height metrics were intercalibrated over the overlap area (50 - 52 degrees N). GEDI data were collected from 2019-2022, and ICESat2 data were from 2019-2021. The data are provided in cloud optimized GeoTIFF format.

本数据集提供了全球范围内植被相对高度指标的栅格数据，数据源自全球生态系统动态调查（Global Ecosystem Dynamics Investigation，简称GEDI）L2A数据和冰、云、地表高程卫星-2（Ice, Cloud, and Land Elevation Satellite-2，简称ICESat-2）L3A ATL08数据，空间分辨率为100米、200米、500米和1000米。指标包括RH98、RH90、RH75和RH50，分别对应于返回能量在相对于地面的98%、90%、75%和50%百分位数时的高度。这些指标提供了植被冠层高度和结构的测量值。不同的相对高度指标在重叠区域（北纬50至52度）进行了相互校准。GEDI数据收集于2019至2022年，ICESat2数据收集于2019至2021年。数据以云优化GeoTIFF格式提供。