Country-wide data products for the ecosystem structure metrics derived from ALS data across the Netherlands (AHN3)

This data repository contains country-wide data products for the ecosystem structure metrics generated from Airborne Laser Scanning (ALS) data across the Netherlands (AHN3). Twenty-five ecosystem structure metrics (at 10-meter resolution, GeoTIFF format) were derived from AHN3 dataset (https://downloads.pdok.nl/ahn3-downloadpage/) using Laserfarm workflow (https://zenodo.org/record/5636773). Laserfarm is a free and open-source workflow that enables efficient, scalable, and distributed processing of multi-terabyte LiDAR point clouds from national and regional ALS surveys into LiDAR metrics of ecosystem structure. All code of Laserfarm is hosted and freely available on GitHub (https://github.com/eEcoLiDAR/Laserfarm). The Jupyter Notebooks for the processing of the AHN3 dataset are available on GitHub (https://github.com/eEcoLiDAR/AHN/tree/main/AHN3). The twenty-five LiDAR metrics are related to three key dimensions of ecosystem structure (ecosystem height, ecosystem cover, and ecosystem structural complexity), and a layer of point density and a layer of building/road/water mask are also provided. Each GeoTIFF layer represents one LiDAR metric at 10 m resolution covering the whole Netherlands (file name as "ahn3_10m_feature_name.tiff"). An overview of all the listed metrics (maps) is also provided in the PDF version (AHN3.pdf). A detailed description of the dataset is available from the following data publication:Kissling, W. D., Y. Shi, Z. Koma, C. Meijer, O. Ku, F. Nattino, A. C. Seijmonsbergen, and M. W. Grootes. 2022. Country-wide data of ecosystem structure from the third Dutch airborne laser scanning survey. Data in Brief: 108798.https://doi.org/10.1016/j.dib.2022.108798 A detailed description of all the metrics can be found in the README file (README.docx). A .zip file is also provided containing all the data for the validation of the AHN3 data products (AHN3_validation.zip).本数据集仓库包含基于荷兰全国航空激光扫描（Airborne Laser Scanning, ALS）第三期数据集（AHN3）生成的生态系统结构指标全国级数据产品。研究团队通过Laserfarm工作流（https://zenodo.org/record/5636773）从AHN3数据集（下载地址：https://downloads.pdok.nl/ahn3-downloadpage/）中推导得到25项分辨率为10米、格式为GeoTIFF的生态系统结构指标。Laserfarm是一款免费开源工作流，可实现对国家级、区域级航空激光扫描调查获取的多太字节激光雷达（LiDAR）点云进行高效、可扩展且分布式的处理，将其转换为生态系统结构的激光雷达指标。该工作流的全部代码托管于GitHub（https://github.com/eEcoLiDAR/Laserfarm）并免费公开。用于处理AHN3数据集的Jupyter Notebook同样开源在GitHub（https://github.com/eEcoLiDAR/AHN/tree/main/AHN3）。 该25项激光雷达指标对应生态系统结构的三个核心维度——生态系统高度、生态系统覆盖度以及生态系统结构复杂性，同时还额外提供了点密度图层与建筑/道路/水体掩膜图层。每个GeoTIFF图层均为覆盖荷兰全境的10米分辨率激光雷达指标图层，文件命名格式为“ahn3_10m_feature_name.tiff”。 所有指标对应的地图概览已整理为PDF版本（AHN3.pdf）。 本数据集的详细说明可参阅以下已发表的数据论文：Kissling, W. D.、Y. Shi、Z. Koma、C. Meijer、O. Ku、F. Nattino、A. C. Seijmonsbergen 与 M. W. Grootes 于2022年发表的《荷兰第三期航空激光扫描调查的全国生态系统结构数据集（Country-wide data of ecosystem structure from the third Dutch airborne laser scanning survey）》，刊载于《数据简报（Data in Brief）》，文章编号为108798，DOI：10.1016/j.dib.2022.108798。 所有指标的详细说明可参阅README文档（README.docx）。 同时提供了用于验证AHN3数据产品的压缩数据包（AHN3_validation.zip）。