Discrete return LiDAR point cloud (DP1.30003.001)

The NEON AOP Discrete Return Light Detection and Ranging (LiDAR) Point Cloud is provided in a compressed American Society for Photogrammetry and Remote Sensing (ASPRS) LAS format (LAZ), referenced to a UTM map projection and ITRF00 datum horizontally and NAVD88 (Geoid12A realization) vertically. It provides the X, Y, Z coordinates and intensity for each laser return point. AOP discrete LiDAR is collected at several points per square meter, and each point can have multiple returns. L1 LiDAR point clouds are distributed in their original flight lines with one flight line per file which are unclassified, as well as classified 1 km by 1 km tiles. Latency: AOP data will be available 60 days after the final collection day at a site.NEON航空观测项目（Airborne Observation Program, AOP）离散回波激光雷达（Light Detection and Ranging, LiDAR）点云数据集采用压缩后的美国摄影测量与遥感学会（American Society for Photogrammetry and Remote Sensing, ASPRS）LAS格式（LAZ）存储，水平方向参考通用横轴墨卡托（Universal Transverse Mercator, UTM）地图投影及ITRF00基准面，垂直方向参考NAVD88（Geoid12A实现）基准面。该数据集为每个激光回波点提供X、Y、Z坐标及强度信息。AOP离散LiDAR数据以每平方米多个测点的密度采集，且每个测点可对应多个回波点。L1级LiDAR点云以原始飞行航线为分发单元，单文件对应单条飞行航线（未分类），同时还提供分类后的1km×1km瓦片数据集。数据发布延迟：单个站点的最终数据采集完成后60天内，该站点的AOP数据将对外开放获取。

搜集汇总

背景与挑战

背景概述

该数据集是NEON机载观测平台提供的离散回波LiDAR点云数据，以LAZ格式存储，包含未分类的航线点云和分类的1公里瓦片点云，遵循ASPRS标准，坐标系统采用UTM投影和ITRF00基准（水平）及Geoid12A高程基准。数据采集密度高，每平方米有多个点，支持多次回波，适用于地形建模和生态研究。注意：该特定发布版本（RELEASE-2024）已被更新版本替代，不再直接下载。