LiDAR Point Cloud Data from the NGEE Arctic UAS Campaigns at the Teller 27 Field Site from 2017 and 2018, Seward Peninsula, Alaska

Minimally processed Light Detection and Ranging (LiDAR) point cloud data were collected from Los Alamos National Laboratory’s (LANL) heavy-lift unoccupied aerial system (UAS) quadcopter and hexacopter platforms operated by Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic) scientists from the EES-14 group at LANL. These data were collected in August 2017 and July 2018 at the NGEE Arctic field site near mile marker 27 of the Bob Blodgett Nome–Teller Memorial Highway between Nome, Alaska and Teller, Alaska. A Vulcan Raven X8 Airframe (Mitcheldean, Gloucestershire, UK), DJI Matrice 600 Pro Airframe (Shenzhen, China), and Routescene UAV LiDARSystem (Edinburgh, Scotland, UK) were used to collect LiDAR data. This LiDAR data has undergone basic post-processing using Routescene LidarViewer Pro software to create point cloud data (.laz files). Following basic processing, data from multiple flights and years were merged into a single raw point cloud using CloudCompare software. This data package contains compressed point clouds (.laz), post-processed kinematic files (.csv), and details about the Level 1 (L1) processing workflow. Ancillary aircraft data, flight mission parameters, weather conditions, and raw LiDAR data and imagery can be found in the L0 datasets for these campaigns: NGA299 (2017) and NGA297 (2018).The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), a research effort to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy’s Office of Biological and Environmental Research.The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska.Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy’s Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).

经轻度预处理的激光雷达（Light Detection and Ranging, LiDAR）点云数据，由洛斯阿拉莫斯国家实验室（Los Alamos National Laboratory, LANL）EES-14研究组的下一代生态系统实验：北极（Next-Generation Ecosystem Experiments: Arctic, NGEE Arctic）科研团队，搭载该实验室的重载无人机系统（Unoccupied Aerial System, UAS）四旋翼与六旋翼平台采集所得。
该数据采集于2017年8月与2018年7月，采集地点位于阿拉斯加州诺姆（Nome）与特勒（Teller）之间的鲍勃·布洛杰特诺姆-特勒纪念高速公路（Bob Blodgett Nome–Teller Memorial Highway）27英里里程碑附近的NGEE Arctic野外站点。
本次数据采集使用了Vulcan Raven X8机身（英国格洛斯特郡米切尔德安）、大疆经纬M600 Pro机身（中国深圳）以及Routescene无人机激光雷达系统（英国苏格兰爱丁堡）。
本激光雷达数据已通过Routescene LidarViewer Pro软件完成基础后处理，生成点云数据（.laz格式文件）。基础处理完成后，研究团队使用CloudCompare软件将不同飞行任务与不同年份的数据合并为单份原始点云。
本数据包包含压缩点云文件（.laz格式）、后处理运动学文件（.csv格式）以及一级（Level 1, L1）处理流程的详细说明。辅助航空器数据、飞行任务参数、气象条件、原始激光雷达数据与影像可在对应科考项目的L0级数据集中获取：2017年的NGA299与2018年的NGA297。

下一代生态系统实验：北极（NGEE Arctic）项目旨在通过深化对富碳北极生态系统及其气候反馈机制的预测性认知，降低地球系统模型中的不确定性。该项目由美国能源部生物与环境研究办公室资助。
NGEE Arctic项目设有两处野外研究站点：1) 位于阿拉斯加州乌特恰维克（原巴罗）附近北坡的巴罗环境观测站（Barrow Environmental Observatory, BEO）内的北极多边形苔原沿海区域；2) 阿拉斯加州诺姆以北苏厄德半岛不连续多年冻土区的多处区域。
通过观测、实验与现有数据集的综合分析，NGEE Arctic项目为多尺度建模提供了更完善的知识库，并助力美国能源部地球系统模型——能源超算地球系统模型（Energy Exascale Earth System Model, E3SM）——尤其是其陆面模型组件（E3SM Land Model Component, ELM）——在全球泛北极尺度上提升过程表征精度。