Susquehanna Shale Hills Critical Zone Observatory: Leaf On Survey

This high-resolution lidar survey covers an area of 209 km² located 10 miles southwest of State College, Pennsylvania. The data collection was funded by the National Science Foundation (NSF) and performed by the National Center for Airborne Laser Mapping (NCALM) during peak leaf-on and leaf-off conditions in 2010 (July 2010 and December 2010, respectively). The dataset contains point cloud tiles in LAS format, 1 m Digital Surface Model (DSM) derived using first-stop points, 1 m Digital Elevation Model (DEM) derived using ground-class points and 1 m hill shade dataset derived from DEM. These datasets were used to estimate vegetation biomass and distributions, provide bare earth elevations, and to assist with prediction of Critical Zone creation and structure.<p><br>Publications associated with this dataset can be found at <a href="http://calm.geo.berkeley.edu/ncalm/dtc.html" target="_blank">NCALM's Data Tracking Center</a></p>

本高分辨率激光雷达测绘覆盖了位于宾夕法尼亚州州立大学西南方向10英里处的209平方公里区域。该数据收集项目由美国国家科学基金会（NSF）资助，并由国家航空激光测绘中心（NCALM）在2010年的树叶茂盛和落叶期（分别于2010年7月和12月）执行。数据集包含LAS格式的点云瓦片、基于首停点的1米数字地表模型（DSM）、基于地面分类点的1米数字高程模型（DEM）以及由DEM派生的1米阴影数据集。这些数据集被用于估算植被生物量和分布、提供裸地高程以及辅助预测关键地带的形成和结构。与该数据集相关的出版物可在<a href="http://calm.geo.berkeley.edu/ncalm/dtc.html" target="_blank">NCALM数据跟踪中心</a>找到。