Jemez River Basin Snow-on Lidar Survey

High-resolution Lidar survey covers an area of 280 km² in the upper part of the Jemez River basin, New Mexico. The data collection was funded by the National Science Foundation (NSF) and performed by the National Center for Airborne Laser Mapping (NCALM) during peak snowpack 2010 (March - April 2010). 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, together with the <a href="/gridsphere/gridsphere?gs_action=lidarDataset&cid=geonlidarframeportlet&opentopoID=OTLAS.062012.26913.1">snow-off Lidar survey</a> performed in Jun - July 2010, are being used to estimate snowpack, vegetation biomass and distribution, and bare earth elevations to help better understand and quantify ecosystem structure, geomorphology, and landscape processes within the Critical Zone Observatory.<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>

该高分辨率激光雷达勘测覆盖新墨西哥州杰梅兹河流域上游的280平方公里区域。数据收集工作由美国国家科学基金会（NSF）资助，并由国家空中激光制图中心（NCALM）在2010年积雪高峰期（2010年3月至4月）实施。数据集包含LAS格式的点云图块，基于首级点的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。这些数据集与2010年6月至7月进行的雪后激光雷达勘测相结合，被用于估算积雪、植被生物量及其分布以及裸地高程，有助于更好地理解和量化关键带观测站内的生态系统结构、地貌和景观过程。与该数据集相关的出版物可在国家空中激光制图中心的数据追踪中心（<a href="http://calm.geo.berkeley.edu/ncalm/dtc.html" target="_blank">NCALM's Data Tracking Center</a>）找到。