Boulder Creek Critical Zone Observatory August 2010 Snow-Off Lidar Survey

2010 Boulder Creek, Colorado Snow-Off LiDAR Surveys<br><br>LiDAR was acquired for a 600 km² area inside the Boulder Creek watershed during a snow-off (August, 2010) time slice, near Boulder Colorado. This data was collected in collaboration between the <a href="https://ncalm.cive.uh.edu/" target="_blank">National Center for Airborne Laser Mapping (NCALM)</a> project and the <a href="http://czo.colorado.edu/" target="_blank">Boulder Creek Critical Zone Observatory (CZO)</a>, both funded by the National Science Foundation (NSF). The dataset contains 1 m Digital Surface Models (first-stop), Digital Terrain Models (bare-earth), and 10 points/m² LAS-formated point cloud tiles. The DSMs and DTMs are available in GeoTIFF format, approx. 1-2 GB each, with associated shaded relief models, for a total of 15 GB of data. The Digital Terrain Model (DTM) is a ground-surface elevation dataset better suited for derived layers such as slope angle, aspect, and contours. Accessory layers consist of index map layers for point cloud tiles, DEM extent, and flight lines. Other LiDAR DSMs, DTMs, and point cloud data available in this series include snow-on data for 2010. Together, the LiDAR Digital Elevation Models (DEM) and point cloud data will be of interest to land managers, scientists, and others for study of topography, snow, ecosystems and environmental change. The Boulder Creek CZO will be using the LiDAR data to further their mission of focusing on how water, atmosphere, ecosystems, & soils interact and shape the Earth's surface. The "Critical Zone" lies between rock and sky. It is essential to life - including human food production - and helps drive Earth's carbon cycle, climate change, stream runoff, and water quality.<br><br>PLEASE READ the <a href="https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/BcCZO_10_SnowOff_Metadata_Reports.zip">FGDC-compliant metadata files</a> that are available for each dataset (in .html, .txt, and .xml formats). These files provide numerous details that may be of interest. Also included are flight lines, survey reports, reference materials, and DEM extent shapefiles.<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>

2010年博尔德克里克，科罗拉多州雪后激光雷达测绘调查

在2010年8月的雪后（雪融期）时段，于科罗拉多州博尔德附近，对博尔德克里克流域内600平方公里区域进行了激光雷达测绘。该数据收集工作由国家航空航天激光测绘中心（National Center for Airborne Laser Mapping，简称NCALM）项目与博尔德克里克关键带观测站（Boulder Creek Critical Zone Observatory，简称CZO）合作完成，两项工作均获得美国国家科学基金会（National Science Foundation，简称NSF）的资助。数据集包含1米分辨率的数字地表模型（DSM，首次反射），数字地形模型（DTM，裸地模型），以及每平方米10点的LAS格式点云瓦片。DSM和DTM以GeoTIFF格式提供，每个约1-2GB，附带相关阴影模型，总计约15GB数据。数字地形模型（DTM）是地面高程数据集，更适用于生成坡度角、方位和等高线等派生层。辅助层包括点云瓦片索引图层、数字高程模型（DEM）范围和飞行航线。本系列中还包括2010年的雪覆盖激光雷达DSM、DTM和点云数据。LiDAR数字高程模型（DEM）和点云数据将吸引土地管理者、科学家及其他人士，用于研究地形、积雪、生态系统和环境变化。博尔德克里克关键带观测站将利用激光雷达数据进一步推进其使命，即专注于研究水、大气、生态系统和土壤如何相互作用并塑造地球表面。‘关键带’位于岩石与天空之间。它是生命（包括人类食物生产）的基石，并驱动地球碳循环、气候变化、溪流径流和水质量。

请查阅每个数据集的符合FGDC规范的元数据文件（.html、.txt和.xml格式），这些文件提供了众多可能感兴趣的详细信息。此外，还包括飞行航线、调查报告、参考资料和DEM范围形状文件。

与该数据集相关的出版物可在国家航空航天激光测绘中心的数据追踪中心（NCALM's Data Tracking Center）找到。