CJCZO -- LiDAR -- Terrestrial Laser Scan -- Jemez River Basin -- (2011-2013)

Terrestrial Laser Scan (TLS) datasets were collected for various projects pursued by the University of Arizona Critical Zone Observatory located in the Jemez River Basin within the Valles Caldera National Preserve. Three locations were TLS surveyed a total of four times over the course of two years. The locations are the Debris1 alluvial fan, Debris2 alluvial fan, and the BurnZOB small upland basin. The four surveys were completed after the Las Conchas fire in the summer of 2011. The approximate dates for each scan were 8/19/11, 6/4/12, 9/22/12, and 5/14/13.

All TLS data was collected using a Leica C10 scanner set up in the field by Jon Pelletier and Caitlin Orem. All scans were scanned for both points (on the medium scan setting) and photographs (meaning pictures were taken to then extrapolate RGB data from for each point). GPS data was collected in the field with a Leica Real-Time Kinematic Global Positioning System (RTK-GPS) unit. At each scan station at least three permanently located targets were scanned so all scans at a study site could be registered to one point cloud. At least three targets at each study site were surveyed with Real-Time Kinematic Global Positioning System (RTK-GPS) receivers until a temporary accuracy reading of less than 0.01 m was reached in each of the four cardinal directions.

All scans for each individual survey were uploaded to Leica Cyclone so scans could be registered together into one point cloud. GPS data for the base station was processed in Leica Geo Office and imported into Cyclone to georeference the point cloud. Data was then exported from Cyclone in .pts format (columns of x, y, z, intensity, r, g, b). Cloud Compare software was used to take the .pts file to .las.

Horizontal coordinate system is UTM 13N WGS84 METERS.

Vertical coordinate system is NAVD88.

陆基激光扫描（TLS）数据集系由亚利桑那大学关键带观测站所开展的多项项目收集而成，该观测站位于瓦尔莱斯卡尔德拉国家公园内的杰梅斯河流域。在两年期间，对三个地点进行了四次TLS测量，这些地点包括Debris1冲积扇、Debris2冲积扇以及BurnZOB小型内陆盆地。这四次测量均是在2011年夏季Las Conchas大火之后完成的，具体的扫描日期分别为8月19日、6月4日、9月22日以及5月14日。所有TLS数据均由Jon Pelletier和Caitlin Orem在野外使用Leica C10扫描仪采集，扫描仪在野外进行设置。所有扫描均进行点云（中等扫描设置）和照片（即拍摄照片以便从每个点提取RGB数据）的扫描。GPS数据使用Leica实时动态差分全球定位系统（RTK-GPS）单元在野外收集。在每个扫描站上，至少扫描了三个永久性放置的目标，以确保研究地点的所有扫描都能注册到一个点云中。在每个研究地点，使用实时动态差分全球定位系统（RTK-GPS）接收器对至少三个目标进行测量，直到四个正方向中的每个方向都达到小于0.01米的临时精度读数。每个独立调查的所有扫描均上传至Leica Cyclone，以便将扫描注册到一个点云中。基站的GPS数据在Leica Geo Office中处理，并导入Cyclone以进行点云的地理参照。然后，数据从Cyclone导出为.pts格式（x、y、z、强度、r、g、b列）。使用Cloud Compare软件将.pts文件转换为.las格式。水平坐标系为UTM 13N WGS84米。垂直坐标系为NAVD88。