Data were collected in collaboration between the National Center for Airborne Laser Mapping (NCALM)
project and the Boulder Creek Critical Zone Observatory (CZO)
, 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 with associated shaded relief models. 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-off 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.
Read the FGDC-compliant metadata files that are available for each dataset (in .html, .txt, and .xml formats). These files provide numerous details that may be of interest.
IMPORTANT NOTE: Due to weather and equipment failures the snow-on surveys were flown during 2 different time periods in May, between which there were substantial snow accumulations. Do not combine data from May 5/9, 2010 and May 20/21, 2010.
: Please cite this data release as: Anderson, S.P., Qinghua, G., and Parrish, E.G., 2012, Snow-on and snow-off Lidar point cloud data and digital elevation models for study of topography, snow, ecosystems and environmental change at Boulder Creek Critical Zone Observatory, Colorado: Boulder Creek CZO, INSTAAR, University of Colorado at Boulder, digital media. Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM - http://www.ncalm.org), with project director Qinghua Guo. Collection for Dr. Suzanne Anderson (University of Colorado/INSTAAR, Boulder) as part of the Boulder Creek Critical Zone Observatory (CZO - http://czo.colorado.edu/), funded by National Science Foundation (NSF-0724960). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051.
: Boulder Creek Critical Zone Observatory May 2010 Snow-On Lidar Survey. Distributed by OpenTopography. https://doi.org/10.5069/G9Z31WKD . Accessed: 2022-01-19
: CC BY 4.0
: Gordon Gulch,Betasso Preserve,Green Lakes Valley,Como Creek,Arikaree Glacier,Fourmile Canyon,Fourmile Creek, Bummer's Gulch, Long Gulch, Emerson Gulch, Schoolhouse Gulch, Melvin Gulch, Gold Run, lidar
: 05/05/2010 - 05/09/2010