Snow depth was calculated for the general area of Reynolds Mountain East in Reynolds Creek Experimental Watershed using lidar data collected in November 10-18, 2007 (snow off) and March 19, 2009 (snow on). The raw point clouds were filtered using the BCAL Lidar Tools and then 2007 and 2009 point clouds were georeferenced to each other. The point clouds were then rasterized to 1 m and the 2007 bare earth raster was subtracted from the 2009 snow on raster to create a 1 m snow depth product. (https://bcal.boisestate.edu/tools/lidar and https://github.com/bcal-lidar/tools/wiki/BareDEM).
Data acquisition and processing were funded by the Bureau of Land Management Owyhee Uplands Pilot Project, US Department of Agriculture Cooperative States Research Education and Extension Service SGP award 2005- 34552-15828, Idaho NSF EPSCoR Program and the National Science Foundation under award number EPS-0447689, Idaho State University, U. S. Forest Service Rocky Mountain Research Station, University of Idaho, and the USDA Agricultural Research Service, Northwest Watershed Research Center.
Data collection: The LiDAR survey was conducted using a Leica ALS50 Phase II laser mounted in a Cessna Caravan 208B. The sensor scan angle was ±14 degrees from nadir with a pulse rate designed to yield an average native density (number of pulses emitted by the laser system) of ? 4 points per square meter over terrestrial surfaces. The Leica ALS50 Phase II system allows up to four range measurements (returns) per pulse, and all discernable laser returns are processed for the output dataset. To accurately solve for laser point position (geographic coordinates x, y, z), the positional coordinates of the airborne sensor and the attitude of the aircraft are recorded continuously throughout the LiDAR data collection mission. Aircraft position is measured twice per second (2 Hz) by an onboard differential GPS unit. Aircraft attitude is measured 200 times per second (200 Hz) as pitch, roll and yaw (heading) from an onboard inertial measurement unit (IMU). To allow for post-processing correction and calibration, aircraft/sensor position and attitude data are indexed by GPS time.
LiDAR, snow, Reynolds Creek, RCEW, CZO, digital elevation model, DEM
XML is in ISO-19115 geographic metadata format, compatible with ESRI Geoportal Server.
Citation for This Dataset
Glenn, Nancy. 2009. LiDAR-derived Snow-on Digital Elevation Model of Reynolds Creek Experimental Watershed LiDAR (1 meter). Boise State University, Boise Aerospace Center Laboratory. Boise, ID.
Citation for This Webpage
Boise State University; Boise Aerospace Center Laboratory; Nancy Glenn (2009). "CZO Dataset: Reynolds Creek - LiDAR, Snow Depth (2009) - Snow-Depth." Retrieved 20 May 2019, from http://criticalzone.org/reynolds/data/dataset/3931/
US Department of Agriculture Cooperative States Research Education and Extension Service SGP award 2005- 34552-15828
National Science Foundation EPS-0447689
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