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This data release accompanies a U.S Geological Survey study that assessed sediment, salinity, and selenium yields following the Dead Dog wildfire in northwestern Colorado. The Dead Dog fire ignited on June 11, 2017, near Rangely, Colorado, and burned over 17,000 acres, including the B2 study area. Two methodologies were used to quantify erosion and associated salinity and sediment yields in the B2 study area: (1) modeled soil loss post-fire using a physically based erosion model, and (2) measured post-fire volumetric soil erosion and deposition using a time series of digital elevation models (DEMs) created from Uncrewed Aerial Vehicle (UAV) imagery. The first methodology used a physically based erosion model, the...
Unmanned Aerial System (UAS) flights were conducted over four stream catchments in Rio Blanco County, Colorado, during the summer of 2016. Two sties had active oil and gas operations within the basin whereas the other two sites did not. Structure from motion (SfM) was used to align raw images and create a dense point cloud, georectified orthoimage, and Digital Elevation Model (DEM) for each basin. A Digital Terrain Model (DTM), or bare earth model, for each basin was created by reclassifying the dense point cloud as either bare ground or other (vegetation, oil and gas infrastructure, etc.) and interpolating the land surface between bare ground points. Ideally, the DTM would always be equal or lower than the DEM;...
This folder contains the orthoimagery, digital elevation model (DEM), digital terrain model (DTM), final surface model, and vegetation classification model for basin A1.
This folder contains the orthoimagery, digital elevation model (DEM), digital terrain model (DTM), final surface model (SRF), and vegetation classification model (Veg) for basin B1.
map background search result map search result map Orthoimagery, digital elevation, digital terrain, final surface, and vegetation classification models for four stream catchments in western Colorado 2016 Orthoimagery for basin A1 Digital terrain model (DTM) for basin A1 Final surface model (SRF) for basin A1 Vegetation classification model (Veg) for basin A1 Orthoimagery for basin A2 Digital elevation model (DEM) for basin A2 Final surface model (SRF) for basin A2 Orthoimagery for basin B1 Digital terrain model (DTM) for basin B1 Final surface model (SRF) for basin B1 Vegetation classification model (Veg) for basin B1 Orthoimagery for basin B2 Digital elevation model (DEM) for basin B2 Final surface model (SRF) for basin B2 Digital terrain model (DTM) for basin B2 Vegetation classification model (Veg) for basin B2 Erosion rates and salinity and selenium yields in a basin near Rangely, Colorado following the 2017 Dead Dog wildfire as modeled by WEPP and measured from UAV Erosion rates and salinity and selenium yields in a basin near Rangely, Colorado following the 2017 Dead Dog wildfire as modeled by WEPP and measured from UAV Final surface model (SRF) for basin A1 Orthoimagery for basin A1 Digital terrain model (DTM) for basin A1 Vegetation classification model (Veg) for basin A1 Orthoimagery for basin B2 Final surface model (SRF) for basin B2 Vegetation classification model (Veg) for basin B2 Digital elevation model (DEM) for basin B2 Digital terrain model (DTM) for basin B2 Orthoimagery for basin A2 Digital elevation model (DEM) for basin A2 Final surface model (SRF) for basin A2 Vegetation classification model (Veg) for basin B1 Orthoimagery for basin B1 Digital terrain model (DTM) for basin B1 Final surface model (SRF) for basin B1 Orthoimagery, digital elevation, digital terrain, final surface, and vegetation classification models for four stream catchments in western Colorado 2016