Skip to main content
Advanced Search

Filters: partyWithName: Todd M Preston (X) > partyWithName: U.S. Geological Survey (X)

26 results (83ms)   

View Results as: JSON ATOM CSV
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;...
thumbnail
The data set contains temporal chloride concentrations (mg/L) and specific conductance (uS/cm) values for 32 wetlands and groundwater monitoring wells as well as the date(s) sampled and the laboratory where the water quality analyses were conducted. The ratio of chloride concentration to specific conductance is referred to as the Contamination Index. In this region, values greater than 0.035 are used to identify water quality samples that are contaminated with co-produced water from energy development.
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 Water quality data from the Goose Lake Study Site Eastern Montana 1989-2018 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 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 Water quality data from the Goose Lake Study Site Eastern Montana 1989-2018