Geomorphic Change Detection Using Drone-based Lidar on Fountain Creek, Colorado

Submitted by atripp on Tue, 06/08/2021 - 15:56

Fountain Creek, a tributary to the Arkansas River, is located along the Colorado Front Range. Over the last 100 years, considerable changes in land use and water use have occurred within the Fountain Creek watershed. To meet the needs of the growing population, water is imported from outside the watershed by means of trans-mountain diversions, and most recently, the Southern Delivery System (SDS).

Innovative Technologies to Monitor a New Crater Lake at Kīlauea Volcano

Submitted by atripp on Thu, 06/03/2021 - 15:18

From May to September 2018, Kīlauea volcano experienced its largest eruption in more than 200 years. The eruption drained the summit lava lake and shallow magma reservoir, covering the volcano’s lower East Rift Zone in 35 square-kilometer of lava. Successive collapse events at the summit resulted in a collapsed crater more than 500-meter deep.

Developing Bare-Earth Digital Elevation Models from Structure from Motion Data on Barrier Islands

Submitted by atripp on Thu, 06/03/2021 - 09:57

Barrier islands are dynamic environments. Under calm conditions, they are gradually shaped by currents, waves, and tides; during hurricanes and other extreme storms, they can evolve within hours to days. Unmanned aircraft systems (UAS) can collect monitoring data, especially elevation information, via Structure from Motion (SfM) techniques, with a temporal resolution that is well-suited for these dynamic environments.

Structure from Motion Modeling Using Unmanned Aircraft Systems to Support Paleontological Surveys

Submitted by atripp on Tue, 06/01/2021 - 14:15

The USGS National Unmanned Systems Project Office (NUPO), in collaboration with the Denver Museum of Nature & Science, constructed a photogrammetric three-dimentional digital surface model (DSM) and orthometric image map via an unmanned aircraft system (UAS) using Structure from Motion (SfM) techniques.

Bird’s-Eye View of a Dye Tracer Test Using UAS

Submitted by atripp on Tue, 06/01/2021 - 10:20

Monastery Run Wetland 1 near Latrobe, Pennsylvania, is a passive mine water treatment system constructed in 1997–1998 to treat multiple discharges from an abandoned underground mine. The OSMRE Technical Support Division assisted the Pennsylvania Department of Environmental Protection (PA DEP) with diagnosing issues and improving the effectiveness of the water treatment system.

Monitoring Jurassic Dinosaur Tracks with UAS

Submitted by atripp on Wed, 05/19/2021 - 10:46

The Red Gulch Dinosaur Tracksite near Shell, Wyoming, showcases an exposed dry wash with hundreds of Jurassic, carnivorous dinosaur tracks preserved in the rock. The tracks, formed approximately 167 million years ago, were discovered by members of the public in 1997. The BLM has created a 40-acre recreation site around this quarter-acre tracksite and is tasked with preserving the tracks and their value for the public.

Combining Elevation Data Sources and Statistical Simulation Improves Long-Term Mining Production Verification Analysis

Submitted by atripp on Tue, 05/18/2021 - 11:36

The BLM’s National Operations Center (NOC) frequently assists field offices with production verification at mine sites across the West, but these analyses are often limited by a lack of historical data.