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.

Shorebird Habitat Usage, Change on Gulf Barrier Islands

Submitted by atripp on Tue, 04/07/2020 - 09:12

Migratory species depend on a chain of habitats for survival, including breeding habitats, overwintering sites, and migratory stopover locations. Barrier islands in the northern Gulf of Mexico provide habitat for all three of these life-history phases and are important habitat for many shorebird species, such as Red Knots, Piping Plovers, and Western Sandpipers.

Using Temperature to Detect Active Carbonate Precipitation in Lakes

Submitted by atripp on Mon, 04/06/2020 - 13:10

Carbonate precipitation can occur where groundwater enters lakes and supplies chemicals missing from the lake, creating carbonate mounds called tufa mounds or microbialites. These precipitates can often be associated with microbes that either create micro-environments that encourage precipitation or act as templates for precipitation.

Unmanned Aircraft Systems-based Remote Sensing of River Discharge Using Bathymetric Lidar and Thermal Particle Image Velocimetry

Submitted by atripp on Mon, 04/06/2020 - 11:24

The USGS is developing innovative technologies and approaches for measuring river discharge using remotely sensed data. Given the expense associated with remote sensing from conventional aerial platforms (e.g., helicopter, airplane), unmanned aircraft systems (UAS) offer hydrographers a lower cost alternative for data acquisition.

Remote Sensing of Streamflow in Alaskan Rivers

Submitted by atripp on Mon, 04/06/2020 - 10:52

Obtaining timely, accurate information on streamflow in Alaska’s rivers is difficult because gaging stations are sparse, with many located in remote inaccessible areas. Even for established gages, the maintenance and periodic measurements required to operate a gage are logistically challenging and can place personnel at risk, particularly during high flows.

Using Imagery to Crowdsource The National Map

Submitted by atripp on Fri, 04/03/2020 - 11:05

The National Map Corps (TNMCorps), a crowdsourced mapping project, relies on volunteers to assist the USGS National Geospatial Program by collecting and editing man-made structures data for The National Map. Through their participation, volunteers make important contributions to the USGS’s ability to provide the Nation with accurate mapping information.