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Reports

Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 84719

Assessment of conventional and continuous oil and gas resources in the Lewis Shale in the Southwestern Wyoming Province, Wyoming and Colorado, 2023 Assessment of conventional and continuous oil and gas resources in the Lewis Shale in the Southwestern Wyoming Province, Wyoming and Colorado, 2023

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean conventional and continuous resources of 294 million barrels of oil and 11 trillion cubic feet of gas in the Lewis Shale in the Southwestern Wyoming Province, Wyoming and Colorado.
Authors
Jane S. Hearon, Christopher J. Schenk, Thomas M. Finn, Benjamin G. Johnson, Sarah E. Gelman, Jenny H. Lagesse, Cheryl A. Woodall, Tracey J. Mercier, Heidi M. Leathers-Miller, Kira K. Timm, Ronald M. Drake, Andrea D. Cicero, Geoffrey S. Ellis, Michael H. Gardner, Phuong A. Le, Scott S. Young

Assessing habitat use and population dynamics of fisheries resources at Kaloko Fishpond Assessing habitat use and population dynamics of fisheries resources at Kaloko Fishpond

Throughout Hawai'i, fishponds are considered by their local communities as important cultural touchstones, a source of local, sustainably produced food, and an important component to the development of community-based management for nearshore fisheries. Within Kaloko-Honokōhau National Historical Park, the restoration of Kaloko Fishpond for traditional aquaculture management is a goal of...
Authors
Timothy B. Grabowski, Ricky Tabandera, Nathaniel Greenwald, Annie Larson

Quantitative risk of earthquake disruption to global copper and rhenium supply Quantitative risk of earthquake disruption to global copper and rhenium supply

Earthquakes have the potential to substantially affect mining operations, potentially leading to supply chain disruptions and adversely affecting the global economy. This study explores the quantification of earthquake risk to copper and rhenium commodity supply by examining the spatial concentration of high earthquake hazard areas and the commodity-specific mining, smelting, and...
Authors
Kishor S. Jaiswal, Nico Luco, Emily K. Schnebele, Nedal T. Nassar, Donya Otarod

Assessment of long-term changes in surface-water extent within Klamath Marsh, south-central Oregon, 1985–2021 Assessment of long-term changes in surface-water extent within Klamath Marsh, south-central Oregon, 1985–2021

The annual maximum extent of surface water in Klamath Marsh has naturally fluctuated in response to periods of wet and dry conditions in the surrounding basin. Field observations during the 2010s indicate that the annual maximum extent of surface water has been declining and the marsh is not responding to hydrologic inputs as it had historically. This report describes the results of a...
Authors
Joseph J. Kennedy, Henry M. Johnson, Stephen B. Gingerich

Environmental DNA (eDNA) surveillance of the federally threatened Slender Chub (Erimystax cahni) in the Clinch River and Powell River Environmental DNA (eDNA) surveillance of the federally threatened Slender Chub (Erimystax cahni) in the Clinch River and Powell River

The slender chub (Erimystax cahni) is a federally threatened fish native to and geographically restricted to eastern North America. More specifically, the Powell, Clinch, and lower Holston Rivers in Tennessee were historical collection areas. Habitat degradation from multiple sources, including surface mining, agriculture, dams, and urbanization, is associated with the decline of this...
Authors
Robert T.R. Paine, Mark W. Rogers, Amanda E. Rosenberger

The 3D Elevation Program—Supporting Michigan’s economy The 3D Elevation Program—Supporting Michigan’s economy

High-quality elevation data are proving to be a resource of value in addressing many important economic issues in Michigan. The expanding statewide availability of current and accurate high-resolution elevation data can help support agriculture and precision farming, natural resource conservation, flood risk management, and geologic resource assessment and hazard mitigation. Water supply...
Authors
Cynthia M. Rachol

Restoration of common loon (Gavia immer) in Minnesota—2023 annual report Restoration of common loon (Gavia immer) in Minnesota—2023 annual report

The Deepwater Horizon mobile drilling platform exploded on April 20, 2010. The resulting massive oil spill injured natural resources in the Gulf of Mexico, including wintering common loons (Gavia immer). We report on activities completed under the “Restoration of Common Loons in Minnesota” project in calendar year 2023, which was funded by the Open Ocean Trustee Implementation Group. In...
Authors
William S. Beatty, Kelly Amoth, Katelyn Bergstrom, Luke J. Fara, Brian R. Gray, Steven C. Houdek, Jayden Jech, Kevin P. Kenow, Robert Rabasco, Spencer Rettler, Michael Wellik, Steven Yang

Assessment of undiscovered conventional oil and gas resources of offshore East Africa and the Seychelles, 2022 Assessment of undiscovered conventional oil and gas resources of offshore East Africa and the Seychelles, 2022

Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 5.1 billion barrels of oil and 79.1 trillion cubic feet of gas in offshore East Africa and the Seychelles.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Andrea D. Cicero, Ronald M. Drake, Geoffrey S. Ellis, Thomas M. Finn, Michael H. Gardner, Sarah E. Gelman, Jane S. Hearon, Benjamin G. Johnson, Jenny H. Lagesse, Heidi M. Leathers-Miller, Kristen R. Marra, Kira K. Timm, Scott S. Young

NASA Champions 2024: Data strategies for when to use cloud, coding strategies for parallelization, & first examples of big science in the Cloud NASA Champions 2024: Data strategies for when to use cloud, coding strategies for parallelization, & first examples of big science in the Cloud

From April-May 2024, the NASA Mentors who span eleven Distributed Active Archive Centers (DAACs) co-led the third Champions Cohort with the NASA Openscapes project team, this year focusing on, teaching lessons they adapted for geospatial and cloud analysis. The Cohort included nine international research teams from academia and government that were curious about working with NASA...
Authors
Michele Thornton, Catalina Taglialatela, Luis Lopez, Matt Fisher, Alexis Hunzinger, Mahsa Jami, Brianna M. Lind, Cassie Nickles, Andy Teucher, Aronne Merrelli, Erin Robinson, Julie Lowndes

Delineating draft inventory analysis units for National Scenic and Historic Trails inventory, assessment, and monitoring programs Delineating draft inventory analysis units for National Scenic and Historic Trails inventory, assessment, and monitoring programs

As of 2024, there are 32 National Scenic and Historic Trails (NSHTs) in the system administered by the Bureau of Land Management (BLM), National Park Service, and U.S. Department of Agriculture Forest Service. The BLM administers, manages, and protects 19 of these trails as part of its system of national conservation lands. Various laws, regulations, and policies require that the BLM...
Authors
Sarah M. Lindley, Emily J. Wilkins, Carin Farley, Karla Rogers, Rudy Schuster

The Native American Research Assistantship Program—Building capacity for Indigenous water-resources monitoring The Native American Research Assistantship Program—Building capacity for Indigenous water-resources monitoring

Intertribal networks for collecting and analyzing hydrologic and environmental data are growing. The U.S. Geological Survey can be a key partner with Tribal Nations in the further development of network capacity. A first step is the internship opportunity available through the partnership between the USGS and The Wildlife Society: The Native American Research Assistantship Program.
Authors
Electa Hare-Red Corn, Robert F. Breault, Jason R. Sorenson

A predictive analysis of water use for Providence, Rhode Island A predictive analysis of water use for Providence, Rhode Island

To explain the drivers of historical water use in the public water systems (PWSs) that serve populations in Providence, Rhode Island, and surrounding areas, and to forecast future water use, a machine-learning model (cubist regression) was developed by the U.S. Geological Survey in cooperation with Providence Water to model daily per capita rates of domestic, commercial, and industrial...
Authors
Catherine A. Chamberlin
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