Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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: 85088
USGS real-time telemetry in support of management USGS real-time telemetry in support of management
No abstract available.
Authors
Brent C. Knights, Marybeth K. Brey, Douglas Appel, Travis J. Harrison, James J. Duncker
Quantifying erosion rates by using terrestrial laser scanning at Malakoff Diggins State Historic Park, Nevada County, California, 2014–17 Quantifying erosion rates by using terrestrial laser scanning at Malakoff Diggins State Historic Park, Nevada County, California, 2014–17
The abandoned hydraulic mine pit at Malakoff Diggins near Grass Valley, California, can produce large volumes of eroded sediment transportable by storm runoff. Sediment-laden water discharged from the pit is a major source of heavy metals to Humbug Creek and the South Yuba River. To develop a comprehensive sediment budget for the Malakoff Diggins mine pit and identify sources of sediment...
Authors
James F. Howle, Charles N. Alpers, Alfred J. Ward, Sandra Bond, Jennifer A. Curtis
Status and trends in the Lake Superior fish community, 2019 Status and trends in the Lake Superior fish community, 2019
The Lake Superior fish community was sampled in 2019 with daytime bottom trawls at 76 nearshore and 35 offshore stations distributed throughout the lake. In the nearshore zone, 25,131 fish from 24 species or morphotypes were collected. The number of species collected at nearshore stations ranged from 0 to 15, with a mean of 5.6 and median of five. Nearshore mean biomass was 5.7 kg/ha...
Authors
Mark R. Vinson, Lori M. Evrard, Owen T. Gorman, Caroline Lynn Rosinski, Daniel Yule
Assessment of continuous oil and gas resources in Jurassic Posidonia Shales of Greece and Albania, 2019 Assessment of continuous oil and gas resources in Jurassic Posidonia Shales of Greece and Albania, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 118 million barrels of continuous oil and 170 billion cubic feet of continuous gas in the Jurassic Posidonia Shale Total Petroleum System of western Greece and southern Albania.
Authors
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Cheryl A. Woodall, Michael E. Brownfield, Kristen R. Marra, Heidi M. Leathers-Miller, Phuong A. Le, Ronald M. Drake
Assessment of continuous oil and gas resources in Jurassic Shales of the eastern Arabian Peninsula, 2019 Assessment of continuous oil and gas resources in Jurassic Shales of the eastern Arabian Peninsula, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 5.6 billion barrels of oil and 109.1 trillion cubic feet of gas in the Jurassic Hanifa-Tuwaiq Total Petroleum System of the Arabian Peninsula.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Marilyn E. Tennyson, Thomas M. Finn, Michael E. Brownfield, Kristen R. Marra, Phuong A. Le, Ronald M. Drake, Scott A. Kinney
Atlantic Salmon (Salmo salar) climate scenario planning pilot report Atlantic Salmon (Salmo salar) climate scenario planning pilot report
Scenario planning is a structured process that embraces uncertainty and explores plausible alternative future conditions under different assumptions to help manage risk and prioritize actions ( Schwartz 1996, Peterson et al. 2003). It has been used by a variety of organizations to explore and help prepare for the future, lends itself well to exploring the uncertainty surrounding changing
Authors
Diane Borggaard, Dori Dick, Jonathan Star, Mike Alexander, M. Bernier, Matt Collins, Kelly Damon-Randall, Robert W. Dudley, Roger Roger Griffis, Sean Hayes, Mike Johnson, Dan Kircheis, John Kocik, Benjamin Letcher, Nate Mantua, Wendy Morrison, Keith Nislow, Vince Saba, R. Saunders, Tim Sheehan, Michelle D. Staudinger
Final Report for Phase 1 - USGS-NE CSC and USFS-NRS Cooperative Research on Climate-Vulnerable Habitats and Species in the Northeast Final Report for Phase 1 - USGS-NE CSC and USFS-NRS Cooperative Research on Climate-Vulnerable Habitats and Species in the Northeast
The US Forest Service (USFS) and Northeast Climate (Adaptation) Science Center (NE CASC) came together to focus research and management cooperation on the topic of the impacts of climate change on forested ecosystems. This work had 3 primary components: 1) modeling headwater stream refugia; 2) investigating resilience and resistance strategies for New England forests; and 3) studying the...
Authors
Keith Nislow, Toni Lyn Morelli
USGS Illinois River catch database and visualization USGS Illinois River catch database and visualization
No abstract available.
Authors
Enrika Hlavacek, Travis J. Harrison, Brent C. Knights, Marybeth K. Brey
USGS geospatial support for unified fishing method USGS geospatial support for unified fishing method
No abstract available.
Authors
Kevin D. Hop, Andrew C. Strassman, Jonathan M. Vallazza, Brent C. Knights
Berea Sandstone petroleum system Berea Sandstone petroleum system
Since 2011, production of sweet high gravity oil from the Upper Devonian Berea Sandstone in northeastern Kentucky has caused the region to become the leading oil producer in the state. Remarkably, Berea oil is being produced at depths of 2,200 ft or less and in an area in which the prospective source rocks—the overlying Mississippian Sunbury Shale and underlying Devonian Shale—are...
Authors
T. Marty Parris, Stephen F. Greb, Cortland F. Eble, Paul C. Hackley, David C. Harris
Transmissivity and geophysical data for selected wells at and near the Idaho National Laboratory, Idaho, 2017–18 Transmissivity and geophysical data for selected wells at and near the Idaho National Laboratory, Idaho, 2017–18
The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, conducted aquifer tests during 2017–18 on 101 wells at and near the Idaho National Laboratory, Idaho, to define the hydraulic characteristics for individual wells. These were short-duration aquifer tests, conducted with a limited number of observations during routine sampling. Pumped intervals (water columns)...
Authors
Brian V. Twining, Neil V. Maimer
Yellowstone River Compact Commission sixty-eighth annual report 2019 Yellowstone River Compact Commission sixty-eighth annual report 2019
No abstract available.
Authors
Seth Davidson