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: 84730
Potential risks of vegetation treatments to introduce and increase invasive annual grasses in rangelands of Montana, North Dakota, and South Dakota—A science synthesis to inform National Environmental Policy Act analyses Potential risks of vegetation treatments to introduce and increase invasive annual grasses in rangelands of Montana, North Dakota, and South Dakota—A science synthesis to inform National Environmental Policy Act analyses
The U.S. Geological Survey is working with Federal land management agencies to develop a series of planned structured science syntheses to support environmental effects analyses that agencies conduct under the National Environmental Policy Act (NEPA). This report synthesizes science information relevant to environmental effects analyses concerned with potential increases in the...
Authors
Aaron N. Johnston, David J. A. Wood, Kyle Ebenhoch, Tait K. Rutherford, Logan M. Maxwell, Sarah K. Carter
Proceedings of the Deepwater Hydrate Coring Expedition UT-GOM2-2 Proceedings of the Deepwater Hydrate Coring Expedition UT-GOM2-2
This report was the result of a scientific collaboration between the following institutions The University of Texas at Austin (UT), DOE, NETL, the United States Geological Survey (USGS), the Bureau of Ocean Energy Management (BOEM), The Ohio State University, Columbia University, University of New Hampshire, Oregon State University, University of Washington, Tufts University, Colorado...
Authors
Peter Flemings, Carla Thomas, Stephen C. Phillips, Timothy Collett, Ann E. Cook, Evan Solomon, Frederick S. Colwell, Joel E. Johnson, David Awwiller, Irita Aylward, Athma Bhandari, Donald Brooks, Jessica Z. Buser-Young, Alejandro Cardona, Michael Casso, Rachel Coyte, Tom Darrah, Marcy Davis, Brandon Dugan, Dan Duncan, John T. Germaine, Melanie Holland, Jesse Houghton, Saffron Martin, N. Tanner Mills, Michael Mimitz, Daniel Minarich, Yuki Morono, Zachary Murphy, Joshua O’Connell, Ethan Petrou, Tom Pettigrew, John W. Pohlman, Alexey Portnov, Marcie Purkey Phillips, Thomas Redd, Derek E. Sawyer, Peter Schultheiss, Kelly Shannon, Cathal Small, Camille Sullivan, Kayla Tozier, Man-Yin Tsang, Camila Van Der Maal, William F. Waite, Taylor Walton
Rebuilding a volcano one lava flow at a time—Visualizing the lava dome-building eruption in the crater of Mount St. Helens, 1982–1986 Rebuilding a volcano one lava flow at a time—Visualizing the lava dome-building eruption in the crater of Mount St. Helens, 1982–1986
Between 1980 and 1986, the U.S. Geological Survey made a series of 1:2,000-scale topographic contour maps from aerial photographic surveys to monitor the eruption. These maps were made for operational purposes and were not intended for publication. Since then, advances in technology made it possible to digitize the original, highly detailed hardcopy maps and derive new digital data...
Authors
Joseph A. Bard, Christina M. Friedle, Lorie Bartee, Brett C. Dierker, Joseph M. Ganick, Nichola M. Gregory, Kenton R. Hill, Jude G. Klug, Aerial Kruger, Dawson T. Mooney, Reun T. Morrison, Isa I. Rojas, Phil Rollo, Shawn A. Stanton, Bre Stewart, Blair E. Stuhlmuller, Adam D. Zyla
Computing discharge using the entropy-based probability concept Computing discharge using the entropy-based probability concept
This report describes the techniques and methods for computing the mean-channel velocity and discharge using the entropy-based probability concept (probability concept). The method is an alternative to or augments standard streamgaging methods adopted by the U.S. Geological Survey (USGS). Although sensor technology for measuring the mean velocity and discharge has advanced, standard...
Authors
John W, Fulton, Frank L. Engel, Jack R. Eggleston, Chao-Lin Chiu
Regional hydraulic geometry characteristics of stream channels in the Boston Mountains in Arkansas Regional hydraulic geometry characteristics of stream channels in the Boston Mountains in Arkansas
Many stream-channel infrastructure, habitat enhancement, and restoration projects are undertaken on streams throughout Arkansas by Federal, State, and local agencies as well as by private organizations and businesses with limited data on local geomorphology and streamflow conditions. Equations that relate drainage area above stable stream reaches to the basin characteristics, bankfull...
Authors
Daniel E. Kroes, Laura Suzanne Ruhl-Whittle, Allegra C. Pieri, Aaron L. Pugh
Multidecadal change in pesticide concentrations relative to human health benchmarks in the Nation’s groundwater Multidecadal change in pesticide concentrations relative to human health benchmarks in the Nation’s groundwater
Groundwater-quality trend assessments identify aquifers that are responding to changes in pesticide use and the compounds that may pose a threat to water availability. The U.S. Geological Survey has been monitoring pesticide concentrations in groundwater for 25 principal aquifers across the conterminous United States since 1993. The groundwater well locations represent a range of soils...
Authors
Sarah M. Stackpoole, Bruce D. Lindsey, Cee S. Nell