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.
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40 years strong—Long-time Geoscience Australia, U.S. Geological Survey (USGS) partnership benefits both agencies and the world 40 years strong—Long-time Geoscience Australia, U.S. Geological Survey (USGS) partnership benefits both agencies and the world
In 1979, the Australian Government chose the city of Alice Springs to host a Landsat Ground Station because of its location in central Australia. This location enables satellite coverage of the entire Australian continent. Its antennas have played a key role in supporting international satellite programs over more than 40 years.
Authors
Assessment of undiscovered gas resources of the Sacramento Basin Province in California, 2019 Assessment of undiscovered gas resources of the Sacramento Basin Province in California, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 512 billion cubic feet of gas in the Upper Jurassic–Neogene Total Petroleum System of the Sacramento Basin Province in California.
Authors
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Cheryl A. Woodall, Kristen R. Marra, Heidi M. Leathers-Miller, Phuong A. Le
Earthquake information products and tools from the Advanced National Seismic System (ANSS) Earthquake information products and tools from the Advanced National Seismic System (ANSS)
This Fact Sheet describes post-earthquake products and tools provided by the Advanced National Seismic System (ANSS) through the U.S. Geological Survey Earthquake Hazards Program. The focus is on products that provide situational awareness immediately after significant earthquakes.
Authors
Lisa A. Wald
The effects of management practices on grassland birds—Sedge Wren (Cistothorus stellaris) The effects of management practices on grassland birds—Sedge Wren (Cistothorus stellaris)
Keys to Sedge Wren (Cistothorus stellaris) management include providing tall, dense grasslands with moderate forb coverage and minimizing disturbances during the breeding season. Sedge Wrens have been reported to use habitats with 30–166 centimeters (cm) average vegetation height, 8–80 cm visual obstruction reading, 15–75 percent grass cover, 3–78 percent forb cover, less than or equal...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Barry D. Parkin, Travis L. Wooten, Betty R. Euliss
The effects of management practices on grassland birds—Lesser Prairie-Chicken (Tympanuchus pallidicinctus) The effects of management practices on grassland birds—Lesser Prairie-Chicken (Tympanuchus pallidicinctus)
The key to Lesser Prairie-Chicken (Tympanuchus pallidicinctus) management is maintaining expansive sand shinnery oak (Quercus havardii) or sand sagebrush (Artemisia filifolia) grasslands. Within these grasslands, areas should contain short herbaceous cover for lek sites (that is, an area where male prairie-chickens gather to engage in courtship displays to attract mates); shrubs or tall...
Authors
Brent E. Jamison, Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Christopher M. Goldade, Betty R. Euliss
Assessment of water quality and fecal contamination sources at Hook Pond, East Hampton, New York Assessment of water quality and fecal contamination sources at Hook Pond, East Hampton, New York
Summary The U.S. Geological Survey, in cooperation with the Village of East Hampton, New York, conducted a 1-year study from August 2017 to August 2018 to provide data necessary to improve understanding of the sources of nutrients and pathogens to Hook Pond watershed to allow for possible mitigation or reduction of loads. Chronic eutrophication and recent concern over harmful...
Authors
Shawn C. Fisher, Brendan A. McCarthy, Christopher M. Kephart, Dale W. Griffin
Water Quality of groundwater used for public supply in principal aquifers of the western United States Water Quality of groundwater used for public supply in principal aquifers of the western United States
Groundwater provides nearly half of the Nation’s drinking water. As the Nation’s population grows, the importance of (and need for) high-quality drinking-water supplies increases. As part of a national-scale effort to assess groundwater quality in principal aquifers (PAs) that supply most of the groundwater used for public supply, the U.S. Geological Survey National Water-Quality...
Authors
Celia Z. Rosecrans, MaryLynn Musgrove
2020 Joint Agency Commercial Imagery Evaluation—Remote sensing satellite compendium 2020 Joint Agency Commercial Imagery Evaluation—Remote sensing satellite compendium
The Joint Agency Commercial Imagery Evaluation (JACIE) is a collaboration between five Federal agencies that are major users and producers of satellite land remote sensing data. In recent years, the JACIE group has observed ever-increasing numbers of remote sensing satellites being launched. This rapidly growing wave of new systems creates a need for a single reference for land remote...
Authors
Shankar N. Ramaseri Chandra, Jon Christopherson, Kimberly A. Casey
Detection and measurement of land subsidence and uplift using Global Positioning System surveys and interferometric synthetic aperture radar, Coachella Valley, California, 2010–17 Detection and measurement of land subsidence and uplift using Global Positioning System surveys and interferometric synthetic aperture radar, Coachella Valley, California, 2010–17
Groundwater has been a major source of agricultural, recreational, municipal, and domestic supply in the Coachella Valley of California since the early 1920s. Pumping of groundwater resulted in groundwater-level declines as large as 50 feet (ft) or 15 meters (m) by the late 1940s. Because of concerns that the declines could cause land subsidence, the Coachella Valley Water District (CVWD...
Authors
Michelle Sneed, Justin T. Brandt
Science to support water-resource management in the upper Roanoke River watershed Science to support water-resource management in the upper Roanoke River watershed
Flooding, excessive sedimentation, and high bacteria counts are among the most challenging water resource issues affecting the Upper Roanoke River watershed. These issues threaten public safety, impair the watershed’s living resources, and threaten drinking water supplies, though mitigation is costly and difficult to manage. Urban development, land disturbance, and changing climatic...
Authors
James S. Webber, John D. Jastram
GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps
Introduction This report describes and defines GeMS (for Geologic Map Schema), a new standardized database schema—that is, a database design—for the digital publication of geologic maps. It originally was intended for geologic mapping funded by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey, but its use can be extended to other programs and agencies as...
Authors
Social Values for Ecosystem Services, version 4.0 (SolVES 4.0)—Documentation and user manual Social Values for Ecosystem Services, version 4.0 (SolVES 4.0)—Documentation and user manual
The geographic information system tool, Social Values for Ecosystem Services (SolVES), was developed to incorporate quantified and spatially explicit measures of social values into ecosystem service assessments. SolVES 4.0 provides an open-source version of SolVES, which was designed to assess, map, and quantify the social values of ecosystem services. Social values—the perceived...
Authors
Benson C. Sherrouse, Darius J. Semmens