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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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Water-resources data for the United States: water year 2012 Water-resources data for the United States: water year 2012
Water resources data are published annually for use by engineers, scientists, managers, educators, and the general public. These archival products supplement direct access to current and historical water data provided by NWISWeb. Beginning with Water Year 2006, annual water data reports are available as individual electronic Site Data Sheets for the entire Nation for retrieval, download...
Authors
Water Resources Division U.S. Geological Survey
Waterbird nest monitoring program in San Francisco Bay (2005-10) Waterbird nest monitoring program in San Francisco Bay (2005-10)
Historically, Forster’s Terns (Sterna forsteri), American Avocets (Recurvirostra americana), and Black-necked Stilts (Himantopus mexicanus) were uncommon residents of San Francisco Bay, California (Grinnell and others, 1918; Grinnell and Wythe, 1927; Sibley, 1952). Presently, however, avocets and stilts are the two most abundant breeding shorebirds in San Francisco Bay (Stenzel and...
Authors
Joshua T. Ackerman, Mark P. Herzog
waterData--An R package for retrieval, analysis, and anomaly calculation of daily hydrologic time series data, version 1.0 waterData--An R package for retrieval, analysis, and anomaly calculation of daily hydrologic time series data, version 1.0
Hydrologic time series data and associated anomalies (multiple components of the original time series representing variability at longer-term and shorter-term time scales) are useful for modeling trends in hydrologic variables, such as streamflow, and for modeling water-quality constituents. An R package, called waterData, has been developed for importing daily hydrologic time series...
Authors
Karen R. Ryberg, Aldo V. Vecchia
Watershed modeling applications in south Texas Watershed modeling applications in south Texas
Watershed models can be used to simulate natural and human-altered processes including the flow of water and associated transport of sediment, chemicals, nutrients, and microbial organisms within a watershed. Simulation of these processes is useful for addressing a wide range of water-resource challenges, such as quantifying changes in water availability over time, understanding the...
Authors
Diana E. Pedraza, Darwin J. Ockerman
Watershed scale response to climate change--Black Earth Creek Basin, Wisconsin Watershed scale response to climate change--Black Earth Creek Basin, Wisconsin
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Randall J. Hunt, John F. Walker, Steven M. Westenbroek, Lauren E. Hay, Steven L. Markstrom
Watershed scale response to climate change--Cathance Stream Basin, Maine Watershed scale response to climate change--Cathance Stream Basin, Maine
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Robert W. Dudley, Lauren E. Hay, Steven L. Markstrom, Glenn A. Hodgkins
Watershed scale response to climate change--Clear Creek Basin, Iowa Watershed scale response to climate change--Clear Creek Basin, Iowa
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Daniel E. Christiansen, Lauren E. Hay, Steven L. Markstrom
Watershed scale response to climate change--East River Basin, Colorado Watershed scale response to climate change--East River Basin, Colorado
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
William A. Battaglin, Lauren E. Hay, Steven L. Markstrom
Watershed scale response to climate change--Feather River Basin, California Watershed scale response to climate change--Feather River Basin, California
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Kathryn M. Koczot, Steven L. Markstrom, Lauren E. Hay
Watershed scale response to climate change--Flint River Basin, Georgia Watershed scale response to climate change--Flint River Basin, Georgia
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Lauren E. Hay, Steven L. Markstrom
Watershed scale response to climate change--Naches River Basin, Washington Watershed scale response to climate change--Naches River Basin, Washington
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
Mark C. Mastin, Lauren E. Hay, Steven L. Markstrom
Watershed scale response to climate change--Pomperaug River Watershed, Connecticut Watershed scale response to climate change--Pomperaug River Watershed, Connecticut
General Circulation Model simulations of future climate through 2099 project a wide range of possible scenarios. To determine the sensitivity and potential effect of long-term climate change on the freshwater resources of the United States, the U.S. Geological Survey Global Change study, "An integrated watershed scale response to global change in selected basins across the United States"...
Authors
David M. Bjerklie, Lauren E. Hay, Steven L. Markstrom