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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User manuals for the Delaware River Basin Water Availability Tool for Environmental Resources (DRB–WATER) and associated WATER application utilities User manuals for the Delaware River Basin Water Availability Tool for Environmental Resources (DRB–WATER) and associated WATER application utilities
The Water Availability Tool for Environmental Resources (WATER) is a decision support system (DSS) for the nontidal part of the Delaware River Basin (DRB) that provides a consistent and objective method of simulating streamflow under historical, forecasted, and managed conditions. WATER integrates geospatial sampling of landscape characteristics, including topographic and soil properties...
Authors
Tanja N. Williamson, Jeremiah G. Lant
User’s guide to the North Pacific Pelagic Seabird Database 2.0 User’s guide to the North Pacific Pelagic Seabird Database 2.0
The North Pacific Pelagic Seabird Database (NPPSD) was created in 2005 to consolidate data on the oceanic distribution of marine bird species in the North Pacific. Most of these data were collected on surveys by counting species within defined areas and at known locations (that is, on strip transects). The NPPSD also contains observations of other bird species and marine mammals. The...
Authors
Gary S. Drew, John F. Piatt, Martin Renner
USGS Arctic Science Strategy USGS Arctic Science Strategy
The United States is one of eight Arctic nations responsible for the stewardship of a polar region undergoing dramatic environmental, social, and economic changes. Although warming and cooling cycles have occurred over millennia in the Arctic region, the current warming trend is unlike anything recorded previously and is affecting the region faster than any other place on Earth, bringing...
Authors
Mark Shasby, Durelle Smith
USGS compilation of geographic information system (GIS) data of coal mines and coal-bearing areas in Mongolia USGS compilation of geographic information system (GIS) data of coal mines and coal-bearing areas in Mongolia
Geographic information system (GIS) information may facilitate energy studies, which in turn provide input for energy policy decisions. The U.S. Geological Survey (USGS) has compiled GIS data representing coal mines, deposits (including those with and without coal mines), occurrences, areas, basins, and provinces of Mongolia as of 2009. These data are now available for download, and may...
Authors
Michael H. Trippi, Harvey E. Belkin
USGS compilation of geographic information system (GIS) data representing coal mines and coal-bearing areas in China USGS compilation of geographic information system (GIS) data representing coal mines and coal-bearing areas in China
Geographic information system (GIS) information may facilitate energy studies, which in turn provide input for energy policy decisions. The U.S. Geological Survey (USGS) has compiled geographic information system (GIS) data representing the known coal mine locations and coal-mining areas of China as of 2001. These data are now available for download, and may be used in a GIS for a...
Authors
Michael H. Trippi, Harvey E. Belkin, Shifeng Dai, Susan J. Tewalt, Chiu-Jung Chou
USGS highly pathogenic avian influenza research strategy USGS highly pathogenic avian influenza research strategy
Avian influenza viruses are naturally occurring in wild birds such as ducks, geese, swans, and gulls. These viruses generally do not cause illness in wild birds, however, when spread to poultry they can be highly pathogenic and cause illness and death in backyard and commercial farms. Outbreaks may cause devastating agricultural economic losses and some viral strains have the potential...
Authors
M. Camille Harris, A. Keith Miles, John M. Pearce, Diann J. Prosser, Jonathan M. Sleeman, Mary E. Whalen
USGS research on Atlantic coral reef ecosystems USGS research on Atlantic coral reef ecosystems
Authors
Ilsa B. Kuffner, Kimberly K. Yates, David G. Zawada, Julie N. Richey, Christina A. Kellogg, Lauren T. Toth
USGS role and response to highly pathogenic avian influenza USGS role and response to highly pathogenic avian influenza
Avian influenza viruses are naturally occurring in wild birds such as ducks, geese, swans, and gulls. These viruses generally do not cause illness in wild birds, however, when spread to poultry they can be highly pathogenic and cause illness and death in backyard and commercial farms. Outbreaks may cause devastating agricultural economic losses and some viral strains have the potential...
Authors
M. Camille Harris, A. Keith Miles, John M. Pearce, Diann J. Prosser, Jonathan M. Sleeman, Mary E. Whalen
Validation of eDNA markers for New Zealand mudsnail surveillance and initial eDNA monitoring at Mississippi River Basin sites Validation of eDNA markers for New Zealand mudsnail surveillance and initial eDNA monitoring at Mississippi River Basin sites
The performance of newly developed New Zealand mudsnail (Potamopyrgus antipodarum; NZMS) genetic markers for environmental (eDNA) analysis of water were compared across two laboratories. The genetic markers were tested in four quantitative polymerase chain reaction assays targeting two regions of the NZMS mitochondrial genome, specifically the cytochrome c oxidase subunit 1 (coi) and...
Authors
Christopher M. Merkes, Keith N. Turnquist, Christopher B. Rees, Jon J. Amberg
Variability within nearshore ecosystems of the Gulf of Alaska Variability within nearshore ecosystems of the Gulf of Alaska
Nearshore marine habitats, which represent the interface among air, land and sea, form a critical component of the Gulf of Alaska (GOA) ecosystem. As an interface, the nearshore facilitates transfer of water, nutrients and biota between terrestrial and oceanic systems, creating zones of high productivity. The nearshore provides a variety of ecosystem services, including (1) nursery...
Authors
Brenda E. Ballachey, James L. Bodkin, Heather A. Coletti, Thomas A Dean, Daniel Esler, George G. Esslinger, Katrin Iken, Kimberly A. Kloecker, Brenda Konar, Mandy Lindeberg, Daniel Monson, Marnie Shepherd, Ben P. Weitzman
Vegetation and non-native ungulate monitoring at the Big Island National Wildlife Refuge Complex 2010–2014. Vegetation and non-native ungulate monitoring at the Big Island National Wildlife Refuge Complex 2010–2014.
The Hakalau Forest Unit (HFU) of Big Island National Wildlife Refuge Complex (BINWRC) has intensively managed feral cattle (Bos taurus) and pigs (Sus scrofa) and monitored non-native ungulate presence and distribution during surveys of all managed areas since 1988. We: 1) provide results from recent ungulate surveys at HFU to determine current feral pig abundance and distribution; 2)...
Authors
Steven C. Hess, Christina R. Leopold, Steven J. Kendall
Vulnerability of larval lamprey to Columbia River hydropower system operations—effects of dewatering on larval lamprey movements and survival Vulnerability of larval lamprey to Columbia River hydropower system operations—effects of dewatering on larval lamprey movements and survival
Numbers of adult and juvenile Pacific lamprey ( Entosphenus tridentatus ) in the upper Columbia River Basin of the interior Pacific Northwest have decreased from historical levels (Close and others, 2002), raising concerns f rom State and Federal agencies and Tribal entities. In 1994, the U.S. Fish and Wildlife Service designated Pacific lamprey as a Category 2 candidate species and in...
Authors
Theresa L. Liedtke, Lisa K. Weiland, Matthew G. Mesa