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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The 3D Elevation Program—Supporting Montana’s economy The 3D Elevation Program—Supporting Montana’s economy
Introduction Montana, America’s fourth largest State with an area of 147,040 square miles, is defined by its diverse terrain. The western two-fifths of the State falls within the Rocky Mountains and the eastern three-fifths is in the Great Plains. Because of its location along the Continental Divide, the rivers in Montana drain into either the Pacific Ocean or the Gulf of Mexico. Montana...
Authors
Tom Carlson
FishPass baseline assessment of fish community assemblage and migratory patterns in in the Boardman River, Traverse City, Michigan, USA FishPass baseline assessment of fish community assemblage and migratory patterns in in the Boardman River, Traverse City, Michigan, USA
This report on baseline assessment of fish community assemblage and migratory patterns of fishes in the lower Boardman River (LBR; Traverse City, MI (USA)) is one of four assessment projects conceived circa 2017 after the Boardman (Ottaway) River was selected by the Great Lakes Fishery Commission (GLFC) and collaborating agencies as the future site of the Selective Bi-directional Fish...
Authors
Reid G. Swanson, Daniel P. Zielinski, Theodore Castro-Santos, Andrew M. Muir
Use of multiparameter instruments for routine field measurements Use of multiparameter instruments for routine field measurements
The “National Field Manual for the Collection of Water-Quality Data” (NFM) provides guidelines and procedures for U.S. Geological Survey (USGS) personnel who collect data used to assess the quality of the Nation’s surface-water and groundwater resources. This chapter, NFM A6.8, provides guidance and protocols for the use of multiparameter instruments for routine field measurements, which...
New England Water Science Center—Bringing quality and reliable water science to New England New England Water Science Center—Bringing quality and reliable water science to New England
The U.S. Geological Survey (USGS) New England Water Science Center provides timely and reliable information to Federal, State, Tribal, and local stakeholders on the water resources of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. This information product broadly describes the center’s research priorities and monitoring network and how its work benefits the...
Authors
Katrina Rossos
Space-based Earth observation and ecosystem extent: Exploring opportunities Space-based Earth observation and ecosystem extent: Exploring opportunities
The purpose of this white paper is to explore and communicate potential new opportunities for using space-based Earth observation (EO) for monitoring biodiversity with a focus on ecosystem extent (the distribution of ecosystems on the Earth). It is part of a new activity of the Committee on Earth Observation Satellites (CEOS), a collaboration of the world’s space agencies that...
Authors
Gary Geller, Shaun Levick, Sandra Luque, Roger Sayre, Andreas Brink, Nicholas Coops, Sylvie Durrieu, Judith Ewald, Hannes Feilhauer, Jean-Baptiste Feret, Simon Ferrier, Miroslav Honzak, Dino Lenco, Amanda Koltz, Nikhil Lele, Shea Lombardo, Miguel Mahecha, Carsten Meyer, Marc Paganini, Cassidy Rankine, Duccio Rocchini, Amy Rosenthal, Maria J. Santos, Lucie Viciano
Evaluating management alternatives for Wyoming elk feedgrounds in consideration of chronic wasting disease Evaluating management alternatives for Wyoming elk feedgrounds in consideration of chronic wasting disease
Executive Summary The authors used decision and modeling analyses to evaluate management alternatives for a decision on whether to permit Cervus canadensis (elk) feeding on two sites on Bridger-Teton National Forest, Dell Creek and Forest Park. Supplemental feeding of elk could increase the transmission of chronic wasting disease (CWD) locally and disease spread regionally, potentially...
Authors
Jonathan D. Cook, Paul C. Cross, Emily M. Tomaszewski, Eric K. Cole, Evan H. Campbell Grant, James M. Wilder, Michael C. Runge
Updates to the regional groundwater-flow model of the New Jersey Coastal Plain, 1980–2013 Updates to the regional groundwater-flow model of the New Jersey Coastal Plain, 1980–2013
A 21-layer three-dimensional transient groundwater-flow model of the New Jersey Coastal Plain was developed and calibrated by the U.S. Geological Survey (USGS) in cooperation with the New Jersey Department of Environmental Protection to simulate groundwater-flow conditions during 1980–2013, incorporating average annual groundwater withdrawals and average annual groundwater recharge. This...
Authors
Alison D. Gordon, Glen B. Carleton
The 3D Elevation Program—Supporting Missouri’s economy The 3D Elevation Program—Supporting Missouri’s economy
Introduction Because of its geography, Missouri is frequently subject to natural disasters. Ice storms, severe thunderstorms, tornadoes, and flooding are all common occurrences. Since 1990, Missouri has received 40 Federal major disaster declarations. Floods and droughts severely affect the State’s agriculture, which is a leading industry. Another potential major hazard is the New Madrid...
Authors
David Nail
Machine-learning predictions of groundwater specific conductance in the Mississippi Alluvial Plain, south-central United States, with evaluation of regional geophysical aerial electromagnetic data as explanatory variables Machine-learning predictions of groundwater specific conductance in the Mississippi Alluvial Plain, south-central United States, with evaluation of regional geophysical aerial electromagnetic data as explanatory variables
The Mississippi Alluvial Plain, located in the south-central United States, is undergoing long-term groundwater-level declines within the surficial Mississippi River Valley alluvial aquifer (hereinafter referred to as “alluvial aquifer”), which has raised concerns about future groundwater availability. In some parts of the alluvial aquifer, groundwater availability for common uses such...
Authors
Courtney D. Killian, Katherine J. Knierim
System characterization report on the Pléiades Neo Imager System characterization report on the Pléiades Neo Imager
Executive Summary This report addresses system characterization of the Pléiades Neo satellite and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present and detail the methodology and procedures for characterization; present technical and...
Authors
Simon J. Cantrell, Aparajithan Sampath, James C. Vrabel, Paul Bresnahan, Cody Anderson, Minsu Kim, Seonkyung Park
Assessment of post-wildfire geomorphic change in the North Fork Eagle Creek stream channel, New Mexico, 2017–21 Assessment of post-wildfire geomorphic change in the North Fork Eagle Creek stream channel, New Mexico, 2017–21
The 2012 Little Bear Fire caused substantial vegetation loss in the Eagle Creek Basin of south-central New Mexico. This loss was expected to alter the localized hydrologic response to precipitation by creating conditions that amplify surface runoff, which might alter the geomorphology of North Fork Eagle Creek, a major tributary to Eagle Creek. To monitor short-term geomorphic change...
Authors
Justin R. Nichols, Shaleene B. Chavarria, Alexander P. Graziano
Developing fluvial fish species distribution models across the conterminous United States—A framework for management and conservation Developing fluvial fish species distribution models across the conterminous United States—A framework for management and conservation
This report explains the steps and specific methods used to predict fluvial fish occurrences in their native ranges for the conterminous United States. In this study, boosted regression tree models predict distributions of 271 ecologically important fluvial fish species using relations between fish presence/absence and 22 natural and anthropogenic landscape variables. Models developed...
Authors
Hao Yu, Arthur R. Cooper, Jared Ross, Alexa McKerrow, Daniel J. Wieferich, Dana M. Infante