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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Groundwater flow model investigation of the vulnerability of water resources at Chaco Culture National Historical Park related to unconventional oil and gas development Groundwater flow model investigation of the vulnerability of water resources at Chaco Culture National Historical Park related to unconventional oil and gas development
Chaco Culture National Historical Park (CCNHP), located in northwestern New Mexico, protects the greatest concentration of Chacoan historical sites in the American Southwest. Geologically, CCNHP is located within the San Juan structural basin, which consists in part of complex Cretaceous stratigraphy and hosts a variety of energy resources. As part of a larger study to investigate the
Authors
Zachary M. Shephard, Andre B. Ritchie, Benjamin S. Linhoff, John Joseph Lunzer
Component 1: Data and monitoring gap analysis Component 1: Data and monitoring gap analysis
The goal of Component 1 is to identify available data and data gaps in the Texas coastal region and to establish a plan for obtaining data critical for successful coastal flood analysis in these regions. This component is supporting the expansion and improvement of data observations for inland, coastal, and ocean systems.
Authors
David Wallace, Glenn R. Harwell, Namjeong Choi
USGS invasive carp database management and integration support USGS invasive carp database management and integration support
Invasive carp tracking, monitoring, and contracted removal will continue throughout the Illinois River and upper Mississippi River as part of an adaptive management effort to mitigate, control, and contain invasive carp. Other fish will also be tracked to maintain a holistic view of the transmitter distribution in the Upper IWW. To facilitate these actions, a need to compile and analyze...
Authors
Aaron Charles Murphy, Marybeth K. Brey, Matthew Walker
Wisconsin wildlife: Climate change impacts and adaptation Wisconsin wildlife: Climate change impacts and adaptation
No abstract available.
Authors
Marta P. Lyons, Olivia E. LeDee, Benjamin Zuckerberg
Hydroacoustic mapping for native freshwater mussel and host fish habitats using Quadrula fragosa and Ictalurus punctatus as a case study Hydroacoustic mapping for native freshwater mussel and host fish habitats using Quadrula fragosa and Ictalurus punctatus as a case study
No abstract available.
Authors
Jenny L. Hanson, Jayme M. Strange, Diane L. Waller, Michelle Bartsch
A proposed methodology for conducting threats assessments within the Great Lakes Coregonines restoration framework A proposed methodology for conducting threats assessments within the Great Lakes Coregonines restoration framework
This document serves to fulfill the Coregonine Threats Assessment Science Team’s charge of providing a written recommendation for a methodology to conduct threats assessments for Great Lakes coregonines within the Coregonine Restoration Framework (CRF). Through a series of team meetings that included presentations by experts on five candidate threats assessment frameworks followed by...
Authors
Andrew Edgar Honsey, David R. Smith, Charles R. Bronte, Andy Cook, D. Andrew R. Drake, Dimitry Gorsky, Timothy B. Johnson, Nicholas E. Mandrak, James J. Roberts, Shawn P. Sitar
An inventory of three-dimensional geologic models—U.S. Geological Survey, 2004–22 An inventory of three-dimensional geologic models—U.S. Geological Survey, 2004–22
A database of spatial footprints and characteristics of three-dimensional geological models that were constructed by the U.S. Geological Survey between 2004 and 2022 was compiled as part of ongoing development of subsurface geologic information by the USGS National Cooperative Geologic Mapping Program. This initial inventory resulted in the compilation of 38 three-dimensional geological...
Authors
Donald S. Sweetkind, Kristine L. Zellman
USGS Telemetry Project: Real-Time Telemetry and Multi-State Modeling USGS Telemetry Project: Real-Time Telemetry and Multi-State Modeling
No abstract available.
Authors
Marybeth K. Brey, P. Ryan Jackson, Jessica C. Stanton, Andrea K. Fritts
Status and trends in the Lake Superior fish community, 2023 Status and trends in the Lake Superior fish community, 2023
The U.S. Geological Survey annually conducts fishery surveys across Lake Superior that describe trends in fish species occurrence and relative abundance to inform fisheries management and large lake ecology. In 2023, the Lake Superior fish community was sampled with daytime bottom and surface trawls at 51 nearshore locations in June and 31 offshore locations in July. Nearshore bottom...
Authors
Mark R. Vinson, Lori M. Evrard, Owen T. Gorman, Sydney B Phillips, Daniel L. Yule
Documentation of a pilot workflow for reanalyzing the U.S. Geological Survey principal aquifers datasets and prototype principal aquifer version 2 dataset for three aquifer systems Documentation of a pilot workflow for reanalyzing the U.S. Geological Survey principal aquifers datasets and prototype principal aquifer version 2 dataset for three aquifer systems
A pilot workflow to refine the principal aquifers of the United States as defined in the Ground Water Atlas of the United States and create a new version of the principal aquifers (referred to as “version 2”) is documented in this report. The workflow incorporates decision points for creating finer scale spatial data for the principal aquifers and refining the original principal aquifer
Authors
Martha G. Nielsen
A management-focused population viability analysis for North Atlantic right whales A management-focused population viability analysis for North Atlantic right whales
The North Atlantic right whale (Eubalaena glacialis) is among the most endangered whale species in the world and has been in decline since 2010. Considerable effort is directed toward its recovery by striving to remove threats. In this report, we describe the development of a population viability analysis for right whales that is designed to assess the current status, evaluate the...
Authors
Michael C. Runge, Daniel W. Linden, J. A. Hostetler, Diane L Borggaard, Lance P. Garrison, Amy R. Knowlton, Véronique Lesage, Robert A. Williams, Richard M Pace