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Reports

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.

Filter Total Items: 83727

Where is the water? Urban [poster]

DescriptionWater is an integral part of how we interact with the environment and live our everyday lives. This educational poster illustrates where water is in urban environments, how it moves, and different ways water is used both naturally and through human interaction. This poster is intended for eighth-grade audiences and younger.
Authors
Simona Love, Sophie Hill, Bryan Hopkins, Benjamin Abbott, Raymond Lee, Rachel Wood, Elizabeth Bailey, Ryan Nixon, Hayley Corson-Dosch, Cee Nell, Rebecca Hale

Spatial distribution of API gravity and gas/oil ratios for petroleum accumulations in Upper Cretaceous strata of the San Miguel, Olmos, and Escondido Formations of the south Texas Maverick Basin—Implications for petroleum migration and charge history

The Maverick Basin of south Texas is currently undergoing active exploration and production of gas and oil from tight sandstone reservoirs. The most productive tight sandstones in the basin are in the Upper Cretaceous San Miguel, Olmos, and Escondido Formations. These units are second only to the Eagle Ford Shale in terms of cumulative production volumes. The structural history of the Maverick Bas
Authors
Colin A. Doolan, William H. Craddock, Marc L. Buursink, Javin J. Hatcherian, Steven M. Cahan

Evaluation of sensors for continuous monitoring of harmful algal blooms in the Finger Lakes region, New York, 2019 and 2020

In response to the increasing frequency of cyanobacterial harmful algal blooms (CyanoHABs) in the Finger Lakes region of New York State, a pilot study by the U.S. Geological Survey, in collaboration with the New York State Department of Environmental Conservation, was conducted to enhance CyanoHAB monitoring and understanding. High-frequency sensors were deployed on open water monitoring-station p
Authors
Brett D. Johnston, Kaitlyn M. Finkelstein, Sabina R. Gifford, Michael D. Stouder, Elizabeth A. Nystrom, Philip R. Savoy, Joshua J. Rosen, Matthew B. Jennings

A conceptual site model of contaminant transport pathways from the Bremerton Naval Complex to Sinclair Inlet, Washington, 2011–21

Historical activities on the Bremerton Naval Complex (BNC) in Puget Sound, Washington, have resulted in Sinclair Inlet sediments with elevated concentrations of contaminants, including organic contaminants such as polychlorinated biphenyls and trace elements including mercury. Six U.S. Geological Survey–U.S. Navy datasets have been collected since the last major assessment, in 2013, of soil and gr
Authors
Kathleen E. Conn, Sarah E. Janssen, Chad C. Opatz, Valerie A.L. Bright

At-a-Glance—Summary of the 2023 U.S. Geological Survey Cooperative Research Unit Program Year in Review

IntroductionEstablished in 1935, the U.S. Geological Survey (USGS) Cooperative Fish and Wildlife Research Unit (CRU) program is a unique partnership among the USGS, State Fish and Wildlife agencies, host universities, the Wildlife Management Institute (WMI), and the U.S. Fish and Wildlife Service (FWS). As of 2023, there are 43 CRUs in 41 states that fall under three supervisory regions and a Nati
Authors
Caroline E. Murphy, Elise R. Irwin, Dawn E. Childs, Donald E. Dennerline, Jonathan R. Mawdsley

Novel data in recreation monitoring—Summary proceedings from interagency workshops in 2019 and 2023

Two interagency workshops were held in 2019 and 2023 in Fort Collins, Colorado, to discuss the use of novel data in recreation monitoring. During the workshops, the phrase “novel data in recreation monitoring” was primarily used to refer to data from social media, mobile device applications, and other online secondary sources. The goals of these workshops were to share information across agencies
Authors
Emily J. Wilkins, Christian S.L. Crowley, Eric M. White, Spencer A. Wood, Rudy Schuster

Evaluation of groundwater resources in the Upper White River Basin within Mount Rainier National Park, Washington state, 2020

The U.S. Geological Survey (USGS), in cooperation with the National Park Service, investigated groundwater gains and losses on the upper White River within Mount Rainier National Park in Washington. This investigation was conducted using stream discharge measurements at 14 locations within 7 reaches over a 6.5-mile river length from near the White River’s origin at the terminus of the Emmons Glaci
Authors
Leland T. Fuhrig, Andrew J. Long, Alexander O. Headman

Greater sage-grouse habitat of Nevada and northeastern California—Integrating space use, habitat selection, and survival indices to guide areas for habitat management

Executive SummaryGreater sage-grouse populations (Centrocercus urophasianus; hereafter sage-grouse) are threatened by a suite of disturbances and anthropogenic factors that have contributed to a net loss of sagebrush-dominant shrub cover in recent decades. Declines in sage-grouse populations are largely linked to habitat loss across their range. A key component of conservation and land use plannin
Authors
Megan C. Milligan, Peter S. Coates, Shawn T. O'Neil, Brianne E. Brussee, Michael P. Chenaille, Derek Friend, Kathleen Steele, Justin R. Small, Timothy S. Bowden, Arlene D. Kosic, Katherine Miller

Groundwater model of the Harney Basin, southeastern Oregon

Groundwater development, mainly for large-scale irrigation, has increased substantially in the Harney Basin of southeastern Oregon since 2010. Concurrently, some areas of the basin experienced groundwater-level declines of more than 100 feet, and some shallow wells have gone dry. The Oregon Water Resources Department has limited new groundwater development in the basin until an improved understand
Authors
Stephen B. Gingerich, Darrick E. Boschmann, Gerald H. Grondin, Halley J Schibel

Monitoring aquifer-storage change from artificial recharge with repeat microgravity along Santa Cruz River, Tucson, Arizona, 2019–22

The City of Tucson water utility, Tucson Water, began releasing treated effluent into the Santa Cruz River channel near downtown Tucson in 2019. This recharge project—the Heritage Project—is intended to create a reach of consistent flow in the channel and recharge water to the aquifer. Tracking the dispersal of recharged water is important for management decisions because groundwater movement depe
Authors
Libby M. Wildermuth, Jacob L. Conrad

Characterizing future streamflows in Massachusetts using stochastic modeling—A pilot study

Communities throughout Massachusetts face the potential effects of climate change, ranging from more extreme rainfall to more pronounced and frequent droughts. Understanding the effects of climate change on hydrology is important to State and community officials to evaluate the potential effects on infrastructure and water systems. To better understand the effects of climate change on hydrology, t
Authors
Scott A. Olson, Ghazal Shabestanipour, Jonathan Lamontagne, Scott Steinschneider

ECCOE Landsat quarterly Calibration and Validation report—Quarter 3, 2023

Executive SummaryThe U.S. Geological Survey Earth Resources Observation and Science Calibration and Validation (Cal/Val) Center of Excellence (ECCOE) focuses on improving the accuracy, precision, calibration, and product quality of remote-sensing data, leveraging years of multiscale optical system geometric and radiometric calibration and characterization experience. The ECCOE Landsat Cal/Val Team
Authors
Md Obaidul Haque, Rajagopalan Rengarajan, Mark Lubke, Md Nahid Hasan, Ashish Shrestha, Jerad L. Shaw, Alex Denevan, Kathryn Ruslander, Esad Micijevic, Michael J. Choate, Cody Anderson, Kurt Thome, Ed Kaita, Julia Barsi, Raviv Levy, Jeff Miller, Leibo Ding