Numerical models of pore pressure and stress changes along basement faults due to wastewater injection: Applications to the 2014 Milan, Kansas Earthquake
Elizabeth H. Hearn, Christine Koltermann, Justin R. Rubinstein
2018, Geochemistry, Geophysics, Geosystems (19) 1178-1198
We have developed groundwater flow models to explore the possible relationship between wastewater injection and the 12 November 2014 Mw 4.8 Milan, Kansas earthquake. We calculate pore pressure increases in the uppermost crust using a suite of models in which hydraulic properties of the Arbuckle Formation and the Milan earthquake fault...
California State Waters Map Series — Offshore of Point Conception, California
Samuel Y. Johnson, Peter Dartnell, Guy R. Cochrane, Stephen R. Hartwell, Nadine E. Golden, Rikk Kvitek, Clifton W. Davenport
Samuel Y. Johnson, Susan A. Cochran, editor(s)
2018, Open-File Report 2018-1024
IntroductionIn 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration,...
California State Waters Map Series — Offshore of Gaviota, California
Samuel Y. Johnson, Peter Dartnell, Guy R. Cochrane, Stephen R. Hartwell, Nadine E. Golden, Rikk Kvitek, Clifton W. Davenport
Samuel Y. Johnson, Susan A. Cochran, editor(s)
2018, Open-File Report 2018-1023
IntroductionIn 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration,...
Bedrock geologic map of the Miles Pond and Concord quadrangles, Essex and Caledonia Counties, Vermont, and Grafton County, New Hampshire
Douglas W. Rankin
2018, Open-File Report 2018-1025
The bedrock geologic map of the Miles Pond and Concord quadrangles covers an area of approximately 107 square miles (276 square kilometers) in east-central Vermont and adjacent New Hampshire, north of and along the Connecticut River. This map was created as part of a larger effort to produce a new...
Bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire
Douglas W. Rankin
2018, Open-File Report 2018-1016
The bedrock geologic map of the Lisbon quadrangle, and parts of the Sugar Hill and East Haverhill quadrangles, Grafton County, New Hampshire, covers an area of approximately 73 square miles (189 square kilometers) in west-central New Hampshire. This map was created as part of a larger effort to produce a...
U.S. Geological Survey continuous monitoring workshop—Workshop summary report
Daniel J. Sullivan, John K. Joiner, Kerry A. Caslow, Mark N. Landers, Brian A. Pellerin, Patrick P. Rasmussen, Rodney A. Sheets
2018, Open-File Report 2018-1059
Executive SummaryThe collection of high-frequency (in other words, “continuous”) water data has been made easier over the years because of advances in technologies to measure, transmit, store, and query large, temporally dense datasets. Commercially available, in-situ sensors and data-collection platforms—together with new techniques for data analysis—provide an opportunity to monitor...
Imaging a crustal low-velocity layer using reflected seismic waves from the 2014 earthquake swarm at Long Valley Caldera, California: The magmatic system roof?
Nori Nakata, David R. Shelly
2018, Geophysical Research Letters (45) 3481-3488
The waveforms generated by the 2014 Long Valley Caldera earthquake swarm recorded at station MLH show clear reflected waves that are often stronger than direct P and S waves. With waveform analyses, we discover that these waves are reflected at the top of a low-velocity body, which may be residual magma...
Carbonate system parameters of an algal-dominated reef along west Maui
Nancy G. Prouty, Kimberly K. Yates, Nathan A. Smiley, Christopher Gallagher, Olivia Cheriton, Curt D. Storlazzi
2018, Biogeosciences (15) 2467-2480
Constraining coral reef metabolism and carbon chemistry dynamics are fundamental for understanding and predicting reef vulnerability to rising coastal CO2 concentrations and decreasing seawater pH. However, few studies exist along reefs occupying densely inhabited shorelines with known input from land-based sources of pollution. The shallow coral reefs off Kahekili, West Maui,...
Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego County, southern California—2017 data summary
Lisa D. Allen, Scarlett L. Howell, Barbara E. Kus
2018, Data Series 1082
We surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2017. Surveys were conducted from April 13 to...
Juvenile Lost River and shortnose sucker year class strength, survival, and growth in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2016 Monitoring Report
Summer M. Burdick, Carl O. Ostberg, Marshal S. Hoy
2018, Open-File Report 2018-1066
Executive SummaryThe largest populations of federally endangered Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) exist in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California. Upper Klamath Lake populations are decreasing because adult mortality, which is relatively low, is not being balanced by recruitment of young adult...
Assessment of undiscovered continuous gas resources in Upper Devonian Shales of the Appalachian Basin Province, 2017
Catherine B. Enomoto, Michael H. Trippi, Debra K. Higley, William A. Rouse, Frank T. Dulong, Timothy R. Klett, Tracey J. Mercier, Michael E. Brownfield, Heidi M. Leathers-Miller, Thomas M. Finn, Kristen R. Marra, Phuong A. Le, Cheryl A. Woodall, Christopher J. Schenk
2018, Fact Sheet 2018-3018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable continuous resources of 10.7 trillion cubic feet of natural gas in Upper Devonian shales of the Appalachian Basin Province....
U.S. Department of the Interior Climate Science Centers and U.S. Geological Survey National Climate Change and Wildlife Science Center—Annual report for 2017
Elda Varela Minder
2018, Open-File Report 2018-1049
IntroductionThe year 2017 was a year of review and renewal for the Department of the Interior (DOI) Climate Science Centers (CSCs) and the U.S. Geological Survey (USGS) National Climate Change and Wildlife Science Center (NCCWSC). The Southeast, Northwest, Alaska, Southwest, and North Central CSCs’ 5-year summary review reports were released...
Supporting natural resource management—The role of economics at the Department of the Interior—A workshop report
Emily Pindilli, Christian S.L. Crowley, Sarah A. Cline, Anthony J. Good, Carl D. Shapiro, Benjamin Simon
2018, Open-File Report 2018-1054
The first U.S. Department of the Interior Economics Workshop was held April 5–7, 2017 in Washington, D.C., to identify, highlight, and better understand needs and opportunities for economic analysis to support the Department of the Interior’s mission. The Economics Workshop, jointly convened by the Department of the Interior Office of...
Proactive Rainbow Trout suppression reduces threat of hybridization in the Upper Snake River Basin
Ryan Kovach, Robert Al-Chokhachy, Tracy Stephens
2018, North American Journal of Fisheries Management (38) 811-819
Preserving remaining nonhybridized populations Cutthroat Trout Oncorhynchus clarkii is a conservation priority often requiring management action. Although proactive programs for Rainbow Trout O. mykiss and hybrid suppression offer a flexible tool, particularly in large interconnected river basins, this management approach is used less frequently than alternatives such as barriers and...
A time-lapse gravity survey of the Coso geothermal field, China Lake Naval Air Weapons Station, California
Geoffrey Phelps, Collin Cronkite-Ratcliff, Kelly Blake
2018, Open-File Report 2018-1053
We have conducted a gravity survey of the Coso geothermal field to continue the time-lapse gravity study of the area initiated in 1991. In this report, we outline a method of processing the gravity data that minimizes the random errors and instrument bias introduced into the data by the Scintrex...
Coastal estuaries and lagoons: The delicate balance at the edge of the sea
Paul A. Conrads, Kirk D. Rodgers, Davina Passeri, Scott T. Prinos, Christopher Smith, Christopher M. Swarzenski, Beth A. Middleton
2018, Fact Sheet 2018-3022
Coastal communities are increasingly concerned about the dynamic balance between freshwater and saltwater because of its implications for societal, economic, and ecological resources. While the mixing of freshwater and saltwater sources defines coastal estuaries and lagoons, sudden changes in this balance can have a large effect on critical ecosystems and...
Monitoring stream temperatures—A guide for non-specialists
Michael P. Heck, Luke D. Schultz, David Hockman-Wert, Eric C. Dinger, Jason B. Dunham
2018, Techniques and Methods 3-A25
Executive SummaryWater temperature influences most physical and biological processes in streams, and along with streamflows is a major driver of ecosystem processes. Collecting data to measure water temperature is therefore imperative, and relatively straightforward. Several protocols exist for collecting stream temperature data, but these are frequently directed towards specialists....
Opportunistically collected data reveal habitat selection by migrating Whooping Cranes in the U.S. Northern Plains
Neal D. Niemuth, Adam J. Ryba, Aaron T. Pearse, Susan M. Kvas, David A. Brandt, Brian Wangler, Jane E. Austin, Martha J. Carlisle
2018, The Condor (120) 343-356
The Whooping Crane (Grus americana) is a federally endangered species in the United States and Canada that relies on wetland, grassland, and cropland habitat during its long migration between wintering grounds in coastal Texas, USA, and breeding sites in Alberta and Northwest Territories, Canada. We combined opportunistic Whooping Crane sightings...
Surveys of environmental DNA (eDNA): a new approach to estimate occurrence in Vulnerable manatee populations
Margaret Hunter, Gaia Meigs-Friend, Jason A. Ferrante, Aristide Takoukam Kamla, Robert Dorazio, Lucy Keith Diagne, Fabia Luna, Janet M. Lanyon, James P. Reid
2018, Endangered Species Research (35) 101-111
Environmental DNA (eDNA) detection is a technique used to non-invasively detect cryptic, low density, or logistically difficult-to-study species, such as imperiled manatees. For eDNA measurement, genetic material shed into the environment is concentrated from water samples and analyzed for the presence of target species. Cytochrome bquantitative PCR and droplet digital PCR...
Urban growth and landscape connectivity threats assessment at Saguaro National Park, Arizona, USA
Ryan Perkl, Laura M. Norman, David Mitchell, Mark R. Feller, Garrett Smith, Natalie R. Wilson
2018, Journal of Land Use Science (13) 102-117
Urban and exurban expansion results in habitat and biodiversity loss globally. We hypothesize that a coupled-model approach could connect urban planning for future cities with landscape ecology to consider wildland habitat connectivity. Our work combines urban growth simulations with models of wildlife corridors to examine how species will be impacted...
Uranium concentrations in groundwater, northeastern Washington
Sue C. Kahle, Wendy B. Welch, Alison E. Tecca, Devin M. Eliason
2018, Scientific Investigations Map 3401
A study of uranium in groundwater in northeastern Washington was conducted to make a preliminary assessment of naturally occurring uranium in groundwater relying on existing information and limited reconnaissance sampling. Naturally occurring uranium is associated with granitic and metasedimentary rocks, as well as younger sedimentary deposits, that occur in this...
Proximity of Precambrian basement affects the likelihood of induced seismicity in the Appalachian, Illinois, and Williston Basins, central and eastern United States
Robert J. Skoumal, Michael R. Brudzinski, Brian S. Currie
2018, Geosphere (14) 1365-1379
A dramatic seismicity rate increase in the central and eastern United States (CEUS) over the past decade has been largely associated with the increase in enhanced oil and gas recovery operations and change in industry practices. However, certain areas of the CEUS that have experienced large increases in oil and...
Does what go up also come down? Using a recruitment model to balance alewife nutrient import and export
Betsy L. Barber, A. Jamie Gibson, Andrew O’Malley, Joseph D. Zydlewski
2018, Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science (10) 236-254
Migrating adult Alewives Alosa pseudoharengus are a source of marine-derived nutrients on the East Coast of North America, importing nitrogen and phosphorus into freshwater habitats. Juvenile migrants subsequently transport freshwater-derived nutrients into the ocean. We developed a deterministic model to explore the theoretical nutrient dynamics of Alewife migrations at differing...
Thinning, tree-growth, and resistance to multi-year drought in a mixed-conifer forest of northern California
Michael J. Vernon, Rosemary L. Sherriff, Phillip J. van Mantgem, Jeffrey M. Kane
2018, Forest Ecology and Management (422) 190-198
Drought is an important stressor in forest ecosystems that can influence tree vigor and survival. In the U.S., forest managers use two primary management techniques to promote resistance and resilience to drought: prescribed fire and mechanical thinning. Generally applied to reduce fuels and fire hazard, treatments may also reduce competition...
Evaluating autonomous acoustic surveying techniques for rails in tidal marshes
Lydia L. Stiffler, James T. Anderson, Todd E. Katzner
2018, Wildlife Society Bulletin (42) 78-83
There is a growing interest toward the use of autonomous recording units (ARUs) for acoustic surveying of secretive marsh bird populations. However, there is little information on how ARUs compare to human surveyors or how best to use ARU data that can be collected continuously throughout the day. We used...
