Geologic field-trip guide to Mount Shasta Volcano, northern California
Robert L. Christiansen, Andrew T. Calvert, Timothy L. Grove
2017, Scientific Investigations Report 2017-5022-K3
The southern part of the Cascades Arc formed in two distinct, extended periods of activity: “High Cascades” volcanoes erupted during about the past 6 million years and were built on a wider platform of Tertiary volcanoes and shallow plutons as old as about 30 Ma, generally called the “Western Cascades.”...
Assessment of undiscovered continuous gas resources in the Amu Darya Basin Province of Turkmenistan, Uzbekistan, Iran, and Afghanistan, 2017
Christopher J. Schenk, Marilyn E. Tennyson, Tracey J. Mercier, Sarah J. Hawkins, Stephanie B. Gaswirth, Kristen R. Marra, Timothy R. Klett, Phuong A. Le, Michael E. Brownfield, Cheryl A. Woodall
2017, Fact Sheet 2017-3058
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean undiscovered, technically recoverable continuous resources of 35.1 trillion cubic feet of gas in the Amu Darya Basin Province of Turkmenistan, Uzbekistan, Iran, and Afghanistan....
Lionfish (Pterois spp.) invade the upper-bathyal zone in the western Atlantic
Erika Gress, Dominic A Andradi-Brown, Lucy Woodall, Pamela J. Schofield, Karl Stanley, Alex D. Rogers
2017, PeerJ
Non-native lionfish have been recorded throughout the western Atlantic on both shallow and mesophotic reefs, where they have been linked to declines in reef health. In this study we report the first lionfish observations from the deep sea (>200 m) in Bermuda and Roatan, Honduras, with lionfish observed to a...
Geologic field-trip guide to Medicine Lake Volcano, northern California, including Lava Beds National Monument
Julie M. Donnelly-Nolan, Timothy L. Grove
2017, Scientific Investigations Report 2017-5022-K1
Medicine Lake volcano is among the very best places in the United States to see and walk on a variety of well-exposed young lava flows that range in composition from basalt to rhyolite. This field-trip guide to the volcano and to Lava Beds National Monument, which occupies part of the...
The influence of local- and landscape-level factors on wetland breeding birds in the Prairie Pothole Region of North and South Dakota
Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Deborah A. Buhl
2017, Open-File Report 2017-1096
We examined the relationship between local- (wetland) and landscape-level factors and breeding bird abundances on 1,190 depressional wetlands in the Prairie Pothole Region of North and South Dakota during the breeding seasons in 1995–97. The surveyed wetlands were selected from five wetland classes (alkali, permanent, semipermanent, seasonal, or temporary), two...
Geologic field-trip guide to the Lassen segment of the Cascades Arc, northern California
Michael A. Clynne, L.J. Patrick Muffler
2017, Scientific Investigations Report 2017-5022-K2
This field-trip guide provides an overview of Quaternary volcanism in and around Lassen Volcanic National Park, California, emphasizing the stratigraphy of the Lassen Volcanic Center. The guide is designed to be self-guided and to focus on geologic features and stratigraphy that can be seen easily from the road network....
Minor metals and renewable energy—Diversifying America’s energy sources
Sheryl A. Singerling, Nedal T. Nassar
2017, Fact Sheet 2017-3061
Solar photovoltaic (PV) and wind turbine technologies are projected to make up an increasing proportion of electricity generation capacity in the United States in the coming decades. By 2050, they will account for 36 percent (or 566 gigawatts) of capacity compared with about 11 percent (or 118 gigawatts) in 2016...
Agricultural irrigated land-use inventory for Polk County, Florida, 2016
Richard L. Marella, Darbi Berry, Joann F. Dixon
2017, Open-File Report 2017-1082
An accurate inventory of irrigated crop acreage is not available at the level of resolution needed to better estimate agricultural water use or to project future water demands in many Florida counties. A detailed digital map and summary of irrigated acreage was developed for Polk County, Florida, during the 2016...
Integrating spatially explicit representations of landscape perceptions into land change research
Monica Dorning, Derek B. Van Berkel, Darius J. Semmens
2017, Current Landscape Ecology Reports (2) 73-88
Purpose of ReviewHuman perceptions of the landscape can influence land-use and land-management decisions. Recognizing the diversity of landscape perceptions across space and time is essential to understanding land change processes and emergent landscape patterns. We summarize the role of landscape perceptions in the land change...
Overview for geologic field-trip guides to Mount Mazama, Crater Lake Caldera, and Newberry Volcano, Oregon
Charles R. Bacon, Julie M. Donnelly-Nolan, Robert A. Jensen, Heather M. Wright
2017, Scientific Investigations Report 2017-5022-J
These field-trip guides were written for the occasion of the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) quadrennial scientific assembly in Portland, Oregon, in August 2017. The guide to Mount Mazama and Crater Lake caldera is an updated and expanded version of the guide (Bacon, 1989)...
Water-level altitudes 2017 and water-level changes in the Chicot, Evangeline, and Jasper Aquifers and compaction 1973–2016 in the Chicot and Evangeline Aquifers, Houston-Galveston region, Texas
Mark C. Kasmarek, Jason K. Ramage
2017, Scientific Investigations Report 2017-5080
Most of the land-surface subsidence in the Houston-Galveston region, Texas, has occurred as a direct result of groundwater withdrawals for municipal supply, commercial and industrial use, and irrigation that depressured and dewatered the Chicot and Evangeline aquifers, thereby causing compaction of the aquifer sediments, mostly in the fine-grained silt and...
Field-trip guide to mafic volcanism of the Cascade Range in Central Oregon—A volcanic, tectonic, hydrologic, and geomorphic journey
Natalia I. Deligne, Daniele Mckay, Richard M. Conrey, Gordon E. Grant, Emily R. Johnson, Jim O’Connor, Kristin Sweeney
2017, Scientific Investigations Report 2017-5022-H
The Cascade Range in central Oregon has been shaped by tectonics, volcanism, and hydrology, as well as geomorphic forces that include glaciations. As a result of the rich interplay between these forces, mafic volcanism here can have surprising manifestations, which include relatively large tephra footprints and extensive lava flows, as...
Streamflow characteristics and trends along Soldier Creek, Northeast Kansas
Kyle E. Juracek
2017, Scientific Investigations Report 2017-5061
Historical data for six selected U.S. Geological Survey streamgages along Soldier Creek in northeast Kansas were used in an assessment of streamflow characteristics and trends. This information is required by the Prairie Band Potawatomi Nation for the effective management of tribal water resources, including drought contingency planning. Streamflow data for...
Centennial-scale reductions in nitrogen availability in temperate forests of the United States
Kendra K. McLauchlan, Laci M. Gerhart, John J. Battles, Joseph M. Craine, Andrew J. Elmore, Phil E. Higuera, Michelle M Mack, Brendan E. McNeil, David M. Nelson, Neil Pederson, Steven Perakis
2017, Scientific Reports (7)
Forests cover 30% of the terrestrial Earth surface and are a major component of the global carbon (C) cycle. Humans have doubled the amount of global reactive nitrogen (N), increasing deposition of N onto forests worldwide. However, other global changes—especially climate change and elevated atmospheric carbon dioxide concentrations—are increasing demand...
Modified mercalli intensities for nine earthquakes in central and western Washington between 1989 and 1999
Thomas M. Brocher, James W. Dewey, John F. Cassidy
2017, Open-File Report 2017-1104
We determine Modified Mercalli (Seismic) Intensities (MMI) for nine onshore earthquakes of magnitude 4.5 and larger that occurred in central and western Washington between 1989 and 1999, on the basis of effects reported in postal questionnaires, the press, and professional collaborators. The earthquakes studied include four earthquakes of M5 and...
Plasticity in skeletal characteristics of nursery-raised staghorn coral, Acropora cervicornis
Ilsa B. Kuffner, Erich Bartels, Anastasios Stathakopoulos, Ian C. Enochs, Graham Kolodziej, Lauren Toth, Derek P. Manzello
2017, Coral Reefs (36) 679-684
Staghorn coral, Acropora cervicornis, is a threatened species and the primary focus of western Atlantic reef restoration efforts to date. We compared linear extension, calcification rate, and skeletal density of nursery-raised A. cervicornis branches reared for 6 months either on blocks attached to substratum or hanging from PVC...
Overview for geologic field-trip guides to volcanoes of the Cascades Arc in northern California
L.J. Patrick Muffler, Julie M. Donnelly-Nolan, Timothy L. Grove, Michael A. Clynne, Robert L. Christiansen, Andrew T. Calvert, Juliet Ryan-Davis
2017, Scientific Investigations Report 2017-5022-K
The California Cascades field trip is a loop beginning and ending in Portland, Oregon. The route of day 1 goes eastward across the Cascades just south of Mount Hood, travels south along the east side of the Cascades for an overview of the central Oregon volcanoes (including Three Sisters and...
Evidence of compounded disturbance effects on vegetation recovery following high-severity wildfire and spruce beetle outbreak
Amanda R. Carlson, Jason S. Sibold, Timothy J. Assal, Jose F. Negron
2017, PLoS ONE (12)
Spruce beetle (Dendroctonus rufipennis) outbreaks are rapidly spreading throughout subalpine forests of the Rocky Mountains, raising concerns that altered fuel structures may increase the ecological severity of wildfires. Although many recent studies have found no conclusive link between beetle outbreaks and increased fire size or canopy mortality, few studies have...
The science and prediction of post-fire debris flows in the western United States
Dennis M. Staley, Jason W. Kean
2017, StreamNotes
No abstract available....
Surface morphology of caldera-forming eruption deposits revealed by lidar mapping of Crater Lake National Park, Oregon- Implications for emplacement and surface modification
Joel E. Robinson, Charles R. Bacon, Jon J. Major, Heather M. Wright, James W. Vallance
2017, Journal of Volcanology and Geothermal Research (342) 61-78
Large explosive eruptions of silicic magma can produce widespread pumice fall, extensive ignimbrite sheets, and collapse calderas. The surfaces of voluminous ignimbrites are rarely preserved or documented because most terrestrial examples are heavily vegetated, or severely modified by post-depositional processes. Much research addresses the internal sedimentary characteristics, flow processes, and...
Detecting temporal change in land-surface altitude using robotic land-surveying techniques and geographic information system applications at an earthen dam site in Southern Westchester County, New York
Michael L. Noll, Anthony Chu
2017, Open-File Report 2017-1028
In 2005, the U.S. Geological Survey began a cooperative study with New York City Department of Environmental Protection to characterize the local groundwater-flow system and identify potential sources of seeps on the southern embankment at the Hillview Reservoir in southern Westchester County, New York. Monthly site inspections at the reservoir...
Nutrient and pesticide contamination bias estimated from field blanks collected at surface-water sites in U.S. Geological Survey Water-Quality Networks, 2002–12
Laura Medalie, Jeffrey D. Martin
2017, Scientific Investigations Report 2016-5129
Potential contamination bias was estimated for 8 nutrient analytes and 40 pesticides in stream water collected by the U.S. Geological Survey at 147 stream sites from across the United States, and representing a variety of hydrologic conditions and site types, for water years 2002–12. This study updates previous U.S. Geological...
Statistical relative gain calculation for Landsat 8
Cody Anderson, Dennis Helder, Drake Jeno
2017, Conference Paper, Proceedings SPIE: Optics and Photonics 2017: Remote Sensing
The Landsat 8 Operational Land Imager (OLI) is an optical multispectral push-broom sensor with a focal plane consisting of over 7000 detectors per spectral band. Each of the individual imaging detectors contributes one column of pixels to an image. Any difference in the response between neighboring detectors may result in...
Seasonal trends in eDNA detection and occupancy of bigheaded carps
Richard A. Erickson, Christopher M. Merkes, Craig Jackson, Reuben Goforth, Jon Amberg
2017, Journal of Great Lakes Research (43) 762-770
Bigheaded carps, which include silver and bighead carp, are threatening to invade the Great Lakes. These species vary seasonally in distribution and abundance due to environmental conditions such as precipitation and temperature. Monitoring this seasonal movement is important for management to control the population size and spread of the species....
Methods for estimating annual exceedance-probability streamflows for streams in Kansas based on data through water year 2015
Colin C. Painter, David C. Heimann, Jennifer L. Lanning-Rush
2017, Scientific Investigations Report 2017-5063
A study was done by the U.S. Geological Survey in cooperation with the Kansas Department of Transportation and the Federal Emergency Management Agency to develop regression models to estimate peak streamflows of annual exceedance probabilities of 50, 20, 10, 4, 2, 1, 0.5, and 0.2 percent at ungaged locations in...
