Drain tiles and groundwater resources: Understanding the relations
Erik A. Smith, Timothy Gillette, Kristen Blann, Mary Coburn, Bryce Hoppie, Suzanne Rhees
2018, Report
Executive SummaryDrainage for agricultural production over the past 150 years has been an integral component of human-driven change to Minnesota’s rural landscapes.Benefits of drainageHistorically, poorly drained soils across much of the State would often remain saturated or flooded after spring snowmelt, preventing timely farm operations such...
Water use in Louisiana, 2015
Angela L. Robinson, B. Pierre Sargent
2018, Water Resources Special Report 18
In 2015, approximately 8,720 million gallons per day (Mgal/d) of water was withdrawn from groundwater and surface-water sources in Louisiana, a 2.6 percent increase from 2010. Total groundwater withdrawals were about 1,750 Mgal/d, an increase of 12 percent from 2010, and total surface-water withdrawals were about 6,970 Mgal/d, an increase...
Surficial materials of Massachusetts—A 1:24,000-scale geologic map database
2018, Scientific Investigations Map 3402
The surficial materials geologic map database defines the distribution of nonlithified earth materials at the land surface in the 189 7.5-minute, 1:24,000-scale quadrangles that cover the Commonwealth of Massachusetts (index map). Across the State, these materials range in thickness from a few feet to more than 500 feet (ft). In...
Correlation of the Tuscaloosa marine shale in Mississippi, Louisiana, and east Texas, U.S.A.
William A. Rouse, Catherine B. Enomoto, Nicholas J. Gianoutsos
2018, GCAGS Transactions (68) 461-476
The U.S. Geological Survey (USGS) completed an assessment of undiscovered, technically recoverable unconventional petroleum resources in the Upper Cretaceous marine shale of the Tuscaloosa Group (Tuscaloosa marine shale; TMS) in 2018. As part of the geologic characterization in preparation for the assessment, a series of wireline log cross sections...
Explosive eruptions at the summit of Mauna Loa: Lithology, modeling, and dating
Frank A. Trusdell, Jefferson Hungerford, John Stone, Keith Fifield, Kaitlin McCann, Harold Wershow, Shikma Zaarur, Melissa Dimeo Boyd
2018, Book chapter, Field volcanology: A tribute to the distinguished career of Don Swanson
Near Moku‘āweoweo, Mauna Loa’s summit caldera, there are three fans of explosive deposits. The fans, located to the west, northwest, and east, are strongly arcuate in map view. Along ‘Āinapō Trail, 2.8–3.5 km southeast of the caldera, there are several small kīpuka that expose a fourth explosive deposit. Although these...
Potential for negative emissions of greenhouse gases (CO2, CH4 and N2O) through coastal peatland re-establishment: Novel insights from high frequency flux data at meter and kilometer scales
Lisamarie Windham-Myers, Brian A. Bergamaschi, Frank A. Anderson, Sarah Knox, Robin Miller, Roger Fujii
2018, Environmental Research Letters (13) 1-14
High productivity temperate wetlands that accrete peat via belowground biomass (peatlands) may be managed for climate mitigation benefits due to their global distribution and notably negative emissions of atmospheric carbon dioxide (CO2) through rapid storage of carbon (C) in anoxic soils. Net emissions of additional greenhouse gases (GHG)—methane (CH4) and...
Landsat benefiting society for fifty years
Laura E. P. Rocchio, Peggy Connot, Steve Young, Kate Ramsayer, Linda Owen, Michelle Bouchard, Christopher Barnes
2018, Report
Since 1972, data acquired by the Landsat series of satellites have become integral to land management for both government and the private sector, providing scientists and decision makers with key information about agricultural productivity, ice sheet dynamics, urban growth, forest monitoring, natural resource management, water quality, and supporting disaster response....
Secular changes in Cenozoic arc magmatism recorded by trends in forearc-basin sandstone composition, Cook Inlet, southern Alaska
Kenneth P. Helmold, Marwan A. Wartes, Robert J. Gillis, David L. LePain, Trystan M. Herriott, Richard G. Stanley, Michael D. Wilson
Raymond V. Ingersoll, Timothy F. Lawton, Stephan A. Graham, editor(s)
2018, Book chapter, Tectonics, sedimentary basins, and provenance: A celebration of the career of William R. Dickinson
A robust set of modal composition data (238 samples) for Eocene to Pliocene sandstone from the Cook Inlet forearc basin of southern Alaska reveals strong temporal trends in composition, particularly in the abundance of volcanic lithic grains. Field and petrographic point-count data from the northwestern side of the basin indicate...
Controls on deep direct-use thermal energy storage (DDU-TES) in the Portland Basin, Oregon, USA
Erick R. Burns, Trenton T. Cladouhos, C.F. Williams, Bershaw
2018, Conference Paper, Geothermal's role in today's energy: Geothermal Resources Council Annual Meeting (GRC 2018)
Aquifer Thermal Energy Storage is being evaluated as a complementary technology to Deep Direct-Use for the Portland Basin, Oregon, USA. Aquifers can be used to efficiently distribute and store heat for seasonal use. The use of injection-extraction well pairs precludes the need to store or dispose of large volumes of...
Time-dependent pore filling
Zhonghao Sun, Junbong Jang, J. Carlos Santamarina
2018, Water Resources Research (54) 10242-10253
Capillarity traps fluids in porous media during immiscible fluid displacement. Most field situations involve relatively long time scales, such as hydrocarbon migration into reservoirs, resource recovery, nonaqueous phase liquid remediation, geological CO2 storage, and sediment‐atmosphere interactions. Yet laboratory studies and numerical simulations of capillary phenomena rarely consider the impact of time...
Ecological changes in the nannoplankton community across a shelf transect during the onset of the Paleocene-Eocene Thermal Maximum
Isabel A. Leon y Leon, Timothy J. Bralower, Jean Self-Trail
2018, Paleoceanography and Paleoclimatology (33) 1396-1407
Warming and other environmental changes during the Paleocene‐Eocene thermal maximum (PETM) led to profound shifts in the composition and structure of nannoplankton assemblages. Here we analyze the nature of these changes in expanded records from the Cambridge‐Dorchester and Mattawoman Creek‐Billingsley Road cores in Maryland. These cores comprise part of a...
Improving ecological restoration to curb biotic invasion - A practical guide
Qinfeng Guo, Dale G. Brockway, Diane L. Larson, Deli Wang, Hai Ren
2018, Invasive Plant Science and Management (11) 163-174
Common practices for invasive species control and management include physical, chemical, and biological approaches. The first two approaches have clear limitations and may lead to unintended (negative) consequences, unless carefully planned and implemented. For example, physical removal rarely completely eradicates the targeted invasive species and can cause disturbances that facilitate...
Clarification of the term “normal material” used for standard atomic weights (IUPAC Technical Report)
Tyler B. Coplen, Norman E. Holden, Michael E. Wieser, J.K. Bohlke
2018, Pure and Applied Chemistry (90) 1221-1224
The standard atomic weights of the elements apply to normal materials. Since 1984, the Commission on Isotopic Abundances and Atomic Weights (Commission) has defined a normal material as:“The material is a reasonably possible source for this element or its compounds in commerce, for industry or science; the material is...
Preliminary assessment of stable nitrogen and oxygen isotopic composition of USGS51 and USGS52 nitrous oxide reference gases and perspectives on calibration needs
Nathaniel E. Ostrom, Hasand Gandhi, Tyler B. Coplen, Sakae Toyoda, J.K. Bohlke, Willi A. Brand, Karen L. Casciotti, Jens Dyckmans, Anette Giesemann, Joachim Mohn, Reinhard Well, Longfei Yu, Naohiro Yoshida
2018, Rapid Communications in Mass Spectrometry (32) 1207-1214
RationaleDespite a long history and growing interest in isotopic analyses of N2O, there is a lack of isotopically characterized N2O isotopic reference materials (standards) to enable normalization and reporting of isotope‐delta values. Here we report the isotopic characterization of two pure N2O gas reference materials, USGS51...
Life history with emphasis on geographic variation
Jeffrey E. Lovich, J. Whitfield Gibbons, Kathryn Greene
Willem M. Roosenburg, Victor S. Kennedy, editor(s)
2018, Book chapter, Ecology and conservation of the diamond-backed terrapin
Every organism is defined by a set of vital rates that evolve to enhance lifetime reproductive fitness and survival of individuals and their progeny. These traits vary due to the complex but sometimes predictable interactions between individuals, populations and their environments. Collectively, these attributes are referred to as life history...
Predicting geogenic arsenic in drinking water wells in glacial aquifers, north-central USA: Accounting for depth-dependent features
Melinda L. Erickson, Sarah M. Elliott, Catherine Christenson, Aliesha L. Krall
2018, Water Resources Research (54) 10172-10187
Chronic exposure to arsenic (As) via drinking groundwater is a human health concern worldwide. Probabilities of elevated geogenic As concentrations in groundwater were predicted in complex, glacial aquifers in Minnesota, north‐central USA, a region that commonly has elevated As concentrations in well water. Maps of elevated As hazard were created...
Effects of ocean acidification on salinity tolerance and seawater growth of Atlantic salmon Salmo salar smolts
Stephen D. McCormick, Amy M. Regish
2018, Journal of Fish Biology (93) 560-566
Human activity has resulted in increasing atmospheric carbon dioxide (CO2), which will result in reduced pH and higher levels of CO2 in the ocean, a process known as ocean acidification. Understanding the effects of ocean acidification (OA) on fishes will be important to predicting and mitigating its consequences. Anadromous species such...
Taxonomy: A history of controversy and uncertainty
Jeffrey E. Lovich, Kristen Hart
Willem M. Roosenburg, Victor S. Kennedy, editor(s)
2018, Book chapter, Ecology and conservation of the diamond-backed terrapin
No abstract available. ...
How do upwelling and El Niño impact coral reef growth? A guided, inquiry-based lesson
Philip M. Gravinese, Lauren Toth, Carly J. Randall, Richard B. Aronson
2018, Oceanography (31) 184-188
This lesson uses real-world data to guide students toward understanding how climate and ocean variables impact coral reef growth. To begin this activity, students hypothesize how changes in environmental conditions could affect coral reef growth. They then compare metrics for reef growth (linear growth and percent coral cover) between two...
Global conservation status of turtles and tortoises (order Testudines)
Anders G.J. Rhodin, Craig B. Stanford, Peter Paul van Dijk, Carla Eisemberg, Luca Luiselli, Russell A. Mittermeier, Rick Hudson, Brian D. Horne, Eric Goode, Gerald Kuchling, Andrew Walde, Ernst H. W. Baard, Kristin H. Berry, Albert Bertolero, Torsten E. G. Blanck, Roger Bour, Kurt A. Buhlmann, Linda J. Cayot, Sydney Collett, Andrea Currylow, Indraneil Das, Tomas Diagne, Joshua R. Ennen, German Forero-Medina, Matthew G. Frankel, Uwe Fritz, Gerardo Garcia, J. Whitfield Gibbons, Paul M. Gibbons, Gong Shiping, Joko Guntoro, Margaretha D. Hofmeyr, John B. Iverson, A. Ross Kiester, Michael Lau, Dwight P. Lawson, Jeffrey E. Lovich, Edward O. Moll, Vivian P. Paez, Rosalinda Palomo-Ramos, Kalyar Platt, Steven G. Platt, Peter C. H. Pritchard, Hugh R. Quinn, Shahriar Caesar Rahman, Soary Tahafe Randrianjafizanaka, Jason Schaffer, Will Selman, H. Bradley Shaffer, Dionysius S. K. Sharma, Shi Haitao, Shailendra Singh, Ricky Spencer, Kahleana Stannard, Sarah Sutcliffe, Scott Thomson, Richard C. Vogt
2018, Chelonian Conservation and Biology (17) 135-161
We present a review and analysis of the conservation status and International Union for Conservation of Nature (IUCN) threat categories of all 360 currently recognized species of extant and recently extinct turtles and tortoises (Order Testudines). Our analysis is based on the 2018 IUCN Red List status of 251 listed...
Geospatial data for developing nutrient SPARROW models for the Midcontinental region of Canada and the United States
Ivana Vouk, Richard S. Burcher, Craig M. Johnston, R. Wayne Jenkinson, David A. Saad, John S. Gaiot, Glenn A. Benoy, Dale M. Robertson, Michael Laitta
2018, Technical Report OCRE-TR-2018-014
Through the International Watersheds Initiative of the International Joint Commission (IJC), the SpatiallyReferenced Regressions on Watershed attributes (SPARROW) model developed by the U.S. Geological Survey (USGS) is being applied to the Great Lakes, Rainy River – Lake of the Woods and Red-Assiniboine basins. The objective of this binational application of...
Elk research efforts
Joseph D. Clark
2018, Report, FHWA Eco-Logical Wildlife Crossing Workshop and Peer Exchange
Presented the history of the NC elk herd and summarized early research to determine the population dispersal and mortality rates, assess habitat use, and evaluate elk’s impact on the national park to estimate the probability of success in establishing a permanent elk population in the Great Smoky Mountains National Park...
Water
Upmanu Lall, Thomas M. Johnson, Peter Colohan, Amir AghaKouchak, Casey L. Brown, Gregory J. McCabe, Roger Pulwarty, Sankar Arumugam
David Reidmiller, C. W. Avery, D. R. Easterling, K. E. Kunkel, K. L. M. Lewis, T. K. Maycock, B. C. Stewart, editor(s)
2018, Report, Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, Volume II
Ensuring a reliable supply of clean freshwater to individuals, communities, and ecosystems, together with effective management of floods and droughts, is the foundation of human and ecological health. The water sector is also central to the economy and contributes significantly to the resilience of many other...
Informing our successors: What botanical information for Santa Cruz Island will researchers and conservation managers in the century ahead need the most?
John M. Randall, Kathryn McEachern, John Knapp, Paula Power, Steve Junak, Kristina Gill, Denise Knapp, Matt Guilliams
2018, Western North American Naturalist (78) 888-901
Climate changes are predicted to drive changes in plant species composition and vegetation cover around the world. Preserved specimens and other botanical information that we gather today—a period future practitioners may look back on as an early stage of modern anthropogenic climate change—will be of value to conservation managers and...
Coastal effects
Elizabeth Fleming, Jeffrey Payne, William V. Sweet, Michael Craghan, John W. Haines, Juliette Finzi Hart, Heidi Stiller, Ariana Sutton-Grier
David Reidmiller, C. W. Avery, D. R. Easterling, K. E. Kunkel, K. L. M. Lewis, T. K. Maycock, B. C. Stewart, editor(s)
2018, Report, Impacts, Risks, and Adaptation in the United States: Fourth National Climate Assessment, Volume II
The Coasts chapter of the Third National Climate Assessment, published in 2014, focused on coastal lifelines at risk, economic disruption, uneven social vulnerability, and vulnerable ecosystems. This Coastal Effects chapter of the Fourth National Climate Assessment updates those themes, with a focus on integrating the socioeconomic and...
