Simulations of hydrology and water quality for irrigated fields near Yakima, Washington
Richard M. Webb
2019, Conference Paper, Working watersheds and coastal systems: Research and management for a changing future — Proceedings of the Sixth Interagency Conference on Research in the Watersheds
Reliable tools are needed by farmers and managers to estimate and mitigate impacts of altered hydrology and degraded water quality downstream of agricultural areas. The Water, Energy, and Biogeochemical Model (WEBMOD) (Webb and Parkhurst 2017) was used to simulate daily variations of hydrology and water quality for 5 square kilometers...
Phylogeny and foraging mode correspond with thiaminase activity in freshwater fishes: Potential links to environmental factors
Daniel E Spooner, Kristin Boggs, Dustin R. Shull, Dale C. Honeyfield, Timothy Wertz, Stephanie Sweet
2019, Freshwater Science (3) 605-615
Knowledge of the dietary components of fish species is important for understanding their growth, survival, and recruitment. Deficiency in thiamine (vitamin B1) leading to reproductive failure and physiological illness among freshwater fishes has been attributed to thiaminase activity in fish in the Great Lakes and the New York Finger Lakes,...
(U-Th)/He zircon dating of Chesapeake Bay distal impact ejecta from ODP site 1073
M.B. Biren, J.-A. Wartho, van Soest, K.V. Hodges, H. Cathey, B.P. Glass, C. Koeberl, J. Wright Horton Jr., W. Hale
2019, Meteoritics and Planetary Science (54) 1840-1852
Single crystal (U‐Th)/He dating has been undertaken on 21 detrital zircon grains extracted from a core sample from Ocean Drilling Project (ODP) site 1073, which is located ~390 km northeast of the center of the Chesapeake Bay impact structure. Optical and electron imaging in combination with energy dispersive X‐ray microanalysis (EDS)...
High-Resolution mapping of biomass and distribution of marsh and forested wetlands in southeastern coastal Louisiana
Nathan Thomas, Marc Simard, Edward Castaneda-Moya, Kristin B. Byrd, Lisamarie Windham-Myers, Azure Bevington, Robert Twilley
2019, International Journal of Applied Earth Observation and Geoinformation (80) 257-267
This study estimates herbaceous and forested wetland coverage and aboveground biomass (AGB) within the Atchafalaya and Terrebonne coastal basins representing sediment rich and sediment poor coastal regions of southern Louisiana. Louisiana coastal wetlands account for approximately one third (37%) of the estuarine wetland area in the conterminous United States, yet...
Cross-scale interactions dictate regional lake carbon flux and productivity response to future climate
Jacob Aaron Zwart, Zachary J Hanson, Jordan Read, Michael N. Fienen, Alan F. Hamlet, Diogo Bolster, Stuart E. Jones
2019, Geophysical Research Letters (46) 8840-8851
Lakes support globally important food webs through algal productivity and contribute significantly to the global carbon cycle. However, predictions of how broad-scale lake carbon flux and productivity may respond to future climate are extremely limited. Here, we used an integrated modeling framework to project changes in lake-specific...
Pacific Northwest Aquatic Monitoring Partnership 2018 Annual Report
Megan M. Dethloff, Amy L. Puls, Rebecca A. Scully, Sheryn J. Olson, Jennifer M. Bayer, Samuel A. Cimino
2019, Report
The Pacific Northwest Aquatic Monitoring Partnership (PNAMP) continued to promote the integration of monitoring resources and development of tools to support monitoring in 2018. Improved coordination and integration of goals, objectives, and activities among Pacific Northwest monitoring programs is essential to improving the quality and consistency of monitoring in the...
Quarterly wildlife mortality report July 2019
Bryan J. Richards, Robert J. Dusek
2019, Wildlife Disease Association Newsletter 22-24
No abstract available....
Timescales of water-quality change in a karst aquifer, south-central Texas
MaryLynn Musgrove, John E. Solder, Stephen P. Opsahl, Jennifer T. Wilson
2019, Journal of Hydrology X (4)
Understanding the drivers and timescales over which groundwater quality changes informs groundwater management, use, and protection. To better understand timescales of water-quality change over short (daily to monthly) and long (seasonal to decadal) timescales, the U.S. Geological Survey’s National Water-Quality Assessment (NAWQA) Enhanced Trends Network (ETN) program instrumented and sampled...
Semantically supported linked data mapping
Dalia E. Varanka
2019, Report, 2019 US national report (US National Committee for the International Cartographic Association)
Semantic technology based on the Resource Description Framework (RDF) modeling environment has introduced new data management capabilities that can lead to innovative cartographic techniques. This report describes research toward more semantically expressive linked geospatial data mapping, topics of research, and an avenue for further international collaboration....
Lithostratigraphic, geophysical, and hydrogeologic observations from a boring drilled to bedrock in glacial sediments near Nantucket Sound in East Falmouth, Massachusetts
Robert B. Hull, Carole D. Johnson, Byron D. Stone, Denis R. LeBlanc, Timothy D. McCobb, Stephanie N. Phillips, Katherine L. Pappas, John W. Lane Jr.
2019, Scientific Investigations Report 2019-5042
In spring 2016, a 310-foot-deep boring (named MA–FSW 750) was drilled by the U.S. Geological Survey near Nantucket Sound in East Falmouth, Massachusetts, to investigate the hydrogeology of the southern coast of western Cape Cod. Few borings that are drilled to bedrock exist in the area, and the study area...
Drought in the U.S. Caribbean:Impacts to Coastal Estuary Ecosystems
Brent Murry, Miguel Garcia-Bermudez, Shelley Crausbay, Kate Malpeli
2019, Conference Paper, U.S. Caribbean drought workshop
The topography of Puerto Rico and the U.S. Virgin Islands (USVI) is characterized by steep terrain and short distances to the sea. This means that freshwater runs off the islands quickly, coming into contact with seawater in coastal estuaries. The physical characteristics of estuaries change as the tides rise and...
Occurrence, Abundance, and Associations of Topeka Shiners (Notropis topeka) in Restored and Unrestored Oxbows in Iowa and Minnesota, USA
Nicholas T. Simpson, Alexander P. Bybel, Michael J. Weber, Clay Pierce, Kevin J. Roe
2019, Aquatic Conservation: Marine and Freshwater Ecosystems (29) 1735-1748
In the USA, the Topeka shiner (Notropis topeka) is a federally listed endangered species that has been in decline for decades. A key reason for the decline is the alteration of naturally flowing streams and associated oxbow habitats resulting from land-use changes. The focus of recent conservation efforts for...
Evidence of limited recruitment of Pallid Sturgeon in the Lower Missouri River
Kirk D. Steffensen, Kimberly Chojnacki, Jeffery A. Kalie, Meredith L. Bartron, Edward J. Heist, Kyle R. Winders, Nathan C. Loecker, Wyatt J. Doyle, Timothy L. Welker
2019, Journal of Fish and Wildlife Management (10) 336-34
Pallid Sturgeon Scaphirhynchus albus are endemic to the Missouri and Mississippi river basins and are rare throughout their range. The species was listed as federally endangered with little to no evidence of natural recruitment. Since population augmentation was initiated as a recovery objective in the early 1990s, thousands of hatchery-origin...
Hydrogeologic framework and delineation of transient areas contributing recharge and zones of contribution to selected wells in the upper Santa Fe Group aquifer, southeastern Albuquerque, New Mexico, 1900–2050
Nathan C. Myers, Paul J. Friesz
2019, Scientific Investigations Report 2019-5052
The Santa Fe Group aquifer is an important source of water to communities within the Middle Rio Grande Basin, including the Albuquerque-Rio Rancho metropolitan area and Kirtland Air Force Base, New Mexico. In November 1999, Kirtland Air Force Base personnel observed fuel-stained soils at the Bulk Fuels Facility on the...
Hydrous heating experiments at 130°C yield insights into the occurrence of hydrogen sulfide and light alkanes in natural gas reservoirs
M.A. Alrowaie, Aaron M. Jubb, A. Schimmelmann, M. Mastalerz, L.M. Pratt
2019, Organic Geochemistry (137)
Improved understanding of the origin of produced volatiles from conventional reservoirs and unconventional source rocks is critical for petroleum exploration and production. A series of hydrous heating experiments using two immature Type II siliciclastic source rocks, Pennsylvanian Turner Mine shale (TMS) and Devonian New Albany Shale (NAS), at 130 °C...
Preface—Evaluating the response of critical zone processes to human impacts with sediment source fingerprinting
J. Patrick Laceby, Allen C. Gellis, Alexander J. Koiter, Will H. Blake, Olivier Evrard
2019, Journal of Soils and Sediments (19) 3245-3254
1) Background: Critical Zone Processes in the Anthropocene The Earth’s Critical Zone encompasses a suite of interconnected processes in the near-surface lithosphere, pedosphere, biosphere, atmosphere, and hydrosphere (Brantley et al., 2007; Lin, 2010) (Fig. 1). Processes and interactions both within and between these various Critical Zone components supports life-sustaining ecosystem services...
Right-lateral fault motion along the slope-basin transition, Gulf of Santa Catalina, southern California
James Conrad, Daniel Brothers, Katherine Coble, Holly F. Ryan, Peter Dartnell, Ray Sliter
Susan Cochran, editor(s)
2019, Book chapter, From the Mountains to the Abyss: The California Borderland as an Archive of Southern California Geologic Evolution
An active fault system carrying a significant component of right-lateral strike-slip motion extends for ~60 km along the slope–basin transition, ~10 to 20 km offshore of the southern California coast from La Jolla to Dana Point. From south to north, this fault system includes the Carlsbad, San Onofre, and San...
Remote sensing as the foundation for high-resolution United States landscape projections – The Land Change Monitoring, assessment, and projection (LCMAP) initiative
Terry L. Sohl, Jordan Dornbierer, Steve Wika, Charles Robison
2019, Environmental Modelling and Software (120)
The Land Change Monitoring, Assessment, and Projection (LCMAP) initiative uses temporally dense Landsat data and time series analyses to characterize landscape change in the United States from 1985 to present. LCMAP will be used to explain how past, present, and future landscape change affects society and natural systems. Here, we...
Species profile: Quercus parvula
Emily Beckman, Ian Pearse, Abby Meyer, Murphy Westwood
2019, Book chapter, Conservation Gap Analysis of native U.S. Oaks
No abstract available....
Agri-tourism and rural outdoor recreation in the US: A framework for understanding economic and employment dynamics
Dawn Thilmany, Rebecca Hill, Michelle Haefele, Anders van Sandt, Catherine Cullinane Thomas, Martha Sullins, Sarah Low
2019, Book chapter, Rural policies and employment: TransAtlantic experiences
Agri-tourism and rural outdoor recreation are positioned at an important intersection between agricultural, natural resource, economic development and rural issues. This chapter summarizes some of the important dynamics of these sectors, including the role of land use, regional drivers, motivations for farmers and travelers, and economic impacts. As a means...
Geochemical characterization of iron and steel slag and its potential to remove phosphate and neutralize acid
Nadine M. Piatak, Robert R. Seal, II, Darryl Andre Hoppe, Carlin J. Green, Paul M. Buszka
2019, Minerals (9)
Iron and steel slags from legacy and modern operations in the Chicago-Gary area of Illinois and Indiana, USA, are predominantly composed of Ca (10 - 44 wt. % CaO), Fe, (0.3 - 28 wt. % FeO), and Si (10 - 44 wt. % SiO2), with generally lesser amounts of Al...
U.S. Geological Survey response to chronic wasting disease
M. Camille Hopkins, Suzanna C. Soileau
2019, Fact Sheet 2019-3034
The U.S. Geological Survey (USGS) is focused on the development of early detection and effective response tools that promote an adaptive management approach to chronic wasting disease (CWD). USGS scientists across the United States are working to understand the biology of CWD, assess and predict the spread and persistence in...
Nutrients in northern Missouri streams
Heather Krempa
2019, Fact Sheet 2019-3038
Nutrients, specifically nitrogen and phosphorus, are necessary for healthy aquatic communities to thrive, but if nutrient concentrations are too high, water quality can be degraded and natural aquatic communities may be destroyed. Nutrients consistently have been listed nationally as one of the top five causes of stream and river impairments,...
Fire severity and changing composition of forest understory plant communities
Jens Stevens, Jesse Miller, Paula J. Fornwalt
2019, Journal of Vegetation Science (30) 1099-1109
QuestionsGradients of fire severity in dry conifer forests can be associated with variation in understory floristic composition. Recent work in dry conifer forests in California, USA, has suggested that more severely burned stands contain more thermophilic taxa (those associated with warmer and drier conditions), and that forest...
Reduced soil macropores and forest cover reduce warm-season baseflow below ecological thresholds in the upper Delaware River Basin
Theodore A. Endreny, Peter Yong Seuk Kwon, Tanja N. Williamson, Richard Evans
2019, Journal of the American Water Resources Association (55) 1268-1287
We examined the impacts of changes in land cover and soil conditions on the flow regime of the upper Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER). We simulated flows for two periods, circa 1600 and 1940, at three sites using the same temperature and precipitation...
