Knowledge, transparency, and refutability in groundwater models, an example from the Death Valley regional groundwater flow system
Mary C. Hill, Claudia C. Faunt, Wayne Belcher, Donald S. Sweetkind, Claire R. Tiedeman, Dmitri Kavetski
2013, Physics and Chemistry of the Earth, Parts A/B/C (64) 105-116
This work demonstrates how available knowledge can be used to build more transparent and refutable computer models of groundwater systems. The Death Valley regional groundwater flow system, which surrounds a proposed site for a high level nuclear waste repository of the United States of America, and the Nevada National Security...
Statewide summary for Mississippi
Lawrence R. Handley, Kathryn A. Spear, Ali Leggett, Cindy A. Thatcher
2013, Report, Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
The Mississippi coastline is 113 linear kilometers (70 miles) long and its estuaries cover approximately 594 km (369 mi; Figure 1) (Handley and others, 2007). It has a man-made sand beach 43.5 km (27 mi) long and 595.5 km (370 mi) of shoreline (Klein and others, b., 1998). The Mississippi...
Freshwater and drought on Pacific Islands
Scot K. Izuka, Victoria Keener
2013, Book chapter, Climate Change and Pacific Islands: Indicators and Impacts: Report for the 2012 Pacific Islands Regional Climate Assessment
Summary, synthesis, and significance
Todd C. Esque, Kenneth E. Nussear, Richard D. Inman, Marjorie D. Matocq, Peter J. Weisberg, Thomas E. Dilts, Phillip Leitner
2013, Book chapter, Habitat modeling, landscape genetics, and habitat connectivity for the Mohave ground squirrel to guide renewable energy development, CEC‐500‐2014‐003
The initial habitat suitability model estimates pre‐European suitable habitat of the Mohave ground squirrel (MGS, Xerospermophilus mohavensis) covering 19,023 km2. Impact scenarios predicted that between 10 percent and 16 percent of suitable habitat has been lost to historical human disturbances, and up to an additional 10 percent may be affected...
Assessing winter cover crop nutrient uptake efficiency using a water quality simulation model
In-Young Yeo, Sangchui Lee, Ali M. Sadeghi, Peter C. Beeson, W. Dean Hively, Greg W. McCarty, Megan W. Lang
2013, Hydrology and Earth System Sciences (10) 14229-14263
Winter cover crops are an effective conservation management practice with potential to improve water quality. Throughout the Chesapeake Bay Watershed (CBW), which is located in the Mid-Atlantic US, winter cover crop use has been emphasized and federal and state cost-share programs are available to farmers to subsidize the cost of...
Establishing an operational waterhole monitoring system using satellite data and hydrologic modelling: Application in the pastoral regions of East Africa
Gabriel B. Senay, Naga Manohar Velpuri, Henok Alemu, Shahriar Md Pervez, Kwabena O Asante, Gatarwa Karuki, Asefa Taa, Jay Angerer
2013, Pastoralism: Research, Policy and Practice (3) 1-16
Timely information on the availability of water and forage is important for the sustainable development of pastoral regions. The lack of such information increases the dependence of pastoral communities on perennial sources, which often leads to competition and conflicts. The provision of timely information is a challenging task, especially due...
Wildfire and aspect effects on hydrologic states after the 2010 Fourmile Canyon Fire
Brian A. Ebel
2013, Vadose Zone Journal (12)
Wildfire can change how soils take in, store, and release water. This study examined differences in how burned and unburned plots on north versus south-facing slope aspects respond to rainfall. The largest wildfire impacts were litter/duff combustion on burned north-facing slopes versus soil-water retention reduction on burned south-facing slopes.Wildfire is...
Valley plugs, land use, and phytogeomorphic response: Chapter 14
Aaron R. Pierce, Sammy L. King
John F. Shroder, editor(s)
2013, Book chapter, Treatise on Geomorphology: Ecogeomorphology
Anthropogenic alteration of fluvial systems can disrupt functional processes that provide valuable ecosystem services. Channelization alters fluvial parameters and the connectivity of river channels to their floodplains which is critical for productivity, nutrient cycling, flood control, and biodiversity. The effects of channelization can be exacerbated by local geology and land-use...
Chesapeake Bay waterbirds, sea-level rise, and island restoration
R. Michael Erwin
2013, Book chapter, Marine Conservation: Science, Policy, and Management
No abstract available....
Lakes without Landsat? Implications of scale and an alternative approach to regional remote lake monitoring using MODIS 250 m imagery
Ian M. McCullough, Cynthia S. Loftin, Steven A. Sader
2013, Lake and Reservoir Management (29) 89-98
We evaluated use of MODIS 250 m imagery for remote lake monitoring in Maine. Despite limited spectral resolution (visible red and near infrared bands), the twice daily image capture has a potential advantage over conventionally used, often cloudy Landsat imagery (16 day interval) when short time windows are of interest. We analyzed...
Appendix D: Use of wave scenarios to assess potential submerged oil mat (SOM) formation along the coast of Florida and Alabama
P. Soupy Dalyander, Joseph W. Long, Nathaniel G. Plant, David M. Thompson
2013, Operational Science Advisory Team Report III
During the Deepwater Horizon oil spill, oil in the surf zone mixed with sediment in the surf zone to form heavier-than-water sediment oil agglomerates of various size, ranging from small (cm-scale) pieces (surface residual balls, SRBs) to large mats (100-m scale, surface residue mats, SR mats). Once SR mats formed...
Galveston Bay: Chapter D in Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
Lawrence R. Handley, Kathryn A. Spear, Eleonor Taylor, Cindy A. Thatcher
2013, Report, Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
The Galveston Bay estuary is located on the upper Texas Gulf coast (Lester and Gonzalez, 2002). It is composed of four major sub-bays - Galveston, Trinity, East, and West Bays. It is Texas’ largest estuary on the Gulf Coast with a total area of 155,399 hectares (384,000 acres) and 1,885...
Global climate change impacts on coastal ecosystems in the Gulf of Mexico: Considerations for integrated coastal management
John W. Day, Alejandro Yanez-Arancibia, James H. Cowan, Richard H. Day, Robert R. Twilley, John R. Rybczyk
2013, Book chapter, Gulf of Mexico origin, waters, and biota
Global climate change is important in considerations of integrated coastal management in the Gulf of Mexico. This is true for a number of reasons. Climate in the Gulf spans the range from tropical to the lower part of the temperate zone. Thus, as climate warms, the tropical temperate interface, which...
Water quality status and trends in the United States
Matthew C. Larsen, Pixie A. Hamilton, William H. Werkheiser
Satinder Ahuja, editor(s)
2013, Book chapter, Monitoring water quality
Information about water quality is vital to ensure long-term availability and sustainability of water that is safe for drinking and recreation and suitable for industry, irrigation, fish, and wildlife. Protecting and enhancing water quality is a national priority, requiring information on water-quality status and trends, progress toward clean water standards,...
Semidiurnal temperature changes caused by tidal front movements in the warm season in seabed habitats on the Georges Bank northern margin and their ecological implications
Vincent G. Guida, Page C. Valentine, Leslie B. Gallea
2013, PLoS ONE (8)
Georges Bank is a large, shallow feature separating the Gulf of Maine from the Atlantic Ocean. Previous studies demonstrated a strong tidal-mixing front during the warm season on the northern bank margin between thermally stratified water in the Gulf of Maine and mixed water on the bank. Tides transport warm...
Trends in landscape and vegetation change and implications for the Santa Cruz Watershed
Miguel L. Villarreal, Laura M. Norman, Robert H. Webb, Raymond M. Turner
2013, Book, Proceedings of the Science on the Sonoita Plain Symposium
Monitoring and characterizing the interactive effects of land use and climate on land surface processes is a primary focus of land change science, and of particular concern in arid Wells Distribution in Shallow Groundwater Areas Pumping Trends Increase Streamflow Extent Declines 27 environments where both landscapes and livelihoods can be...
Statewide summary for Alabama
Lawrence R. Handley, Kathryn A. Spear, Stephen Jones, Cindy A. Thatcher
2013, Report, Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010
Alabama is over 132,000 km2 (51,000 miles2) in area, 483 km (300 miles) long, and 322 km (200 miles) wide (Copeland, 1968). Coastal Alabama comprises Mobile and Baldwin Counties and the surrounding State waters in the Gulf of Mexico (Figure 1; O’Neil and Mettee, 1982). It is part of both...
Observed ices in the Solar System
Roger N. Clark, Will Grundy, Robert R. Carlson, Keith Noll
Murthy Gudipati, Julie C. Castillo-Rogez, editor(s)
2013, Book chapter
Ices have been detected and mapped on the Earth and all planets and/or their satellites further from the sun. Water ice is the most common frozen volatile observed and is also unambiguously detected or inferred in every planet and/or their moon(s) except Venus. Carbon dioxide is also extensively found in...
Transport and fate of microbial pathogens in agricultural settings
Scott A. Bradford, Veronica L. Morales, Wei Zhang, Ronald W. Harvey, Aaron I. Packman, Arvind Mohanram, Claire Welty
2013, Critical Reviews in Environmental Science and Technology (43) 775-893
An understanding of the transport and survival of microbial pathogens (pathogens hereafter) in agricultural settings is needed to assess the risk of pathogen contamination to water and food resources, and to develop control strategies and treatment options. However, many knowledge gaps still remain in predicting the fate and transport of...
Managing the impacts of endocrine disrupting chemicals in wastewater-impacted streams
Celeste A. Journey, Paul M. Bradley, Dana W. Kolpin
Paul M. Bradley, editor(s)
2013, Book chapter, Current perspectives in contaminant hydrology and water resources sustainability
A revolution in analytical instrumentation circa 1920 greatly improved the ability to characterize chemical substances [1]. This analytical foundation resulted in an unprecedented explosion in the design and production of synthetic chemicals during and post-World War II. What is now often referred to as the 2nd Chemical Revolution has provided...
A critique of the use of indicator-species scores for identifying thresholds in species responses
Thomas F. Cuffney, Song S. Qian
2013, Freshwater Science (32) 471-488
Identification of ecological thresholds is important both for theoretical and applied ecology. Recently, Baker and King (2010, King and Baker 2010) proposed a method, threshold indicator analysis (TITAN), to calculate species and community thresholds based on indicator species scores adapted from Dufrêne and Legendre (1997). We tested the ability of...
Characterization and remediation of iron(III) oxide-rich scale in a pipeline carrying acid mine drainage at Iron Mountain Mine, California, USA
Kate M. Campbell, Charles N. Alpers, D. Kirk Nordstrom, Alex E. Blum, Amy Williams
A. Brown, L. Figueroa, C. Wolkersdorfer, editor(s)
2013, Conference Paper, Reliable mine water technology: Proceedings of the International Mine Water Association Annual Conference 2013, August 6-9, 2013, Golden, Colorado, USA
http://imwa.info/docs/imwa_2013/IMWA2013_Campbell_481.pdf...
The effects of pulse pressure from seismic water gun technology on Northern Pike
Jackson A. Gross, Kathryn M. Irvine, Siri K. Wilmoth, Tristany L. Wagner, Patrick A Shields, Jeffrey R. Fox
2013, Transactions of the American Fisheries Society (142) 1335-1346
We examined the efficacy of sound pressure pulses generated from a water gun for controlling invasive Northern Pike Esox lucius. Pulse pressures from two sizes of water guns were evaluated for their effects on individual fish placed at a predetermined random distance. Fish mortality from a 5,620.8-cm3 water gun (peak pressure source...
Effects of acidic deposition and soil acidification on sugar maple trees in the Adirondack Mountains, New York
Timothy J. Sullivan, Gregory B. Lawrence, Scott W. Bailey, Todd C. McDonnell, G.T. McPherson
2013, Report
This study documents the effects of acidic deposition and soil acid-base chemistry on the growth, regeneration, and canopy condition of sugar maple (SM) trees in the Adirondack Mountains of New York. Sugar maple is the dominant canopy species throughout much of the northern hardwood forest in the State. A field...
Riparian restoration in the context of Tamarix control in the western United States: Chapter 23
Patrick B. Shafroth, David M. Merritt, Mark K. Briggs, Vanessa B. Beauchamp, Kenneth D. Lair, Michael L. Scott, Anna Sher
Anna Sher, Martin F. Quigley, editor(s)
2013, Book chapter
This chapter focuses on the restoration of riparian systems in the context of Tamarix control—that is, Tamarix-dominated sites are converted to a replacement vegetation type that achieves specific management goals and helps return parts of the system to a desired and more natural state or dynamic. It reviews research related...
