Lauck W. Ward, George W. Andrews
2008, Book
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateAlicia A. Torregrosa, Nora Devoe
2008, General Technical Report RMRS-GTR-204
No abstract available....
Robert Twilley, Brady Couvillion, Imtiaz Hossain, Carola Kaiser, Alaina Owens, Gregory D. Steyer, Jenneke M. Visser
2008, Conference Paper, Mitigating impacts of natural hazards on fishery ecosystems
The development of ecosystem management plans to restore and rehabilitate natural resources requires an understanding of how specific ecological mechanisms regulate the structure and function of ecosystems. To achieve restoration goals, comprehensive plans and engineering designs must effectively change environmental drivers at the regionallevel to reduce stress conditions at the local environment...
Kristin Zouhar, Jane Kapler Smith, Steve Sutherland, Matthew L. Brooks
2008, General Technical Report RMRS-GTR-42
This state-of-knowledge review of information on relationships between wildland fire and nonnative invasive plants can assist fire managers and other land managers concerned with prevention, detection, and eradication or control of nonnative invasive plants. The 16 chapters in this volume synthesize ecological and botanical principles regarding relationships between wildland fire and nonnative...
G. E. Grant, Jeffrey D. G. Marr, C. Hill, S. Johnson, K. Campbell, O. Mohseni, J.R. Wallick, S.L. Lewis, E. A. O’connor, Jon J. Major
2008, Conference Paper
A key issue faced in dam removal is the rate and timing of remobilization and discharge of stored reservoir sediments following the removal. Different removal strategies can result in different trajectories of upstream sediment transport and knickpoint migration. We examine this issue of for the Marmot Dam removal in Sandy...
Thomas L. Holzer
2008, Conference Paper, Proceedings of geotechnical earthquake engineering and soil dynamics IV
Many investigators have applied the liquefaction potential index (LPI) to map regional liquefaction hazard. LPI, which integrates the liquefaction potential of susceptible soil elements at a specific location into a single value, has been used to assess both (1) spatial variability of liquefaction potential, and (2) liquefaction potential of surficial...
Karen R. Burow, Christopher T. Green
2008, Conference Paper, Proceedings of the American Society of Agronomy, California Chapter annual meeting
Ground-water withdrawals in the San Joaquin Valley totaled 64 million m3 /day (19 million ac-ft) in 2000, supplying about 45% of agricultural irrigation demand and about 80% of municipal supply (Hutson et al., 2004). Most of the population and ground-water use are in the eastern San Joaquin Valley, where reliance...
Monica Palaseanu, Leonard Pearlstine
2008, Computers & Geosciences (34) 815-826
The Everglades Depth Estimation Network (EDEN) is an integrated network of real-time water-level monitoring gages and modeling methods that provides scientists and managers with current (2000–present) online water surface and water depth information for the freshwater domain of the Greater Everglades. This integrated system presents data on a 400-m...
Matthew Cimitile, Helen Gibbons
2008, Sound Waves: Coastal science and research news from across the USGS
Every year, volunteers use thousands of discarded Christmas trees to build brush fences in the coastal waters of Louisiana. The fences slow down waves and trap sediment, allowing aquatic vegetation to take root in the still water and stimulating the growth of new marsh. This is one of many efforts...
Barbara H. Lidz, Eugene A. Shinn, J. Harold Hudson, Multer H. Gray, Robert B. Halley, Daniel M. Robbin
2008, Book chapter, Coral reefs of the USA
The Florida Keys is an arcuate, densely populated, westward-trending island chain at the south end of a karstic peninsular Florida Platform (Enos and Perkins 1977; Shinn et al. 1996; Kindinger el al. 1999, 2000). The "keys: mark the southernmost segment of the Atlantic continental margin of the United States. The...
R. Paperno, R. Ruiz-Carus, J.M. Krebs, C.C. McIvor
2008, Florida Scientist (71) 293-304
Introduced exotic species are a well-recognized problem in Florida's subtropical ecosystems. The presence of the exotic Mayan cichlid (Cichlasoma urophthalmus) was first confirmed in Florida in 1983, when numerous individuals were found in the northeastern Florida Bay. Since then, this species has continued to expand its range northward. The capture,...
David G. Zawada, P.R. Thompson, J. Butcher
2008, Revista de Biología Tropical: International Journal of Tropical Biology and Conservation (56) 51-63
Maps of coral ecosystems are needed to support many conservation and management objectives, as well as research activities. Examples include ground-truthing aerial and satellite imagery, characterizing essential habitat, assessing changes, and monitoring the progress of restoration efforts. To address some of these needs, the U.S. Geological Survey developed the Along-Track...
Matthew Cimitile
2008, Bay Soundings
Obviously, no one is recommending cutting down mangroves to sell, but environmental managers are working toward putting a price tag on the benefits they provide to help ensure that they are protected. Though the process is just beginning here, estimates from studies in other locations indicate that the 15,000 acres...
W.F. Waite, T.J. Kneafsey, W.J. Winters, D.H. Mason
2008, Journal of Geophysical Research B: Solid Earth (113)
Physical property measurements of sediment cores containing natural gas hydrate are typically performed on material exposed, at least briefly, to non-in situ conditions during recovery. To examine the effects of a brief excursion from the gas-hydrate stability field, as can occur when pressure cores are transferred to pressurized storage vessels,...
Albert C. Hine, Robert B. Halley, Stanley D. Locker, B. D. Jarrett, Walter C. Jaap, David J. Mallinson, Katherine T. Ciembronowicz, Nancy B. Ogden, Brian Donahue, David Naar
2008, Book chapter, Coral reefs of the USA
This paper summarizes the geomorphic variability of these different reef types, their geologic setting, and the present coral-reef biological community. The paper is organized along a virtual depth transect by presenting different reef settings and types starting from the shallower mid-shelf or mid-ramp setting, moving to the shelf edge, and...
Richard Z. Poore
2008, The Open Paleontology Journal (1) 7-17
Marine records from the northern Gulf of Mexico indicate that significant multidecadal- and century-scale variability was common during the Holocene. Mean annual sea-surface temperature (SST) during the last 1,400 years may have varied by 3°C, and excursions to cold SST coincide with reductions in solar output. Broad trends in Holocene...
Clifford J. Hearn
2008, Book
Coastal basins are defined as estuaries, lagoons, and embayments. This book deals with the science of coastal basins using simple models, many of which are presented in either analytical form or Microsoft Excel or MATLAB. The book introduces simple hydrodynamics and its applications, from the use of simple box and...
G. Aeby, Thierry M. Work, D. Fenner, Eva DiDonato
2008, Conference Paper
Surveys for lesions in corals were conducted at seven sites around Tutuila in June 2004 and January 2005. The objectives of the study were to document the distribution and prevalence of disease in the major genera of corals and crustose coralline algae, systematically describe gross and microscopic morphology of lesions...
Gregory J. McCabe, David M. Wolock
2008, American Meteorological Society, Journal of Hydrometeorology (13)
A monthly snow accumulation and melt model was used with monthly Precipitation-elevation Regressions on Independent Slopes Model (PRISM) temperature and precipitation data to generate time series of 1 April snow water equivalent (SWE) for 1900 through 2008 in the western United States. Averaged across the western United States, SWE generally...
A.M. López-Venegas, Uri S. ten Brink, Eric L. Geist
2008, Marine Geology (254) 35-46
The October 11, 1918 ML 7.5 earthquake in the Mona Passage between Hispaniola and Puerto Rico generated a local tsunami that claimed approximately 100 lives along the western coast of Puerto Rico. The area affected by this tsunami is now significantly more populated. Newly acquired high-resolution bathymetry and seismic reflection...
Deborah Hutchinson, Dianna Shelander, J. Dai, D. McConnell, William Shedd, Matthew Frye, Carolyn D. Ruppel, R. Boswell, Emrys Jones, Timothy S. Collett, Kelly K. Rose, Brandon Dugan, Warren T. Wood
2008, Conference Paper, Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008)
In the late spring of 2008, the Chevron-led Gulf of Mexico Gas Hydrate Joint Industry Project (JIP) expects to conduct an exploratory drilling and logging campaign to better understand gas hydrate-bearing sands in the deepwater Gulf of Mexico. The JIP Site Selection team selected three areas to test alternative geological...
Janet K. Thompson, Nicole L. Jones, Stephen G. Monismith
2008, San Francisco Estuary and Watershed Science (6) 1-11
A one-dimensional numerical model that simulates the effects of whitecapping waves was used to investigate the importance of whitecapping waves to vertical mixing at a 3-meter-deep site in Franks Tract in the Sacramento-San Joaquin Delta over an 11-day period. Locally-generated waves of mean period approximately 2 s were generated under...
Holly A. Michaela, Clifford I. Voss
2008, Proceedings of the National Academy of Sciences of the United States of America (105) 8531-8536
Tens of millions of people in the Bengal Basin region of Bangladesh and India drink groundwater containing unsafe concentrations of arsenic. This high-arsenic groundwater is produced from shallow (<100 m) depths by domestic and irrigation wells in the Bengal Basin aquifer system. The government of Bangladesh has begun to install...
Margaret W. Miller, Robert B. Halley, Arthur C.R. Gleason
2008, Book chapter, Coral reefs of the USA
Navassa is a small oceanic island (5.2km2 in size) located ~30km west of the southwest tip of Haiti, 160km south of the US Naval Base at Guantanamo Bay, Cuba, and in the heart of the Windward Passage. Navassa was claimed in 1856 by the United States. Navassa has also been...
Steven J. Lentz, Melanie Fewings, Peter Howd, Janet Fredericks, Kent Hathaway
2008, Journal of Physical Oceanography (38) 2341-2357
Onshore volume transport (Stokes drift) due to surface gravity waves propagating toward the beach can result in a compensating Eulerian offshore flow in the surf zone referred to as undertow. Observed offshore flows indicate that wave-driven undertow extends well offshore of the surf zone, over the inner shelves of Martha’s...