Storm-driven sediment transport in Massachusetts Bay
J.C. Warner, B. Butman, P.S. Dalyander
2008, Continental Shelf Research (28) 257-282
Massachusetts Bay is a semi-enclosed embayment in the western Gulf of Maine about 50 km wide and 100 km long. Bottom sediment resuspension is controlled predominately by storm-induced surface waves and transport by the tidal- and wind-driven circulation. Because the Bay is open to the northeast, winds from the northeast...
Changes in stream chemistry and biology in response to reduced levels of acid deposition during 1987-2003 in the Neversink River Basin, Catskill Mountains
Douglas A. Burns, K. Riva-Murray, R.W. Bode, S. Passy
2008, Ecological Indicators (8) 191-203
Atmospheric acid deposition has decreased in the northeastern United States since the 1970s, resulting in modest increases in pH, acid-neutralizing capacity (ANC), and decreases in inorganic monomeric aluminum (AlIM) concentrations since stream chemistry monitoring began in the 1980s in the acid-sensitive upper Neversink River basin in the Catskill Mountains of...
Sensitivity of June near‐surface temperatures and precipitation in the eastern United States to historical land cover changes since European settlement
John E. Strack, Roger A. Pielke Sr., Louis T. Steyaert, Robert G. Knox
2008, Water Resources Research (44) 1-13
Land cover changes alter the near surface weather and climate. Changes in land surface properties such as albedo, roughness length, stomatal resistance, and leaf area index alter the surface energy balance, leading to differences in near surface temperatures. This study utilized a newly developed land cover data set for the...
Anthropogenic and natural lead isotopes in Fe-hydroxides and Fe-sulphates in a watershed associated with arsenic-enriched groundwater, Maine, USA
Robert A. Ayuso, Nora K. Foley
2008, Geochemistry: Exploration, Environment, Analysis (8) 77-89
A survey of the natural and anthropogenic sources of lead contributing to secondary minerals in sulphidic schists associated with arsenic-enriched groundwater in Coastal Maine shows that the most likely source is natural Pb, particularly from coexisting sulphide minerals. The secondary minerals also reflect notable contributions from anthropogenic Pb. The Pb...
Postearthquake relaxation after the 2004 M6 Parkfield, California, earthquake and rate-and-state friction
J.C. Savage, J. Langbein
2008, Journal of Geophysical Research B: Solid Earth (113)
An unusually complete set of measurements (including rapid rate GPS over the first 10 days) of postseismic deformation is available at 12 continuous GPS stations located close to the epicenter of the 2004 M6.0 Parkfield earthquake. The principal component modes for the relaxation of the ensemble of those 12 GPS...
Detection rates of the MODIS active fire product in the United States
T. J. Hawbaker, V. C. Radeloff, A.D. Syphard, Z. Zhu, S. I. Stewart
2008, Remote Sensing of Environment (112) 2656-2664
MODIS active fire data offer new information about global fire patterns. However, uncertainties in detection rates can render satellite-derived fire statistics difficult to interpret. We evaluated the MODIS 1??km daily active fire product to quantify detection rates for both Terra and Aqua MODIS sensors, examined how cloud cover and fire...
Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound
L.J. Poppe, S.J. Williams, M. S. Moser, N.A. Forfinski, H.F. Stewart, E. F. Doran
2008, Journal of Coastal Research (24) 255-266
Six Mile Reef, a sandy, 22-m-high shoal trending east-west and located about 7.8 km off the Connecticut coast, has a core of postglacial marine deltaic deposits mantled by tidally reworked modern sediments. Sedimentary environments off the eastern end of the shoal are characterized by processes associated with long-term erosion or...
Late-seasonal activity and diet of the evening bat (Nycticeius humeralis) in Nebraska
Keith Geluso, J.P. Damm, E.W. Valdez
2008, Western North American Naturalist (68) 21-24
In North America, Nebraska represents part of the northwestern edge of the distribution for the evening bat (Nycticeius humeralis). To date, little information on this bat's natural history has been published from the state or from other parts of the Great Plains. Here we report on aspects of its natural...
InSAR observations of deformation associated with new episodes of volcanism at Kilauea Volcano, Hawai'i, 2007
Michael P. Poland
2008, Conference Paper, European Space Agency, (Special Publication) ESA SP
In June 2007, the Pu'u 'Ō'ō-Kūpaianaha eruption of Kīlauea Volcano was interrupted when magma intruded the east rift zone (ERZ), resulting in a small extrusion of lava near Makaopuhi Crater. Deformation associated with the activity was exceptionally well-documented by ASAR interferometry, which indicates deflation of the summit and uplift and...
Evaluation of an index of biotic integrity approach used to assess biological condition in western U.S. streams and rivers at varying spatial scales
M. R. Meador, T.R. Whittier, R. M. Goldstein, R. M. Hughes, D.V. Peck
2008, Transactions of the American Fisheries Society (137) 13-22
Consistent assessments of biological condition are needed across multiple ecoregions to provide a greater understanding of the spatial extent of environmental degradation. However, consistent assessments at large geographic scales are often hampered by lack of uniformity in data collection, analyses, and interpretation. The index of biotic integrity (IBI) has been...
Characteristics of mangrove swamps managed for mosquito control in eastern Florida, USA
B. Middleton, D. Devlin, E. Proffitt, Karen McKee, K.F. Cretini
2008, Marine Ecology Progress Series (371) 117-129
Manipulations of the vegetation and hydrology of wetlands for mosquito control are common worldwide, but these modifications may affect vital ecosystem processes. To control mosquitoes in mangrove swamps in eastern Florida, managers have used rotational impoundment management (RIM) as an alternative to the worldwide practice of mosquito ditching. Levees surround...
Influence of dams on river-floodplain dynamics in the Elwha River, Washington
K.K. Kloehn, T.J. Beechie, S.A. Morley, H.J. Coe, J.J. Duda
2008, Northwest Science (82) 224-235
The Elwha dam removal project presents an ideal opportunity to study how historic reduction and subsequent restoration of sediment supply alter river-floodplain dynamics in a large, forested river floodplain. We used remote sensing and onsite data collection to establish a historical record of floodplain dynamics and a baseline of current...
Trans-Alaska Crustal Transect and continental evolution involving subduction underplating and synchronous foreland thrusting
Gary S. Fuis, Thomas E. Moore, George Plafker, T.M. Brocher, M. A. Fisher, Walter D. Mooney, W. J. Nokleberg, R.A. Page, B. C. Beaudoin, N.I. Christensen, A. R. Levander, W. J. Lutter, R. W. Saltus, N.A. Ruppert
2008, Geology (36) 267-270
We investigate the crustal structure and tectonic evolution of the North American continent in Alaska, where the continent has grown through magmatism, accretion, and tectonic underplating. In the 1980s and early 1990s, we conducted a geological and geophysical investigation, known as the Trans-Alaska Crustal Transect (TACT), along a 1350-km-long corridor...
New Orleans and Hurricane Katrina. IV: Orleans East Bank (Metro) protected basin
R.B. Seed, R.G. Bea, A. Athanasopoulos-Zekkos, G.P. Boutwell, J.D. Bray, C. Cheung, D. Cobos-Roa, J. Cohen-Waeber, B.D. Collins, L.F. Harder Jr., R. E. Kayen, J.M. Pestana, M.F. Riemer, J.D. Rogers, R. Storesund, X. Vera-Grunauer, Joseph Wartman
2008, Journal of Geotechnical and Geoenvironmental Engineering (134) 762-779
This paper addresses damage caused by Hurricane Katrina to the main Orleans East Bank protected basin. This basin represented the heart of New Orleans, and contained the main downtown area, the historic French Quarter, the Garden District, and the sprawling Lakefront and Canal Districts. Nearly half of the loss of...
Mesozoic (Upper Jurassic-Lower Cretaceous) deep gas reservoir play, central and eastern Gulf coastal plain
E. A. Mancini, P. Li, D.A. Goddard, V.O. Ramirez, S.C. Talukdar
2008, American Association of Petroleum Geologists Bulletin (92) 283-308
The Mesozoic (Upper Jurassic-Lower Cretaceous) deeply buried gas reservoir play in the central and eastern Gulf coastal plain of the United States has high potential for significant gas resources. Sequence-stratigraphic study, petroleum system analysis, and resource assessment were used to characterize this developing play and to identify areas in the...
Predicting the locations of naturally fishless lakes
Emily Gaenzle Schilling, C.S. Loftin, K.E. Degoosh, Alexander D. Huryn, K.E. Webster
2008, Freshwater Biology (53) 1021-1035
1. Fish have been introduced into many previously fishless lakes throughout North America over the past 100+ years. It is difficult to determine the historical distribution of fishless lakes, however, because these introductions have not always been well-documented. 2. Due to its glacial history and low human population density, the...
Transport of water, carbon, and sediment through the Yukon River Basin
Timothy P. Brabets, Paul F. Schuster
2008, Fact Sheet 2008-3005
In 2001, the U.S. Geological Survey (USGS) began a water-quality study of the Yukon River. The Yukon River Basin (YRB), which encompasses 330,000 square miles in northwestern Canada and central Alaska (fig. 1), is one of the largest and most diverse ecosystems in North America. The Yukon River is more...
Status of the desert tortoise in Red Rock Canyon State Park
Kristin H. Berry, Kevin Keith, Tracy Y. Bailey
2008, California Fish and Game (94) 98-118
We surveyed for desert tortoises, Gopherus agassizii, in the western part of Red Rock Canyon State Park and watershed in eastern Kern County, California, between 2002 and 2004. We used two techniques: a single demographic plot (~4 km2 ) and 37 landscape plots (1-ha each). We estimated population densities of...
Preliminary report on the 29 July 2008 Mw 5.4 Chino Hills, Eastern Los Angeles Basin, California, earthquake sequence
Egill Hauksson, Karen R. Felzer, Doug Given, Michal Giveon, Susan E. Hough, Kate Hutton, Hiroo Kanamori, Volkan Sevilgen, Shengji Wei, Alan K. Yong
2008, Seismological Research Letters (79) 855-866
The 29 July 2008 Mw 5.4 Chino Hills earthquake was the largest event to occur within the greater Los Angeles metropolitan region since the Mw 6.7 1994 Northridge earthquake. The earthquake was widely felt in a metropolitan region with a population of more than 10 million people and was recorded...
Physicochemical properties and chemical characteristics of water, bed sediment, and mussel tissue from selected streams near the Redleg and Peason Ridge impact areas, Fort Polk Military Reservation, Louisiana, June 2001 - November 2003
Roland W. Tollett, Robert B. Fendick Jr.
2008, Scientific Investigations Report 2007-5151
At the request of the U.S. Army Joint Readiness Training Center and Fort Polk, the U.S. Geological Survey collected and analyzed water, bed-sediment, and mussel-tissue samples from selected streams near the Redleg impact area (RIA) and Peason Ridge impact areas (PRIA) at the Fort Polk Military Reservation (Reservation), Louisiana. from...
Seagrass status and trends in the northern Gulf of Mexico: 1940-2002
D. Altsman, R. DeMay
L. Handley, editor(s)
2007, Scientific Investigations Report 2006-5287
Over the past century, seagrass habitats from the bays of Texas to the gulf shores of Florida have decreased. Seagrass beds, which are highly dependent on water quality and clarity for survival, are home to a multitude of aquatic plants and animals and a source of economic activity through commercial...
A Quantitative Threats Analysis for the Florida Manatee (Trichechus manatus latirostris)
Michael C. Runge, Carol A. Sanders-Reed, Catherine A. Langtimm, Christopher J. Fonnesbeck
2007, Open-File Report 2007-1086
The Florida manatee (Trichechus manatus latirostris) is an endangered marine mammal endemic to the southeastern United States. The primary threats to manatee populations are collisions with watercraft and the potential loss of warm-water refuges. For the purposes of listing, recovery, and regulation under the Endangered Species Act (ESA), an understanding...
A core stochastic population projection model for Florida manatees (Trichechus manatus latirostris)
Michael C. Runge, Carol A. Sanders-Reed, Christopher J. Fonnesbeck
2007, Open-File Report 2007-1082
A stochastic, stage-based population model was developed to describe the life history and forecast the population dynamics of the Florida manatee (Trichechus manatus latirostris) in four separate regions of Florida. This population model includes annual variability in survival and reproductive rates, demographic stochasticity, effects of changes in warm-water capacity, and...
The question of recharge to the deep thermal reservoir underlying the geysers and hot springs of Yellowstone National Park: Chapter H in Integrated geoscience studies in Integrated geoscience studies in the Greater Yellowstone Area—Volcanic, tectonic, and hydrothermal processes in the Yellowstone geoecosystem
Robert O. Rye, Alfred Hemingway Truesdell
Lisa A. Morgan, editor(s)
2007, Professional Paper 1717-H
The extraordinary number, size, and unspoiled beauty of the geysers and hot springs of Yellowstone National Park (the Park) make them a national treasure. The hydrology of these special features and their relation to cold waters of the Yellowstone area are poorly known. In the absence of deep drill holes,...
Modeling the dynamic response of a crater glacier to lava-dome emplacement: Mount St Helens, Washington, USA
Stephen F. Price, Joseph S. Walder
2007, Annals of Glaciology (45) 21-28
The debris-rich glacier that grew in the crater of Mount St Helens after the volcano's cataclysmic 1980 eruption was split in two by a new lava dome in 2004. For nearly six months, the eastern part of the glacier was squeezed against the crater wall as the lava...
