A semi-empirical model for the estimation of maximum horizontal displacement due to liquefaction-induced lateral spreading
Allison T. Faris, Raymond B. Seed, Robert E. Kayen, Jiaer Wu
2006, Conference Paper, Proceedings of the 8th U.S. National Conference on Earthquake Engineering
During the 1906 San Francisco Earthquake, liquefaction-induced lateral spreading and resultant ground displacements damaged bridges, buried utilities, and lifelines, conventional structures, and other developed works. This paper presents an improved engineering tool for the prediction of maximum displacement due to liquefaction-induced lateral spreading. A semi-empirical approach is employed, combining mechanistic...
Watershed characteristics and pre-restoration surface-water hydrology of Minebank Run, Baltimore County, Maryland, water years 2002-04
Edward J. Doheny, Roger J. Starsoneck, Elise A. Striz, Paul M. Mayer
2006, Scientific Investigations Report 2006-5179
Stream restoration efforts have been ongoing in Maryland since the early 1990s. Physical stream restoration often involves replacement of lost sediments to elevate degraded streambeds, re-establishment of riffle-pool sequences along the channel profile, planting vegetation in riparian zones, and re-constructing channel banks, point bars, flood plains, and stream-meanders. The primary...
Guided to gather: toy plane upgraded with telemetry
Vanessa Wiese, Dana Wiese
2006, GPS World (17) 32-38
GPS/INS and infrared optical sensors propel USGS's transformation of a remote-controlled one-quarter scale recreational aircraft into a low-cost unmanned aerial vehicle designed for environmental particulate collection....
Preliminary Utah oil shale database
John R. Dyni, J. R. Donnell, Vanden Berg, D.E. Tabet
2006, Open-File Report 2006-1295
Multimodeling: new approaches for linking ecological models
Louis J. Gross, Donald L. DeAngelis
J. Michael Scott, Patricia J. Heglund, Michael L. Morrison, editor(s)
2006, Book chapter, Predicting Species Occurences: Issues of Accuracy and Scale
The Everglades region of South Florida presents one of the major natural system management challenges facing the United States. With its assortment of alligators, crocodiles, manatees, panthers, large mixed flocks of wading birds, highly diverse subtropical flora, and sea of sawgrass, the ecosystem is unique in this country (Davis...
Quality-assurance plan for the analysis of fluvial sediment by the U.S. Geological Survey New Mexico Water Science Center Sediment Laboratory
Jessica A. Stiles
2006, Open-File Report 2006-1333
This report describes laboratory procedures used by the U.S. Geological Survey New Mexico Water Science Center Sediment Laboratory for the processing and analysis of fluvial-sediment samples for concentration of sand and finer material. The report details the processing of a sediment sample through the laboratory from receiving the sediment sample,...
Sri Lanka field survey after the December 2004 Indian Ocean tsunami
James Goff, Philip L-F. Liu, Bretwood Higman, Robert Morton, Bruce E. Jaffe, Haindra Fernando, Patrick Lynett, Hermann Fritz, Costas Synolakis, Starin Fernando
2006, Earthquake Spectra (22) 155-172
An International Tsunami Survey Team (ITST) consisting of scientists from the United States, New Zealand, and Sri Lanka evaluated the impacts of the 26 December 2004 transoceanic tsunami in Sri Lanka two weeks after the event. Tsunami runup height, inundation distance, morphological changes, and sedimentary characteristics of deposits were recorded...
Sedimentary processes in modern and ancient oceanic arc settings: evidence from the Jurassic Talkeetna Formation of Alaska and the Mariana and Tonga Arcs, western Pacific
Amy E. Draut, Peter D. Clift
2006, Journal of Sedimentary Research (76) 493-514
Sediment deposited around oceanic volcanic ares potentially provides the most complete record of the tectonic and geochemical evolution of active margins. The use of such tectonic and geochemical records requires an accurate understanding of sedimentary dynamics in an arc setting: processes of deposition and reworking that affect the degree to...
Tsunami: wave of change
Eric L. Geist, Vasily V. Titov, Costas E. Synolakis
2006, Scientific American (294) 56-63
No abstract available....
ADMAP: A Digital Magnetic Anomaly Map of the Antarctic
Alexander Golynsky, Massimo Chiappini, Detlef Damaske, Fausto Ferraccioli, Carol A. Finn, Takemi Ishihara, Hyung Rae Kim, Luis Kovacs, Valery Masolov, Peter Morris, Ralph R. B. von Frese
Dieter Karl Futterer, Georg Kleinschmidt, Hubert Miller, Franz Tessensohn, editor(s)
2006, Book chapter, Antarctica: Contributions to global earth sciences
For a number of years the multi-national ADMAP working group has been compiling near surface and satellite magnetic data in the region south of 60° S. By the end of 2000, a 5 km grid of magnetic anomalies was produced for the entire region. The map readily portrays the first-order...
Foreword
T. J. O'Shea
Roger L. Reep, Robert K. Bonde, editor(s)
2006, Book chapter, The Florida manatee: biology and conservation
No abstract available....
Ecological and sampling constraints on defining landscape fire severity
C.H. Key
2006, Fire Ecology (2) 178-203
Ecological definition and detection of fire severity are influenced by factors of spatial resolution and timing. Resolution determines the aggregation of effects within a sampling unit or pixel (alpha variation), hence limiting the discernible ecological responses, and controlling the spatial patchiness of responses distributed throughout a burn (beta variation). As...
Revisiting Frazier's subdeltas: enhancing datasets with dimensionality, better to understand geologic systems
James Flocks
2006, Gulf Coast Association of Geological Societies Transactions (56) 195-203
Scientific knowledge from the past century is commonly represented by two-dimensional figures and graphs, as presented in manuscripts and maps. Using today's computer technology, this information can be extracted and projected into three- and four-dimensional perspectives. Computer models can be applied to datasets to provide additional insight into complex spatial...
Integration of coral reef ecosystem process studies and remote sensing
John Brook, Kimberly Yates, Robert Halley
2006, Book chapter, Remote sensing of aquatic coastal ecosystem processes: Remote sensing and digital image processing
Worldwide, local-scale anthropogenic stress combined with global climate change is driving shifts in the state of reef benthic communities from coral-rich to micro- or macroalgal-dominated (Knowlton, 1992; Done, 1999). Such phase shifts in reef benthic communities may be either abrupt or gradual, and case studies from diverse ocean basins demonstrate...
Generalized boundaries of the National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
K.J. Hitt
2006, Report
This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas to be studied during the second decade of...
Generalized boundaries of the National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001
K.J. Hitt
2006, Report
This is a GENERALIZED version of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas studied during the first decade of the NAWQA...
Chronic wasting disease infection patterns in female white-tailed deer related to demographics, genetic relationships, and spatial proximity of infected deer in southern Wisconsin
Daniel A. Grear
2006, Thesis
Chronic wasting disease (CWD) is a fatal disease of white-tailed deer (Odocoileus virginianus) caused by transmissible protease resistant prions. Since the discovery of CWD in southern Wisconsin in 2001, more than 20,000 deer have been removed from a >2,500 km2 disease eradication zone surrounding the three initial cases. Nearly all...
Assessing massive flank collapse at stratovolcanoes using 3-D slope stability analysis
Mark E. Reid, Dianne Brien
2006, Book chapter, Landslides from Massive Rock Slope Failure
Massive rock failures pose one of the greatest hazards at stratovolcanoes; more than 20,000 fatalities have resulted worldwide from historical volcano edifice collapses. Although numerous processes can destabilize an edifice, gravitational instability is strongly influenced by the interplay of topography, variable potential failure surfaces, and the three-dimensional (3-D) distributions of...
Overview of the Spirit Mars Exploration Rover mission to Gusev Crater: Landing site to Backstay Rock in the Columbia Hills
R. E. Arvidson, S. W. Squyres, R. C. Anderson, J. F. Bell, D. Blaney, J. Bruckner, N.A. Cabrol, W. M. Calvin, M. H. Carr, P. R. Christensen, B. C. Clark, L. Crumpler, D. J. Des Marais, P.A. De Souza Jr., C. D'Uston, T. Economou, J. Farmer, W. H. Farrand, W. Folkner, M. Golombek, S. Gorevan, J. A. Grant, R. Greeley, J. Grotzinger, E. Guinness, B.C. Hahn, L. Haskin, Kenneth E. Herkenhoff, J.A. Hurowitz, S. Hviid, J. R. Johnson, G. Klingelhoefer, A. H. Knoll, G. Landis, C. Leff, M. Lemmon, R. Li, M.B. Madsen, M.C. Malin, S. M. McLennan, H.Y. McSween, D. W. Ming, J. Moersch, R.V. Morris, T. Parker, J. W. Rice Jr., L. Richter, R. Rieder, D.S. Rodionov, C. Schroder, M. Sims, M. Smith, P. Smith, Laurence A. Soderblom, R. Sullivan, S.D. Thompson, N.J. Tosca, A. Wang, H. Wänke, J. Ward, T. Wdowiak, M. Wolff, A. Yen
2006, Journal of Geophysical Research E: Planets (111)
Spirit landed on the floor of Gusev Crater and conducted initial operations on soil‐covered, rock‐strewn cratered plains underlain by olivine‐bearing basalts. Plains surface rocks are covered by wind‐blown dust and show evidence for surface enrichment of soluble species as vein and void‐filling materials and coatings. The surface enrichment is the...
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 2001-2012
K.J. Hitt, N. Nakagaki
2006, Report
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas to be studied during the second cycle of the NAWQA...
National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001
K.J. Hitt, N. Nakagaki
2006, Report
This is a coverage of the boundaries and codes used for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program Study-Unit investigations in the conterminous United States, excluding the High Plains Regional Ground-Water Study. The data set represents the areas studied during the first decade of the NAWQA Program, from...
Variation in spring nearshore resident fish species composition and life histories in the lower San Joaquin watershed and delta
Larry R. Brown, Jason T. May
2006, San Francisco Estuary and Watershed Science (4)
Providing freshwater to human populations while protecting or rehabilitating ecosystem health is a significant challenge to water resource managers and requires accurate knowledge of aquatic resources. Previous studies of fish assemblages in the San Francisco Estuary and watershed have focused on specific habitat types, water bodies, or geographic subregions. In...
Heat as a ground water tracer at the Russian River RBF facility, Sonoma County, California
Jim Constantz, Grace W. Su, Christine Hatch
2006, Book chapter, Riverbank filtration hydrology
Temperature is routinely collected as a water quality parameter, but only recently utilized as an environmental tracer of stream exchanges with ground water (Stonestrom and Constantz, 2003). In this paper, water levels and seasonal temperatures were used to estimate streambed hydraulic conductivities and water fluxes. Temperatures and water levels...
Eutrophication
James E. Cloern, T. Krantz, J.E. Duffy
2006, Book chapter, Encyclopedia of earth
No abstract available. ...
Grizzly bear management in Yellowstone National Park: The heart of recovery in the Yellowstone Ecosystem
C.C. Schwartz, K. Gunther
Dale R. McCullough, Koichi Kaji, Masami Yamanaka, editor(s)
2006, Book chapter, Wildlife in Shiretoko and Yellowstone National Parks: Lessons in Wildlife Conservation from Two World Heritage Sites
Grizzly bear (Ursus arctos) management in the Greater Yellowstone Ecosystem (GYE) in the past quarter century has resulted in more than doubling of the population from around 200 to more than 500, expansion of range back into habitats where the bear has extirpated more than a century ago, and a...
