J. A. Estes, M.J. Paddack
2002, Report
No abstract available at this time...
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Publication Extents
Not all publications have extents, not all extents are completely accurateD.E. McNamara, M.E. Pasyanos
2002, Geophysical Research Letters (29) 61-1-61-4
Arc volcanism in Alaska is strongly correlated with the 100 km depth contour of the western Aluetian Wadati-Benioff zone. Above the eastern portion of the Wadati-Benioff zone however, there is a distinct lack of volcanism (the Denali volcanic gap). We observe high Poisson's ratio values (0.29-0.33) over the entire length...
Robert C. Milici, Peter D. Warwick, Emil D. Attanasi, Craig J. Wandrey
2002, Oil & Gas Journal (100) 24-28
A decision by the government of Bangladesh to sell or not sell some of its natural gas reserves to neighboring countries in South Asia will be important in determining the economic future of Bangladesh, a country with an area about equal to Wisconsin.Bangladesh is a country of 150 million people,...
M.L. Abbott, D. D. Susong, D. P. Krabbenhoft, A.S. Rood
2002, Water, Air, & Soil Pollution (139) 95-114
Mercury (total and methyl) was evaluated in snow samples collected near a major mercury emission source on the Idaho National Engineering and Environmental Laboratory (INEEL) insoutheastern Idaho and 160 km downwind in Teton Range in westernWyoming. The sampling was done to assess near-field (<12 km)deposition rates around the source,...
J.R. Garbarino, E. Snyder-Conn, T.J. Leiker, G. L. Hoffman
2002, Water, Air, & Soil Pollution (139) 183-214
Snow cores were collected over sea ice from four northwest Alaskan Arctic estuaries that represented the annual snowfall from the 1995-1996 season. Dissolved trace metals, major cations and anions, total mercury, and organochlorine compounds were determined and compared to concentrations in previous arctic studies. Traces (<4 nanograms per liter, ng...
Karen L. McKee, Ilka C. Feller, Marianne Popp, Wolfgang Wanek
2002, Ecology (83) 1065-1075
Mangrove islands in Belize are characterized by a unique switching from nitrogen (N) to phosphorus (P) limitation to tree growth from shoreline to interior. Fertilization has previously shown that Rhizophora mangle (red mangrove) fringe trees (5–6 m tall) growing along the shoreline are N limited; dwarf trees (≤ 1.5 m tall) in...
I.J. Ball, M. J. Artmann, S. T. Hoekman
2002, The Wilson Bulletin (114) 404-406
We studied Mallards (Anas platyrhynchos) nesting in artificial nesting structures in northeastern North Dakota and compared clutch size between landscapes where proportion of cropland was either high (mean = 68.9%, cropland landscapes) or low (mean = 30.2%, grassland landscapes). Mallard clutch size was significantly related to nest initiation date...
M.D. Petersen, C.H. Cramer, A.D. Frankel
2002, Pure and Applied Geophysics (159) 2147-2168
We investigate the impact of different rupture and attenuation models for the Cascadia subduction zone by simulating seismic hazard models for the Pacific Northwest of the U.S. at 2% probability of exceedance in 50 years. We calculate the sensitivity of hazard (probabilistic ground motions) to the source parameters and the...
George Choy, Art McGarr
2002, Geophysical Journal International (150) 506-523
The radiated energies, ES, and seismic moments, M0, for 942 globally distributed earthquakes that occurred between 1987 to 1998 are examined to find the earthquakes with the highest apparent stresses (τa=μES/M0, where μ is the modulus of rigidity). The globally averaged τa for shallow earthquakes in all tectonic environments and seismic regions is...
R.A. Harris, R.W. Simpson
2002, Bulletin of the Seismological Society of America (92) 1497-1512
We test the stress shadow hypothesis for large earthquake interactions by examining the relationship between two large earthquakes that occurred in the Mojave Desert of southern California, the 1992 Mw 7.3 Landers and 1999 Mw 7.1 Hector Mine earthquakes. We want to determine if the 1999 Hector Mine earthquake occurred...
Z. Lu, D. J. Meyer
2002, International Journal of Remote Sensing (23) 1063-1074
We used interferometric methods on a pair of repeat-pass ERS-1 synthetic aperture radar (SAR) images to study soil moisture changes over sparsely vegetated targets. The intensity of the SAR image acquired at one time was higher than that of an image acquired at an earlier time. We used a correlation...
T.A. Will, T.R. Reinert, Cecil A. Jennings
2002, Journal of Fish Biology (60) 532-544
The striped bass Morone saxatilis population in the Savannah River (south-eastern U.S.A.) collapsed in the 1980s, and recent efforts to restore the population have resulted in increased catch-per-unit-effort (CPUE) of striped bass in the Savannah River Estuary (SRE). The abundance of eggs and larvae, however, remain well below historic levels....
Larry J. Puckett, Timothy K. Cowdery
2002, Journal of Environmental Quality (31) 782-796
A combination of ground water modeling, chemical and dissolved gas analyses, and chlorofluorocarbon age dating of water was used to determine the relation between changes in agricultural practices, and NO−3 concentrations in ground water of a glacial outwash aquifer in west-central Minnesota. The results revealed a redox zonation throughout the saturated...
Jimmy O. Adegoke, A.M. Carleton
2002, Journal of Hydrometeorology (3) 395-405
Satellite-derived vegetation indices extracted over locations representative of midwestern U.S. cropland and forest for the period 1990–94 are analyzed to determine the sensitivity of the indices to neutron probe soil moisture measurements of the Illinois Climate Network (ICN). The deseasoned (i.e., departures from multiyear mean annual cycle) soil moisture measurements...
Edward E. Little
S. Marshall Adams, editor(s)
2002, Book chapter, Biological indicators of aquatic ecosystem stress
No abstract available....
Donald E. Tillitt, Diana M. Papoulias
2002, Toxicological Sciences (69) 1-2
No abstract available....
A.H. Farmer, B.S. Cade, D.F. Stauffer
2002, Conference Paper, Indiana Bat: Biology and Management of an Endangered Species
We assisted with development of a model for maternity habitat of the Indiana bat (Myotis soda/is), for use in conducting assessments of projects potentially impacting this endangered species. We started with an existing model, modified that model in a workshop, and evaluated the revised model, using data previously collected by...
Charles E. Barker, Peter D. Warwick, Robert J. Scott, J.M. Klein, R.W. Hook
2002, Conference Paper, AAPG Annual Meeting
In 2001, The Exploration Company (TXCO), San Antonio, announced the Sacatosa Coalbed Methane (CBM) Field in Maverick County. This field is the first CBM field in Texas (Fig. 1). The field is producing from bituminous coal in the Cretaceous Olmos Formation that outcrops to the west and dips easterly towards...
B. L. Lamb, S. Gillette, N. Burkardt, J. G. Taylor
2002, Report
No abstract available....
Manola Vaquero, M. Esteban, E. Allue, J. Vallverdu, E. Carbonell, J. L. Bischoff
2002, Journal of Archaeological Science (29) 953-958
New U-Series and C14 (AMS) dates are provided for the Abric Agut (Capellades, Barcelona, Spain). This site was previously considered to be of Middle Palaeolithic age according to the characteristics of the lithic assemblage. In addition, human teeth were uncovered and attributed to neandertals. However, radiometric dating clearly indicates a...
G.C. Smith, J.D. Parrish
2002, Estuarine, Coastal and Shelf Science (55) 347-359
Estuaries provide juvenile nursery habitat for many species of fish that inhabit marine environments as adults. In Hawaii, some juvenile Caranx ignobilis and Caranx melampygus occupy estuaries opportunistically before moving to nearshore ocean habitats. This study examined the extent and nature of estuarine habitat available in the lower Hanalei River...
Peter K. Van De Water, Steven W. Leavitt, Julio L. Betancourt
2002, Oecologia (132) 332-343
Leaves from several desert and woodland species, including gymnosperms and angiosperms with both C3 and C4 physiology, were analyzed to detect trends in δ13Cleaf with elevation and slope aspect along two transects in southeastern Utah and south-central New Mexico, USA. The main difference between the two transects is the...
David M. Leslie Jr., B.S. Clark
2002, Acta Chiropterologica (4) 173-182
Feeding habits of the endangered Ozark big-cared bat (Corynorhinus townsendii ingens) in eastern Oklahoma, USA, were studied from July 1987 through July 1988. Diets were determined from microscopic analysis of fecal pellets and compared with arthropods collected in Malaise traps. Although lepidopterans comprised only 21.5% of the available prey, they...
Richard S. Sojda, John E. Cornely, Leigh H. Fredrickson
A.E. Rizzoli, A.J. Jakeman, editor(s)
2002, Book chapter, Integrated assessment and decision support: Proceedings of the first biennial meeting of the International Environmental Modelling and Software Society
There has always been great interest in the migration of waterfowl and other birds. We have applied queuing theory to modelling waterfowl migration, beginning with a prototype system for the Rocky Mountain Population of trumpeter swans (Cygnus buccinator) in Western North America. The queuing model can be classified as a...
D.T. King, T.C. Michot
2002, Waterbirds (25) 410-416
Aerial surveys of American White Pelicans (Pelecanus erythrorhynchos) were conducted over coastal Louisiana and the delta region of Mississippi on 1-2 days during December, February, and April each year from 1997 to 1999. Additional surveys were conducted in coastal Texas and Mexico during January 1998 and 1999. The numbers,...