B.A. Stewart, T.A. Howell, editor(s)
2003, Book chapter, Encyclopedia of water science
No abstract available....
Search Results
183895 results.
Alternate formats: RIS file of the first 3000 search results | Download all results as CSV | TSV | Excel | RSS feed based on this search | JSON version of this page of results
Page 2822, results 70526 - 70550
Publication Extents
Not all publications have extents, not all extents are completely accurateM.N. Gooseff, Diane M. McKnight, Robert L. Runkel, B. H. Vaughn
2003, Hydrological Processes (17) 1691-1710
In the McMurdo Dry Valleys of Antarctica, glaciers are the source of meltwater during the austral summer, and the streams and adjacent hyporheic zones constitute the entire physical watershed; there are no hillslope processes in these systems. Hyporheic zones can extend several metres from each side...
B. H. Lidz, C. D. Reich, E.A. Shinn
2003, Geological Society of America Bulletin (115) 845-866
High-quality seismic reflection profiles fill a major gap in geophysical data along the south Florida shelf, allowing updated interpretations of the history of the Quaternary coral reef system. Incorporation of the new and existing data sets provides the basis for detailed color maps of the Pleistocene surface and thickness of...
Edward A. Mankinen, Thomas G. Hildenbrand, Christopher J. Fridrich, Edwin H. McKee, Clifford J. Schenkel
2003, Nevada Bureau Mines & Geology Report 50
No abstract available....
A. V. Vecchia
2003, Hydrological Science and Technology (19) 77-98
No abstract available....
Pamela J. Schofield, Stephen T. Ross
2003, Journal of Freshwater Ecology (18) 249-257
Percina (Cottogaster) aurora is an imperiled species under consideration for listing by the U.S. Fish and Wildlife Service. To better understand habitat use of P. aurora, we studied a related and more abundant Cottogasterspecies, Percina copelandi, from the Ouachita River, Arkansas. We used a laboratory stream system to examine mesohabitat selection (pools versus riffles)...
Kelin Wang, Ray E. Wells, Stephane Mazzotti, Roy D. Hyndman, Takeshi Sagiya
2003, Journal of Geophysical Research B: Solid Earth (108)
CAS3D‐2, a new three‐dimensional (3‐D) dislocation model, is developed to model interseismic deformation rates at the Cascadia subduction zone. The model is considered a snapshot description of the deformation field that changes with time. The effect of northward secular motion of the central and southern Cascadia forearc sliver is subtracted...
M. R. Meador, R. M. Goldstein
2003, Environmental Management (31) 504-517
Data collected from 172 sites in 20 major river basins between 1993 and 1995 as part of the US Geological Survey's National Water-Quality Assessment Program were analyzed to assess relations among basinwide land use (agriculture, forest, urban, range), water physicochemistry, riparian condition, and fish community structure. A multimetric approach was...
K. Beck, R. J. Neves
2003, North American Journal of Aquaculture (65) 203-209
A tri-algal diet was fed to three age-groups of the rainbow mussel Villosa iris: ages 2-3 d, 50-53 d, and 3-6 years. Changes in the relative abundance of each algal species were determined in 5-h feeding trials from feeding chambers and by gut content analyses. All age-groups rejected Scenedesmus quadricauda...
Lorraine E. Flint
2003, Water Resources Research (39) 1-1-1-13
A database of physical and hydraulic properties was developed for rocks in the unsaturated zone at Yucca Mountain, Nevada, a site under consideration as a geologic repository for high‐level radioactive waste. The 5320 core samples were collected from 23 shallow (<100 m) and 10 deep (500–1000 m) vertical boreholes. Hydrogeologic...
R.M. Troyer, Gael Kurath
2003, Diseases of Aquatic Organisms (55) 175-185
Infectious hematopoietic necrosis virus (IHNV) is a rhabdovirus which infects salmon and trout and may cause disease with up to 90% mortality. In the Hagerman Valley of Idaho, IHNV is endemic or epidemic among numerous fish farms and resource mitigation hatcheries. A previous study characterizing the genetic diversity among 84...
S. Toprak, T.L. Holzer
2003, Journal of Geotechnical and Geoenvironmental Engineering (129) 315-322
Cone penetration test (CPT) soundings at historic liquefaction sites in California were used to evaluate the predictive capability of the liquefaction potential index (LPI), which was defined by Iwasaki et al. in 1978. LPI combines depth, thickness, and factor of safety of liquefiable material inferred from a CPT sounding into...
K.M. Larson, P. Bodin, J. Gomberg
2003, Science (300) 1421-1424
The 3 November 2002 moment magnitude 7.9 Denali fault earthquake generated large, permanent surface displacements in Alaska and large-amplitude surface waves throughout western North America. We find good agreement between strong ground-motion records integrated to displacement and 1-hertz Global Positioning System (GPS) position estimates collected ??? 140 kilometers from the...
Claudio Latorre, Julio L. Betancourt, Kate A. Rylander, Jay Quade, Oscar Matthei
2003, Palaeogeography, Palaeoclimatology, Palaeoecology (194) 223-246
The Quaternary paleoclimate of the central Andes is poorly understood due to numerous discrepancies among the diverse proxy records that span this geographically and climatically complex region. The exact timing, duration and magnitude of wet and dry phases are seldom duplicated from one proxy type to another, and there have...
Daniel B. Fagre, David L. Peterson, Amy E. Hessl
2003, Climatic Change (59) 263-282
An integrated program of ecosystem modeling and field studies in the mountains of the Pacific Northwest (U.S.A.) has quantified many of the ecological processes affected by climatic variability. Paleoecological and contemporary ecological data in forest ecosystems provided model parameterization and validation at broad spatial and temporal scales for tree growth,...
J.A. Collazo, T.H. White Jr., F. J. Vilella, S.A. Guerrero
2003, Condor (105) 198-207
We report first-year survival rates of 49 captive-reared Hispaniolan Parrots (Amazona ventralis) released in Parque Nacional del Este, Dominican Republic. Our goal was to learn about factors affecting postrelease survival. Specifically, we tested if survival was related to movements and whether modifying prerelease protocols influenced survival rates. We also estimated...
Martin D. Robards, Gary S. Drew, John F. Piatt, Jennifer Marie Anson, Alisa A. Abookire, James L. Bodkin, Philip N. Hooge, Suzann G. Speckman
2003, Report
We studied oceanography (including primary production), secondary production, small schooling fish (SSF), and marine bird and mammal predators in Glacier Bay during 1999 and 2000. Results from these field efforts were combined with a review of current literature relating to the Glacier Bay environment. Since the conceptual model developed by...
David H. Ward, S.E. Ibarra-Obando
Edmund P. Green, Frederick T. Short, editor(s)
2003, Book chapter, World atlas of seagrasses
No abstract available....
B. R. Hacker, T.B. Andersen, D.B. Root, L. Mehl, J.M. Mattinson, J. L. Wooden
2003, Journal of Metamorphic Geology (21) 613-629
The Solund-Hyllestad-Lavik area affords an excellent opportunity to understand the ultrahigh-pressure Scandian orogeny because it contains a near-complete record of ophiolite emplacement, high-pressure metamorphism and large-scale extension. In this area, the Upper Allochthon was intruded by the c. 434 Ma Sogneskollen granodiorite and thrust eastward over the Middle/Lower Allochthon, probably...
Robert T. Ourso, S.A. Frenzel
2003, Hydrobiologia (501) 117-131
We examined biotic and physiochemical responses in urbanized Anchorage, Alaska, to the percent of impervious area within stream basins, as determined by high-resolution IKONOS satellite imagery and aerial photography. Eighteen of the 86 variables examined, including riparian and instream habitat, macroinvertebrate communities, and water/sediment chemistry, were significantly correlated with percent...
J.E. Ebel, D.J. Wald
2003, Earthquake Spectra (19) 511-529
We describe a new probabilistic method that uses observations of modified Mercalli intensity (MMI) from past earthquakes to make quantitative estimates of ground shaking parameters (i.e., peak ground acceleration, peak ground velocity, 5% damped spectral acceleration values, etc.). The method uses a Bayesian approach to make quantitative estimates of the...
Alejandro Cabello-Pasini, Raquel Muniz-Salazar, David H. Ward
2003, Aquatic Botany (76) 31-47
Density, biomass, morphology, phenology and photosynthetic characteristics of Zostera marina were related to continuous measurements of in situ irradiance, attenuation coefficient and temperature at three coastal lagoons in Baja California, Mexico. In situ irradiance was approximately two-fold lower at San Quintin Bay (SQ) than at Ojo de Liebre Lagoon (OL)...
M. Garces, A. Harris, C. Hetzer, J. Johnson, S. Rowland, E. Marchetti, P. Okubo
2003, Geophysical Research Letters (30)
[1] Infrasonic array data collected at Kīlauea Volcano, Hawai'i, during November 12–21, 2002 indicate that the active vents and lava tube system near the Pu'u 'Ō'ō vent complex emit almost continuous infrasound in the 0.3–10 Hz frequency band. The spectral content of these infrasonic signals matches well that of synchronous...
D.D. Dauble, T.P. Hanrahan, D.R. Geist, M.J. Parsley
2003, North American Journal of Fisheries Management (23) 641-659
Salmonid habitats in main-stem reaches of the Columbia and Snake rivers have changed dramatically during the past 60 years because of hydroelectric development and operation. Only about 13% and 58% of riverine habitats in the Columbia and Snake rivers, respectively, remain. Most riverine habitat is found in the upper Snake...
Chengquan Huang, Collin G. Homer, Limin Yang
Michael A. Wulder, Steven E. Franklin, editor(s)
2003, Book chapter, Remote sensing of forest environments: Concepts and case studies
Increasing demands on forest resources require comprehensive, consistent and up-to-date information on those resources at spatial scales appropriate for management decision-making and for scientific analysis. While such information can be derived using coarse spatial resolution satellite data (e.g. Tucker et al. 1984; Zhu and Evans 1994; Cihlar et al. 1996;...