Climate science issues and needs of the CALFED Bay-Delta Program
M. D. Dettinger, W.A. Bennett, D.R. Cayan, J. Florsheim, M. Hughes, B.L. Ingram, A.D. Jassby, N. Knowles, F. Malamud, D. H. Peterson, K. Redmond, L. Smith
2003, Conference Paper, American Meteorological Society, 83rd Annual Meeting, Impacts of Water Availability Symposium
No abstract available....
Controls of streamwater dissolved inorganic carbon dynamics in a forested watershed
J. C. Finlay
2003, Biogeochemistry (62) 231-252
I investigated controls of stream dissolved inorganic carbon (DIC) sources and cycling along a stream size and productivity gradient in a temperate forested watershed in northern California. Dissolved CO2 (CO2 (aq)) dynamics in heavily shaded streams contrasted strongly with those of larger, open canopied sites. In streams with canopy cover...
Development of hardwood seed zones for Tennessee using a geographic information system
L.S. Post, S.E. Schlarbaum, F. Van Manen, R.A. Cecich, A.M. Saxton, J.F. Schneider
2003, Southern Journal of Applied Forestry (27) 172-175
For species that have no or limited information on genetic variation and adaptability to nonnative sites, there is a need for seed collection guidelines based on biological, climatological, and/or geographical criteria. Twenty-eight hardwood species are currently grown for reforestation purposes at the East Tennessee State Nursery. The majority of these...
Mathematical modeling relevant to closed artificial ecosystems
D.L. DeAngelis
2003, Advances in Space Research (31) 1657-1665
The mathematical modeling of ecosystems has contributed much to the understanding of the dynamics of such systems. Ecosystems can include not only the natural variety, but also artificial systems designed and controlled by humans. These can range from agricultural systems and activated sludge plants, down to mesocosms, microcosms, and aquaria,...
Experimental mycobacteriosis in striped bass Morone saxatilis
David T. Gauthier, M. W. Rhodes, W. K. Vogelbein, H. Kator, C. A. Ottinger
2003, Diseases of Aquatic Organisms (54) 105-117
Striped bass Morone saxatilis were infected intraperitoneally with approximately 105 Mycobacterium marinum, M. shottsii sp. nov., or M. gordonae. Infected fish were maintained in a flow-through freshwater system at 18 to 21°C, and were examined histologically and bacteriologically at 2, 4, 6, 8, 17, 26, 36 and 45 wk post-infection (p.i.). M. marinum caused acute peritonitis, followed...
Fish biliary PAH metabolites estimated by fixed-wavelength fluorescence as an indicator of environmental exposure and effects
X. Yang, D.S. Peterson, P. C. Baumann, E.L.C. Lin
2003, Journal of Great Lakes Research (29) 116-123
Biliary polynuclear aromatic hydrocarbon (PAH) metabolites have been studied since the mid 1980s as an indicator of exposure of fish to PAHs. However, the measurements of PAH metabolites are often costly and time-consuming. A simple and rapid method, fixed-wavelength fluorescence (FF), was used to measure the concentrations of benzo(a)pyrene (B[a]P)-type...
Paleozoic and Mesozoic silica-rich seawater: Evidence from hematitic chert (jasper) deposits
Tor Grenne, J. F. Slack
2003, Geology (31) 319-322
Laterally extensive beds of highly siliceous, hematitic chert (jasper) are associated with many volcanogenic massive sulfide (VMS) deposits of Late Cambrian to Early Cretaceous age, yet are unknown in analogous younger (including modern) settings. Textural studies suggest that VMS-related jaspers in the Ordovician Løkken ophiolite of Norway were originally deposited...
Relation between climate variability and stream water quality in the continental United States
A. V. Vecchia
2003, Hydrological Science and Technology (19) 77-98
No abstract available....
Regional quaternary submarine geomorphology in the Florida Keys
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...
Habitat selection of the channel darter, Percina (Cottogaster) copelandi, a surrogate for the imperiled pearl darter, Percina aurora
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)...
Determining long time-scale hyporheic zone flow paths in Antarctic streams
M.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...
Effects of ungulates and prairie dogs on seed banks and vegetation in a North American mixed-grass prairie
J. T. Fahnestock, D.L. Larson, G. E. Plumb, J.K. Detling
2003, Plant Ecology (167) 255-268
The relationship between vegetation cover and soil seed banks was studied in five different ungulate herbivore-prairie dog treatment combinations at three northern mixed-grass prairie sites in Badlands National Park, South Dakota. There were distinct differences in both the seed bank composition and the aboveground vegetation between the off-prairie dog colony...
New K-Ar ages and the geologic evidence against rejuvenated-stage volcanism at Haleakalā, East Maui, a postshield-stage volcano of the Hawaiian island chain
David R. Sherrod, Yoshitomo Nishimitsu, Takahiro Tagami
2003, Geological Society of America Bulletin (115) 683-694
The postshield and previously inferred rejuvenated-stage history of Haleakalā volcano is reevaluated on the basis of 52 new K-Ar ages, 42 from the postshield Kula Volcanics and 10 from the overlying Hāna Volcanics. Postshield extrusion was robust from 0.93 to 0.76 Ma. A period of low extrusion rate or...
The Sohagpur Coalfield Project - A collaborative study of potential coking coal resources by the Geological Survey of India and the U.S. Geological Survey
Robert C. Milici, Abhijit Mukhopadhyay, Peter D. Warwick, S. Adhikari, Edwin R. Landis, S.K. Mukhopadhyay
Ajoy K. Ghose, L.K. Bose, editor(s)
2003, Conference Paper, Mining in the 21st century - Quo vadis? Proceedings of the 19th World Mining Congress
The Geological Survey of India (GSI), Coal Wing, and the U.S. Geological Survey (USGS), Energy Resources Team, conducted a collaborative study of the potential for coking coal resources within the Sohagpur coalfield, Madhya Pradesh, India from 1995 to 2001. The coalfield is located within an extensional basin that contains Permian-...
Exploring Gusev Crater with Spirit: Review of science objectives and testable hypotheses
N.A. Cabrol, E.A. Grin, M. H. Carr, B. Sutter, Johnnie N. Moore, J.D. Farmer, R. Greeley, R.O. Kuzmin, D.J. DesMarais, M.G. Kramer, H. Newsom, C. Barber, I. Thorsos, K. L. Tanaka, N.G. Barlow, D.A. Fike, M.L. Urquhart, B. Grigsby, F.D. Grant, O. de Goursac
2003, Journal of Geophysical Research E: Planets (108)
Gusev Crater was selected as the landing site for the Mars Exploration Rover (MER) Spirit mission. Located at the outlet of Ma'adim Vallis and 250 km south of the volcano Apollinaris Patera, Gusev is an outstanding site to achieve the goals of the MER mission. The crater could have collected...
Post-Depositional Behavior of Cu in a Metal-Mining Polishing Pond (East Lake, Canada)
A.J. Martin, J.L. Jambor, Thomas F. Pedersen, John Crusius
2003, Environmental Science & Technology (37) 4925-4933
The post-depositional behavior of Cu in a gold-mining polishing pond (East Lake, Canada) was assessed after mine closure by examination of porewater chemistry and mineralogy. The near-surface (upper 1.5 cm) sediments are enriched in Cu, with values ranging from 0.4 to 2 wt %. Mineralogical examination revealed that the bulk...
Effect of causal and acausal filters on elastic and inelastic response spectra
D.M. Boore, Sinan Akkar
2003, Earthquake Engineering and Structural Dynamics (32) 1729-1748
With increasing interest in displacement spectra and long-period motions, it is important to check the sensitivity of both elastic and inelastic response spectra to the filtering that is often necessary to remove long period artifacts, even from many modern digital recordings. Using two records of very different character from the...
IHN virus traffic in the Columbia River basin
G. Kurath, K.A. Garver, R.M. Troyer
2003, Conference Paper, Proceedings of the american fisheries society symposium on propagated fish in resource management
Abstract not available ...
Feedback-driven response to multidecadal climatic variability at an alpine treeline
K.J. Alftine, G.P. Malanson, D.B. Fagre
2003, Physical Geography (24) 520-535
The Pacific Decadal Oscillation (PDO) has significant climatological and ecological effects in northwestern North America. Its possible effects and their modification by feedbacks are examined in the forest-tundra ecotone in Glacier National Park, Montana, USA. Tree ring samples were collected to estimate establishment dates in 10...
Imaging spectroscopy: Earth and planetary remote sensing with the USGS Tetracorder and expert systems
Roger N. Clark, Gregg A. Swayze, K. Eric Livo, Raymond F. Kokaly, Steve J. Sutley, J. Brad Dalton, Robert R. McDougal, Carol A. Gent
2003, Journal of Geophysical Research E: Planets (108) 1-44
Imaging spectroscopy is a tool that can be used to spectrally identify and spatially map materials based on their specific chemical bonds. Spectroscopic analysis requires significantly more sophistication than has been employed in conventional broadband remote sensing analysis. We describe a new system that is effective at material identification and...
Assessment of sampling methods to estimate horseshoe crab (Limulus polyphemus L.) egg density in Delaware Bay
P.S. Pooler, D. R. Smith, R.E. Loveland, M.L. Botton, S.F. Michels
2003, Fishery Bulletin (101) 698-703
[No abstract available]...
Mars Exploration Rover Athena Panoramic Camera (Pancam) investigation
J.F. Bell III, S. W. Squyres, Kenneth E. Herkenhoff, J.N. Maki, H.M. Arneson, D. Brown, S.A. Collins, A. Dingizian, S.T. Elliot, E.C. Hagerott, A. G. Hayes, M. J. Johnson, J. R. Johnson, J. Joseph, K. Kinch, M.T. Lemmon, R.V. Morris, L. Scherr, M. Schwochert, M.K. Shepard, G.H. Smith, J. N. Sohl-Dickstein, R.J. Sullivan, W.T. Sullivan, M. Wadsworth
2003, Journal of Geophysical Research E: Planets (108)
The Panoramic Camera (Pancam) investigation is part of the Athena science payload launched to Mars in 2003 on NASA's twin Mars Exploration Rover (MER) missions. The scientific goals of the Pancam investigation are to assess the high‐resolution morphology, topography, and geologic context of each MER landing site, to obtain color...
Multiple oxygen and sulfur isotopic analyses on water-soluble sulfate in bulk atmospheric deposition from the southwestern United States
H. Bao, M.C. Reheis
2003, Journal of Geophysical Research D: Atmospheres (108)
Sulfate is a major component of bulk atmospheric deposition (including dust, aerosol, fog, and rain). We analyzed sulfur and oxygen isotopic compositions of water-soluble sulfate from 40 sites where year-round dust traps collect bulk atmospheric deposition in the southwestern United States. Average sulfur and oxygen isotopic compositions (δ34S and δ18O)...
Sulfur geochemistry of hydrothermal waters in Yellowstone National Park, Wyoming, USA. III. An anion-exchange resin technique for sampling and preservation of sulfoxyanions in natural waters
G.K. Druschel, M.A.A. Schoonen, D.K. Nordstorm, J.W. Ball, Y. Xu, C.A. Cohn
2003, Geochemical Transactions (4) 12-19
A sampling protocol for the retention, extraction, and analysis of sulfoxyanions in hydrothermal waters has been developed in the laboratory and tested at Yellowstone National Park and Green Lake, NY. Initial laboratory testing of the anion-exchange resin Bio-Rad??? AG1-X8 indicated that the resin was well suited for the sampling, preservation,...
Analysis of Slug Tests in Formations of High Hydraulic Conductivity
J.J. Butler Jr., E.J. Garnett, J.M. Healey
2003, Ground Water (41) 620-630
A new procedure is presented for the analysis of slug tests performed in partially penetrating wells in formations of high hydraulic conductivity. This approach is a simple, spreadsheet-based implementation of existing models that can be used for analysis of tests from confined or unconfined aquifers. Field examples of tests exhibiting...
