Applications of the JARS method to study levee sites in southern Texas and southern New Mexico
J. Ivanov, R. D. Miller, J. Xia, J.B. Dunbar
2007, Conference Paper, SEG Technical Program Expanded Abstracts
We apply the joint analysis of refractions with surface waves (JARS) method to several sites and compare its results to traditional refraction-tomography methods in efforts of finding a more realistic solution to the inverse refraction-traveltime problem. The JARS method uses a reference model, derived from surface-wave shear-wave velocity estimates, as...
Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions
L.A. Sebol, W.D. Robertson, Eurybiades Busenberg, Niel Plummer, M.C. Ryan, S.L. Schiff
2007, Journal of Hydrology (347) 1-12
A detailed local-scale monitoring network was used to assess CFC distribution in an unconfined sand aquifer in southwestern Ontario where the zone of 1–5-year-old groundwater was known with certainty because of prior use of a bromide tracer. Groundwater ⩽5 years old was confined to an aerobic zone at ⩽5 m depth and had CFC concentrations...
Pre-, syn-, and postcollisional stratigraphic framework and provenance of upper triassic-upper cretaceous strata in the northwestern talkeetna mountains, alaska
B. A. Hampton, K.D. Ridgway, J.M. O’Neill, G. E. Gehrels, J. Schmidt, R. B. Blodgett
2007, Special Paper of the Geological Society of America 401-438
Mesozoic strata of the northwestern Talkeetna Mountains are located in a regional suture zone between the allochthonous Wrangellia composite terrane and the former Mesozoic continental margin of North America (i.e., the Yukon-Tanana terrane). New geologic mapping, measured stratigraphic sections, and provenance data define a distinct three-part stratigraphy for these strata....
Population-scale movement of coastal cutthroat trout in a naturally isolated stream network
R. E. Gresswell, S.R. Hendricks
2007, Transactions of the American Fisheries Society (136) 238-253
To identify population‐scale patterns of movement, coastal cutthroat trout Oncorhynchus clarkii clarkii tagged and marked (35 radio‐tagged, 749 passive integrated transponder [PIT]‐tagged, and 3,025 fin‐clipped) were monitored from June 1999 to August 2000. The study watershed, located in western Oregon, was above a natural barrier to upstream movement. Emigration...
Abiotic influences on the biomass of Vallisneria americana Michx. In the Upper Mississippi River
Rebecca M. Kreiling, Y. Yin, D.T. Gerber
2007, River Research and Applications (23) 343-349
American wildcelery, Vallisneria americana Michx. is an ecologically important component of aquatic communities in the Upper Mississippi River (UMR). We conducted a study in 2002 to determine the association of several abiotic factors on the vegetative growth of Vallisneria in Navigation Pool 8 (Pool 8) of the UMR. We measured...
Controls on mercury and methylmercury deposition for two watersheds in Acadia National Park, Maine
K.B. Johnson, T.A. Haines, J. S. Kahl, S. A. Norton, A. Amirbahman, K.D. Sheehan
2007, Environmental Monitoring and Assessment (126) 55-67
Throughfall and bulk precipitation samples were collected for two watersheds at Acadia National Park, Maine, from 3 May to 16 November 2000, to determine which landscape factors affected mercury (Hg) deposition. One of these watersheds, Cadillac Brook, burned in 1947, providing a natural experimental design to study the effects of...
Latitudinal variation in avian incubation attentiveness and a test of the food limitation hypothesis
A.D. Chalfoun, T. E. Martin
2007, Animal Behaviour (73) 579-585
Avian incubation attentiveness has important fitness consequences through its influence on the number and quality of hatched young and energetic costs imposed on parents. Nest attentiveness is highly variable across species and geographical regions. We reviewed the literature and found a worldwide pattern that nest attentiveness of passerines is generally...
Use of avoidance response by rainbow trout to carbon dioxide for fish self-transfer between tanks
J. Clingerman, J. Bebak, P. M. Mazik, S.T. Summerfelt
2007, Aquacultural Engineering (37) 234-251
Convenient, economical, and reduced labor fish harvest and transfer systems are required to realize operating cost savings that can be achieved with the use of much larger and deeper circular culture tanks. To achieve these goals, we developed a new technology for transferring fish based on their avoidance behavior to...
Probability of detecting band-tailed pigeons during call-broadcast versus auditory surveys
C. Kirkpatrick, C.J. Conway, K.M. Hughes, J.C. Devos Jr.
2007, Journal of Wildlife Management (71) 231-237
Estimates of population trend for the interior subspecies of band-tailed pigeon (Patagioenas fasciata fasciata) are not available because no standardized survey method exists for monitoring the interior subspecies. We evaluated 2 potential band-tailed pigeon survey methods (auditory and call-broadcast surveys) from 2002 to 2004 in 5 mountain ranges in southern...
Analysis of the Interstate 10 Twin Bridge’s collapse during Hurricane Katrina: Chapter 3D in Science and the storms-the USGS response to the hurricanes of 2005
Genda Chen, Emitt C. Witt III, David Hoffman, Ronaldo Luna, Adam Sevi
2007, Circular 1306-3D
The Interstate 10 Twin Span Bridge over Lake Pontchartrain north of New Orleans, La., was rendered completely unusable by Hurricane Katrina. The cause of the collapse of the bridges generated great interest among hydrologists and structural engineers as well as among the general public. What made this case study even...
Insights on geochemical cycling of U, Re and Mo from seasonal sampling in Boston Harbor, Massachusetts, USA
J.L. Morford, W. R. Martin, Linda H. Kalnejais, R. Francois, Michael H. Bothner, I.-M. Karle
2007, Geochimica et Cosmochimica Acta (71) 895-917
This study examined the removal of U, Mo, and Re from seawater by sedimentary processes at a shallow-water site with near-saturation bottom water O2 levels (240–380 μmol O2/L), very high organic matter oxidation rates (annually averaged rate is 880 μmol C/cm2/y), and shallow oxygen penetration depths (4 mm or less throughout the year). Under these conditions,...
A global organism detection and monitoring system for non-native species
J. Graham, G. Newman, C. Jarnevich, R. Shory, T.J. Stohlgren
2007, Ecological Informatics (2) 177-183
Harmful invasive non-native species are a significant threat to native species and ecosystems, and the costs associated with non-native species in the United States is estimated at over $120 Billion/year. While some local or regional databases exist for some taxonomic groups, there are no effective geographic databases designed to detect...
Workshop establishes the northeastern soil monitoring cooperative
G.B. Lawrence, S.W. Bailey
2007, Conference Paper, Eos
[No abstract available]...
Achieving satellite instrument calibration for climate change
G. Ohring, J. Tansock, W. Emery, J. Butler, L. Flynn, F. Weng, Germain K. St. K., B. Wielicki, C. Cao, M. Goldberg, J. Xiong, G. Fraser, D. Kunkee, D. Winker, L. Miller, S. Ungar, D. Tobin, J.G. Anderson, D. Pollock, S. Shipley, A. Thurgood, G. Kopp, P. Ardanuy, T. Stone
2007, Conference Paper, Eos
[No abstract available]...
Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils
M.R. McHale, Douglas A. Burns, G.B. Lawrence, Peter S. Murdoch
2007, Biogeochemistry (84) 311-331
The 24 ha Dry Creek watershed in the Catskill Mountains of southeastern New York State USA was clearcut during the winter of 1996-1997. The interactions among acidity, nitrate (NO3- ), aluminum (Al), and calcium (Ca2+) in streamwater, soil water, and groundwater were evaluated to determine how they affected the speciation,...
The National Geospatial Program
R.G. Fegeas
2007, Cartography and Geographic Information Science (34) 161-164
No abstract available. ...
Completion of the 2001 National Land Cover Database for the conterminous United States
Collin G. Homer, Jon Dewitz, Joyce Fry, Michael Coan, N. Hossain, C. Larson, Nate Herold, Alexa McKerrow, J.N. VanDriel, James Wickham
2007, Photogrammetric Engineering and Remote Sensing (73) 337-341
No abstract available....
Reconstructing the response of C3 and C4 plants to decadal-scale climate change during the late Pleistocene in southern Illinois using isotopic analyses of calcified rootlets
Hongfang Wang, S.E. Greenberg
2007, Quaternary Research (67) 136-142
The ??13C and ??18O values of well-preserved carbonate rhizoliths (CRs) provide detailed insights into changes in the abundance of C3 and C4 plants in response to approximately decadal-scale changes in growing-season climate. We performed stable isotope analyses on 35-40 CRs sampled at 1-cm intervals from an 18-cm-thick paleosol formed in...
Sediment discharge into a subsiding Louisiana deltaic estuary through a Mississippi River diversion
G.A. Snedden, J.E. Cable, C. Swarzenski, E. Swenson
2007, Estuarine, Coastal and Shelf Science (71) 181-193
Wetlands of the Mississippi River deltaic plain in southeast Louisiana have been hydrologically isolated from the Mississippi River by containment levees for nearly a century. The ensuing lack of fluvial sediment inputs, combined with natural submergence processes, has contributed to high coastal land loss rates. Controlled river diversions have since...
Using geospatial technology to process 911 calls after Hurricanes Katrina and Rita
Craig P. Conzelmann, William Sleavin, Brady R. Couvillion
2007, Circular 1306-3B
The flooding that ensued in the Greater New Orleans area after Hurricane Katrina left thousands of victims trapped and in need of emergency rescue. This paper describes the processing of raw 911-call data into search and rescue products used by emergency responders after the storm....
Hurricane Katrina flooding and oil slicks mapped with satellite imagery
Russell P. Rykhus, Zhong Lu
2007, Circular 1306-3F
A multiple-database approach that combined remotely sensed data from Radarsat-1 and Landsat Thematic Mapper Plus (ETM+) imagery was used to map Hurricane Katrinainduced flooding and to identify offshore oil slicks. Maps depicting the areal extent of flooding, oil slicks, and floating debris provide vital information to emergency managers for directing...
Concentration, UV-spectroscopic characteristics and fractionation of DOC in stormflow from an urban stream, Southern California, USA
John A. Izbicki, Isabel Pimentel, Russell Johnson, George R. Aiken, Jerry Leenheer
2007, Environmental Chemistry (4) 35-48
The composition of dissolved organic carbon (DOC) in stormflow from urban areas has been greatly altered, both directly and indirectly, by human activities and there is concern that there may be public health issues associated with DOC, which has unknown composition from different sources within urban watersheds. This...
Diurnal variation of oxygen and carbonate system parameters in Tampa Bay and Florida Bay
K. K. Yates, C. Dufore, N. Smiley, C. Jackson, R. B. Halley
2007, Marine Chemistry (104) 110-124
Oxygen and carbonate system parameters were measured, in situ, over diurnal cycles in Tampa Bay and Florida Bay, Florida. All system parameters showed distinct diurnal trends in Tampa Bay with an average range of diurnal variation of 39.1 μmol kg− 1 for total alkalinity, 165.1 μmol kg− 1 for total...
USGS National Wildlife Health Center's Quarterly Wildlife Mortality Report (North America)
M. Jankowski, K. Schuler, J. Bradsby
2007, Supplement to the Journal of Wildlife Diseases (43)
USGS National Wildlife Health Center's Quarterly Mortality Report
K. A. Converse, G. McLaughlin
2007, Supplement to the Journal of Wildlife Diseases (43)
