Conference Papers
Science Quality and Integrity
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Temporal variability of submarine groundwater discharge: Assessments via radon and seep meters, the southern carmel coast, Israel
Seep meter data from Dor Bay, Israel, showed a steady decrease in submarine groundwater discharge (SGD) rates between March and July 2006 (averages of 34, 10.4 and 1.5 cm d-1 in March, May and July, respectively), while estimates based on radon time series showed remarkably uniform averages (8 cm d-1). The May seep meter data show a rough positive correlation with sea level, unlike the negative co
Authors
Y. Weinstein, Y. Shalem, W. C. Burnett, P.W. Swarzenski, B. Herut
TerraLook: Providing easy, no-cost access to satellite images for busy people and the technologically disinclined
Access to satellite images has been largely limited to communities with specialized tools and expertise, even though images could also benefit other communities. This situation has resulted in underutilization of the data. TerraLook, which consists of collections of georeferenced JPEG images and an open source toolkit to use them, makes satellite images available to those lacking experience with r
Authors
G.N. Geller, Eugene A. Fosnight, Sambhudas Chaudhuri
The 3D fault and vein architecture of strike-slip releasing- and restraining bends: Evidence from volcanic-centre-relatedmineral deposits
High-temperature, volcanic-centre-related hydrothermal systems involve large fluid-flow volumes and are observed to have high discharge rates in the order of 100-400 kg/s. The flows and discharge occur predominantly on networks of critically stressed fractures. The coupling of hydrothermal fluid flow with deformation produces the volumes of veins found in epithermal mineral deposits. Owing to this
Authors
B. R. Berger
The case for infrasound as the long-range map cue in avian navigation
Of the various 'map' and 'compass' components of Kramer's avian navigational model, the long-range map component is the least well understood. In this paper atmospheric infrasounds are proposed as the elusive longrange cues constituting the avian navigational map. Although infrasounds were considered a viable candidate for the avian map in the 1970s, and pigeons in the laboratory were found to det
Authors
J. T. Hagstrum
The CEOS constellation for land surface imaging
A constellation of satellites that routinely and frequently images the Earth's land surface in consistently calibrated wavelengths from the visible through the microwave and in spatial detail that ranges from sub-meter to hundreds of meters would offer enormous potential benefits to society. A well-designed and effectively operated land surface imaging satellite constellation could have great posi
Authors
G. B. Bailey, Marsha Berger, H. Jeanjean, K. P. Gallo
The Committee on Earth Observation Satellites (CEOS): Advancing the global earth observations agenda
[No abstract available]
Authors
B.J. Ryan, B.K. Quirk, T.S. Stryker
The importance of shallow confining units to submarine groundwater flow
In addition to variable density flow, the lateral and vertical heterogeneity of submarine sediments creates important controls on coastal aquifer systems. Submarine confining units produce semi-confined offshore aquifers that are recharged on shore. These low-permeability deposits are usually either late Pleistocene to Holocene in age, or date to the period of the last interglacial highstand. Exte
Authors
J.F. Bratton
The R3/R5 impoundment study: A large-scale management experiment
Managed wetlands provide a broad spectrum of resources to migratory waterbirds (shorebirds, wading birds, and waterfowl) throughout the annual cycle. Successful conservation and management of waterbirds depends on integrated approaches that (1) incorporate larger spatial and temporal scales than traditional approaches to wetland management, and (2) use experimental designs to reduce uncertainty a
Authors
J. E. Lyons, H. P. Laskowski, M.C. Runge, S. Lor, W. L. Kendall, S. Talbott
The response of spit shapes to wave-angle climates
We investigate spit formation and evolution in light of the high-wave-angle instability in shoreline shape arising from a maximizing angle for wave-driven alongshore sediment transport. Single spits emerge in a simple one-contour line numerical model that evolves the coast using morphodynamic feedbacks and a 'climate' of waves approaching the shore from variable directions. Analysis of sediment tr
Authors
A.D. Ashton, A.B. Murray, R. Littlewood
The science, technology and research network (STARNET) a searchable thematic compilation of web resources
International alliances in space efforts have resulted in a more rapid diffusion of space technology. This, in turn, increases pressure on organizations to push forward with technological developments and to take steps to maximize their inclusion into the research and development (R&D) process and the overall advancement and enhancement of space technology. To cope with this vast and rapidly growi
Authors
W.R. Blados, G.A. Cotter, T. Hermann
The USGS national geothermal resource assessment: An update
The U. S. Geological Survey (USGS) is working with the Department of Energy's (DOE) Geothermal Technologies Program and other geothermal organizations on a three-year effort to produce an updated assessment of available geothermal resources. The new assessment will introduce significant changes in the models for geothermal energy recovery factors, estimates of reservoir volumes, and limits to temp
Authors
C.F. Williams, M.J. Reed, S.P. Galanis, J. DeAngelo
Thermal evolution and exhumation of deep-level batholithic exposures, southernmost Sierra Nevada, California
The Tehachapi complex lies at the southern end of the Sierra Nevada batholith adjacent to the Neogene-Quaternary Garlock fault. The complex is composed principally of high-pressure (8-10 kbar) Cretaceous batholithic rocks, and it represents the deepest exposed levels of a continuous oblique crustal section through the southern Sierra Nevada batholith. Over the southern ???100 km of this section, s
Authors
J. Saleeby, K.A. Farley, R. W. Kistler, R. J. Fleck