Conference Papers
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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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Economic geology of Tioga and Bradford Counties
No abstract available
Authors
P.B. Luce, W.E. Edmunds
Geologic transect of the northern Diablo Range, California
No abstract available.
Authors
M. Clark Blake
On the use of nonlinear soil models
The basic definitions of, and the differences between, currently available soil models are reviewed. These models are applied to site response analyses where two depths and two levels of base input motion are considered. Computational results are presented and compared with regard to the effects of using different soil models on computed site response. Other implications resulting from the choice
Authors
Albert T.F. Chen
Road log
No abstract available
Image enhancement through film recorder response contouring
In contrast to the traditional recording from high-altitude aircraft of Earth images directly onto film in their inherently continuous analog form, a Landsat Earth resources satellite samples the ground image brightness and records it on a digital, electronic medium. Although digitization incurs several extra steps in the reproduction of the imagery, it permits manipulation or enhancement of the d
Authors
John E. Boyd
The development and application of a county-level geographic database
The purpose of this paper us to describe the collection of land use data by remote sensing techniques, the incorporation of land use, soils and slope data into a geographic database, and an application of geographic database techniques to a county planning problem. Land use data were successfully interpreted from aerial photographs and incorporated in a geographic database along with digital slop
Authors
James A. Sturdevant
Remote sensing data integration into a geographic information system for the creation of a biogenic hydrocarbon inventory of the San Francisco Bay area
No abstract available.
Authors
R. M. Moreland, Eugene A. Fosnight
Synchrotron radiation and its application to digital subtraction angiography
The intense synchrotron radiation produced at electron storage rings provides a new source of X-rays highly suited to iodine K-edge digital subtraction angiography. The high intensity and small angular divergence permit the radiation to be monochromatized by Bragg diffraction and made available in beams of small vertical size, of arbitrary horizontal width, and of tunable energy. The use of such b
Authors
E. Rubenstein, E.B. Hughes, L.E. Campbell, R. Hofstadter, Randolph L. Kirk, T.J. Krolicki, J.P. Stone, S. Wilson, H.D. Zeman, W.R. Brody
Verification of land cover maps from Landsat data
No abstract available.
Authors
David S. Linden, John Szajgin