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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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
Assessing accuracy of digital land use and terrain data
No abstract available.
Authors
James A. Sturdevant
Recent refinements in calibrating bed-load samplers
No abstract available.
Authors
D. W. Hubbell, H.H. Stevens, J. V. Skinner, J.P. Beverage
Overview of Mount St. Helens volcanic eruption
Dormant since 1857, Mount St. Helens Volcano in southwestern Washington stirred from its repose to erupt on March 27, 1980, following a week of premonitory earthquake activity. The eruption was the first in the conterminous United States since the 1914-1921 activity of Lassen Peak, California. The eruptive activity through May 17 was intermittent and relatively mild, but the accompanying seismic a
Authors
Robert I. Tilling
Broad area forest fuels and topography mapping using digital Landsat and terrain data
A spatially registered digital data base of fuels and terrain information was generated for a test site on the Lolo National Forest in Montana. The data base was developed specifically for providing spatially relevant data to a mathematical fire behavior model developed by the Forest Service which integrates this information along with current weather data to produce realistic estimates of probabl
Authors
Mark Shasby, Robert E. Burgan, Gregg R. Johnson
Estimating rangeland cover proportions with large-scale color-infrared aerial photographs
No abstract available.
Authors
Calvin J. Van Zee, Kris Bonner