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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

Filter Total Items: 5346

Surrogate technologies for continuous suspended-sediment monitoring in the United States

No abstract available.
Authors
John R. Gray, Jeffrey W. Gartner

Sustaining salmonid populations: A caring understanding of naturalness of taxa

Species of the family of Salmonidae occur naturally in Northern Hemisphere waters that remain clear and cool to cold in summer. For purposes of reproduction, salmonids generally behaviorally respond to the currents of streams and lakes in recently glaciated areas. For feeding and maturation, many larger species migrate into existing systems of large lakes, seas, and oceans. The subfamilies include
Authors
Jennifer L. Nielsen, Henry A. Regier

Ten suggestions to strengthen the science of ecology

There are few well-documented, general ecological principles that can be applied to pressing environmental issues. When they discuss them at all, ecologists often disagree about the relative importance of different aspects of the science's original and still important issues. It may be that the sum of ecological science is not open to universal statements because of the wide range of organizationa
Authors
G.E. Belovsky, Daniel B. Botkin, T.A. Crowl, K.W. Cummins, J.F. Franklin, M.L. Hunter, A. Joern, D.B. Lindenmayer, J.A. MacMahon, C.R. Margules, J. M. Scott

The bioavailability of chemicals in soil for earthworms

The bioavailability of chemicals to earthworms can be modified dramatically by soil physical/chemical characteristics, yet expressing exposure as total chemical concentrations does not address this problem. In order to understand the effects of modifying factors on bioavailability, one must measure and express chemical bioavailability to earthworms in a consistent, logical manner. This can be acco
Authors
R. Lanno, J. Wells, Jason M. Conder, K. Bradham, N. Basta

The Coso EGS project - Recent developments

An Engineered Geothermal System (EGS) field experiment will be conducted to hydraulically stimulate injection well 34-9RD2, located on the east flank of the Coso geothermal reservoir, with the objective of increasing the injection rate of this well to 750 gpm at a wellhead pressure of 100 psi or less. The stimulation of this well is expected to create hydraulic communication with the recently dril
Authors
P. Rose, J. Sheridan, J. McCulloch, J.N. Moore, K. Kovac, P. Spielman, R. Weidler, S. Hickman

The Coso geothermal area: A laboratory for advanced MEQ studies for geothermal monitoring

The permanent 16-station network of three-component digital seismometers at the Coso geothermal area, California, supplemented by 14 temporary instruments deployed in connection with the DOE Enhanced Geothermal Systems (EGS) Project, provides high-quality microearthquake (MEQ) recordings that are well suited to monitoring a producing geothermal area. We are currently using these data to investigat
Authors
B. R. Julian, G. R. Foulger, K. Richards-Dinger

The effects of wavelet compression on Digital Elevation Models (DEMs)

This paper investigates the effects of lossy compression on floating-point digital elevation models using the discrete wavelet transform. The compression of elevation data poses a different set of problems and concerns than does the compression of images. Most notably, the usefulness of DEMs depends largely in the quality of their derivatives, such as slope and aspect. Three areas extracted from t
Authors
M. J. Oimoen

The effects of wildfire on the peak streamflow magnitude and frequency, Frijoles and Capulin Canyons, Bandelier National Monument, New Mexico

In June of 1977, the La Mesa fire burned 15,270 acres in and around Frijoles Canyon, Bandelier National Monument and the adjacent Santa Fe National Forest, New Mexico. The Dome fire occurred in April of 1996 in Bandelier National Monument, burned 16,516 acres in Capulin Canyon and the surrounding Dome Wilderness area. Both canyons are characterized by extensive archeological artifacts, which could
Authors
J.E. Veenhuis

The Hurricane-flood-landslide continuum-forecasting Hurricane effects at landfall

The integration of remote-sensing and in-situ observations, and assimilation of these observations into high-resolution mesoscale models was described. It was observed that the greatest loss of life and property is the direct result of the storm because of the high winds and heavy rain. The research were conducted to develop a warning system that included satellite observations to track dangerous
Authors
A. J. Negri, J. H. Golden, R. G. Updike

The LISST-SL streamlined isokinetic suspended-sediment profiler

The new manually deployed Laser In Situ Scattering Transmissometer-StreamLined profiler (LISST-SL) represents a major technological advance for suspended-sediment measurements in rivers. The LISST-SL is being designed to provide real-time data on sediment concentrations and particle-size distributions. A pressure sensor and current meter provide real-time depth and ambient velocity data, respect
Authors
John R. Gray, Yogesh C. Agrawal, H. Charles Pottsmith
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