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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Vision for a worldwide fluvial-sediment information network Vision for a worldwide fluvial-sediment information network
The nations of the world suffer both from the deleterious effects of some natural and human-altered fluxes of fluvial sediment and a lack of consistent and reliable information on the temporal and spatial occurrence of fluvial sediments. Decades ago, this difficulty was unavoidable due to a lack of understanding of the magnitude and scope of environmental influences exerted by fluvial...
Authors
J. R. Gray, W. R. Osterkamp
Workshop establishes the northeastern soil monitoring cooperative Workshop establishes the northeastern soil monitoring cooperative
[No abstract available]
Authors
G.B. Lawrence, S.W. Bailey
WSR-88D observations of volcanic ash WSR-88D observations of volcanic ash
Conclusions that may impact operations are summarized below: ??? Current VCPs may not be optimal for the scharacterization of volcanic events. Therefore, the development of a new VCP that combines the enhanced low level elevation density and increased temporal resolution of VCP 12 with the enhanced sensitivity of VCP 31. ??? Given currently available scan strategies, this preliminary...
Authors
J. Wood, C. Scott, D. Schneider
ADV point measurements within rapids of the Colorado River in Grand Canyon ADV point measurements within rapids of the Colorado River in Grand Canyon
Rapids on the Colorado River in Grand Canyon attract over 20,000 white-water enthusiasts a year and are considered one of the premiere collections of rapids in North America. While this collection of rapids is an important recreational resource, relatively little is known of the specific hydraulics of individual rapids. Flow measurements are occasionally made in the low-velocity reaches...
Authors
Christopher S. Magirl, Peter G. Griffiths, Robert Webb
Using optical proxies for biogeochemical properties to study land coverage and terrestrial inputs of organic carbon into coastal waters from the Penobscot Watershed to the Gulf of Maine Using optical proxies for biogeochemical properties to study land coverage and terrestrial inputs of organic carbon into coastal waters from the Penobscot Watershed to the Gulf of Maine
Coastal waters are physically, biogeochemically, and therefore optically complex as a result of the commingling of waters arising from terrestrial, freshwater and marine ecosystems. Separating the influences of these three ecosystems on the optical properties of the resulting mixture is challenging, particularly given the variability within each. The longterm goals of this project are...
Authors
C. S. Roesler, A. H. Barnard, G. Aiken, Thomas G. Huntington, W. B. Balch, H. Xue
An integrated monitoring approach using multiple reference sites to assess sustainable restoration in coastal Louisiana An integrated monitoring approach using multiple reference sites to assess sustainable restoration in coastal Louisiana
Achieving sustainable resource management in coastal Louisiana requires establishing reference conditions that incorporate the goals and objectives of restoration efforts. Since the reference condition is usually considered sustainable, it can be a gauge to assess the present condition of a (degraded) system or to evaluate progress of management actions toward some target system state...
Authors
Gregory D. Steyer, Robert R. Twilley, Richard C Raynie
A simulation model of land-use change in the Lake Tahoe Basin of California and Nevada, as used in a decision-support system A simulation model of land-use change in the Lake Tahoe Basin of California and Nevada, as used in a decision-support system
The Tahoe Land-Use Change model is a stochastic, spatially explicit simulation of future land-use change—in particular, development and retirement of individual parcels—in the Lake Tahoe Basin of California and Nevada. The Federal, State, and regional management agencies responsible for the basin are revising and integrating their 20-year plans to meet various goals, including...
Authors
Mark L. Hessenflow, David L. Halsing
Last glacial loess sedimentary system of eastern Nebraska and western Iowa Last glacial loess sedimentary system of eastern Nebraska and western Iowa
No abstract available.
Authors
Joseph A. Mason, E. Arthur Bettis, Helen M. Roberts, Daniel R. Muhs, R. M. Joeckel
Radon-222 occurrence in ground water in New Jersey, with emphasis on the Highlands Province Radon-222 occurrence in ground water in New Jersey, with emphasis on the Highlands Province
No abstract available.
Authors
Zoltan Szabo, Vincent T. DePaul
Wave interferometry applied to borehole radar data: Virtual monostatic and multi-offset reflection profiling Wave interferometry applied to borehole radar data: Virtual monostatic and multi-offset reflection profiling
No abstract available.
Authors
Lanbo Liu, John W. Lane, Lieyuan Zhu
Post-earthquake investigations-exercising the NEHRP plan and development of a virtual clearinghouse concept Post-earthquake investigations-exercising the NEHRP plan and development of a virtual clearinghouse concept
No abstract available.
Authors
Thomas L. Holzer, Christopher Rojahn, Charles Scawthorn