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.
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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
Liquemap: A real-time post-earthquake map of liquefaction probability Liquemap: A real-time post-earthquake map of liquefaction probability
No abstract available.
Authors
Michael J. Bennett, Luke Blair, Thomas L. Holzer, Thomas E. Noce
Assessment of ground deformation due to soil liquefaction in the San Jose, California area by using geotechnical IT Assessment of ground deformation due to soil liquefaction in the San Jose, California area by using geotechnical IT
No abstract available.
Authors
Robert E. Kayen, Keith L. Knudsen, Satoshi Nagata, Yasuo Tanaka
Miocene gold mineralization and exhumation of the southern Shoshone Range, north-central Nevada Miocene gold mineralization and exhumation of the southern Shoshone Range, north-central Nevada
No abstract available.
Authors
Thomas E. Moore, P. B. O’Sullivan
Relations among pH, sulfate, and metals concentrations in anthracite and bituminous coal-mine discharges, Pennsylvania Relations among pH, sulfate, and metals concentrations in anthracite and bituminous coal-mine discharges, Pennsylvania
Water-quality data for discharges from 140 abandoned mines in the Bituminous and Anthracite Coalfields of Pennsylvania illustrate relations among pH, sulfate, and dissolved metal concentrations. The pH for the 140 samples ranged from 2.7 to 7.3, with two modes at pH 2.5 to 4 (acidic) and 6 to 7 (near neutral). Generally, flow rates were smaller and solute concentrations were greater for...
Authors
III Cravotta