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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Using selective drainage methods to hydrologically-condition and hydrologically-enforce lidar-derived surface flow Using selective drainage methods to hydrologically-condition and hydrologically-enforce lidar-derived surface flow
The methods to extract surface flow from coarse elevation data are well documented; however, the methods to extract surface flow from high-resolution, high-vertical accuracy digital elevation models (DEMs) derived from light detection and ranging (lidar) are less documented, but yet more complex. As lidar data are increasingly used to generate DEMS, the demand for lidar-derived surface...
Authors
Sandra K. Poppenga, Bruce Worstell, Jason M. Stoker, Susan Greenlee
A method for land surveying sampling optimization strategy A method for land surveying sampling optimization strategy
At present, how to select a limited but representative sample dataset from the existing land information database to guide the new round of land survey and assessment sampling is a critical issue for land sampling strategy study. As a case study to determine and analyze the sample capacity and sample spatial location of land survey sampling for the study area, Panyu District in Guangzhou...
Authors
Junping Zhang, Xiaowen Nie, Yueming Hu, Shuguang Liu, Yuan Tian, Lun Wu
The tract aggregation problem in probabilistic mineral resource assessment The tract aggregation problem in probabilistic mineral resource assessment
No abstract available.
Authors
Keith Long, Lawrence Drew, John Schuenemeyer, David M. Sutphin
Management of surface water and groundwater withdrawals to maintain environmental stream flows in Michigan Management of surface water and groundwater withdrawals to maintain environmental stream flows in Michigan
In 2008, the State of Michigan enacted legislation requiring that new or increased high-capacity withdrawals (greater than 100,000 gallons per day) from either surface water or groundwater be reviewed to prevent Adverse Resource Impacts (ARI). Science- based guidance was sought in defining how groundwater or surface-water withdrawals affect streamflow and in quantifying the relation...
Authors
Howard W. Reeves, Paul W. Seelbach, James R. Nicholas, David A. Hamilton
Trace-metal concentrations in African dust: Effects of long-distance transport and implications for human health Trace-metal concentrations in African dust: Effects of long-distance transport and implications for human health
The Sahara and Sahel lose billions of tons of eroded mineral soils annually to the Americas and Caribbean, Europe and Asia via atmospheric transport. African dust was collected from a dust source region (Mali, West Africa) and from downwind sites in the Caribbean [Trinidad-Tobago (TT) and U.S. Virgin Islands (VI)] and analysed for 32 trace-elements. Elemental composition of African dust...
Authors
Virginia Garrison, Paul Lamothe, Suzette Morman, Geoffrey S. Plumlee
Interpreting Ca and Fe stable isotope signals in carbonates: A new perspective Interpreting Ca and Fe stable isotope signals in carbonates: A new perspective
No abstract available.
Authors
Thomas D. Bullen, Ronald Amundson
Near surface and deep subsurface monitoring for successful geologic sequestration of CO2 Near surface and deep subsurface monitoring for successful geologic sequestration of CO2
No abstract available.
Authors
Yousif K. Kharaka, James J. Thordsen, Thomas D. Bullen, D.R. Cole, T.J. Phelps, J.T. Birkholzer, S.D. Hovorka
Carbon isotope composition of CO2 at Cascade Arc volcanoes Carbon isotope composition of CO2 at Cascade Arc volcanoes
No abstract available.
Authors
William C. Evans, Robert H. Mariner, Deborah Bergfeld, Kinga M. Revesz, John P. McGeehin
Depth profiles in a tropical, volcanic critical zone observatory: Basse-Terre, Guadeloupe Depth profiles in a tropical, volcanic critical zone observatory: Basse-Terre, Guadeloupe
No abstract available.
Authors
H.L. Buss, Arthur F. White, C. Dessert, J. Gaillardet, Alex E. Blum, P.B. Sak
Alkali elements as geothermometers for ridge flanks and subduction zones Alkali elements as geothermometers for ridge flanks and subduction zones
No abstract available.
Authors
W. Wei, M. Kastner, Robert J. Rosenbauer, L.-H. Chan, Y. Weinstein
Preface: Conservation Challenges for Stream Fish Ecologists Preface: Conservation Challenges for Stream Fish Ecologists
No abstract available.
Authors
Paul L. Angermeier
An overview of the web-based Google Earth coincident imaging tool An overview of the web-based Google Earth coincident imaging tool
The Committee on Earth Observing Satellites (CEOS) Visualization Environment (COVE) tool is a browser-based application that leverages Google Earth web to display satellite sensor coverage areas. The analysis tool can also be used to identify near simultaneous surface observation locations for two or more satellites. The National Aeronautics and Space Administration (NASA) CEOS System...
Authors
Gyanesh Chander, B. Kilough, S. Gowda