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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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
Operational calibration and validation of landsat data continuity mission (LDCM) sensors using the image assessment system (IAS) Operational calibration and validation of landsat data continuity mission (LDCM) sensors using the image assessment system (IAS)
Systematic characterization and calibration of the Landsat sensors and the assessment of image data quality are performed using the Image Assessment System (IAS). The IAS was first introduced as an element of the Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) ground segment and recently extended to Landsat 4 (L4) and 5 (L5) Thematic Mappers (TM) and Multispectral Sensors (MSS) on...
Authors
Esad Micijevic, Ron Morfitt
The use of the Sonoran Desert as a pseudo-invariant site for optical sensor cross-calibration and long-term stability monitoring The use of the Sonoran Desert as a pseudo-invariant site for optical sensor cross-calibration and long-term stability monitoring
The Sonoran Desert is a large, flat, pseudo-invariant site near the United States-Mexico border. It is one of the largest and hottest deserts in North America, with an area of 311,000 square km. This site is particularly suitable for calibration purposes because of its high spatial and spectral uniformity and reasonable temporal stability. This study uses measurements from four different...
Authors
A. Angal, Gyanesh Chander, Taeyoung Choi, Aisheng Wu, Xiaoxiong Xiong
Use of EO-1 Hyperion data to calculate spectral band adjustment factors (SBAF) between the L7 ETM+ and Terra MODIS sensors Use of EO-1 Hyperion data to calculate spectral band adjustment factors (SBAF) between the L7 ETM+ and Terra MODIS sensors
Different applications and technology developments in Earth observations necessarily require different spectral coverage. Thus, even for the spectral bands designed to look at the same region of the electromagnetic spectrum, the relative spectral responses (RSR) of different sensors may be different. In this study, spectral band adjustment factors (SBAF) are derived using hyperspectral...
Authors
Gyanesh Chander, N. Mishra, Dennis L. Helder, David Aaron, T. Choi, A. Angal, X. Xiong
Golden Gate Bridge response: a preliminary study with low amplitude earthquake data Golden Gate Bridge response: a preliminary study with low amplitude earthquake data
No abstract available.
Authors
Mehmet Çelebi, Christopher Stephens, Erol Kalkan