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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Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine
The U.S. Geological Survey (USGS), in cooperation with United Technologies Corporation, used an integrated suite of borehole, surface, and water-borne geophysical methods near the site of the former Winthrop Landfill, Winthrop, Maine, to investigate the hydrogeology controlling the transport of leachate from the landfill to nearby Annabessacook Lake. During the fall of 2000 and summer of 2001, the
Authors
Cian B. Dawson, John W. Lane, Eric A. White, Marcel Belaval
Use of vertical-radar profiling to estimate porosity at two New England sites and comparison with neutron log porosity
No abstract available.
Authors
Marc L. Buursink, John W. Lane, W.P. Clement, Michael D. Knoll
Issues in characterizing phenology from satellite observations
Over the past decade, many investigators have published techniques for deriving phenological parameters, especially the start of the growing season (SOS), from time-series satellite imagery. The principal satellite sensor for these studies is the advanced very high resolution radiometer (AVHRR). This study investigates the characteristics of four of the primary methods for identifying SOS; maximum
Authors
B. C. Reed, J.F. Brown
Historical trend in ice thickness on the Piscataquis River in central Maine.
We analyzed a long-term record of ice thickness on the Piscataquis River in central Maine to determine whether there were temporal trends that were associated with climate warming. Trends in ice thickness were compared and correlated with regional time series of winter air temperature, heating degree days (HDD) , date of river ice-out, seasonal center-of-volume date (SCVD) (date on which half of t
Authors
Thomas G. Huntington, Robert W. Dudley, Glenn A. Hodgkins
Evaluating the performance of a crop water balance model in estimating regional crop production
The comparison between a spatially distributed crop index and reported yield was evaluated. The crop index was generated by a crop water balance model that simulates the reduction of crop yield (as a percentage of the potential) due to water deficit. This model is currently operational as a monitoring and forecasting tool for region-wide food security analyses in drought prone countries in Sub-Sah
Authors
Gabriel B. Senay, James Verdin
A thumbnail sketch of what governments around the world are doing to reduce the consequence of landslides
No abstract available.
Authors
Earl E. Brabb, David G. Howell, W. R. Cotton
Distinctive meteoritic components in lunar “cataclysm” impact melt breccias
No abstract available.
Authors
Odette B. James
Landslide triggers and types
The term “landslide trigger” refers to an external stimulus, such as intense rainfall, rapid snowmelt, seismic shaking, volcanic eruption, stream/coastal erosion, or natural dam failure, which causes an immediate or near-immediate response in the form of landslide activity. In this paper, we discuss the types of landslides caused by these triggering processes and present a limited number of worldw
Authors
Robert L. Schuster, Gerald F. Wieczoreck
Streamer resistivity surveys in delmarva coastal bays
No abstract available.
Authors
Frank T. Manheim, David E. Krantz, Donald S. Snyder, Brian Sturgis
Reducing Vulnerability of Ports and Harbors to Earthquake and Tsunami Hazards
Recent scientific research suggests the Pacific Northwest could experience catastrophic earthquakes in the near future, both from distant and local sources, posing a significant threat to coastal communities. Damage could result from numerous earthquake-related hazards, such as severe ground shaking, soil liquefaction, landslides, land subsidence/uplift, and tsunami inundation. Because of their ge
Authors
Nathan J. Wood, James W. Good, Robert F. Goodwin
What governments are doing to reduce the consequences of landslides
No abstract available.
Authors
E. E. Brabb, D. G. Howell, W. R. Cotton
Ongoing research experiments at the former Soviet nuclear test site in eastern Kazakhstan
Degelen mountain, located in EasternKazakhstan near the city of Semipalatinsk, was once the Soviets most active underground nuclear test site. Two hundred fifteen nuclear tests were conducted in 181 tunnels driven horizontally into its many ridges--almost twice the number of tests as at any other Soviet underground nuclear test site. It was also the site of the first Soviet underground nuclear tes
Authors
William S. Leith, Luke J. Kluchko, Vladimir Konovalov, Gerard Vouille