Conference Papers
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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 airborne geophysical surveys to improve groundwater resource management models
Increasingly, groundwater management requires more accurate hydrogeologic frameworks for groundwater models. These complex issues have created the demand for innovative approaches to data collection. In complicated terrains, groundwater modelers benefit from continuous high‐resolution geologic maps and their related hydrogeologic‐parameter estimates. The USGS and its partners have collaborated to
Authors
Jared D. Abraham, James C. Cannia, Steven M. Peterson, Bruce D. Smith, Burke J. Minsley, Paul A. Bedrosian
Using GIS and Google Earth for the creation of the Going-to-the-Sun Road Avalanche Atlas, Glacier National Park, Montana, USA
Snow avalanche paths are key geomorphologic features in Glacier National Park, Montana, and an important component of mountain ecosystems: they are isolated within a larger ecosystem, they are continuously disturbed, and they contain unique physical characteristics (Malanson and Butler, 1984). Avalanches impact subalpine forest structure and function, as well as overall biodiversity (Bebi et al.,
Authors
Erich H. Peitzsch, Daniel B. Fagre, Mark Dundas
Whooping crane titers in response to eastern equine encephalitis immunization
No abstract available.
Authors
Glenn H. Olsen
Water-level conditions in selected confined aquifers of the New Jersey and Delaware Coastal Plain
No abstract available
Authors
Vincent T. DePaul, Robert Rosman, Pierre Lacombe
Changes in the global water cycle
No abstract available
Authors
D.P. Lettenmaier, V. Aizen, A. Amani, T. Bohn, F. Giorgi, S. Harrison, Thomas G. Huntington, R. Lawford, P. Letitre, H. Lins, J. Magomi, G-K. Park, I. Severskiy, W.J. Shuttleworth, P. Singh, S. Sorooshian, W. Struckmeier, K. Takeuchi, L. Tallaksen, C. Vorosmarty, Tandorig Yan, T. Zhang
Deglaciation in the southeastern Laurentide Sector and the Hudson Valley – 15,000 Years of vegetational and climate history
In this field trip, we provide a review of the significant controversy concerning the timing of deglaciation in the Hudson and Wallkill Valleys. We outline the differences in methodology and chronology with a circular route throughout the Hudson and Wallkill valleys. We begin the trip at Lake Mohonk near New Paltz led by Kirsten Menking and Dorothy Peteet, then continue to the “black dirt” region
Authors
Dorothy M. Peteet, John Rayburn, Kirsten M. Menking, Guy Robinson, Byron D. Stone
Road to the kingdom: A bedrock transect across the Pre-Silurian Rowe-Hawley Belt in central Vermont
No abstract available.
Authors
Jonathan Kim, Marjorie H. Gale, R. Coish, Jo Laird, Gregory J. Walsh
Identifying 5 years of land cover change across the nation: Updating NLCD 2001 to 2006 through image change detection
No abstract available.
Authors
George Z. Xian, Collin G. Homer
The Shawangunk and Martinsburg Formations revisited; sedimentology, stratigraphy, mineralogy, geochemistry, structure and paleontology
In southeastern New York Middle Silurian Shawangunk Formation (Figure 1), containing gray conglomerate, sandstone and shale, lies unconformably above the Ordovician Martinsburg Formation, consisting of shales and graywackes. In southwestern New York, near the Port Jervis area, The Shawangunk Formation is overlain by the Bloomsburg Red Beds, the same stratigraphic sequence that occurs in Pennsylvan
Authors
H. R. Feldman, Jack B. Epstein, John A. Smoliga
TerraLook: A GIS-ready time-series of satellite imagery
The goal of TerraLook is to provide satellite images that anyone can use to see changes in the Earth's surface over time. Landsat and other satellites have been collecting images of the Earth from Space for more than 35 years. TerraLook allows users to create their own collections of georeferenced simulated natural-color JPEG images from Landsat (circa 1975, 1990, 2005) and ASTER (2000 to present)
Authors
Claudia Young, Gary Geller, Eugene A. Fosnight
Fractures, stress and fluid flow prior to stimulation of well 27-15, Desert Peak, Nevada, EGS project
A suite of geophysical logs has been acquired for structural, fluid flow and stress analysis of well 27-15 in the Desert Peak Geothermal Field, Nevada, in preparation for stimulation and development of an Enhanced Geothermal System (EGS). Advanced Logic Technologies Borehole Televiewer (BHTV) and Schlumberger Formation MicroScanner (FMS) image logs reveal extensive drilling-induced tensile fractur
Authors
Nicholas C. Davatzes, Stephen H. Hickman
Hydrogeologic characteristics and water levels of Wilcox aquifer in southwestern and northeastern Arkansas
The Wilcox Group of Eocene and Paleocene age is located throughout most of southern and eastern Arkansas. The Wilcox Group in southern Arkansas is undifferentiated, while in northeastern Arkansas, the Wilcox Group is subdivided into three units: Flour Island, Fort Pillow Sand, and Old Breastworks Formation. The Wilcox Group crops out in southwestern Arkansas in discontinuous, 1 to 3 mi wide bands.
Authors
Aaron L. Pugh, Tony P. Schrader