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Summary of the Second International Planetary Dunes Workshop: Planetary Analogs - Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18-21, 2010 Summary of the Second International Planetary Dunes Workshop: Planetary Analogs - Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18-21, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18-21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra-terrestrial dunes and dune systems. Two and a half days were spent on five oral sessions and one poster session, a full-day field trip to Great...
Authors
L.K. Fenton, M.A. Bishop, M.C. Bourke, C.S. Bristow, R.K. Hayward, B.H. Horgan, N. Lancaster, T.I. Michaels, D. Tirsch, T.N. Titus, A. Valdez
Tectonics of the Maryland Piedmont along the Potomac River; insight since 1960 and potential transfer to the Pennsylvania Piedmont Tectonics of the Maryland Piedmont along the Potomac River; insight since 1960 and potential transfer to the Pennsylvania Piedmont
This is a summary of a half century of research in the Mary land Piedmont and how it may or may not have implications for the Piedmont of Pennsylvania. Much of the field mapping and all of the isotopic analyses of rocks and minerals of the Maryland Piedmont have been conducted since the 1960 Field Conference of Pennsylvania Geologists “Some tectonic and structural problems of the...
Authors
C. Scott Southworth
The 7Q10 in South Carolina water-quality regulation: Nearly fifty years later The 7Q10 in South Carolina water-quality regulation: Nearly fifty years later
The annual minimum 7-day average streamflow with a 10-year recurrence interval, often referred to as the 7Q10, has a long history of being an important low-flow statistic used in water-quality management in South Carolina as evidenced by its adoption into South Carolina law in 1967. State agencies, such as the South Carolina Department of Health and Environmental Control and the South...
Authors
Toby D. Feaster, Wade M. Cantrell
The Reimer Diatom Herbarium: An important resource for teaching and research The Reimer Diatom Herbarium: An important resource for teaching and research
The Reimer Diatom Herbarium (ILH) at Iowa Lakeside Laboratory (ILL), a field station of Iowa's state universities, contains 3,280 permanent diatom slides of collections made from prairie potholes, alkaline fens, acid bogs, eutrophic lakes, saline lakes, Pleistocene paleolakes, and Miocene fossil deposits near ILL. The herbarium has a focus on collections made within Dickinson County, a...
Authors
S.J. Rushforth, M.B. Edlund, S. A. Spaulding, E. F. Stoermer
Transient electromagnetic mapping of clay units in the San Luis Valley, Colorado Transient electromagnetic mapping of clay units in the San Luis Valley, Colorado
Transient electromagnetic soundings were used to obtain information needed to refine hydrologic models of the San Luis Valley, Colorado. The soundings were able to map an aquitard called the blue clay that separates an unconfined surface aquifer from a deeper confined aquifer. The blue clay forms a conductor with an average resistivity of 6.9 ohm‐m. Above the conductor are found a...
Authors
David V. Fitterman, V. J. S. Grauch
Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA
An extensive continuous waterborne electrical imaging (CWEI) survey was conducted along the Columbia River corridor adjacent to the U.S. Department of Energy (DOE) Hanford 300 Area, WA, in order to improve the conceptual model for exchange between surface water and U‐contaminated groundwater. The primary objective was to determine spatial variability in the depth to the Hanford‐Ringold...
Authors
Lee Slater, Dimitrios Ntarlagiannis, Frederick D. Day-Lewis, Kisa Mwakanyamale, John W. Lane, Andy Ward, Roelof J. Versteeg
Using airborne geophysical surveys to improve groundwater resource management models 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...
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 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...
Authors
Erich H. Peitzsch, Daniel B. Fagre, Mark Dundas
Water-level conditions in selected confined aquifers of the New Jersey and Delaware Coastal Plain 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 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 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...
Authors
Dorothy M. Peteet, John Rayburn, Kirsten M. Menking, Guy Robinson, Byron D. Stone