Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Mineral Resource of the Month: Iodine
Iodine is a bluish-black lustrous solid (violet-colored in its gaseous state) found primarily in seaweed, underground brines associated with petroleum deposits and caliche ore deposits.
Authors
Emily Schnebele
On the reconstruction of palaeo-ice sheets: Recent advances and future challenges
Reconstructing the growth and decay of palaeo-ice sheets is critical to understanding mechanisms of global climate change and associated sea-level fluctuations in the past, present and future. The significance of palaeo-ice sheets is further underlined by the broad range of disciplines concerned with reconstructing their behaviour, many of which have undergone a rapid expansion since the 1980s. In
Authors
Chris R. Stokes, Lev Tarasov, Robin Blomdin, Thomas M. Cronin, Timothy G. Fisher, Richard Gyllencreutz, Clas Hattestrand, Jakob Heyman, Richard C. A. Hindmarsh, Anna L. C. Hughes, Martin Jakobsson, Nina Kirchner, Stephen J. Livingstone, Martin Margold, Julian B. Murton, Riko Noormets, W. Richard Peltier, Dorothy M. Peteet, David J. W. Piper, Frank Preusser, Hans Renssen, David H. Roberts, Didier M. Roche, Francky Saint-Ange, Arjen P. Stroeven, James T. Teller
Preface to the special issue on gas hydrate drilling in the Eastern Nankai Trough
Methane hydrate traps enormous amounts of methane in frozen deposits in continental margin sediments, and these deposits have long been targeted for studies investigating their potential as an energy resource. As a concentrated form of methane that occurs at shallower depths than conventional and most unconventional gas reservoirs, methane hydrates could be a readily accessible source of hydrocarb
Authors
Koji Yamamoto, Carolyn D. Ruppel
Localization and seasonal variation of blue pigment (sandercyanin) in walleye (Sander vitreus)
Several fish species, including the walleye (Sander vitreus), have “yellow” and “blue” color morphs. In S. vitreus, one source of the blue color has been identified as a bili-binding protein pigment (sandercyanin), found in surface mucus of the fish. Little is known about the production of the pigment or about its functions. We examined the anatomical localization and seasonal variation of sanderc
Authors
Wayne Schaefer, Mark Schmitz, Vicki S. Blazer, Tim Ehlinger, John Berges
Suburban watershed nitrogen retention: Estimating the effectiveness of stormwater management structures
Excess nitrogen (N) is a primary driver of freshwater and coastal eutrophication globally, and urban stormwater is a rapidly growing source of N pollution. Stormwater best management practices (BMPs) are used widely to remove excess N from runoff in urban and suburban areas, and are expected to perform under a wide variety of environmental conditions. Yet the capacity of BMPs to retain excess N va
Authors
Benjamin J. Koch, Catherine M. Febria, Roger M. Cooke, Jacob D. Hosen, Matthew E. Baker, Abigail R. Colson, Solange Filoso, Katharine Hayhoe, J. V. Loperfido, Anne M.K. Stoner, Margaret A. Palmer
Geochemical legacies and the future health of cities: A tale of two neurotoxins in urban soils
The past and future of cities are inextricably linked, a linkage that can be seen clearly in the long-term impacts of urban geochemical legacies. As loci of population as well as the means of employment and industry to support these populations, cities have a long history of co-locating contaminating practices and people, sometimes with negative implications for human health. Working at the inters
Authors
Gabriel M. Fillipelli, Martin R. Risch, Mark A. S. Laidlaw, Deborah E. Nichols, Julie Crewe
Fluvial geomorphology and suspended-sediment transport during construction of the Roanoke River Flood Reduction Project in Roanoke, Virginia, 2005–2012
Beginning in 2005, after decades of planning, the U.S. Army Corps of Engineers (USACE) undertook a major construction effort to reduce the effects of flooding on the city of Roanoke, Virginia—the Roanoke River Flood Reduction Project (RRFRP). Prompted by concerns about the potential for RRFRP construction-induced geomorphological instability and sediment liberation and the detrimental effects thes
Authors
John D. Jastram, Jennifer L. Krstolic, Douglas Moyer, Kenneth Hyer
Effects of Hydrocarbon Extraction on Landscapes of the Appalachian Basin
An important and sometimes overlooked aspect of contemporary natural gas exploration, development, and delivery activities is the geographic profile and spatial footprint that these activities have on the land surface. The function of many ecosystems and the goods and services they provide, in large part, are the result of their natural spatial arrangement on the landscape. Shale-gas development c
Authors
Terry E. Slonecker, Lesley E. Milheim, Coral M. Roig-Silva, Siddiq S. Kalaly
A new method for discovering behavior patterns among animal movements
Advanced satellite tracking technologies enable biologists to track animal movements at fine spatial and temporal scales. The resultant data present opportunities and challenges for understanding animal behavioral mechanisms. In this paper, we develop a new method to elucidate animal movement patterns from tracking data. Here, we propose the notion of continuous behavior patterns as a concise repr
Authors
Y. Wang, Ze Luo, John Y. Takekawa, Diann J. Prosser, Y. Xiong, S. Newman, X. Xiao, N. Batbayar, Kyle A. Spragens, S. Balachandran, B. Yan
Seasonal temperature and precipitation regulate brook trout young-of-the-year abundance and population dynamics
Abundance of the young‐of‐the‐year (YOY) fish can vary greatly among years and it may be driven by several key biological processes (i.e. adult spawning, egg survival and fry survival) that span several months. However, the relative influence of seasonal weather patterns on YOY abundance is poorly understood.We assessed the importance of seasonal air temperature (a surrogate for stream temperature
Authors
Yoichiro Kanno, Kasey C. Pregler, Nathaniel P. Hitt, Benjamin Letcher, Daniel Hocking, John E. B. Wofford
Flood-inundation maps for the Tippecanoe River at Winamac, Indiana
Digital flood-inundation maps for a 6.2 mile reach of the Tippecanoe River at Winamac, Indiana (Ind.), were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Office of Community and Rural Affairs. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of
Authors
Chad D. Menke, Aubrey R. Bunch
Measurement of in situ sulfur isotopes by laser ablation multi-collector ICPMS: opening Pandora’s Box
Laser ablation multi-collector ICPMS is a modern tool for in situ measurement of S isotopes. Advantages of the technique are speed of analysis and relatively minor matrix effects combined with spatial resolution sufficient for many applications. The main disadvantage is a more destructive sampling mechanism relative to the ion microprobe technique. Recent advances in instrumentation allow precise
Authors
William I. Ridley, Michael Pribil, Alan E. Koenig, John F. Slack