Permissive tracts for iron oxide copper-gold deposits in Mauritania (phase V, deliverable 78 ): Chapter M1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Gregory Fernette, John D. Horton
2012, Open-File Report 2013-1280-M1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Permissive tracts for algoma-, superior-, and oolitic-type iron deposits in Mauritania (phase V, deliverable 82): Chapter O1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Cliff D. Taylor, John D. Horton
2012, Open-File Report 2013-1280-O1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania (phase V deliverable 88): Chapter R1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
William H. Langer, Eric D. Anderson, John D. Horton
2012, Open-File Report 2013-1280-R1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Permissive tracts for volcanogenic massive sulfide deposits in Mauritania (phase V, deliverable 76): Chapter L1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Cliff D. Taylor, John D. Horton
2012, Open-File Report 2013-1280-L1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Permissive tracts for sediment-hosted lead-zinc-silver deposits in Mauritania (phase V, deliverable 72): Chapter J1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Jeffrey L. Mauk, John D. Horton
2012, Open-File Report 2013-1280-J1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Permissive tracts for sediment-hosted copper deposits in Mauritania (phase V, deliverable 74): Chapter K1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)
Cliff D. Taylor, John D. Horton
2012, Open-File Report 2013-1280-K1
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the...
Physical Climate Forces
S.J. Williams, D. Atkinson, A. R. Byrd, H. Eicken, T. M. Hall, Thomas G. Huntington, Y. Kim, T.R. Knutson, J.P. Kossin, M. Lilly, J. M. Marra, J Obeysekera, A. Parris, J. Ratcliff, T. Ravens, D. Resio, P. Ruggiero, E. Robert Thieler, James G. Titus, T.V. Wamsley
2012, Book chapter, Coastal Impacts, Adaptation and Vulnerability: A Technical Input to the 2012 National Climate Assessment. Cooperative Report to the 2013 National Climate Assessment
Key FindingsThe coasts of the U.S. are home to many large urban centers and important infrastructure such seaports, airports, transportation routes, oil import and refining facilities, power plants, and military bases. All are vulnerable to varying degrees to impacts of global warming such as sea-level rise, storms, and flooding. High Confidence.Physical observations collected...
Social.Water - A crowdsourcing tool for environmental data acquisition
Michael N. Fienen, Christopher Lowry
2012, Computers & Geosciences (49) 164-169
Remote telemetry has a long history of use for collection of environmental measurements. With the rise of mobile phones and SMS text-messaging capacity, many members of the general pubic carry communications equipment in their pockets at all times. Enabling the general public to provide environmental data through text messages has...
Potential climate-induced runoff changes and associated uncertainty in four Pacific Northwest estuaries
Madeline O. Steele, Heejun Chang, Deborah A. Reusser, Cheryl A. Brown, Il-Won Jung
2012, Open-File Report 2012-1274
As part of a larger investigation into potential effects of climate change on estuarine habitats in the Pacific Northwest, we estimated changes in freshwater inputs into four estuaries: Coquille River estuary, South Slough of Coos Bay, and Yaquina Bay in Oregon, and Willapa Bay in Washington. We used the U.S....
State of the Earth’s cryosphere at the beginning of the 21st century: Glaciers, global snow cover, floating ice, and permafrost and periglacial environments
Richard S. Williams Jr., Thomas G. Huntington, Jane G. Ferrigno, Lonnie Thompson, M.B. Dyurgerov, Mark Meier, Bruce Raup, Jeffrey S. Kargel, Dorothy K. Hall, David A. Robinson, Claire L. Parkinson, D. Cavalieri, Martin O Jeffries, K. Morris, Claude R. Duguay, J. A. Heginbottom, Jerry Brown, Ole Humlum, Harald Svensson, Kevin M. Foley
Richard S. Williams Jr., Jane G. Ferrigno, editor(s)
2012, Professional Paper 1386-A
This chapter is the tenth in a series of 11 book-length chapters, collectively referred to as “this volume,” in the series U.S. Geological Survey Professional Paper 1386, Satellite Image Atlas of Glaciers of the World. In the other 10 chapters, each of which concerns a specific glacierized region of Earth,...
A synthesis of aquatic science for management of Lakes Mead and Mohave
Michael R. Rosen, Kent Turner, Steven L. Goodbred, Jennell M. Miller
2012, Circular 1381
Lakes Mead and Mohave, which are the centerpieces of Lake Mead National Recreation Area, provide many significant benefits that have made the modern development of the Southwestern United States possible. Lake Mead is the largest reservoir by volume in the nation and it supplies critical storage of water supplies for...
Hydrology and management of Lakes Mead and Mohave within the Colorado River Basin: Chapter 3 in A synthesis of aquatic science for management of Lakes Mead and Mohave
G. Chris Holdren, Todd Tietjen, Kent Turner, Jennell M. Miller
2012, Circular 1381-3
The Colorado River Basin covers parts of seven States: Colorado, Wyoming, Utah, New Mexico, Nevada, Arizona, and California; at 1,450 mi (2,333.5 km) in length, the Colorado River is the seventh longest river in the United States (fig. 3-1). The Bureau of Reclamation has the responsibility for management of this...
Low-flow frequency and flow duration of selected South Carolina streams in the Saluda, Congaree, and Edisto River basins through March 2009
Toby D. Feaster, Wladmir B. Guimaraes
2012, Open-File Report 2012-1253
Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular...
Quality of surface water in Missouri, water year 2011
Miya N. Barr
2012, Data Series 734
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a series of monitoring stations on streams throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2011 water year (October 1, 2010, through September 30, 2011), data were collected at 75 stations—72...
Hydrologic and sediment data collected from selected basins at the Fort Leonard Wood Military Reservation, Missouri--2010-11
Joseph M. Richards, Paul H. Rydlund Jr., Miya N. Barr
2012, Scientific Investigations Report 2012-5268
Commercial and residential development within a basin often increases the amount of impervious area, which changes the natural hydrologic response to storm events by increasing runoff. Land development and disturbance combined with increased runoff from impervious areas potentially can increase sediment transport. At the Fort Leonard Wood Military Reservation in...
Spring onset variations and trends in the continental United States: past and regional assessment using temperature-based indices
Mark D. Schwartz, Toby R. Ault, Julio L. Betancourt
2012, International Journal of Climatology
Phenological data are simple yet sensitive indicators of climate change impacts on ecosystems, but observations have not been made routinely or extensively enough to evaluate spatial and temporal patterns across most continents, including North America. As an alternative, many studies use weather-based algorithms to simulate specific phenological responses. Spring Indices...
A remote-sensing, GIS-based approach to identify, characterize, and model spawning habitat for fall-run chum salmon in a sub-arctic, glacially fed river
Lisa Wirth, Amanda Rosenberger, Anupma Prakash, Rudiger Gens, F. Joseph Margraf, Toshihide Hamazaki
2012, Transactions of the American Fisheries Society (141) 1349-1363
At northern limits of a species’ distribution, fish habitat requirements are often linked to thermal preferences, and the presence of overwintering habitat. However, logistical challenges and hydrologic processes typical of glacial systems could compromize the identification of these habitats, particularly in large river environments. Our goal was to identify and...
Modeling responses of large-river fish populations to global climate change through downscaling and incorporation of predictive uncertainty
Mark L. Wildhaber, Christopher K. Wikle, Christopher J. Anderson, Kristie J. Franz, Edward H. Moran, Rima Dey
Helmut Mader, Julia Kraml, editor(s)
2012, Conference Paper, 9th International Symposium on Ecohydraulics 2012 Proceedings
Climate change operates over a broad range of spatial and temporal scales. Understanding its effects on ecosystems requires multi-scale models. For understanding effects on fish populations of riverine ecosystems, climate predicted by coarse-resolution Global Climate Models must be downscaled to Regional Climate Models to watersheds to river hydrology...
Luna B. Leopold--pioneer setting the stage for modern hydrology
Randall J. Hunt, Curt Meine
2012, Ground Water (50) 966-970
In 1986, during the first year of graduate school, the lead author was sampling the water from a pitcher pump in front of “The Shack,” the setting of the opening essays in Aldo Leopold's renowned book A Sand County Almanac. The sampling was part of my Master's work that included...
A process-based hierarchical framework for monitoring glaciated alpine headwaters
Anne A. Weekes, Christian E. Torgersen, David R. Montgomery, Andrea Woodward, Susan M. Bolton
2012, Environmental Management (50) 982-997
Recent studies have demonstrated the geomorphic complexity and wide range of hydrologic regimes found in alpine headwater channels that provide complex habitats for aquatic taxa. These geohydrologic elements are fundamental to better understand patterns in species assemblages and indicator taxa and are necessary to aquatic monitoring protocols that aim to...
Physical controls and predictability of stream hyporheic flow evaluated with a multiscale model
Susa H. Stonedahl, Judson W. Harvey, Joel Detty, Antoine Aubeneau, Aaron I. Packman
2012, Water Resources Research (48)
Improved predictions of hyporheic exchange based on easily measured physical variables are needed to improve assessment of solute transport and reaction processes in watersheds. Here we compare physically based model predictions for an Indiana stream with stream tracer results interpreted using the Transient Storage Model (TSM). We parameterized the physically...
A half-million-year record of paleoclimate from the Lake Manix Core, Mojave Desert, California
Marith C. Reheis, Jordon Bright, Steve P. Lund, David M. Miller, Gary Skipp, Robert J. Fleck
2012, Palaeogeography, Palaeoclimatology, Palaeoecology (365-366) 11-37
Pluvial lakes in the southwestern U.S. responded sensitively to past climate through effects on rainfall, runoff, and evaporation. Although most studies agree that pluvial lakes in the southwestern U.S. reached their highest levels coeval with glacial stages, the specific timing of increased effective moisture and lake-level rise is debated, particularly...
Drought drove forest decline and dune building in eastern upper Michigan, USA, as the upper Great Lakes became closed basins
Walter L. Loope, Henry M. Loope, Ronald J. Goble, Timothy G. Fisher, David E. Lytle, Robert J. Legg, Douglas A. Wysocki, Paul R. Hanson, Aaron R. Young
2012, Geology (40) 315-318
Current models of landscape response to Holocene climate change in midcontinent North America largely reconcile Earth orbital and atmospheric climate forcing with pollen-based forest histories on the east and eolian chronologies in Great Plains grasslands on the west. However, thousands of sand dunes spread across 12,000 km2 in eastern upper...
Directional connectivity in hydrology and ecology
Laurel G. Larsen, Jungyill Choi, Martha K. Nungesser, Judson W. Harvey
2012, Ecological Applications (22) 2204-2220
Quantifying hydrologic and ecological connectivity has contributed to understanding transport and dispersal processes and assessing ecosystem degradation or restoration potential. However, there has been little synthesis across disciplines. The growing field of ecohydrology and recent recognition that loss of hydrologic connectivity is leading to a global decline in biodiversity underscore...
Quality of streams in Johnson County, Kansas, 2002--10
Teresa J. Rasmussen, Mandy S. Stone, Barry C. Poulton, Jennifer L. Graham
2012, Scientific Investigations Report 2012-5279
Stream quality in Johnson County, northeastern Kansas, was assessed on the basis of land use, hydrology, stream-water and streambed-sediment chemistry, riparian and in-stream habitat, and periphyton and macroinvertebrate community data collected from 22 sites during 2002 through 2010. Stream conditions at the end of the study period are evaluated and...
