Can we dismiss the effect of changes in land‐based water storage on sea‐level rise?
Thomas G. Huntington
2008, Hydrological Processes (22) 717-723
The rate of global mean sea-level rise (SLR) during the 20th century is estimated to be 1.7 mm yr−1 ±0.3 yr−1 (Church and White, 2006). SLR during the 20th century was a result of thermal expansion of the oceans and the release of water from terrestrial storage reservoirs (Bindoff et al., 2007)....
Magmatic and tectonic evolution of the Caetano caldera, north-central Nevada: A tilted, mid-Tertiary eruptive center and source of the Caetano Tuff
David A. John, Christopher D. Henry, Joseph P. Colgan
2008, Geosphere (4) 75-106
The Caetano Tuff is a late Eocene, rhyolite ash-flow tuff that crops out within an ∼90-km-long, east-west–trending belt in north-central Nevada, previously interpreted as an elongate graben or “volcano-tectonic trough.” New field, petrographic, geochemical, and geochronologic data show that: (1) the east half of the “trough” is actually the Caetano...
A prominent geophysical feature along the northern Nevada rift and its geologic implications, north-central Nevada
David A. Ponce, Jonathan M.G. Glen
2008, Geosphere (4) 207-217
We consider the origin and character of a prominent large-scale geophysical feature in north-central Nevada that is coincident with the western margin of the northern Nevada rift—a mid-Miocene rift that includes mafic dike swarms and associated volcanic rocks expressed by a NNW-striking magnetic anomaly. The geophysical feature also correlates with...
Principal hydrologic responses to climatic and geologic variability in the Sierra Nevada, California
David H. Peterson, Iris Stewart, Fred Murphy
2008, San Francisco Estuary and Watershed Science 1-21
Sierra Nevada snowpack is a critical water source for California’s growing population and agricultural industry. However, because mountain winters and springs are warming, on average, precipitation as snowfall relative to rain is decreasing, and snowmelt is earlier. The changes are stronger at mid-elevations than at higher elevations. The result is...
Large-magnitude Miocene extension of the Eocene Caetano caldera, Shoshone and Toiyabe Ranges, Nevada
Joseph P. Colgan, David A. John, Christopher D. Henry, Robert J. Fleck
2008, Geosphere (4) 107-130
Because major mineral deposits in north-central Nevada predate significant Basin and Range extension, a detailed understanding of the timing and kinematics of extensional faulting is necessary to place these deposits in their original structural context. The complexity of pre-Cenozoic deformation in northern Nevada makes restoring Basin and Range faulting difficult...
Persistent near-bottom aggregations of mesopelagic animals along the North Carolina and Virginia continental slopes
John V. Gartner Jr., Kenneth J. Sulak, Steve W. Ross, Ann Marie Necaise
2008, Marine Biology (153) 825-841
Submersible observations during four missions over the North Carolina and Virginia continental slopes (184–900 m) documented the occurrence of large aggregations of mesopelagic fishes and macronektonic invertebrates near or on the bottom. Aggregated mesopelagics formed a layer up to tens of meters deep positioned from a few centimeters to 20 m, usually...
Modeling landscape evapotranspiration by integrating land surface phenology and a water balance algorithm
Gabriel B. Senay
2008, Algorithms (1) 52-68
The main objective of this study is to present an improved modeling technique called Vegetation ET (VegET) that integrates commonly used water balance algorithms with remotely sensed Land Surface Phenology (LSP) parameter to conduct operational vegetation water balance modeling of rainfed systems at the LSP’s spatial scale using readily available...
Food security under climate change
Molly E. Brown, Christopher C. Funk
2008, Science (319) 580-581
Food insecurity is likely to increase under climate change, unless early warning systems and development programs are used more effectively....
Integrating modelling and remote sensing to identify ecosystem performance anomalies in the boreal forest, Yukon River Basin, Alaska
B.K. Wylie, L. Zhang, Norman B. Bliss, Lei Ji, Larry L. Tieszen, W. M. Jolly
2008, International Journal of Digital Earth (1) 196-220
High-latitude ecosystems are exposed to more pronounced warming effects than other parts of the globe. We develop a technique to monitor ecological changes in a way that distinguishes climate influences from disturbances. In this study, we account for climatic influences on Alaskan boreal forest performance with a data-driven model. We...
2005 volcanic activity in Alaska, Kamchatka, and the Kurile Islands: Summary of events and response of the Alaska Volcano Observatory
R. G. McGimsey, C.A. Neal, J. P. Dixon, Sergey Ushakov
2008, Scientific Investigations Report 2007-5269
The Alaska Volcano Observatory (AVO) responded to eruptive activity or suspected volcanic activity at or near 16 volcanoes in Alaska during 2005, including the high profile precursory activity associated with the 2005–06 eruption of Augustine Volcano. AVO continues to participate in distributing information about eruptive activity on the Kamchatka Peninsula,...
Abundance Trends and Status of the Little Colorado River Population of Humpback Chub: An Update Considering 1989-2006 Data
Coggins Jr.
2008, Open-File Report 2007-1402
EXECUTIVE SUMMARY In 1967, the humpback chub (Gila cypha) (HBC) was added to the federal list of endangered species and is today protected under the Endangered Species Act of 1973. Only six populations of humpback chub are currently known to exist, five in the Colorado River Basin above Lees Ferry, Arizona,...
Maximum spectral demands in the near-fault region
Yin-Nan Huang, Andrew S. Whittaker, Nicolas Luco
2008, Earthquake Spectra (24) 319-341
The Next Generation Attenuation (NGA) relationships for shallow crustal earthquakes in the western United States predict a rotated geometric mean of horizontal spectral demand, termed GMRotI50, and not maximum spectral demand. Differences between strike-normal, strike-parallel, geometric-mean, and maximum spectral demands in the near-fault region are...
Molecular epidemiology of eastern equine encephalitis Virus, New York
David S. Young, Laura D. Kramer, Joseph G. Maffei, Robert J. Dusek, P. Bryon Backenson, Christopher N. Mores, Kristen A. Bernard, Gregory D. Ebel
2008, Emerging Infectious Diseases (14) 454-460
Perpetuation, overwintering, and extinction of eastern equine encephalitis virus (EEEV) in northern foci are poorly understood. We therefore sought to describe the molecular epidemiology of EEEV in New York State during current and past epizootics. To determine whether EEEV overwinters, is periodically reintroduced, or both, we sequenced the E2 and...
Ground-water quality data in the Southern Sacramento Valley, California, 2005 — Results from the California GAMA Program
Barbara J. Milby Dawson, George L. Bennett V, Kenneth Belitz
2008, Data Series 285
Ground-water quality in the approximately 2,100 square-mile Southern Sacramento Valley study unit (SSACV) was investigated from March to June 2005 as part of the Statewide Basin Assessment Project of Ground-Water Ambient Monitoring and Assessment (GAMA) Program. This study was designed to provide a spatially unbiased assessment of raw ground-water...
Palaeoclimate
Eystein Jansen, Jonathan Overpeck, Keith R. Briffa, Jean-Claude Duplessy, Fortunat Joos, Valerie Masson-Delmotte, Daniel Olago, Bette Otto-Bliesner, W. Richard Peltier, Stefan Rahmstorf, Rengaswamy Ramesh, Dominique Raynaud, David Rind, Olga Solomina, Ricardo Villalba, De’er Zhang, Jean-Marc Barnola, Eva M. Bauer, Esther Brady, Mark Chandler, Julia E. Cole, Edward R. Cook, Esla Cortijo, Trond Dokken, Dominik Fleitmann, Masa Kageyama, Myriam Khodri, Laurent Labeyrie, Alexander Laine, Anders Levermann, E. Mosley-Thompson, Daniel R. Muhs, Raimund Muscheler, Tim Osborn, Oyvind Paasche, Frederic Parrenin, Gian-Kasper Plattner, Henry Pollack, Renato Spahni, Lowell D. Stott, Lonnie Thompson, Claire Waelbroeck, Gregory Wiles, James Zachos, Zhangteng Guo
Susan Solomon, D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor, H. L. Miller, editor(s)
2008, Book chapter, Climate change 2007: The physical science basis
This chapter assesses palaeoclimatic data and knowledge of how the climate system changes over interannual to millennial time scales, and how well these variations can be simulated with climate models. Additional palaeoclimatic perspectives are included in other chapters. Palaeoclimate science has made significant advances since the 1970s, when a primary...
Qualitative Comparison of Streamflow Information Programs of the U.S. Geological Survey and Three Non-Federal Agencies
J. Michael Norris, Michael Lewis, Michael Dorsey, Robert Kimbrough, Robert R. Holmes Jr., Ward Staubitz
2008, Open-File Report 2007-1426
A qualitative comparison was made of the streamgaging programs of the U.S. Geological Survey (USGS) and three non-Federal agencies in terms of approximate costs and streamflow-information products produced. The three non-Federal agencies provided the USGS with detailed information on their streamgaging program and related costs, and the USGS explored, through...
Neogene exhumation of the Tordrillo Mountains, Alaska, and correlations with Denali (Mount McKinley)
Peter J. Haeussler, Paul J O’Sullivan, Aaron L Berger, James A Spotila
Jeffery T. Freymueller, Peter J. Haeussler, Robert L. Wesson, Goran Ekstrom, editor(s)
2008, Book chapter, Active tectonics and seismic potential of Alaska, volume 179
No abstract available....
Assessment of Water-Quality Conditions in Fivemile Creek in the Vicinity of the Fivemile Creek Greenway, Jefferson County, Alabama, 2003-2005
Amy C. Gill, John A. Robinson, Jymalyn E. Redmond, Mike Bradley
2008, Scientific Investigations Report 2007-5272
The watershed of Fivemile Creek (FMC), a tributary to the Locust Fork of the Black Warrior River, is located north of Birmingham, Alabama. Areas that have been previously coal-mined border the creek, and portions of the upper watershed have been and are currently (2007) being used for industrial and urban...
Carpinteria Coastal Processes Study, 2005-2007: Final report
Patrick L. Barnard, David L. Revell, Jodi L. Eshleman, Neomi Mustain
2008, Open-File Report 2007-1412
The United States Geological Survey (USGS), in collaboration with the University of California, Santa Cruz (UCSC), conducted a two-year study of the beach and nearshore coastal processes for the City of Carpinteria and adjacent beaches. The work was performed in response to and worked directly with the United States Army...
Presentation Showing Results of a Hydrogeochemical Investigation of the Standard Mine Vicinity, Upper Elk Creek Basin, Colorado
Andrew H. Manning, Philip L. Verplanck, M. Alisa Mast, Richard B. Wanty
2008, Open-File Report 2008-1012
PREFACE This Open-File Report consists of a presentation given in Crested Butte, Colorado on December 13, 2007 to the Standard Mine Advisory Group. The presentation was paired with another presentation given by the Colorado Division of Reclamation, Mining, and Safety on the physical features and geology of the Standard Mine. The...
Analysis of a spatial point pattern: Examining the damage to pavement and pipes in Santa Clara Valley resulting from the Loma Prieta earthquake
G. A. Phelps
2008, Open-File Report 2007-1442
This report describes some simple spatial statistical methods to explore the relationships of scattered points to geologic or other features, represented by points, lines, or areas. It also describes statistical methods to search for linear trends and clustered patterns within the scattered point data. Scattered points are often contained within...
Shear wave structure of Umbria and Marche, Italy, strong motion seismometer sites Affected by the 1997-98 Umbria-Marche, Italy, earthquake sequence
Robert Kayen, Giuseppe Scasserra, Jonathan P. Stewart, Giuseppe Lanzo
2008, Open-File Report 2008-1010
A long sequence of earthquakes, eight with magnitudes between 5 and 6, struck the Umbria and Marche regions of central Italy between September 26, 1997 and July 1998. The earthquake swarm caused severe structural damage, particularly to masonry buildings, and resulted in the loss of twelve lives and about 150...
A modified siphon sampler for shallow water
Timothy H. Diehl
2008, Scientific Investigations Report 2007-5282
A modified siphon sampler (or 'single-stage sampler') was developed to sample shallow water at closely spaced vertical intervals. The modified design uses horizontal rather than vertical sample bottles. Previous siphon samplers are limited to water about 20 centimeters (cm) or more in depth; the modified design can sample water 10...
Illinois, Indiana, and Ohio Magnetic and Gravity Maps and Data: A Website for Distribution of Data
David L. Daniels, Robert P. Kucks, Patricia L. Hill
2008, Data Series 321
This web site gives the results of a USGS project to acquire the best available, public-domain, aeromagnetic and gravity data in the United States and merge these data into uniform, composite grids for each state. The results for the three states, Illinois, Indiana, and Ohio are presented here in one...
Volcan Baru: Eruptive History and Volcano-Hazards Assessment
David R. Sherrod, James W. Vallance, Arkin Tapia Espinosa, John P. McGeehin
2008, Open-File Report 2007-1401
Volcan Baru is a potentially active volcano in western Panama, about 35 km east of the Costa Rican border. The volcano has had four eruptive episodes during the past 1,600 years, including its most recent eruption about 400?500 years ago. Several other eruptions occurred in the prior 10,000 years. Several...
