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...
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...
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...
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...
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...
Converting NAD83 GPS Heights Into NAVD88 Elevations With LVGEOID, a Hybrid Geoid Height Model for the Long Valley Volcanic Region, California
Maurizio Battaglia, Daniel Dzurisin, John O. Langbein, Jerry Svarc, David P. Hill
2008, Scientific Investigations Report 2007-5255
A GPS survey of leveling benchmarks done in Long Valley Caldera in 1999 showed that the application of the National Geodetic Survey (NGS) geoid model GEOID99 to tie GPS heights to historical leveling measurements would significantly underestimate the caldera ground deformation (known from other geodetic measurements). The NGS geoid model...
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...
National Land Cover Database 2001 (NLCD01) Tile 2, Northeast United States: NLCD01_2
Andrew LaMotte
2008, Data Series 383-B
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System (see http://water.usgs.gov/GIS/browse/nlcd01-partition.jpg). The National Land Cover Data Set for 2001 was...
National Land Cover Database 2001 (NLCD01) Tile 1, Northwest United States: NLCD01_1
Andrew LaMotte
2008, Data Series 383-A
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System (see http://water.usgs.gov/GIS/browse/nlcd01-partition.jpg). The National Land Cover Data Set for 2001 was...
ET–The key to balancing the water budget in the Southwest
Michael T. Moreo, Nancy A. Damar, Randell J. Laczniak
2008, Southwest Hydrology (7) 28-33
Throughout the Southwest, state and federal water-resource managers are becoming increasingly concerned about the impacts of future groundwater development on the region’s limited water resources, environmentally sensitive ecosystems, and rural lifestyle. To address their concerns, scientists and engineers are deploying physically based mathematical models to assess and predict the potential...
Advances and limitations of individual-based models to analyze and predict dynamics of mangrove forests: A review
Uta Berger, Victor H. Rivera-Monroy, Thomas W. Doyle, Farid Dahdouh-Guebas, N.C. Duke, Martha L. Fontalvo-Herazo, Hanno Hildenbrandt, Nico Koedam, Ulf Mehlig, Cyril Piou, Robert R. Twilley
2008, Aquatic Botany (89) 260-274
Mangrove ecosystems are considered vulnerable to climate change as coastal development limits the ecosystem services and adaptations important to their survival. Although they appear rather simple in terms of species diversity, their ecology is complex due to interacting geophysical forces of tides, surface...
Database for Assessment Unit-Scale Analogs (Exclusive of the United States)
Ronald R. Charpentier, T. R. Klett, Emil Attanasi
2008, Open-File Report 2007-1404
This publication presents a database of geologic analogs useful for the assessment of undiscovered oil and gas resources. Particularly in frontier areas, where few oil and gas fields have been discovered, assessment methods such as discovery process models may not be usable. In such cases, comparison of the assessment area...
Post-Wildfire Hydrologic Hazards in the Wildland Urban Interface of Colorado and the Western United States
M. R. Stevens, C. R. Bossong, M.G. Rupert, A.J. Ranalli, E.W. Cassidy, A.D. Druliner
2008, Fact Sheet 2007-3036
Following a wildfire, such as the 2002 Missionary Ridge fire, a number of hydrologic hazards may develop that can have an important impact on water resources, businesses, homes, reservoirs, roads, and utilities in the wildland urban interface (areas where homes and commercial developments are interspersed with wildlands) in mountainous areas...
Water-Quality Data Collected from Vallecito Reservoir, Its Inflows and Outflow, Southwestern Colorado, 1999-2002
Anthony J. Ranalli
2008, Data Series 305
The Pine River Watershed Stakeholders Group was created in December 1997 to allow local participation in addressing water-quality issues in Los Pi?os River watershed, including Vallecito Reservoir in southwestern Colorado. One water-quality issue identified by the stakeholder group is to increase the understanding of the current water quality of Vallecito...
An Approach to the Classification of Potential Reserve Additions of Giant Oil Fields of the World
T. R. Klett, Marilyn E. Tennyson
2008, Open-File Report 2007-1438
This report contains slides and notes for slides for a presentation given to the Committee on Sustainable Energy and the Ad Hoc Group of Experts on Harmonization of Fossil Energy and Mineral Resources Terminology on 17 October 2007 in Geneva, Switzerland. The presentation describes the U.S. Geological Survey study to...
Magnetotelluric Data, San Luis Valley, Colorado
Brian D. Rodriguez, Jackie M. Williams
2008, Open-File Report 2007-1405
The San Luis Valley region population is growing. Water shortfalls could have serious consequences. Future growth and land management in the region depend on accurate assessment and protection of the region?s ground-water resources. An important issue in managing the ground-water resources is a better understanding of the hydrogeology of the...
Historical and hypothetical future sedimentation and water storage in Kajakai Reservoir, central Afghanistan
Kevin C. Vining, Aldo V. Vecchia
2008, Fact Sheet 2008-3002
Sedimentation has reduced water storage in Kajakai Reservoir. If current sedimentation rates continue, hypothetical future reservoir water volumes at the spillway elevation of 1,033.5 meters could be reduced about 22 percent from 2006 to 2057. Even if the spillway elevation is raised to 1,045 meters, a severe drought could result...
Environmental drivers in mangrove establishment and early development: A review
K. W. Krauss, Catherine E. Lovelock, Karen L. McKee, Laura Lopez Hoffman, M. Ewe, Wayne P. Sousa
2008, Aquatic Botany (89) 105-127
Mangroves have a global distribution within coastal tropical and subtropical climates, and have even expanded to some temperate locales. Where they do occur, mangroves provide a plethora of goods and services, ranging from coastal protection from storms and erosion to direct income for human societies. The mangrove literature has become...
National Land Cover Database 2001 (NLCD01) Tile 4, Southeast United States: NLCD01_4
Andrew LaMotte
2008, Data Series 383-D
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System (see http://water.usgs.gov/GIS/browse/nlcd01-partition.jpg). The National Land Cover Data Set for 2001 was...
Determination of the delta(15N/14N)of Ammonium (NH4+) in Water: RSIL Lab Code 2898
Janet E. Hannon, John Karl Böhlke
2008, Techniques and Methods 10-C15
The purpose of the technique described by Reston Stable Isotope Laboratory (RSIL) lab code 2898 is to determine the N isotopic composition, delta(15N/14N), abbreviated as d15N, of ammonium (NH4+) in water (freshwater and saline water). The procedure involves converting dissolved NH4+ into NH3 gas by raising the pH of the...
Determination of the delta(18O/16O)of Water: RSIL Lab Code 489
Kinga Revesz, Tyler Coplen
2008, Techniques and Methods 10-C2
The purpose of the technique described by the Reston Stable Isotope Laboratory (RSIL) lab code 489 is to present a method to determine the delta(180/160), abbreviated as delta-180, of water. This delta-18O measurement of water also is a component of National Water Quality Laboratory (NWQL in USGS) schedules 1142 and...
Determination of the delta(2H/1H)of Water: RSIL Lab Code 1574
Kinga Revesz, Tyler B. Coplen
2008, Techniques and Methods 10-C1
Reston Stable Isotope Laboratory (RSIL) lab code 1574 describes a method used to determine the relative hydrogen isotope-ratio delta(2H,1H), abbreviated hereafter as d2H of water. The d2H measurement of water also is a component of the National Water Quality Laboratory (NWQL) schedules 1142 and 1172. The water is collected unfiltered...
A slab fragment wedged under Tokyo and its tectonic and seismic implications
Shinji Toda, Ross Stein, Stephen H. Kirby, S.B. Bozkurt
2008, Nature Geoscience (1) 771-776
The Philippine Sea and Pacific plate slabs both subduct beneath Tokyo, and so their configuration and seismic potential have been subject to intensive study<a id="ref-link-section-d21012e400" title="Wu, F., Okaya, D., Sato, H. & Huirata, N. Interaction between two subducting plates under Tokyo and its possible effect on seismic hazards. Geophys. Res....
Late Cenozoic drainage history of the southwestern Great Basin and lower Colorado River region: Geologic and biotic perspectives
Marith C. Reheis, R. Hershler, David M. Miller
2008, Geological Society of America Special Papers (439)
No abstract available....
