State of the art and progress in the earthquake early warning system in Taiwan
Y. Wu, Nai-Chi Hsiao, W.H.K. Lee, Ta-Liang Teng, Tzay-Chyn Shin
2007, Book chapter, Earthquake early warning systems
We report here the recent progress and future development of real-time seismic monitoring in Taiwan, especially on earthquake early warning system (EWS) developed at the Central Weather Bureau (CWB), using the telemetered signals from strong-motion instruments. Utilizing a quick magnitude determination based on the first 10 sec of signals...
Physiological Ecology and Ecohydrology of Coastal Forested Wetlands
Ken W. Krauss
2007, Fact Sheet 2007-3018
The form, function, and productivity of wetland communities are influenced strongly by the hydrologic regime of an area. Wetland ecosystems persist by depending upon surpluses of rainfall, evapotranspiration, soil moisture, and frequency and amplitude of water-level fluctuations. Yet, wetland vegetation can also influence ecosystem water economy through conservative water- and...
The role of aeolian sediment in the preservation of archaeological sites in the Colorado River corridor, Grand Canyon, Arizona: Final report on research activities, 2003-2006
Amy E. Draut, David M. Rubin
2007, Open-File Report 2007-1001
This report summarizes a three-year study of aeolian sedimentary processes in the Colorado River corridor, Grand Canyon, Arizona, and discusses the relevance of those processes to the preservation of archaeological sites. Findings are based upon detailed sedimentary and geomorphic investigations conducted in three areas of the river corridor, continuous measurements...
Hydrologic Data Summary for the Northeast Creek/Fresh Meadow Estuary, Acadia National Park, Maine, 2000-2001
James M. Caldwell, Charles W. Culbertson
2007, Open-File Report 2007-1035
The U.S. Geological Survey, in cooperation with the National Park Service, collected data in Northeast Creek estuary, Mt. Desert Island, Maine, to establish baseline water-quality conditions including estuarine nutrient concentrations. Five sampling sites in Northeast Creek were established and monitored continuously for temperature and specific conductance during May to November,...
Hydraulic survey and scour assessment of Bridge 524, Tanana River at Big Delta, Alaska
Thomas A. Heinrichs, Dustin E. Langley, Robert L. Burrows, Jeffrey S. Conaway
2007, Scientific Investigations Report 2006-5282
Bathymetric and hydraulic data were collected August 26–28, 1996, on the Tanana River at Big Delta, Alaska, at the Richardson Highway bridge and Trans-Alaska Pipeline crossing. Erosion along the right (north) bank of the river between the bridge and the pipeline crossing prompted the data collection. A water-surface profile hydraulic model...
Modal Composition and Age of Intrusions in North-Central and Northeast Nevada
Edward A. du Bray, A. Elizabeth Jones Crafford
2007, Data Series 250
Introduction Data presented in this report characterize igneous intrusions of north-central and northeast Nevada and were compiled as part of the Metallogeny of the Great Basin project conducted by the U.S. Geological Survey (USGS) between 2001 and 2007. The compilation pertains to the area bounded by lats 38.5 and 42 N.,...
Regional geochemical results from the reanalysis of NURE stream sediment samples -- Eagle 3 degree quadrangle, east-central Alaska
J.G. Crock, Paul H. Briggs, L. P. Gough, R. B. Wanty, Z. A. Brown
2007, Open-File Report 2007-1075
This report presents reconnaissance geochemical data for a cooperative study in the Fortymile Mining District, east-central Alaska, initiated in 1997. This study has been funded by the U.S. Geological Survey (USGS) Mineral Resources Program. Cooperative funds were provided from various State of Alaska sources through the Alaska Department of Natural...
Alaska Science Center: Providing Timely, Relevant, and Impartial Study of the Landscape, Natural Resources, and Natural Hazards for Alaska and Our Nation
USGS Alaska Science Center
2007, Fact Sheet 2007-3019
The U.S. Geological Survey (USGS), the Nation's largest water, earth, and biological science and civilian mapping agency, has studied the natural features of Alaska since its earliest geologic expeditions in the 1800s. The USGS Alaska Science Center (ASC), with headquarters in Anchorage, Alaska, studies the complex natural science phenomena of...
A Precipitation-Runoff Model for the Blackstone River Basin, Massachusetts and Rhode Island
Jeffrey R. Barbaro, Phillip J. Zarriello
2007, Scientific Investigations Report 2006-5213
A Hydrological Simulation Program-FORTRAN (HSPF) precipitation-runoff model of the Blackstone River Basin was developed and calibrated to study the effects of changing land- and water-use patterns on water resources. The 474.5 mi2 Blackstone River Basin in southeastern Massachusetts and northern Rhode Island is experiencing rapid population and commercial growth throughout...
A Spatial Landscape Model of Forest Patch Dynamics and Climate Change
Richard T. Busing
2007, Scientific Investigations Report 2007-5040
FOREL (a FOREst Landscape model) is an individual-based, multi-scale simulator of forest and climate dynamics. Rationale and design of the model are presented in relation to other forest patch models. Information on implementation of the model is also provided. Capabilities of the FOREL model are demonstrated for forest composition, structure...
Ground-Water Nutrient Flux to Coastal Waters and Numerical Simulation of Wastewater Injection at Kihei, Maui, Hawaii
Charles D. Hunt Jr.
2007, Scientific Investigations Report 2006-5283
Water sampling and numerical modeling were used to estimate ground-water nutrient fluxes in the Kihei area of Maui, where growth of macroalgae (seaweed) on coral reefs raises ecologic concerns and accumulation on beaches has caused odor and removal problems. Fluxes and model results are highly approximate, first-order estimates because very...
Archive of digital CHIRP seismic reflection data collected during USGS cruise 06FSH01 offshore of Siesta Key, Florida, May 2006
Arnell S. Harrison, Shawn V. Dadisman, James G. Flocks, Dana S. Wiese, Lisa L. Robbins
2007, Data Series 254
In May of 2006, the U.S. Geological Survey conducted geophysical surveys offshore of Siesta Key, Florida. This report serves as an archive of unprocessed digital chirp seismic reflection data, trackline maps, navigation files, GIS information, Field Activity Collection System (FACS) logs, observer's logbook, and formal FGDC metadata. Gained digital images...
10th Anniversary of the 1997 Red River Flood
K.R. Ryberg, K. M. Macek-Rowland, G.J. Wiche, L.A. Klapprodt
2007, General Information Product 49
The 1997 flood on the Red River was one of the worst natural disasters in recent history for many people and communities in the Red River of the North Basin. The U.S. Geological Survey (USGS), one of the principal Federal agencies responsible for the collection and interpretation of water-resources data,...
Observations of chlorine monoxide over Scott Base, Antarctica, during the ozone hole, 1996-2005
Brian Connor, Philip Solomon, James Barrett, Thomas Mooney, Alan Parrish
2007, Open-File Report 2007-1047-SRP-077
We report observations of chlorine monoxide, ClO, in the lower stratosphere, made from Scott Base (77.85º S, 166.77º E) in springtime during each year, 1996-2005. The ClO amounts in the atmosphere are retrieved from remote measurements of microwave emission spectra. ClO column densities of up to about 2.5 × 1015...
Elongate summit calderas as Neogene paleostress indicators in Antarctica
T.S. Paulsen, T. J. Wilson
2007, Open-File Report 2007-1047-SRP-072
The orientations and ages of elongate summit calderas on major polygenetic volcanoes were compiled to document Miocene to Pleistocene Sh (minimum horizontal stress) directions on the western and northern flanks of the West Antarctic rift system. Miocene to Pleistocene summit calderas along the western Ross Sea show relatively consistent ENE...
Hawaiian Volcano Observatory Seismic Data, January to December 2006
Jennifer Nakata
2007, Open-File Report 2007-1073
Introduction The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that most data for events of M>1.5 routinely gathered by the Observatory are included. The HVO summaries have...
Modeling Hydrodynamics, Water Temperature, and Suspended Sediment in Detroit Lake, Oregon
Annett B. Sullivan, Stewart A. Rounds, Steven Sobieszczyk, Heather M. Bragg
2007, Scientific Investigations Report 2007-5008
Detroit Lake is a large reservoir on the North Santiam River in west-central Oregon. Water temperature and suspended sediment are issues of concern in the river downstream of the reservoir. A CE-QUAL-W2 model was constructed to simulate hydrodynamics, water temperature, total dissolved solids, and suspended sediment in Detroit Lake. The...
Research Furthers Conservation of Grand Canyon Sandbars
Theodore S. Melis, David J. Topping, David M. Rubin, Scott Wright
2007, Fact Sheet 2007-3020
Grand Canyon National Park lies approximately 25 km (15 mi) down-river from Glen Canyon Dam, which was built on the Colorado River just south of the Arizona-Utah border in Glen Canyon National Recreation Area. Before the dam began to regulate the Colorado River in 1963, the river carried such large...
Estimation of Sediment Sources Using Selected Chemical Tracers in the Perry Lake and Lake Wabaunsee Basins, Northeast Kansas
Kyle E. Juracek, Andrew C. Ziegler
2007, Scientific Investigations Report 2007-5020
In Kansas and nationally, stream and lake sediment is a primary concern as related to several important issues including water quality and reservoir water-storage capacity. The ability to achieve meaningful decreases in sediment loads to reservoirs requires a determination of the relative importance of sediment sources within the contributing basins....
Evaluation of tandem offline and online solid-phase extraction with liquid chromatography/electrospray ionization-mass spectrometry for the analysis of antibiotics in ambient water and comparision to an independent method
M. T. Meyer, E.A. Lee, G.M. Ferrell, J.E. Bumgarner, Jerry Varns
2007, Scientific Investigations Report 2007-5021
This report describes the performance of an offline tandem solid-phase extraction (SPE) method and an online SPE method that use liquid chromatography/mass spectrometry for the analysis of 23 and 35 antibiotics, respectively, as used in several water-quality surveys conducted since 1999. In the offline tandem SPE method, normalized concentrations for...
Geologic resource evaluation of Pu‘ukoholā Heiau National Historic Site, Hawai‘i, part II: Benthic habitat mapping
Susan A. Cochran, Ann E. Gibbs, Joshua B. Logan
2007, Scientific Investigations Report 2006-5254
In cooperation with the U.S. National Park Service (NPS), the U.S. Geological Survey (USGS) has mapped the underwater environment in and adjacent to three parks along the Kona coast on the island of Hawai‘i. This report is the second of two produced for the NPS on the geologic resource evaluation...
Mountain Lions of the Flagstaff Uplands: 2003-2006 Progress Report
David J. Mattson
2007, Open-File Report 2007-1062
Executive Summary Stakeholders in management of mountain lions in the Flagstaff Uplands of northern Arizona have expressed increasing concern about both potential impacts of humans on lions and potential risks posed by lions to humans. A series of human-mountain lion encounters during 2000-2001 on Mt. Elden, immediately adjacent to Flagstaff, and...
Dichloroethene and vinyl chloride degradation potential in wetland sediments at Twin Lakes and Pen Branch, Savannah River National Laboratory, South Carolina
Paul M. Bradley
2007, Open-File Report 2007-1028
A series of 14C-radiotracer-based microcosm experiments was conducted to assess the mechanisms and products of degradation of dichloroethene (DCE) and vinyl chloride (VC) in wetland sediments at the Department of Energy (DOE) Savannah River National Laboratory. This project investigated the potential for biotic and abiotic DCE and VC degradation in...
Ground-Water Conditions and Studies in Georgia, 2004-2005
David C. Leeth, Michael F. Peck, Jaime A. Painter
2007, Scientific Investigations Report 2007-5017
The U.S. Geological Survey (USGS) collects ground-water data and conducts studies to monitor hydrologic conditions, better define ground-water resources, and address problems related to water supply, water use, and water quality. During 2004-2005, ground-water levels were monitored continuously in a network of 183 wells completed in major aquifers throughout the...
Relation of Chlorofluorocarbon Ground-Water Age Dates to Water Quality in Aquifers of West Virginia
McCoy, J. Kurt, Mark D. Kozar
2007, Scientific Investigations Report 2006-5221
The average apparent age of ground water in fractured-bedrock aquifers in West Virginia was determined using chlorofluorocarbon (CFC) dating methods. Since the introduction of CFC gases as refrigerants in the late 1930s, atmospheric concentrations have increased until production ceased in the mid-1990s. CFC dating methods are based on production records...
