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...
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...
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...
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...
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...
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.,...
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...
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...
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...
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...
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....
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...
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...
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...
Flow Velocity and Sediment Data Collected During 1990 and 1991 at National Canyon, Colorado River, Arizona
Nancy J. Hornewer, Stephen M. Wiele
2007, Data Series 246
During 1990 and 1991, a series of research flows were released from Glen Canyon Dam. Data collected at the streamflow-gaging station on the Colorado River above National Canyon near Supai from that period have been compiled and entered into the U.S. Geological Survey database. The data consist of measurements of...
Water- and air-quality monitoring of the Sweetwater Reservoir Watershed, San Diego County, California-Phase One results, continued, 1999-2001
Gregory O. Mendez, William T. Foreman, Jagdeep S. Sidhu, Michael S. Majewski
2007, Data Series 233
In 1998, the U.S. Geological Survey, in cooperation with the Sweetwater Authority, began a study to assess the overall health of the Sweetwater watershed with respect to chemical contamination. The study included regular sampling of air and water at Sweetwater Reservoir for chemical contaminants, including volatile organic compounds, polycyclic aromatic...
Pliocene and Quaternary deposits in the northern part of the San Juan Basin in southwestern Colorado and northwestern New Mexico
Glenn R. Scott, David W. Moore
2007, Scientific Investigations Report 2007-5006
Unconsolidated late Cenozoic deposits in the northern part of the San Juan Basin range in age from late Pliocene to Holocene. Most of the deposits are alluvial gravel composed of resistant quartzite, sandstone, and igneous, metamorphic, and volcanic rocks derived from the uplifted central core of the San Juan Mountains...
Methods used to compute low-flow frequency characteristics for continuous-record streamflow stations in Minnesota, 2006
Thomas A. Winterstein, Allan D. Arntson, Gregory B. Mitton
2007, Open-File Report 2007-1033
The 1-, 7-, and 30-day low-flow series were determined for 120 continuous-record streamflow stations in Minnesota having at least 20 years of continuous record. The 2-, 5-, 10-, 50-, and 100-year statistics were determined for each series by fitting a log Pearson type III distribution to the data. The methods...
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...
Ohio Aquatic Gap Analysis-An Assessment of the Biodiversity and Conservation Status of Native Aquatic Animal Species
S. Alex Covert, Stephanie P. Kula, Laura A. Simonson
2007, Open-File Report 2006-1385
The goal of the GAP Analysis Program is to keep common species common by identifying those species and habitats that are not yet adequately represented in the existing matrix of conservation lands. The Gap Analysis Program (GAP) is sponsored by the Biological Resources Discipline of the U.S. Geological Survey (USGS)....
Characterization of ground-water flow and water quality for the Madison and Minnelusa aquifers in northern Lawrence County, South Dakota
Larry D. Putnam, Andrew J. Long
2007, Scientific Investigations Report 2007-5001
The Madison and Minnelusa aquifers are used extensively for water supplies for the city of Spearfish and other users in northern Lawrence County, South Dakota. Ground water in the Madison and Minnelusa aquifers in the study area generally flows north from outcrop areas where recharge from sinking streams and infiltration...
Publications of the Volcano Hazards Program 2005
Manuel Nathenson
2007, Open-File Report 2007-1064
The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of...
