Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia
John F. Piatt, K.J. Kuletz, A.E. Burger, Scott A. Hatch, Vicki L. Friesen, T.P. Birt, Mayumi L. Arimitsu, G.S. Drew, A.M.A. Harding, K.S. Bixler
2007, Open-File Report 2006-1387
The Marbled Murrelet (Brachyramphus marmoratus) is a small, diving seabird inhabiting inshore waters of the Northeastern Pacific Ocean. This species feeds on small, schooling fishes and zooplankton, and nests primarily on the moss-covered branches of large, old-growth conifers, and also, in some parts of its range, on the ground. We...
The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites
Kernell G. Ries III, J. B. With sections by Atkins, P.R. Hummel, Matthew J. Gray, R. Dusenbury, M.E. Jennings, W.H. Kirby, H. C. Riggs, V.B. Sauer, W.O. Thomas Jr.
2007, Techniques and Methods 4-A6
The National Streamflow Statistics (NSS) Program is a computer program that should be useful to engineers, hydrologists, and others for planning, management, and design applications. NSS compiles all current U.S. Geological Survey (USGS) regional regression equations for estimating streamflow statistics at ungaged sites in an easy-to-use interface that operates on...
High-resolution airborne gravity imaging over James Ross Island (West Antarctica)
T.A. Jordan, Fausto Ferraccioli, P.C. Jones, J.L. Smellie, M. Ghidella, H. F. J. Corr, A.F. Zakrajsek
2007, Open-File Report 2007-1047-SRP-060
James Ross Island (JRI) exposes a Miocene-Recent alkaline basaltic volcanic complex that developed in a back-arc, east of the northern Antarctic Peninsula. JRI has been the focus of several geological studies because it provides a window on Neogene magmatic processes and paleoenvironments. However, little is known about its internal structure....
Main Andean sinistral shear along the Cooper Bay Dislocation Zone, South Georgia?
M.L. Curtis
2007, Open-File Report 2007-1047-SRP-034
The Cooper Bay Dislocation Zone (CBDZ) represents a major NW-SE trending tectonic boundary within the island of South Georgia that juxtaposes components of a Middle Jurassic to mid-Cretaceous island-arc and back-arc- basin system. New detailed structural data from the southern end of the dislocation zone reveal that earliest displacement along the boundary appears...
The FORE-SCE model: a practical approach for projecting land cover change using scenario-based modeling
Terry L. Sohl, Kristi L. Sayler, Mark A. Drummond, Thomas R. Loveland
2007, Journal of Land Use Science (2) 103-126
A wide variety of ecological applications require spatially explicit, historic, current, and projected land use and land cover data. The U.S. Land Cover Trends project is analyzing contemporary (1973–2000) land-cover change in the conterminous United States. The newly developed FORE-SCE model used Land Cover Trends data and theoretical, statistical, and...
Geometric correction and digital elevation extraction using multiple MTI datasets
Jeffrey A. Mercier, Robert A. Schowengerdt, James C. Storey, Jody L. Smith
2007, Photogrammetric Engineering and Remote Sensing (73) 133-142
Digital Elevation Models (DEMs) are traditionally acquired from a stereo pair of aerial photographs sequentially captured by an airborne metric camera. Standard DEM extraction techniques can be naturally extended to satellite imagery, but the particular characteristics of satellite imaging can cause difficulties. The spacecraft ephemeris with respect to the ground...
Model calibration and issues related to validation, sensitivity analysis, post-audit, uncertainty evaluation and assessment of prediction data needs
Claire R. Tiedeman, Mary C. Hill
2007, Book chapter, Groundwater: Resource Evaluation, Augmentation, Contamination, Restoration, Modeling and Management
When simulating natural and engineered groundwater flow and transport systems, one objective is to produce a model that accurately represents important aspects of the true system. However, using direct measurements of system characteristics, such as hydraulic conductivity, to construct a model often produces simulated values that poorly match observations of...
Regional Water-Resources Studies in Nevada
Eva M. Bauer, Shannon C. Watermolen
2007, Fact Sheet 2007-3006
Introduction: Water-resources information for the State of Nevada should be readily accessible to community planners and the general public in a user-friendly web environment and should be actively managed and maintained with accurate historic and current hydrologic data. The USGS, in cooperation with State of Nevada and local government agencies,...
Summary of Survival Data from Juvenile Coho Salmon in the Klamath River, Northern California, 2006
John W. Beeman
2007, Open-File Report 2007-1023
Little is known about the survival of ESA-listed juvenile coho salmon during their seaward migration in the lower Klamath River. In 2006, the Bureau of Reclamation funded a study to estimate the survival of radio-tagged juvenile coho salmon in the Klamath River downstream of Iron Gate Dam. A series of...
3D Visualization of Earthquake Focal Mechanisms Using ArcScene
Keith A. Labay, Peter J. Haeussler
2007, Data Series 241
We created a new tool, 3D Focal Mechanisms (3DFM), for viewing earthquake focal mechanism symbols three dimensionally. This tool operates within the Environmental Systems Research Institute (ESRI®) GIS software ArcScene® 9.x. The program requires as input a GIS point dataset of earthquake locations containing strike, dip, and rake values for...
Zircon U-Pb Ages from an Ultra-High Temperature Metapelite, Rauer Group, East Antarctica: Implications for Overprints by Grenvillian and Pan-African Events
Yanbin Wang, Laixi Tong, Dunyi Liu
2007, Open-File Report 2007-1047-SRP-023
SHRIMP U-Pb dating of zircon from an ultra-high temperature (UHT, ~1000 °C) granulite-facies metapelite from the Rauer Group, Mather Peninsula, east Antarctica, has yielded evidence for two episodes of metamorphic zircon growth, at ~1.00 Ga and ~530 Ma, and two episodes of magmatism in the source region for the protolith...
U.S. Geological Survey Georgia Water Science Center and City of Brunswick–Glynn County Cooperative Water Program— Summary of activities, July 2005 through June 2006
Gregory S. Cherry
2007, Open-File Report 2006-1368
Since 1959, the U.S. Geological Survey has conducted a cooperative water resources program (CWP) with the City of Brunswick and Glynn County in the Brunswick, Georgia, area. Since the late 1950s, the salinity of ground water in the Upper Floridan aquifer near downtown Brunswick, Georgia, has been increasing, and its...
Geostatistical Modeling of Sediment Abundance in a Heterogeneous Basalt Aquifer at the Idaho National Laboratory, Idaho
John A. Welhan, Renee L. Farabaugh, Melissa J. Merrick, Steven R. Anderson
2007, Scientific Investigations Report 2006-5316
The spatial distribution of sediment in the eastern Snake River Plain aquifer was evaluated and modeled to improve the parameterization of hydraulic conductivity (K) for a subregional-scale ground-water flow model being developed by the U.S. Geological Survey. The aquifer is hosted within a layered series of permeable basalts within which...
Holocene oceanographic and climatic variability of the Vega Drift deduced through foraminiferal interpretation
Phillip Szymcek, Scott E. Ishman, Eugene W. Domack, Amy Leventer
2007, Open-File Report 2007-1047-SRP-010
A sediment sequence recovered from the Vega Drift, Antarctica was analyzed for benthic foraminifera to determine Holocene oceanographic and climatic variability of the northern Antarctic Peninsula margin. Core NBP0003-JPC38, collected during cruise 00-03 of the R.V. Nathaniel B. Palmer recovered 20.53 meters of Holocene glacio-marine sediments. Samples were collected every...
Sm-Nd and U-Pb isotopic constraints for crustal evolution during Late Neoproterozic from rocks of the Schirmacher Oasis, East Antarctica: geodynamic development coeval with the East African Orogeny
V. Ravikant, J.H. Laux, M.M. Pimentel
2007, Open-File Report 2007-1047-SRP-007
Recent post-750 Ma continental reconstructions constrain models for East African Orogeny formation and also the scattered remnants of ~640 Ma granulites, whose genesis is controversial. One such Neoproterozoic granulite belt is the Schirmacher Oasis in East Antarctica, isolated from the distinctly younger Pan-African orogen to the south in the central...
Geologic Characterization of Young Alluvial Basin-Fill Deposits from Drill Hole Data in Yucca Flat, Nye County, Nevada
Donald S. Sweetkind, Ronald M. Drake II
2007, Open-File Report 2006-1390
Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada, that has been the site of numerous underground nuclear tests; many of these tests occurred within the young alluvial basin-fill deposits. The migration of radionuclides to the Paleozoic...
Advances through collaboration: sharing seismic reflection data via the Antarctic Seismic Data Library System for Cooperative Research (SDLS)
N. Wardell, J.R. Childs, A. K. Cooper
2007, Open-File Report 2007-1047-SRP-001
The Antarctic Seismic Data Library System for Cooperative Research (SDLS) has served for the past 16 years under the auspices of the Antarctic Treaty (ATCM Recommendation XVI-12) as a role model for collaboration and equitable sharing of Antarctic multichannel seismic reflection (MCS) data for geoscience studies. During this period, collaboration...
Hydrogeology of the Coconino Plateau and adjacent areas, Coconino and Yavapai Counties, Arizona
Donald J. Bills, Marilyn E. Flynn, Stephen A. Monroe
2007, Scientific Investigations Report 2005-5222
Two large, regional ground-water flow systems occur in the Coconino Plateau and adjacent areas: the C aquifer and the Redwall-Muav aquifer. The C aquifer occurs mainly in the eastern and southern parts of the 10,300-square-mile Coconino Plateau study area, and the Redwall-Muav aquifer underlies the entire study area. The C...
Surficial geology in central Narragansett Bay, Rhode Island: interpretations of sidescan sonar and multibeam bathymetry
Katherine Y. McMullen, Larry J. Poppe, Richard P. Signell, Jane F. Denny, Jim M. Crocker, Andrew L. Beaver, P. Tod Schattgen
2007, Open-File Report 2006-1199
The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Association (NOAA) to interpret the surficial geology in estuaries along the coast of the northeastern United States. The purpose of our present study is to determine the distributions of surficial sediments and sedimentary environments in...
Antarctic Multibeam Bathymetry and Geophysical Data Synthesis: an on-line digital data Resource for marine geoscience research in the Southern Ocean
S.M. Carbotte, William B. F. Ryan, S. O’Hara, R. Arko, A. Goodwillie, A. Melkonian, R.A. Weissel, V.L. Ferrini
2007, Open-File Report 2007-1047-SRP-002
The Antarctic Multibeam Bathymetry and Geophysical Data Synthesis(AMBS) is a web-accessible data resource for marine geoscience research in the Southern Ocean. The primary focusisto preserve and provide public accessto multibeam bathymetry acquired during expeditions of research vesselssupported by the U.S. National Science Foundation. Since itsinception in 2003, our primary goal has been to...
Antarctica and global paleogeography: from Rodinia, rhrough Gondwanaland and Pangea, to the birth of the Southern Ocean and the opening of gateways
T.H. Torsvik, C. Gaina, T.F. Redfield
2007, Open-File Report 2007-1047-KP-11
Neoproterozoic Rodinia reconstructions associate East Antarctica (EANT) with cratonic Western Australia. By further linking EANT to both Gondwana and Pangea with relative plate circuits, a Synthetic Apparent Polar Wander (SAPW) path for EANT is calculated. This path predicts that EANT was located at tropical to subtropical southerly latitudes from ca....
Basal Adare volcanics, Robertson Bay, North Victoria Land, Antarctica: Late Miocene intraplate basalts of subaqueous origin
N. Mortimer, W.J. Dunlap, M.J. Isaac, R.P. Sutherland, K. Faure
2007, Open-File Report 2007-1047-SRP-045
Late Cenozoic lavas and associated hyaloclastite breccias of the Adare volcanics (Hallett volcanic province) in Robertson Bay, North Victoria Land rest unconformably on Paleozoic greywackes. Abundant hyaloclastite breccias are confined to a paleovalley; their primary geological features, and the stable isotope ratios of secondary minerals, are consistent with eruption in...
Analysis of the dinoflagellate cyst genus Impletosphaeridium as a marker of sea- ice conditions off Seymour Island: An ecomorphological approach
S. Warny, J.B. Anderson, L. Londeix, P.J. Bart
2007, Open-File Report 2007-1047-SRP-079
A unique reworked palynological assemblage composed of 32 to 100% (average of 63%) in Impletosphaeridium spp., was found during the study of sixteen samples recovered from piston cores taken off Seymour Island, Antarctica, during a pre-SHALDRIL study. One of the common Impletosphaeridium species recovered, I. lorum, was previously found in Seymour Island’s...
Morphological evolution in the San Francisco Bight
Daniel M. Hanes, Patrick L. Barnard
2007, Journal of Coastal Research 469-473
San Francisco Bight, located near the coast of San Francisco, USA, is an extremely dynamic tidal inlet environmental subject to large waves and strong currents. Wave heights coming from the Pacific Ocean commonly exceed 5 m during winter storms. During peak flow tidal currents approach 3 m/s at the Golden...
Mega debris flow deposits on the western Wilkes Land margin, East Antarctica
F. Donda, P. E. O’Brien, L. De Santis, M. Rebesco, Giuliano Brancolini
2007, Open-File Report 2007-1047-SRP-040
Multichannel seismic data collected off Western Wilkes Land (East Antarctica) reveal the occurrence of mega debris flow deposits on the lower slope and rise that were formed throughout the Miocene. Commonly, debris flow units are separated by thin deposits of well-stratified facies, interpreted as predominantly glaciomarine mixed contouritic and distal...
