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...
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...
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...
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...
Growth rates of young-of-year shovelnose sturgeon in the Upper Missouri River
P. J. Braaten, D.B. Fuller
2007, Journal of Applied Ichthyology (23) 506-515
Information on growth during the larval and young-of-year life stages in natural river environments is generally lacking for most sturgeon species. In this study, methods for estimating ages and quantifying growth were developed for field-sampled larval and young-of-year shovelnose sturgeon Scaphirhynchus platorynchus in the upper Missouri River. First, growth was assessed by...
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...
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...
Surface-exposure ages of Front Range moraines that may have formed during the Younger Dryas, 8.2 cal ka, and Little Ice Age events
Larry Benson, Richard F. Madole, P. Kubik, Richard R. McDonald
2007, Quaternary Science Reviews (26) 1638-1649
Surface-exposure (10Be) ages have been obtained on boulders from three post-Pinedale end-moraine complexes in the Front Range, Colorado. Boulder rounding appears related to the cirque-to-moraine transport distance at each site with subrounded boulders being typical of the 2-km-long Chicago Lakes...
Lithospheric structure across the Transantarctic Mountains constrained by an analysis of gravity and thermal structure
Audrey D. Huerta
2007, Open-File Report 2007-1047-SRP-022
The Transantarctic Mountains demarcate the boundary between the highly extended lithosphere of the West Antarctic Rift System and the Proterozoic East Antarctic Craton. Although the last stage of relief development was in the Eocene, the TAM retain peak elevations in excess of 4500 m. This combination of old age and high relief...
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...
Paleocene and Maastrichtian calcareous nannofossils from clasts in Pleistocene glaciomarine muds from the northern James Ross Basin, western Weddell Sea, Antarctica
D.K. Kulhanek
2007, Open-File Report 2007-1047-SRP-019
Site NBP0602A-9, drilled during the SHALDRIL II cruise of the RV/IB Nathaniel B. Palmer, includes two holes located in the northern James Ross Basin in the western Weddell Sea, very close to the eastern margin of the Antarctic Peninsula. Sediment from both holes consists of very dark grey, pebbly, sandy...
The Ellsworth Mountains: critical and enduringly enigmatic
I.W.D. Dalziel
2007, Open-File Report 2007-1047-SRP-004
The Ellsworth Mountains, first mapped under the leadership of Campbell Craddock, pose critical geological enigmas, solved and unsolved. The isolation of the mountains, their abrupt structural terminations and Paleozoic stratigraphic affinities are explained by rotation from the cratonic margin during Gondwanaland breakup. The mechanism remains obscure. The absence of intense...
Earthquake hazard in the heart of the homeland
Joan Gomberg, Eugene Schweig
2007, Fact Sheet 2006-3125
Evidence that earthquakes threaten the Mississippi, Ohio, and Wabash River valleys of the Central United States abounds. In fact, several of the largest historical earthquakes to strike the continental United States occurred in the winter of 1811-1812 along the New Madrid seismic zone, which stretches from just west of Memphis,...
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...
Corrigendum to “Age model for a continuous, ca 250-ka Quaternary lacustrine record from Bear Lake, Utah–Idaho” [Quaternary Science Reviews 25 (2006) 2271–2282]
S.M. Colman, D. S. Kaufman, C. Heil, J.W. King, Walter E. Dean, Joseph G. Rosenbaum, R. M. Forester, J.L. Bishcoff, M. E. Perkins, John McGeehin
2007, Quaternary Science Reviews (26) 1192-1192
No abstract available. ...
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....
Magnetic character of a large continental transform: an aeromagnetic survey of the Dead Sea Fault
Uri S. ten Brink, Michael Rybakov, Abdallah S. Al-Zoubi, Yair Rotstein
2007, Geochemistry, Geophysics, Geosystems (8)
New high-resolution airborne magnetic (HRAM) data along a 120-km-long section of the Dead Sea Transform in southern Jordan and Israel shed light on the shallow structure of the fault zone and on the kinematics of the plate boundary. Despite infrequent seismic activity and only intermittent surface exposure, the fault is...
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...
Heavy-mineral provenance in an estuarine environment, Willapa Bay, Washington, USA: palaeogeographic implications and estuarine evolution
Gretchen Luepke Bynum
2007, Developments in Sedimentology (58) 587-605
Modern sediments from representative localities in Willapa Bay, Washington, comprise two principal heavy-mineral suites. One contains approximately equivalent amounts of hornblende, orthopyroxene, and clinopyroxene; this is derived from the Columbia River, which discharges into the Pacific Ocean a short distance south of the bay. The other suite, dominated by clinopyroxene,...
Predicting longshore gradients in longshore transport: the CERC formula compared to Delft3D
Jeffrey H. List, Daniel M. Hanes, Peter Ruggiero
2007, Conference Paper, Coastal engineering 2006: Proceedings of the 30th international conference
The prediction of longshore transport gradients is critical for forecasting shoreline change. We employ simple test cases consisting of shoreface pits at varying distances from the shoreline to compare the longshore transport gradients predicted by the CERC formula against results derived from the process-based model Delft3D. Results show that while...
Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project
Cynthia Dusel-Bacon, John N. Aleinikoff, Wayne R. Premo, Suzanne Paradis, Ilana Lohr-Schmidt
Larry P. Gough, Warren C. Day, editor(s)
2007, Scientific Investigations Report 2007-5289-B
This paper summarizes the results of field and laboratory investigations, including whole-rock geochemistry and radiogenic isotopes, of outcrop and drill core samples from volcanogenic massive sulfide (VMS) deposits and associated metaigneous rocks in the Wood River area of the Bonnifield mining district, northern Alaska Range (see fig. 1 of Editors’...
Monitoring and modeling nearshore dredge disposal for indirect beach nourishment, Ocean Beach, San Francisco
Patrick L. Barnard, Daniel M. Hanes, Jamie Lescinski, Edwin Elias
2007, Conference Paper, Coastal engineering 2006: proceedings of the 30th international conference: San Diego, California, USA, 3-8 September 2006
Nearshore dredge disposal was performed during the summer of 2005 at Ocean Beach, San Francisco, CA, a high energy tidal and wave environment. This trial run was an attempt to provide a buffer to a reach of coastline where wave attack during the winter months has had a severe impact...
Differences in ice retreat across Pine Island Bay, West Antarctica, since the Last Glacial Maximum: Indications from multichannel seismic reflection data
G. Uenzelmann-Neben, K. Gohl, R.D. Larter, P. Schluter
2007, Open-File Report 2007-1047-SRP-084
An understanding of the glacial history of Pine Island Bay (PIB) is essential for refining models of the future stability of the West Antarctic Ice Sheet (WAIS). New multichannel seismic reflection data from inner PIB are interpreted in context of previously published reconstructions for the retreat history in this area...
