A comparison of two gears for quantifying abundance of lotic-dwelling crayfish
Kristi Williams, Shannon K. Brewer, Mark R. Ellersieck
2014, Journal of Crustacean Biology (34) 54-60
Crayfish (saddlebacked crayfish, Orconectes medius) catch was compared using a kick seine applied two different ways with a 1-m2 quadrat sampler (with known efficiency and bias in riffles) from three small streams in the Missouri Ozarks. Triplicate samples (one of each technique) were taken from two creeks and one headwater...
Centralized mission planning and scheduling system for the Landsat Data Continuity Mission
Alicia Kavelaars, Assaf M. Barnoy, Shawna Gregory, Gonzalo Garcia, Cesar Talon, Gregory Greer, Jason Williams, Vicki Dulski
2014, Conference Paper, SpaceOps 2014 Conference
Satellites in Low Earth Orbit provide missions with closer range for studying aspects such as geography and topography, but often require efficient utilization of space and ground assets. Optimizing schedules for these satellites amounts to a complex planning puzzle since it requires operators to face issues such as discontinuous ground...
Thermochronology of Cretaceous batholithic rocks in the northern Peninsular Ranges batholith, southern California: Implications for the Late Cretaceous tectonic evolution of southern California
Daniel P. Miggins, Wayne R. Premo, Lawrence W. Snee, Ross Yeoman, Nancy D. Naeaer, Charles W. Naeser, Douglas M. Morton
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
The thermochronology for several suites of Mesozoic metamorphic and plutonic rocks collected throughout the northern Peninsular Ranges batholith (PRB) was studied as part of a collaborative isotopic study to further our understanding of the magmatic and tectonic history of southern California. These sample suites include: a traverse through the plutonic...
U-Pb zircon geochronology of plutonism in the northern Peninsular Ranges batholith, southern California: Implications for the Late Cretaceous tectonic evolution of southern California
Wayne R. Premo, Douglas M. Morton, Joseph L. Wooden, C. Mark Fanning
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
Utilizing both sensitive high-resolution ion microprobe (SHRIMP) and conventional isotope dilution–thermal ionization mass spectrometry (ID-TIMS) methods, crystallization and/or emplacement ages have been obtained for a suite of Cretaceous intermediate-composition plutonic samples collected along a roughly E-W–trending traverse through the northern Peninsular Ranges batholith. Previously noted petrologic, mineralogic, and textural differences...
Use of multi-sensor active fire detections to map fires in the United States: the future of monitoring trends in burn severity
Joshua J. Picotte, Michael Coan, Stephen M. Howard
2014, Conference Paper, Proceedings: Wildland fire in the Appalachians: Discussions among managers and scientists. General Technical Report SRS-199
The effort to utilize satellite-based MODIS, AVHRR, and GOES fire detections from the Hazard Monitoring System (HMS) to identify undocumented fires in Florida and improve the Monitoring Trends in Burn Severity (MTBS) mapping process has yielded promising results. This method was augmented using regression tree models to identify burned/not-burned pixels...
SHRIMP-RG U-Pb ages of provenance and metamorphism from detrital zircon populations and Pb-Sr-Nd signatures of prebatholithic metasedimentary rocks at Searl Ridge, northern Peninsular Ranges batholith, southern California: Implications for their age, origin, and tectonic setting
Wayne R. Premo, Douglas M. Morton
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
Twenty-four samples were collected from prebatholithic metasedimentary rocks along Searl Ridge, the north rim of the Diamond Valley Reservoir, Domenigoni Valley, centrally located in the northern Peninsular Ranges of southern California. These rocks exhibit progressive metamorphism from west to east across fundamental structural discontinuities now referred to as a “transition...
Age and isotopic systematics of Cretaceous borehole and surface samples from the greater Los Angeles Basin region: Implications for the types of crust that might underlie Los Angeles and their distribution along late Cenozoic fault systems
Wayne R. Premo, Douglas M. Morton, Ronald W. Kistler
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
Nine U-Pb zircon ages were determined on plutonic rocks sampled from surface outcrops and rock chips of drill core from boreholes within the greater Los Angeles Basin region. In addition, lead-strontium-neodymium (Pb-Sr-Nd) whole-rock isotopic data were obtained for eight of these samples. These results help to characterize the crystalline basement...
Waterfowl in Cuba: Current status and distribution
Pedro Blanco Rodriquez, Francisco Vilella, Barbara Sanchez Oria
2014, Wildfowl (4) 498-511
Cuba and its satellite islands represent the largest landmass in the Caribbean archipelago and a major repository of the region’s biodiversity. Approximately 13.4% of the Cuban territory is covered by wetlands, encompassing approximately 1.48 million ha which includes mangroves, flooded savannas, peatlands, freshwater swamp forests and various types of managed wetlands. Here, we synthesise...
Pb-Sr-Nd-O isotopic characterization of Mesozoic rocks throughout the northern end of the Peninsular Ranges batholith: Isotopic evidence for the magmatic evolution of oceanic arc–continental margin accretion during the Late Cretaceous of southern California
Ronald W. Kistler, Joseph L. Wooden, Wayne R. Premo, Douglas M. Morton
2014, Book chapter, Peninsular ranges Batholith, Baja California and southern California: Geological Society of America Memoir 211
Within the duration of the U.S. Geological Survey (USGS)–based Southern California Areal Mapping Project (SCAMP), many samples from the northern Peninsular Ranges batholith were studied for their whole-rock radioisotopic systematics (rubidium-strontium [Rb-Sr], uranium-thorium-lead [U-Th-Pb], and samarium-neodymium [Sm-Nd]), as well as oxygen (O), a stable isotope. The results of three main...
Defining ecological and economical hydropoweroperations: a framework for managing dam releasesto meet multiple conflicting objectives
Elise R. Irwin
2014, Journal of Energy Challenges and Mechanics (1) 139-146
Hydroelectric dams are a flexible source of power, provide flood control, and contribute to the economic growth of local communities through real-estate and recreation. Yet the impoundment of rivers can alter and fragment miles of critical riverine habitat needed for other competing needs such as downstream consumptive water use, fish...
Water quality monitoring protocol for wadeable streams and rivers in the Northern Great Plains Network
Marcia H. Wilson, Barbara L. Rowe, Robert A. Gitzen, Stephen K. Wilson, Kara J. Paintner-Green
2014, Natural Resource Report NPS/NGPN/NRR—2014/868
Preserving the national parks unimpaired for the enjoyment of future generations is a fundamental purpose of the National Park Service (NPS). To address growing concerns regarding the overall physical, chemical, and biological elements and processes of park ecosystems, the NPS implemented science-based management through “Vital Signs” monitoring in 270 national...
Impact of increasing market access on a tropical small-scale fishery
Kara Stevens, Brian J. Irwin, Daniel Kramer, Gerald Urquhart
2014, Marine Policy (50) 46-52
Small-scale fisheries have historically been marginalized in management and policy investments, and they often remain under-reported in national economic and fisheries statistics. Even so, small-scale fisheries are not entirely buffered from the impacts of globalization, such as the introduction and expansion of markets. This study measures the long-term impact of...
Pros and cons of rotating ground motion records to fault-normal/parallel directions for response history analysis of buildings
Erol Kalkan, Neal S. Kwong
2014, Journal of Structural Engineering (140) 1-14
According to the regulatory building codes in the United States (e.g., 2010 California Building Code), at least two horizontal ground motion components are required for three-dimensional (3D) response history analysis (RHA) of building structures. For sites within 5 km of an active fault, these records should be rotated to...
Molecular signature of organic nitrogen in septic-impacted groundwater
William A. Arnold, Krista Longnecker, Kevin D. Kroeger, Elizabeth B. Kujawinski
2014, Environmental Science: Processes and Impacts (16) 2400-2407
Dissolved inorganic and organic nitrogen levels are elevated in aquatic systems due to anthropogenic activities. Dissolved organic nitrogen (DON) arises from various sources, and its impact could be more clearly constrained if specific sources were identified and if the molecular-level composition of DON were better understood. In this work, the...
Mammoth Mountain and its mafic periphery—A late Quaternary volcanic field in eastern California
Wes Hildreth, Judith Fierstein, Duane E. Champion, Andrew T. Calvert
2014, Geosphere (10) 1315-1365
The trachydacite complex of Mammoth Mountain and an array of contemporaneous mafic volcanoes in its periphery together form a discrete late Pleistocene magmatic system that is thermally and compositionally independent of the adjacent subalkaline Long Valley system (California, USA). The Mammoth system first erupted ca. 230 ka, last erupted ca....
The Devonian Marcellus Shale and Millboro Shale
Daniel J. Soeder, Catherine B. Enomoto, John A. Chermak
2014, GSA Field Guides (35) 129-160
The recent development of unconventional oil and natural gas resources in the United States builds upon many decades of research, which included resource assessment and the development of well completion and extraction technology. The Eastern Gas Shales Project, funded by the U.S. Department of Energy in the 1980s, investigated the...
Fine-grained linings of leveed channels facilitate runout of granular flows
B.P. Kokelaar, R. L. Graham, J.M.N.T. Gray, James W. Vallance
2014, Earth and Planetary Science Letters (385) 172-180
Catastrophic dense granular flows, such as occur in rock avalanches, debris flows and pyroclastic flows, move as fully shearing mixtures that have approximately 60 vol.% solids and tend to segregate to form coarse-grained fronts and leveed channels. Levees restrict spreading of unconfined flows and form as coarse particles that become...
Studying seafloor bedforms using autonomous stationary imaging and profiling sonars
Ellyn T. Montgomery, Christopher R. Sherwood
2014, Conference Paper, OCEANS 2013: Proceedings of a meeting held 23-27 September 2013, San Diego, California, USA
The Sediment Transport Group at the U.S. Geological Survey, Woods Hole Coastal and Marine Science Center uses downward looking sonars deployed on seafloor tripods to assess and measure the formation and migration of bedforms. The sonars have been used in three resolution-testing experiments, and deployed autonomously to observe changes in...
Predicting connectivity of green turtles at Palmyra Atoll, central Pacific: a focus on mtDNA and dispersal modelling
Eugenia Naro-Maciel, Stephen J. Gaughran, Nathan Freeman Putman, George Amato, Felicity Arengo, Peter H. Dutton, Katherine W. McFadden, Erin C. Vintinner, Eleanor J. Sterling
2014, Journal of the Royal Society Interface (11)
Population connectivity and spatial distribution are fundamentally related to ecology, evolution and behaviour. Here, we combined powerful genetic analysis with simulations of particle dispersal in a high-resolution ocean circulation model to investigate the distribution of green turtles foraging at the remote Palmyra Atoll National Wildlife Refuge, central Pacific. We analysed...
Evaluation and prioritization of stream habitat monitoring in the Lower Columbia Salmon and Steelhead Recovery Domain as related to the habitat monitoring needs of ESA recovery plans
Amy L. Puls, Kara Anlauf Dunn, Bernadette Graham Hudson
2014, Report
The lower Columbia River and its tributaries once supported abundant runs of salmon and steelhead; however, there are five species currently listed under the federal Endangered Species Act (ESA). The National Marine Fisheries Service has completed, and is proposing for adoption, a comprehensive ESA Recovery Plan for the Lower Columbia...
Structure and seismic hazard of the Ventura Avenue anticline and Ventura fault, California: Prospect for large, multisegment ruptures in the Western Transverse Ranges
Judith Hubbard, John H. Shaw, James F. Dolan, Thomas L. Pratt, Lee J. McAuliffe, Thomas K. Rockwell
2014, Bulletin of the Seismological Society of America (104) 1070-1087
The Ventura Avenue anticline is one of the fastest uplifting structures in southern California, rising at ∼5 mm/yr. We use well data and seismic reflection profiles to show that the anticline is underlain by the Ventura fault, which extends to seismogenic depth. Fault offset increases with depth, implying that the...
Earthquake mechanism and seafloor deformation for tsunami generation
Eric L. Geist, David D. Oglesby
Michael Beer, Ioannis A. Kougioumtzoglou, Edoardo Patelli, Ivan Siu-Kui Au, editor(s)
2014, Book chapter, Encyclopedia of earthquake engineering
Tsunamis are generated in the ocean by rapidly displacing the entire water column over a significant area. The potential energy resulting from this disturbance is balanced with the kinetic energy of the waves during propagation. Only a handful of submarine geologic phenomena can generate tsunamis: large-magnitude earthquakes, large landslides, and...
Climate Change 2014: Technical Summary
Chrisopher B. Field, Vicente Barros, Katherine Mach, Michael Mastrandrea, Maarten van Aalst, Niel Adger, Douglas J Arent, Jonathan Barnett, Richard Betts, Eren Bilir, Joern Birkmann, Joann Carmin, Dave Chadee, Andrew Challinor, Monalisa Chaterjee, Wolfgang Cramer, Debra Davidson, Yuka Estrada, Jean-Pierre Gatusso, Yasuakai Hijioka, Gary Yohe, Margaret Hiza, Ove Hoegh-Guldberg, He-Qing Huang, Gregory Insarov, Roger Jones, Sari Kovats, Patricia Romero Lankao, Joan Nymand Larsen, Inigo Losada, Jose Marengo, Roger McLean, Linda Mearns, Reinhard Mechler, John Morton, Isabelle Niang, Taikan Oki, Jane Mukarugwiza Olwoch, Maggie Opondo, Elvira Poloczanska, Hans #NAME? Portner, Andy Reisinger, Aromar Revi, Daniela Schmidt, Rebecca Shaw, William Solecki, Daithi Stone, John Stone, Ken Strzepek, Avelino G. Suarez, Petra Tschakert, Riccardo Valentini, Sebastian Vicuna, Alicia Villamizar, Katharine Vincent, Rachel Warren, Leslie White, Thomas Wilbanks, Poh Poh Wong
2014, Book chapter, Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change
Human interference with the climate system is occurring (WGI AR5 SPM Section D.3; WGI AR5 Sections 2.2, 6.3, 10.3 to 10.6, 10.9). Climate change poses risks for human and natural systems. The assessment of impacts, adaptation, and vulnerability in the Working Group II contribution to the IPCC’s Fifth Assessment Report...
Trends in the capture fisheries in Cuyo East Pass, Philippines
Tee-Jay A. San Diego, William L. Fisher
2014, International Journal of Fisheries and Aquatic Studies (1) 57-72
Findings are presented of a comprehensive analysis of time series catch and effort data from 2000 to 2006 collected from a multi-species, multi-gear and two-sector (municipal and commercial) capture fisheries in Cuyo East Pass, Philippines. Multivariate techniques were used to determine temporal variation in species composition and gear selectivity that...
The Wallula fault and tectonic framework of south-central Washington, as interpreted from magnetic and gravity anomalies
Richard J. Blakely, Brian L. Sherrod, Craig S. Weaver, Ray E. Wells, Alan C. Rohay
2014, Tectonophysics (624-625) 32-45
The Yakima fold and thrust belt (YFTB) in central Washington has accommodated regional, mostly north-directed, deformation of the Cascadia backarc since prior to emplacement of Miocene flood basalt of the Columbia River Basalt Group (CRBG). The YFTB consists of two structural domains. Northern folds of the YFTB strike eastward and...
