Now showing items 1265-1284 of 4933

  • Early anthropogenic transformation of the Danube-Black Sea system 

    Giosan, Liviu; Coolen, Marco J. L.; Kaplan, Jed O.; Constantinescu, Stefan; Filip, Florin; Filipova-Marinova, Mariana; Kettner, Albert J.; Thom, Nick (Nature Publishing Group, 2012-08-30)
    Over the last century humans have altered the export of fluvial materials leading to significant changes in morphology, chemistry, and biology of the coastal ocean. Here we present sedimentary, paleoenvironmental and ...
  • Early exposure of bay scallops (Argopecten irradians) to high CO2 causes a decrease in larval shell growth 

    White, Meredith M.; McCorkle, Daniel C.; Mullineaux, Lauren S.; Cohen, Anne L. (Public Library of Science, 2013-04-15)
    Ocean acidification, characterized by elevated pCO2 and the associated decreases in seawater pH and calcium carbonate saturation state (Ω), has a variable impact on the growth and survival of marine invertebrates. Larval ...
  • Early life history and fisheries oceanography : new questions in a changing world 

    Llopiz, Joel K.; Cowen, Robert K.; Hauff, Martha J.; Ji, Rubao; Munday, Philip L.; Muhling, Barbara A.; Peck, Myron A.; Richardson, David E.; Sogard, Susan M.; Sponaugle, Su (The Oceanography Society, 2014-12)
    In the past 100 years since the birth of fisheries oceanography, research on the early life history of fishes, particularly the larval stage, has been extensive, and much progress has been made in identifying the mechanisms ...
  • Early Miocene Mollusca from McMurdo Sound, Antarctica (ANDRILL 2A drill core), with a review of Antarctic Oligocene and Neogene Pectinidae (Bivalvia) 

    Beu, Alan; Taviani, Marco (2013-06)
    Retrotapes andrillorum n. sp., Hiatella cf. arctica (Linnaeus, 1767), ?Yoldia sp. (internal mould), and six taxa of Pectinidae are reported from the Burdigalian section of the ANDRILL 2A core, drilled in McMurdo Sound, ...
  • Early Pliocene increase in thermohaline overturning : a precondition for the development of the modern equatorial Pacific cold tongue 

    Steph, Silke; Tiedemann, Ralf; Prange, Matthias; Groeneveld, Jeroen; Schulz, Michael; Timmermann, Axel; Nurnberg, Dirk; Ruhlemann, Carsten; Saukel, Cornelia; Haug, Gerald H. (American Geophysical Union, 2010-04-15)
    Unraveling the processes responsible for Earth's climate transition from an “El Niño–like state” during the warm early Pliocene into a modern-like “La Niña–dominated state” currently challenges the scientific community. ...
  • Early season depletion of dissolved iron in the Ross Sea polynya : implications for iron dynamics on the Antarctic continental shelf 

    Sedwick, Peter N.; Marsay, C. M.; Sohst, B. M.; Aguilar-Islas, Ana M.; Lohan, M. C.; Long, Matthew C.; Arrigo, Kevin R.; Dunbar, Robert B.; Saito, Mak A.; Smith, Walker O.; DiTullio, Giacomo R. (American Geophysical Union, 2011-12-15)
    The Ross Sea polynya is among the most productive regions in the Southern Ocean and may constitute a significant oceanic CO2 sink. Based on results from several field studies, this region has been considered seasonally ...
  • Earthquake behavior and structure of oceanic transform faults 

    Roland, Emily C. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-02)
    Oceanic transform faults that accommodate strain at mid-ocean ridge offsets represent a unique environment for studying fault mechanics. Here, I use seismic observations and models to explore how fault structure affects ...
  • Earthquake scaling relations for mid-ocean ridge transform faults 

    Boettcher, Margaret S.; Jordan, T. H. (American Geophysical Union, 2004-12-09)
    A mid-ocean ridge transform fault (RTF) of length L, slip rate V, and moment release rate dot above M can be characterized by a seismic coupling coefficient χ = A E/A T, where A E ∼ dot above M/V is an effective seismic ...
  • Earthquake swarms driven by aseismic creep in the Salton Trough, California 

    Lohman, Rowena B.; McGuire, Jeffrey J. (American Geophysical Union, 2007-04-10)
    In late August 2005, a swarm of more than a thousand earthquakes between magnitudes 1 and 5.1 occurred at the Obsidian Buttes, near the southern San Andreas Fault. This swarm provides the best opportunity to date to assess ...
  • Earthquake swarms on transform faults 

    Roland, Emily C.; McGuire, Jeffrey J. (John Wiley & Sons, 2009-06-04)
    Swarm-like earthquake sequences are commonly observed in a diverse range of geological settings including volcanic and geothermal regions as well as along transform plate boundaries. They typically lack a clear mainshock, ...
  • The East Greenland Coastal Current : its structure variability, and large-scale impact 

    Sutherland, David A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-02)
    The subtidal circulation of the southeast Greenland shelf is described using a set of highresolution hydrographic and velocity transects occupied in summer 2004. The main feature present is the East Greenland Coastal ...
  • The East Greenland Coastal Current : structure, variability, and forcing 

    Sutherland, David A.; Pickart, Robert S. (2008-03-12)
    The subtidal circulation of the southeast Greenland shelf is described using a set of high-resolution hydrographic and velocity transects occupied in summer 2004. The main feature is the East Greenland Coastal Current ...
  • The East Greenland Spill Jet 

    Pickart, Robert S.; Torres, Daniel J.; Fratantoni, Paula S. (American Meteorological Society, 2005-06)
    High-resolution hydrographic and velocity measurements across the East Greenland shelf break south of Denmark Strait have revealed an intense, narrow current banked against the upper continental slope. This is believed to ...
  • The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation 

    von Appen, Wilken-Jon; Koszalka, Inga M.; Pickart, Robert S.; Haine, Thomas W. N.; Mastropole, Dana; Magaldi, Marcello G.; Valdimarsson, Heoinn; Girton, James B.; Jochumsen, Kerstin; Krahmann, Gerd (2014-06-03)
    The recently discovered East Greenland Spill Jet is a bottom-intensified current on the upper continental slope south of Denmark Strait, transporting intermediate density water equatorward. Until now the Spill Jet has ...
  • Eastern Pacific Warm Pool paleosalinity and climate variability : 0–30 kyr 

    Benway, Heather M.; Mix, Alan C.; Haley, Brian A.; Klinkhammer, Gary P. (American Geophysical Union, 2006-08-16)
    Multi-proxy geologic records of δ18O and Mg/Ca in fossil foraminifera from sediments under the Eastern Pacific Warm Pool (EPWP) region west of Central America document variations in upper ocean temperature, pycnocline ...
  • Eastern tropical Pacific hydrologic changes during the past 27,000 years from D/H ratios in alkenones 

    Pahnke, Katharina; Sachs, Julian P.; Keigwin, Lloyd D.; Timmermann, Axel; Xie, Shang-Ping (American Geophysical Union, 2007-12-18)
    The tropical Pacific plays a central role in the climate system by providing large diabatic heating that drives the global atmospheric circulation. Quantifying the role of the tropics in late Pleistocene climate change has ...
  • Eastern Tropical South Pacific Nitrogen fixation 

    Knapp, Angela; Casciotti, Karen L.; Berelson, William M.; Prokopenko, Maria; Capone, Douglas (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2015-04-16)
    [forthcoming]
  • Echo statistics of individual and aggregations of scatterers in the water column of a random, oceanic waveguide 

    Jones, Benjamin A.; Colosi, John A.; Stanton, Timothy K. (Acoustical Society of America, 2014-07)
    The relative contributions of various physical factors to producing non-Rayleigh distributions of echo magnitudes in a waveguide are examined. Factors that are considered include (1) a stochastic, range-dependent sound-speed ...
  • Echolocation clicks of free-ranging Cuvier's beaked whales (Ziphius cavirostris) 

    Zimmer, Walter M. X.; Johnson, Mark P.; Madsen, Peter T.; Tyack, Peter L. (Acoustical Society of America, 2005-06)
    Strandings of beaked whales of the genera Ziphius and Mesoplodon have been reported to occur in conjunction with naval sonar use. Detection of the sounds from these elusive whales could reduce the risk of exposure, but ...
  • Echolocation-based foraging by harbor porpoises and sperm whales, including effects of noise and acoustic propagation 

    DeRuiter, Stacy L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-09)
    In this thesis, I provide quantitative descriptions of toothed whale echolocation and foraging behavior, including assessment of the effects of noise on foraging behavior and the potential influence of ocean acoustic ...