Now showing items 21-40 of 8693

    • Swimming kinematics and efficiency of entangled North Atlantic right whales 

      van der Hoop, Julie; Nowacek, Douglas P.; Moore, Michael J.; Triantafyllou, Michael S. (Inter-Research, 2017-01-12)
      Marine mammals are streamlined for efficient movement in their relatively viscous fluid environment and are able to alter their kinematics (i.e. fluke stroke frequency, amplitude, or both) in response to changes in force ...
    • Characterization of trace metal content in the developing zebrafish embryo 

      Thomason, Rebecca T.; Pettiglio, Michael A.; Herrera, Carolina; Kao, Clara; Gitlin, Jonathan D.; Bartnikas, Thomas B. (Public Library of Science, 2017-06-15)
      Trace metals are essential for health but toxic when present in excess. The maintenance of trace metals at physiologic levels reflects both import and export by cells and absorption and excretion by organs. The mechanism ...
    • Evolution of the south Pacific helium plume over the past three decades 

      Lupton, John E.; Jenkins, William J. (John Wiley & Sons, 2017-05-04)
      The recent GEOTRACES Eastern Pacific Zonal Transect in 2013 crossed the East Pacific Rise at 15°S following the same track as the 1987 Helios Expedition along the core of the mid-depth helium plume that spreads westward ...
    • Magnesium isotopic composition of the oceanic mantle and oceanic Mg cycling 

      Liu, Ping-Ping; Teng, Fang-Zhen; Dick, Henry J. B.; Zhou, Mei-Fu; Chung, Sun-Lin (2017-02)
      To constrain the Mg isotopic composition of the oceanic mantle, investigate Mg isotope fractionation of abyssal peridotites during seafloor alteration, and assess Mg budget in the oceans, a suite of 32 abyssal peridotite ...
    • Dates of sea ice movement and sea ice distance in McMurdo Sound, Antarctica from MODIS and SSMI imagery between 1978-2015 (McMurdo Predator Prey project) 

      Kim, Stacy; Daly, Kendra L.; Ainley, David G.; Ballard, Grant (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-07-07)
      Fast/sea ice movement was quantified from visible-wavelength images from the Moderate-resolution Imaging Spectroradiometer (MODIS) aboard the Aqua and Terra satellites (250 m resolution; processing occurred for 2002/03-2014/15 ...
    • Sea ice parameters near McMurdo Station, Antarctica from 1986 to 2013 

      Kim, Stacy; Daly, Kendra L.; Ainley, David G.; Ballard, Grant (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-07-07)
      Fast ice thickness and temperature data collected at the “sea ice runway” near McMurdo Station by the United States Antarctic Program (USAP) logistic support contractors and provided by the Ice Surveyor (J Scanniello). ...
    • Characteristics of colliding sea breeze gravity current fronts : a laboratory study 

      van der Wiel, Karin; Gille, Sarah T.; Llewellyn Smith, Stefan; Linden, P. F.; Cenedese, Claudia (2017-02)
      Sea and land breeze circulations driven by surface temperature differences between land and sea often evolve into gravity currents with sharp fronts. Along narrow peninsulas, islands and enclosed seas, sea/land breeze ...
    • Institutional barriers to coastal resilience 

      Hoagland, Porter (2017-06-23)
      Many US coastal communities have experienced decades of expanding population growth, in-volving the construction of private residences, businesses, and public infrastructures in near-coast areas. In the United States, ...
    • Icebreaker dates and ice edge distance in McMurdo Sound, Antarctica from austral years 1956/1957 to 2014/2015 (McMurdo Predator Prey project) 

      Kim, Stacy; Daly, Kendra L.; Ainley, David G.; Ballard, Grant (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-07-07)
      The icebreaker channel from the fast ice edge to McMurdo Station has been created each year since 1956, with the location of the channel remaining consistent, by and large, over the entire period. Dates of the icebreaker ...
    • Demersal fish assemblages on seamounts and other rugged features in the northeastern Caribbean 

      Quattrini, Andrea M.; Demopoulos, Amanda W. J.; Singer, Randal; Roa-Varon, Adela; Chaytor, Jason D. (2017-03)
      Recent investigations of demersal fish communities in deepwater (>50 m) habitats have considerably increased our knowledge of the factors that influence the assemblage structure of fishes across mesophotic to deep-sea ...
    • Flow separation effects on shoreline sediment transport 

      Hopkins, Julia; Elgar, Steve; Raubenheimer, Britt (2017-01)
      Field-tested numerical model simulations are used to estimate the effects of an inlet, ebb shoal, wave height, wave direction, and shoreline geometry on the variability of bathymetric change on a curved coast with a migrating ...
    • Shelled pteropods in peril : assessing vulnerability in a high CO2 ocean 

      Manno, Clara; Bednaršek, Nina; Tarling, Geraint A.; Peck, Vicky L.; Comeau, Steeve; Adhikari, Deepak; Bakker, Dorothee; Bauerfeind, Eduard; Bergan, Alexander J.; Berning, Maria I.; Buitenhuis, Erik T.; Burridge, Alice K.; Chierici, Melissa; Flöter, Sebastian; Fransson, Agneta; Gardner, Jessie; Howes, Ella L.; Keul, Nina; Kimoto, Katsunori; Kohnert, Peter; Lawson, Gareth L.; Lischka, Silke; Maas, Amy E.; Mekkes, Lisette; Oakes, Rosie L.; Pebody, Corinne; Peijnenburg, Katja T. C. A.; Seifert, Miriam; Skinner, Jennifer; Thibodeau, Patricia S.; Wall-Palmer, Deborah; Ziveri, Patrizia (Elsevier, 2017-04-09)
      The impact of anthropogenic ocean acidification (OA) on marine ecosystems is a vital concern facing marine scientists and managers of ocean resources. Euthecosomatous pteropods (holoplanktonic gastropods) represent an ...
    • Spatial patterns and intensity of the surface storm tracks in CMIP5 models 

      Booth, James F.; Kwon, Young-Oh; Ko, Stanley; Small, R. Justin; Msadek, Rym (American Meteorological Society, 2017-04-03)
      To improve the understanding of storm tracks and western boundary current (WBC) interactions, surface storm tracks in 12 CMIP5 models are examined against ERA-Interim. All models capture an equatorward displacement toward ...
    • Broadband classification and statistics of echoes from aggregations of fish measured by long-range, mid-frequency sonar 

      Jones, Benjamin A.; Stanton, Timothy K.; Colosi, John A.; Gauss, Roger C.; Fialkowski, Joseph M.; Jech, J. Michael (Acoustical Society of America, 2017-06-13)
      For horizontal-looking sonar systems operating at mid-frequencies (1–10 kHz), scattering by fish with resonant gas-filled swimbladders can dominate seafloor and surface reverberation at long-ranges (i.e., distances much ...
    • Coastal sources, sinks and strong organic complexation of dissolved cobalt within the US North Atlantic GEOTRACES transect GA03 

      Noble, Abigail E.; Ohnemus, Daniel C.; Hawco, Nicholas J.; Lam, Phoebe J.; Saito, Mak A. (Copernicus Publications on behalf of the European Geosciences Union, 2017-06-02)
      Cobalt is the scarcest of metallic micronutrients and displays a complex biogeochemical cycle. This study examines the distribution, chemical speciation, and biogeochemistry of dissolved cobalt during the US North Atlantic ...
    • On nonhydrostatic coastal model simulations of shear instabilities in a stratified shear flow at high Reynolds number 

      Zhou, Zheyu; Yu, Xiao; Hsu, Tian-Jian; Shi, Fengyan; Geyer, W. Rockwell; Kirby, James T. (John Wiley & Sons, 2017-04-11)
      The nonhydrostatic surface and terrain-following coastal model NHWAVE is utilized to simulate a continually forced stratified shear flow in a straight channel, which is a generic problem to test the existing nonhydrostatic ...
    • The boron and lithium isotopic composition of mid-ocean ridge basalts and the mantle 

      Marschall, Horst R.; Wanless, V. Dorsey; Shimizu, Nobumichi; Pogge von Strandmann, Philip; Elliott, Tim; Monteleone, Brian D. (2017-03-17)
      A global selection of 56 mid-ocean ridge basalt (MORB) glasses were analysed for Li and B abundances and isotopic compositions. Analytical accuracy and precision of analyses constitute an improvement over previously published ...
    • Biogeochemical protocols and diagnostics for the CMIP6 Ocean Model Intercomparison Project (OMIP) 

      Orr, James C.; Najjar, Raymond G.; Aumont, Olivier; Bopp, Laurent; Bullister, John L.; Danabasoglu, Gokhan; Doney, Scott C.; Dunne, John P.; Dutay, Jean-Claude; Graven, Heather; Griffies, Stephen; John, Jasmin G.; Joos, Fortunat; Levin, Ingeborg; Lindsay, Keith; Matear, Richard J.; McKinley, Galen A.; Mouchet, Anne; Oschlies, Andreas; Romanou, Anastasia; Schlitzer, Reiner; Tagliabue, Alessandro; Tanhua, Toste; Yool, Andrew (Copernicus Publications on behalf of the European Geosciences Union, 2017-06-09)
      The Ocean Model Intercomparison Project (OMIP) focuses on the physics and biogeochemistry of the ocean component of Earth system models participating in the sixth phase of the Coupled Model Intercomparison Project (CMIP6). ...
    • Leaching losses from Kenyan maize cropland receiving different rates of nitrogen fertilizer 

      Russo, Tess A.; Tully, Katherine L.; Palm, Cheryl; Neill, Christopher (Springer, 2017-05-16)
      Meeting food security requirements in sub-Saharan Africa (SSA) will require increasing fertilizer use to improve crop yields, however excess fertilization can cause environmental and public health problems in surface and ...
    • A simple diagnostic for the detection of atmospheric fronts 

      Parfitt, Rhys; Czaja, Arnaud; Seo, Hyodae (John Wiley & Sons, 2017-05-14)
      In this article, a simple diagnostic to identify atmospheric fronts objectively from gridded data sets is presented. For this diagnostic, fronts are identified as regions where the normalized product of the isobaric relative ...