Now showing items 1337-1356 of 5415

    • Does a ballast effect occur in the surface ocean? 

      Sanders, Richard J.; Morris, Paul J.; Poulton, Alex J.; Stinchcombe, Mark C.; Charalampopoulou, Anastasia; Lucas, Mike I.; Thomalla, Sandy J. (American Geophysical Union, 2010-04-29)
      The oceanic biological carbon pump (BCP), a large (10 GT C yr−1) component of the global carbon cycle, is dominated by the sinking (export) of particulate organic carbon (POC) from surface waters. In the deep ocean, strong ...
    • Does fish larval dispersal differ between high and low latitudes? 

      Leis, Jeffrey M.; Caselle, Jennifer E.; Bradbury, Ian R.; Kristiansen, Trond; Llopiz, Joel K.; Miller, Michael J.; O'Connor, Mary I.; Paris, Claire B.; Shanks, Alan L.; Sogard, Susan M.; Swearer, Stephen E.; Treml, Eric A.; Vetter, Russell D.; Warner, Robert R. (2013-02)
      Several factors lead to expectations that the scale of larval dispersal and population connectivity of marine animals differs with latitude. We examine this expectation for demersal shorefishes, including relevant ...
    • Does the marine biosphere mix the ocean? 

      Dewar, William K.; Bingham, Rory J.; Iverson, R. L.; Nowacek, Douglas P.; St. Laurent, Louis C.; Wiebe, Peter H. (Sears Foundation for Marine Research, 2006-07)
      Ocean mixing is thought to control the climatically important oceanic overturning circulation. Here we argue the marine biosphere, by a mechanism like the bioturbation occurring in marine sediments, mixes the oceans as ...
    • Domains of depleted mantle : new evidence from hafnium and neodymium isotopes 

      Salters, Vincent J. M.; Mallick, Soumen; Hart, Stanley R.; Langmuir, Charles H.; Stracke, Andreas (American Geophysical Union, 2011-08-02)
      Isotope systematics of basalts provide information on the distribution of mantle components and the length scale of mantle heterogeneity. To obtain this information, high data and sampling density are crucial. We present ...
    • Dominant run-length method for image classification 

      Tang, Xiaoou (Woods Hole Oceanographic Institution, 1997-06)
      In this paper, we develop a new run-length texture feature extraction algorithm that significantly improves image classification accuracy over traditional techniques. By directly using part or all of the run-length matrix ...
    • Double diffusion in oceanography : proceedings of a meeting September 26-29, 1989 

      Schmitt, Raymond W. (Woods Hole Oceanographic Institution, 1991-07)
      A meeting to review research progress on double-diffusive phenomena in the ocean was held September 26-29, 1989, at the Woods Hole Oceanographic Institution. Twenty-five oral presentations were made and a number of ...
    • A double-diffusive interface tank for dynamic-response studies 

      Schmitt, Raymond W.; Millard, Robert C.; Toole, John M.; Wellwood, W. David (Sears Foundation for Marine Research, 2005-01)
      A large tank capable of long-term maintenance of a sharp temperature-salinity interface has been developed and applied to measurements of the dynamical response of oceanographic sensors. A two-layer salt-stratified system ...
    • Double-diffusive processes : 1996 Summer Study Program in Geophysical Fluid Dynamics 

      Meacham, Stephen P.; Tucholke, Dacia (Woods Hole Oceanographic Institution, 1997-07)
      The physics of double diffusion and the role that it plays in the ocean provided the central theme for the 1996 summer program in Geophysical Fluid Dynamics at the Woods Hole Oceanographic Institution. Lectures and seminars ...
    • Downward continued multichannel seismic refraction analysis of Atlantis Massif oceanic core complex, 30°N, Mid-Atlantic Ridge 

      Henig, A. S.; Blackman, Donna K.; Harding, Alistair J.; Canales, J. Pablo; Kent, Graham M. (American Geophysical Union, 2012-05-19)
      Detailed seismic refraction results show striking lateral and vertical variability of velocity structure within the Atlantis Massif oceanic core complex (OCC), contrasting notably with its conjugate ridge flank. Multichannel ...
    • Drag coefficients of vibrating synthetic rope 

      Charnews, Daniel Paul (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1971-09)
      The drag, amplitude, frequency tension, diameter and length of synthetic ropes vibrating because of vortex-induced forces, and net vibrating at different tensions were measured. Photographs were taken of the vortices. Drag ...
    • Drag of suction cup tags on swimming animals : modeling and measurement 

      Shorter, K. Alex; Murray, Mark M.; Johnson, Mark P.; Moore, Michael J.; Howle, Laurens E. (John Wiley & Sons, 2013-11-12)
      Bio-logging tags are widely used to study the behavior and movements of marine mammals with the tacit assumption of little impact to the animal. However, tags on fast-swimming animals generate substantial hydrodynamic ...
    • Drawings and descriptions of some deep-sea copepods living above the Guaymas Basin hydrothermal vent field 

      Copley, Nancy J.; Wiebe, Peter H. (Woods Hole Oceanographic Institution, 1990-04)
      This report includes brief descriptions and illustrations of some of the copepods found in two bathypelagic MOCNESS samples. The MOCNESS was towed horizontally at an altitude of 100-200 m above the bottom in waters 1900 ...
    • Drift and mixing under the ocean surface : a coherent one-dimensional description with application to unstratified conditions 

      Rascle, Nicolas; Ardhuin, Fabrice; Terray, Eugene A. (American Geophysical Union, 2006-03-24)
      Waves have many effects on near-surface dynamics: Breaking waves enhance mixing, waves are associated with a Lagrangian mean drift (the Stokes drift), waves act on the mean flow by creating Langmuir circulations and a ...
    • Drifter studies in warm core rings 

      Tynan, Cynthia T.; Hooker, Stanford B. (Woods Hole Oceanographic Institution, 1984-04)
      The results of multiple deployments of surface drifters in warm core rings of the Gulf Stream are presented. Four satellite drifters (tracked by the Argos system) were deployed on nine separate occasions and two ...
    • Drifter-based estimate of the 5 year dispersal of Fukushima-derived radionuclides 

      Rypina, Irina I.; Jayne, Steven R.; Yoshida, Sachiko; Macdonald, Alison M.; Buesseler, Ken O. (John Wiley & Sons, 2014-11-28)
      Employing some 40 years of North Pacific drifter-track observations from the Global Drifter Program database, statistics defining the horizontal spread of radionuclides from Fukushima nuclear power plant into the Pacific ...
    • Drilling constraints on lithospheric accretion and evolution at Atlantis Massif, Mid-Atlantic Ridge 30°N 

      Blackman, Donna K.; Ildefonse, Benoit; John, Barbara E.; Ohara, Y.; Miller, D. J.; Abe, N.; Abratis, M.; Andal, E. S.; Andreani, M.; Awaji, S.; Beard, J. S.; Brunelli, D.; Charney, A. B.; Christie, D. M.; Collins, John A.; Delacour, A. G.; Delius, H.; Drouin, M.; Einaudi, F.; Escartin, Javier E.; Frost, B. R.; Fruh-Green, G. L.; Fryer, P. B.; Gee, Jeffrey S.; Grimes, C. B.; Halfpenny, A.; Hansen, H.-E.; Harris, Amber C.; Tamura, A.; Hayman, Nicholas W.; Hellebrand, Eric; Hirose, T.; Hirth, Greg; Ishimaru, S.; Johnson, Kevin T. M.; Karner, G. D.; Linek, M.; MacLeod, Christopher J.; Maeda, J.; Mason, O..U.; McCaig, A. M.; Michibayashi, K.; Morris, A.; Nakagawa, T.; Nozaka, T.; Rosner, Martin; Searle, Roger C.; Suhr, G.; Tominaga, Masako; von der Handt, A.; Yamasaki, T.; Zhao, X. (American Geophysical Union, 2011-07-19)
      Expeditions 304 and 305 of the Integrated Ocean Drilling Program cored and logged a 1.4 km section of the domal core of Atlantis Massif. Postdrilling research results summarized here constrain the structure and lithology ...
    • Drilling the oceanic lower crust and mantle : a global strategy for exploring the deep oceanic crust and mantle in the 1990's 

      Workshop on Drilling the Oceanic Lower Crust and Mantle (Woods Hole Oceanographic Institution, 1989-03)
      This workshop was convened to follow up on the Second Conference on Scientific Ocean Drilling (COSOD II) to devise a specific plan for deep crustal and mantle drilling over the next decade. Since COSOD II, however, there ...
    • Drivers and uncertainties of future global marine primary production in marine ecosystem models 

      Laufkotter, Charlotte; Vogt, Meike; Gruber, Nicolas; Aita-Noguchi, M.; Aumont, Olivier; Bopp, Laurent; Buitenhuis, Erik T.; Doney, Scott C.; Dunne, John P.; Hashioka, Taketo; Hauck, Judith; Hirata, Takafumi; John, Jasmin G.; Le Quere, Corinne; Lima, Ivan D.; Nakano, Hideyuki; Seferian, Roland; Totterdell, Ian J.; Vichi, Marcello; Volker, Chrisoph (Copernicus Publications on behalf of the European Geosciences Union, 2015-12-07)
      Past model studies have projected a global decrease in marine net primary production (NPP) over the 21st century, but these studies focused on the multi-model mean rather than on the large inter-model differences. Here, ...
    • Drivers of spring and summer variability in the coastal ocean offshore of Cape Cod, MA 

      Kirincich, Anthony R.; Gawarkiewicz, Glen G. (John Wiley & Sons, 2016-03-19)
      The drivers of spring and summer variability within the coastal ocean east of Cape Cod, Massachusetts, a critical link between the Gulf of Maine and Mid-Atlantic Bight, are investigated using 2 years of shipboard and moored ...
    • Drought, agricultural adaptation, and sociopolitical collapse in the Maya Lowlands 

      Douglas, Peter M. J.; Pagani, Mark; Canuto, Marcello A.; Brenner, Mark; Hodell, David A.; Eglinton, Timothy I.; Curtis, Jason H. (2014-10)
      Paleoclimate records indicate a series of severe droughts was associated with societal collapse of the Classic Maya during the Terminal Classic period (approximately 800 to 950 CE). Evidence for drought largely derives ...