Now showing items 266-285 of 4922

  • Arctic Ocean basin liquid freshwater storage trend 1992–2012 

    Rabe, Benjamin; Karcher, Michael; Kauker, Frank; Schauer, Ursula; Toole, John M.; Krishfield, Richard A.; Pisarev, Sergey; Kikuchi, Takashi; Su, J. (John Wiley & Sons, 2014-02-12)
    Freshwater in the Arctic Ocean plays an important role in the regional ocean circulation, sea ice, and global climate. From salinity observed by a variety of platforms, we are able, for the first time, to estimate a ...
  • Arctic Ocean circulation in an idealized numerical model 

    Sugimura, Peter Joseph (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2008-09)
    The mid-to-deep Arctic Ocean is generally characterized by a cyclonic circulation, contained along shelves and ridges. Here we analyze the general Arctic circulation using an idealized numerical model consisting of a ...
  • Arctic Ocean warming contributes to reduced polar ice cap 

    Polyakov, Igor V.; Timokhov, Leonid A.; Alexeev, Vladimir A.; Bacon, Sheldon; Dmitrenko, Igor A.; Fortier, Louis; Frolov, Ivan E.; Gascard, Jean-Claude; Hansen, Edmond; Ivanov, Vladimir V.; Laxon, Seymour W.; Mauritzen, Cecilie; Perovich, Donald K.; Shimada, Koji; Simmons, Harper L.; Sokolov, Vladimir T.; Steele, Michael; Toole, John M. (American Meteorological Society, 2010-12)
    Analysis of modern and historical observations demonstrates that the temperature of the intermediate-depth (150–900 m) Atlantic water (AW) of the Arctic Ocean has increased in recent decades. The AW warming has been uneven ...
  • Arctic remote autonomous measurement platform post CEAREX engineering report 

    Peal, Kenneth R. (Woods Hole Oceanographic Institution, 1990-11)
    A series of instrumented Arctic buoys has been developed which is designed to be deployed in pack ice to measure and record data from meteorological and ocean sensors as well as from an accelerometer package inside the ...
  • Arc–continent collision and the formation of continental crust : a new geochemical and isotopic record from the Ordovician Tyrone Igneous Complex, Ireland 

    Draut, Amy E.; Clift, Peter D.; Amato, Jeffrey M.; Blusztajn, Jerzy S.; Schouten, Hans A. (2008-06-23)
    Collisions between oceanic island-arc terranes and passive continental margins are thought to have been important in the formation of continental crust throughout much of Earth’s history. Magmatic evolution during this ...
  • Are any coastal internal tides predictable? 

    Nash, Jonathan D.; Shroyer, Emily L.; Kelly, Samuel M.; Inall, Mark E.; Duda, Timothy F.; Levine, Murray D.; Jones, Nicole L.; Musgrave, Ruth C. (The Oceanography Society, 2012-06)
    Surface tides are the heartbeat of the ocean. Because they are controlled by Earth's motion relative to other astronomical objects in our solar system, surface tides act like clockwork and generate highly deterministic ebb ...
  • Are deep-ocean-generated surface-wave microseisms observed on land? 

    Bromirski, Peter D.; Stephen, Ralph A.; Gerstoft, Peter (John Wiley & Sons, 2013-07-25)
    Recent studies attribute land double-frequency (DF) microseism observations to deep water generation. Here we show that near-coastal generation is generally the dominant source region. This determination is based on ...
  • Are marine protected areas a red herring or fisheries panacea? 

    Kaiser, Michel J. (National Research Council Canada, 2005-05-31)
    Chronic failures in marine fisheries management have led some to suggest that marine protected areas (MPAs) are the solution to achieve sustainable fisheries. While such systems work for certain habitat-specific and nonmobile ...
  • Are there eco-metrics for fisheries? 

    Steele, John H. (2005-11-03)
    Ecosystem based management of marine resources is a worthy ideal. At present, however, the science is unable to measure and relate the fundamental concepts of diversity, productivity and resilience required for management ...
  • Area selection for diamonds using magnetotellurics : examples from southern Africa 

    Jones, Alan G.; Evans, Rob L.; Muller, Mark R.; Hamilton, Mark P.; Miensopust, Marion P.; Garcia, Xavier; Cole, Patrick; Ngwisanyi, Tiyapo; Hutchins, David; Fourie, C. J. S.; Jelsma, Hielke; Aravanis, Theo; Pettit, Wayne; Webb, Susan J.; Webb, Jan; Collins, Louise; Hogg, Colin; Horan, Clare; Spratt, Jessica; Wallace, Gerry; Chave, Alan D.; Cole, Janine; Stettler, Raimund; Tshoso, G.; Mountford, Andy; Cunion, Ed; Khoza, T. David; Share, Pieter-Ewald; SAMTEX Team (2009-06-05)
    Southern Africa, particularly the Kaapvaal Craton, is one of the world’s best natural laboratories for studying the lithospheric mantle given the wealth of xenolith and seismic data that exist for it. The Southern African ...
  • Argo array observation of ocean heat content changes induced by tropical cyclones in the north Pacific 

    Park, Jong Jin; Kwon, Young-Oh; Price, James F. (American Geophysical Union, 2011-12-16)
    In situ observations from the autonomous Argo float array are used to assess the basin-averaged ocean heat content change driven by tropical cyclones (TCs) in the North Pacific for 2000–2008. A new statistical approach ...
  • Argo Development Program : final report 

    Woods Hole Oceanographic Institution (Woods Hole Oceanographic Institution, 1986-06)
    The purpose of the contract was to develop and place into operational status a new, combined research/inspection unmanned vehicle system called ARGO/JASON. ARGO is a high altitude search and survey vehicle for use in deep ...
  • The Argo Program : observing the global ocean with profiling floats 

    Roemmich, Dean; Johnson, Gregory C.; Riser, Stephen C.; Davis, Russ E.; Gilson, John; Owens, W. Brechner; Garzoli, Silvia L.; Schmid, Claudia; Ignaszewski, Mark (Oceanography Society, 2009-06)
    The Argo Program has created the first global array for observing the subsurface ocean. Argo arose from a compelling scientific need for climate-relevant ocean data; it was made possible by technology development and ...
  • Aridification of the Indian subcontinent during the Holocene : implications for landscape evolution, sedimentation, carbon cycle, and human civilizations 

    Ponton, Camilo (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2012-06)
    The Indian monsoon affects the livelihood of over one billion people. Despite the importance of climate to society, knowledge of long-term monsoon variability is limited. This thesis provides Holocene records of monsoon ...
  • Array data acquisition with wireless LAN telemetry as applied to shallow water tomography in the Barents Sea 

    von der Heydt, Keith; Kemp, John N.; Lynch, James F.; Miller, J.; Chiu, Ching-Sang (Woods Hole Oceanographic Institution, 1992-12)
    This report describes the application of a new technique of digital radio telemetry, based on a recently available wireless Local Area Network Ethernet adapter, to the need for realtime transmission of data from a vertical ...
  • Array processing and forward modeling methods for the analysis of stiffened, fluid-loaded cylindrical shells 

    Bondaryk, Joseph E. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-03)
    This thesis investigates array processing and forward modeling methods for the analysis of experimental, structural acoustic data to understand wave propagation on fluid-loaded, elastic, cylindrical shells in the ...
  • Arsenate resistance in the unicellular marine diazotroph Crocosphaera watsonii 

    Dyhrman, Sonya T.; Haley, Sheean T. (Frontiers Media, 2011-10-25)
    The toxic arsenate ion can behave as a phosphate analog, and this can result in arsenate toxicity especially in areas with elevated arsenate to phosphate ratios like the surface waters of the ocean gyres. In these systems, ...
  • Ascent exhalations of Antarctic fur seals : a behavioural adaptation for breath-hold diving? 

    Hooker, Sascha K.; Miller, Patrick J. O.; Johnson, Mark P.; Cox, Oliver P.; Boyd, Ian L. (Royal Society, 2005-02-22)
    Novel observations collected from video, acoustic and conductivity sensors showed that Antarctic fur seals consistently exhale during the last 50–85% of ascent from all dives (10–160 m, n > 8000 dives from 50 seals). The ...
  • Ascidians at the Pacific and Atlantic entrances to the Panama Canal 

    Carman, Mary R.; Bullard, Stephan G.; Rocha, Rosana M.; Lambert, Gretchen; Dijkstra, Jennifer A.; Roper, James J.; Goodwin, Anne M.; Carman, Mimi M.; Vail, Elisabete M. (Regional Euro-Asian Biological Invasions Centre (REABIC), 2011-08-12)
    The Panama Canal region is susceptible to non-native species introductions due to the heavy international shipping traffic through the area. Ascidian introductions are occurring worldwide but little is known about ...
  • Aspects of the biogeochemistry of carbohydrates in aquatic environments 

    Mopper, Kenneth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1973-06)
    The goal of this thesis is to examine the distribution and diagenesis of carbohydrates in aquatic environments. The following questions are studied: what is the carbohydrate composition of sediment in different environments ...