Now showing items 2880-2899 of 5578

    • Mantle upwelling, melt generation, and magma transport beneath mid-ocean ridges 

      Magde, Laura S. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1997-03)
      The formation of new oceanic crust is the result of a complex geodynamic system in which mantle rises beneath spreading centers and undergoes decompression melting. The melt segregates from the matrix and is focused to ...
    • A manual for the removal, fixation and preservation of cetacean ears 

      Ketten, Darlene R.; Cramer, Scott R.; Arruda, Julie (Woods Hole Oceanographic Institution, 2007-01)
      This chapter is intended as an instructional guide for the removal, fixation and preservation of auditory system tissues of marine mammals. Each section describes procedures for a major ear type for marine mammals. The ...
    • Manus 2006 : hydrothermal systems in the Eastern Manus Basin: fluid chemistry and magnetic structure as guides to subseafloor processes 

      Tivey, Maurice A.; Bach, Wolfgang; Seewald, Jeffrey S.; Tivey, Margaret K.; Vanko, David A. (Woods Hole Oceanographic Institution, 2006)
      The hydrothermal systems in the Manus Basin of Papua New Guinea (PNG) were comprehensively investigated through a combination of sampling and mapping using the Remotely-Operated Vehicle (ROV) Jason, the autonomous ...
    • Map building fusing acoustic and visual information using autonomous underwater vehicles 

      Kunz, Clayton G.; Singh, Hanumant (2012-10)
      We present a system for automatically building 3-D maps of underwater terrain fusing visual data from a single camera with range data from multibeam sonar. The six-degree of freedom location of the camera relative to the ...
    • Mapping multiple gas/odor sources in an uncontrolled indoor environment using a Bayesian occupancy grid mapping based method 

      Ferri, Gabriele; Jakuba, Michael V.; Mondini, Alessio; Mattoli, Virgilio; Mazzolai, Barbara; Yoerger, Dana R.; Dario, Paolo (2011-06)
      In this paper we address the problem of autonomously localizing multiple gas/odor sources in an indoor environment without a strong airflow. To do this, a robot iteratively creates an occupancy grid map. The produced map ...
    • Mapping turbulent diffusivity associated with oceanic internal lee waves offshore Costa Rica 

      Fortin, Will F. J.; Holbrook, W. Steven; Schmitt, Raymond W. (Copernicus Publications on behalf of the European Geosciences Union, 2016-04-26)
      Breaking internal waves play a primary role in maintaining the meridional overturning circulation. Oceanic lee waves are known to be a significant contributor to diapycnal mixing associated with internal wave dissipation, ...
    • MapTool version 2 : user’s manual 

      Lemmond, Peter (Woods Hole Oceanographic Institution, 1994-05)
      MapTool is an interactive computer program for the display of common marine geophysical data. At present, the program displays isolines, color-filled contours, navigation tracklines, and navigated scalar values in a variety ...
    • Marginal sea overflows and the upper ocean interaction 

      Kida, Shinichiro; Yang, Jiayan; Price, James F. (American Meteorological Society, 2009-02)
      Marginal sea overflows and the overlying upper ocean are coupled in the vertical by two distinct mechanisms—by an interfacial mass flux from the upper ocean to the overflow layer that accompanies entrainment and by a ...
    • Marine animal sound classification 

      Fristrup, Kurt M.; Watkins, William A. (Woods Hole Oceanographic Institution, 1993-10)
      Software was developed to measure characteristics of marine animal sounds (AcouStat). These measurements proved effective for classifying sounds in several contexts: identifying species, quantifying the repertoire of a ...
    • Marine animal SOUND database 

      Watkins, William A.; Fristrup, Kurt M.; Daher, Mary Ann (Woods Hole Oceanographic Institution, 1991)
      The Marine Animal SOUND Database system encompasses (1) descriptive text databases cataoging the WHOI collection of underwater sound recordings from marine animal, (2) sets of files of digital sound sequences, (3) text ...
    • The marine biogeochemistry of dissolved and colloidal Iron 

      Fitzsimmons, Jessica N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-09)
      Iron is a redox active trace metal micronutrient essential for primary production and nitrogen acquisition in the open ocean. Dissolved iron (dFe) has extremely low concentrations in marine waters that can drive phytoplankton ...
    • The marine biogeochemistry of molybdenum 

      Tuit, Caroline Beth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-02)
      Prevailing wisdom holds that the vertical distribution of molybdenum (Mo) in the open ocean is conservative, despite Mo's important biological role and association with Mn oxides and anoxic sediments. Mo is used in both ...
    • The marine biogeochemistry of zinc isotopes 

      John, Seth G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-06)
      Zinc (Zn) stable isotopes can record information about important oceanographic processes. This thesis presents data on Zn isotopes in anthropogenic materials, hydrothermal fluids and minerals, cultured marine phytoplankton, ...
    • Marine biological diversity : report of a meeting of the Marine Biological Diversity Working Group 

      Eiswerth, Mark E. (Woods Hole Oceanographic Institution, 1990-03)
      On August 3 - 4, 1989, the Marine Policy Center of Woods Hole Oceanographic Institution hosted the initial meeting of the Marine Biological Diversity Working Group. The formation of this working group was fostered as part ...
    • Marine biotoxins and harmful algae : a national plan 

      Anderson, Donald M.; Galloway, Sylvia B.; Joseph, Jeanne D. (Woods Hole Oceanographic Institution, 1993-01)
      Marine biotoxins and harmful algae represent a significant and expanding threat to human health and fisheries resources throughout the U.S. This problem takes many forms, ranging from massive "red tides" or blooms of cells ...
    • The marine disposal of sewage sludge and dredge spoil in the waters of the New York Bight 

      Horne, Ralph A.; Mahler, A. J.; Rossello, R. C. (Woods Hole Oceanographic Institution, 1971-01-29)
      The dumping of sewer sludge and dredge spoil in the waters of the New York Bight and the effect of this waste disposal practice on the marine environment is reviewed. The. quantities and composition of these wastes is ...
    • Marine ecosystem dynamics and biogeochemical cycling in the Community Earth System Model [CESM1(BGC)] : comparison of the 1990s with the 2090s under the RCP4.5 and RCP8.5 scenarios 

      Moore, J. Keith; Lindsay, Keith; Doney, Scott C.; Long, Matthew C.; Misumi, Kazuhiro (American Meteorological Society, 2013-12-01)
      The authors compare Community Earth System Model results to marine observations for the 1990s and examine climate change impacts on biogeochemistry at the end of the twenty-first century under two future scenarios ...
    • The marine geochemistry of iron and iron isotopes 

      Bergquist, Bridget A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2004-09)
      This thesis addressed questions about the Fe cycle by measuring detailed profiles and transects of Fe species in the ocean and also by exploring the use of a new tracer of Fe, Fe isotopic fractionation. In the subtropical ...
    • The marine geochemistry of methane 

      Scranton, Mary Isabelle (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-08)
      In the highly productive coastal surface waters near Walvis Bay, methane is present in concentrations considerably above those which would be predicted from solubility equilibrium with the atmosphere. A one dimensional ...