Now showing items 560-579 of 940

    • Models of harmful algal blooms : conceptual, empirical, and numerical approaches 

      McGillicuddy, Dennis J. (2010-12-08)
      Now is an historic time in the field of harmful algal bloom (HAB) science. HAB problems are growing worldwide, and society’s need for understanding these phenomena is more pressing than ever. Technological advances have ...
    • Mooring design using wave-state estimate from the Southern Ocean 

      Schulz, E. W.; Grosenbaugh, Mark A.; Pender, L.; Greenslade, D. J. M.; Trull, Thomas W. (American Meteorological Society, 2011-10-01)
      The Southern Ocean Flux Station was deployed near 47°S, 140°E. The extreme wind and wave conditions at this location require appropriate mooring design, which includes dynamic fatigue analysis and static analysis. An ...
    • Mortality of fish subjected to explosive shock as applied to oil well severance on Georges Bank 

      Baxter, Lincoln; Hays, Earl E.; Hampson, George R.; Backus, Richard H. (Woods Hole Oceanographic Institution, 1982-12)
      A very extensive bibliography of papers on underwater explosions and their effects on marine life has been collected and summarized. When exposed to blast effects, vertebrates with swim bladders or lungs that contain ...
    • Motion sensitivity of flame ionization detectors 

      Gularte, Ronald Carl (Woods Hole Oceanographic Institution, 1972-05)
      A portable gas chromatograph, using a single flame ionization detector, was constructed. The unit was tested for response to surge, sway and heave accelerations up to 0.3g. Also the detector's response was studied for ...
    • Multicarrier communication over underwater acoustic channels with nonuniform Doppler shifts 

      Li, Baosheng; Zhou, Shengli; Stojanovic, Milica; Freitag, Lee E.; Willett, Peter (IEEE, 2008-04)
      Underwater acoustic (UWA) channels are wideband in nature due to the small ratio of the carrier frequency to the signal bandwidth, which introduces frequency-dependent Doppler shifts. In this paper, we treat the channel ...
    • Multichannel detection for wideband underwater acoustic CDMA communications 

      Stojanovic, Milica; Freitag, Lee E. (IEEE, 2006-07)
      Direct-sequence (DS) code-division multiple access (CDMA) is considered for future wideband mobile underwater acoustic networks, where a typical configuration may include several autonomous underwater vehicles (AUVs) ...
    • Multichannel maximum entropy method of spectral analysis applied to offshore structures 

      Briggs, Michael Jeffrey (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1981-06)
      The multichannel Maximum Entropy Method (MEM) of spectral analysis is developed and applied in the dynamic analysis of offshore structures. Two different algorithms are implemented and compared with the conventional ...
    • Multipath time-delay estimation via the EM algorithm 

      Feder, Meir; Weinstein, Ehud (Woods Hole Oceanographic Institution, 1987-01)
      We consider the application of the EM algorithm to the multipath time delay estimation problem. The algorithm is developed for the case of deterministic (known) signals, as well as for the case of wide-sense stationary ...
    • Multiple convergence zone acoustic telemetry feasibility test report 

      Catipovic, Josko A.; von der Heydt, Keith; Merriam, John Stevens; Sandsmark, Geir Helge (Woods Hole Oceanographic Institution, 1991-11)
      This report describes a multiple CZ acoustic telemetry experiment conducted off the coast of California 1/28/90-2/2/90. The goal was to design a maximally robust high speed underwater modem suitable for data telemetry for ...
    • Multipurpose acoustic networks in the integrated Arctic Ocean observing system 

      Mikhalevsky, Peter N.; Sagen, Hanne; Worcester, Peter F.; Baggeroer, Arthur B.; Orcutt, John A.; Moore, Sue E.; Lee, Craig M.; Vigness-Raposa, Kathleen J.; Freitag, Lee E.; Arrott, Matthew; Atakan, Kuvvet; Beszczynska-Moller, Agnieszka; Duda, Timothy F.; Dushaw, Brian D.; Gascard, Jean-Claude; Gavrilov, Alexander N.; Keers, Henk; Morozov, Andrey K.; Munk, Walter H.; Rixen, Michel; Sandven, Stein; Skarsoulis, Emmanuel; Stafford, Kathleen M.; Vernon, Frank L.; Yuen, Mo Yan (Arctic Institute of North America, 2015)
      The dramatic reduction of sea ice in the Arctic Ocean will increase human activities in the coming years. This activity will be driven by increased demand for energy and the marine resources of an Arctic Ocean accessible ...
    • Multisensor modeling underwater with uncertain information 

      Stewart, W. Kenneth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-07-05)
      This thesis develops an approach to the construction of multidimensional stochastic models for intelligent systems exploring an underwater environment. The important characteristics shared by such applications are: ...
    • The N456 Navigator system 

      Abrams, Lane J. (Woods Hole Oceanographic Institution, 2009-01)
      The N456 Navigator has been developed to assist in Long Baseline (LBL) acoustic navigation. Its two basic functions are generation of acoustic signals, and receipt and timing of returns. When combined with the new dsnav ...
    • Navigation and manipulation for autonomous underwater dismantling of offshore structures 

      Welch, Christian L. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2015-09)
      The dismantling of offshore structures, known as decommissioning, is a complex task in the oil and gas industry, driven by strict environmental standards. As the environments in which decommissioning is necessary become ...
    • Navigation for the Derbyshire Phase2 Survey 

      Lerner, Steven A.; Yoerger, Dana R.; Crook, T. (Woods Hole Oceanographic Institution, 1999-04)
      In 1997, the Deep Submergence Operations Group of the Woods Hole Oceanographic Institution conducted an underwater forensic survey of the UK bulk-carrier MV Derbyshire with a suite of underwater vehicles. This report ...
    • Navigational infrastructure at the East Pacific Rise 9°50′N area following the 2005–2006 eruption : seafloor benchmarks and near-bottom multibeam surveys 

      Soule, Samuel A.; Ferrini, Vicki L.; Kinsey, James C.; Fornari, Daniel J.; Sellers, Cynthia J.; White, Scott M.; Von Damm, Karen L.; Carbotte, Suzanne M. (American Geophysical Union, 2008-11-06)
      Four seafloor benchmarks were deployed with ROV Jason2 at frequently visited areas along the northern East Pacific Rise (NEPR) ridge crest near 9°50′N, within the Ridge2000 EPR integrated study site (ISS) bull's eye. When ...
    • Near-bottom circulation and dispersion of sediment containing Alexandrium fundyense cysts in the Gulf of Maine during 2010–2011 

      Aretxabaleta, Alfredo L.; Butman, Bradford; Signell, Richard P.; Dalyander, P. Soupy; Sherwood, Christopher R.; Sheremet, Vitalii A.; McGillicuddy, Dennis J. (Elsevier, 2013-12-13)
      The life cycle of Alexandrium fundyense in the Gulf of Maine includes a dormant cyst stage that spends the winter predominantly in the bottom sediment. Wave-current bottom stress caused by storms and tides induces resuspension ...
    • Near-surface ocean temperature 

      Ward, Brian (American Geophysical Union, 2006-02-11)
      The first open ocean deployment of the Skin Depth Experimental Profiler (SkinDeEP) was from the R/V Melville in the Gulf of California during the Marine Optical Characterization Experiment (MOCE–5). SkinDeEP is an ...
    • Net community production of oxygen derived from in vitro and in situ 1-D modeling techniques in a cyclonic mesoscale eddy in the Sargasso Sea 

      Mourino-Carballido, Beatriz; Anderson, Laurence A. (Copernicus Publications on behalf of the European Geosciences Union, 2009-08-26)
      It has been proposed that the disagreement traditionally reported between in vitro incubation and in situ estimates of oxygen net community production (NCP) could be explained, at least partially, by undersampling episodic ...
    • A new approach to estimation of global air-sea gas transfer velocity fields using dual-frequency altimeter backscatter 

      Frew, Nelson M.; Glover, David M.; Bock, Erik J.; McCue, Scott J. (American Geophysical Union, 2007-11-03)
      A new approach to estimating air-sea gas transfer velocities based on normalized backscatter from the dual-frequency TOPEX and Jason-1 altimeters is described. The differential scattering of Ku-band (13.6 GHz) and C-band ...
    • New broadband methods for resonance classification and high-resolution imagery of fish with swimbladders using a modified commercial broadband echosounder 

      Stanton, Timothy K.; Chu, Dezhang; Jech, J. Michael; Irish, James D. (Oxford University Press, 2010-01-05)
      A commercial acoustic system, originally designed for seafloor applications, has been adapted for studying fish with swimbladders. The towed system contains broadband acoustic channels collectively spanning the frequency ...