Now showing items 2686-2705 of 5618

    • Isotopic, geophysical and biogeochemical investigation of submarine groundwater discharge : IAEA-UNESCO intercomparison exercise at Mauritius Island 

      Povinec, Pavel P.; Burnett, William C.; Beck, A.; Bokuniewicz, H. J.; Charette, Matthew A.; Gonneea, Meagan E.; Groening, M.; Ishitobi, T.; Kontar, E.; Kwong, L. Liong Wee; Marie, D. E. P.; Moore, Willard S.; Oberdorfer, J. A.; Peterson, R.; Ramessur, R.; Rapaglia, J.; Stieglitz, T.; Top, Zafer (2011-09)
      Submarine groundwater discharge (SGD) into a shallow lagoon on the west coast of Mauritius Island (Flic-en-Flac) was investigated using radioactive (3H, 222Rn, 223Ra, 224Ra, 226Ra, 228Ra) and stable (2H, 18O) isotopes and ...
    • The Jason II virtual control van system, data acquisition system, web-based event logger, and SeaNet 

      Lerner, Steven A.; Maffei, Andrew R. (Woods Hole Oceanographic Institution, 2002-12)
      Scientific underwater remotely operated vehicles (ROVs) collect data from multiple video cameras and scientific instruments. This integrated information is often only available in an ROV control-van during operations. ...
    • The JASON remotely operated vehicle system 

      Ballard, Robert D. (Woods Hole Oceanographic Institution, 1993-02)
      The JASON remotely operated vehicle (ROV) system has been under development for the last decade. After a number of engineering test cruises, including the discovery of the R.M.S. Titanic and the German Battleship Bismarck, ...
    • JeDI: Jellyfish Database Initiative 

      Condon, Robert H.; Lucas, Cathy H.; Duarte, Carlos M.; Pitt, Kylie A.; Haddock, Steven H. D.; Madin, Laurence P.; Brodeur, Richard D.; Sutherland, Kelly R.; Mianzan, Hermes W.; Purcell, Jennifer E.; Decker, Mary Beth; Uye, Shin-Ichi; Malej, Alenka; Bogeberg, Molly; Everett, John T.; Gibbons, Mark; Gonzalez, H.; Hay, S.; Hensche, N.; Hobson, R. J.; Kingsford, Michael J.; Kremer, P.; Lehtiniemi, Maiju; Ohman, Mark; Rissik, D.; Sheard, K.; Suthers, Iain; Coleman, N.; Costello, John H.; Gershwin, L. A.; Graham, William M.; Robinson, Kelly L.; Richardson, T. M.; Giesecke, R.; Gorsky, Gabriel; Greve, Wulf; Halsband-Lenk, C.; Hays, Graeme; Hobson, V.; Klein, David; Lebrato, Mario; Loveridge, Jan; Martens, P.; Milos, C.; Perry, G.; Stemmann, L.; Sullivan, Barbara; Walker, T.; Schildhauer, Mark; Regetz, J. (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2015-03-09)
      The Jellyfish Database Initiative (JeDI) is a scientifically-coordinated global database dedicated to gelatinous zooplankton (members of the Cnidaria, Ctenophora and Thaliacea) and associated environmental data. The database ...
    • A joint Monte Carlo analysis of seafloor compliance, Rayleigh wave dispersion and receiver functions at ocean bottom seismic stations offshore New Zealand 

      Ball, Justin S.; Sheehan, Anne F.; Stachnik, Joshua C.; Lin, Fan-Chi; Collins, John A. (John Wiley & Sons, 2014-12-17)
      Teleseismic body-wave imaging techniques such as receiver function analysis can be notoriously difficult to employ on ocean-bottom seismic data due largely to multiple reverberations within the water and low-velocity ...
    • Jurassic zircons from the Southwest Indian Ridge 

      Cheng, Hao; Zhou, Huaiyang; Yang, Qunhui; Zhang, Lingmin; Ji, Fuwu; Dick, Henry J. B. (Nature Publishing Group, 2016-05-17)
      The existence of ancient rocks in present mid-ocean ridges have long been observed but received less attention. Here we report the discovery of zircons with both reasonably young ages of about 5 Ma and abnormally old ages ...
    • Juvenile fish assemblages collected on unconsolidated sediments of the southeast United States continental shelf 

      Walsh, Harvey J.; Marancik, Katrin E.; Hare, Jonathan A. (U.S. Department of Commerce, NOAA, 2006)
      Patterns were investigated in juvenile fish use of unconsolidated sediments on the southeast United States continental shelf off Georgia. Juvenile fish and environmental data were sampled at ten stations along a 110-km ...
    • K-distribution fading models for Bayesian estimation of an underwater acoustic channel 

      Laferriere, Alison Beth (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2011-02)
      Current underwater acoustic channel estimation techniques generally apply linear MMSE estimation. This approach is optimal in a mean square error sense under the assumption that the impulse response fluctuations are well ...
    • The Kallisti Limnes, carbon dioxide-accumulating subsea pools 

      Camilli, Richard; Nomikou, Paraskevi; Escartin, Javier E.; Ridao, Pere; Mallios, Angelos; Kilias, Stephanos P.; Argyraki, Ariadne; Andreani, Muriel; Ballu, Valerie; Campos, Ricard; Deplus, Christine; Gabsi, Taoufic; Garcia, Rafael; Gracias, Nuno; Hurtos, Natalia; Magi, Lluis; Mevel, Catherine; Moreira, Manuel; Palomeras, Narcis; Pot, Olivier; Ribas, David; Ruzie, Lorraine; Sakellariou, Dimitris (Nature Publishing Group, 2015-07-16)
      Natural CO2 releases from shallow marine hydrothermal vents are assumed to mix into the water column, and not accumulate into stratified seafloor pools. We present newly discovered shallow subsea pools located within the ...
    • Kalman filter estimation of underwater vehicle position and attitude using Doppler velocity aided inertial motion unit 

      Leader, Daniel Eugene (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-09)
      This Paper explores the use of an extended Kalman filter to provide real-time estimates of underwater vehicle position and attitude. The types of previously available sensors are detailed including strapdown accelerometers, ...
    • KAPEX RAFOS float data report 1997-1999 part B : float trajectories at 750 m in the Benguela Current 

      Richardson, Philip L.; Pacheco, M. A.; Wooding, Christine M. (Woods Hole Oceanographic Institution, 2003-06)
      Thirty-two RAFOS floats were launched at the depth of intermediate water, near 750 m, in the Benguela Current along 30S and its extension along 7W. The floats were tracked acoustically for two years during 1997–1999. ...
    • The Keck Carbon Cycle AMS Laboratory, University of California, Irvine : status report 

      Beverly, Robert K.; Beaumont, Will; Tauz, Denis; Ormsby, Kaelyn M.; von Reden, Karl F.; Santos, Guaciara M.; Southon, John R. (Dept. of Geosciences, University of Arizona, 2010-08)
      We present a status report of the accelerator mass spectrometry (AMS) facility at the University of California, Irvine, USA. Recent spectrometer upgrades and repairs are discussed. Modifications to preparation laboratory ...
    • A key to the stromateoid fishes 

      Haedrich, Richard L.; Horn, Michael H. (Woods Hole Oceanographic Institution, 1969-09)
      Our primary purpose in preparing "A Key to the Stromateoid Fishes" is to provide field workers and curators with a convenient and concise aid for the identification of the diverse species in this somewhat difficult group ...
    • A key to the stromateoid fishes 

      Haedrich, Richard L.; Horn, Michael H. (Woods Hole Oceanographic Institution, 1972-03)
      Our primary purpose in preparing "A Key to the Stromateoid Fishes" is to provide field workers and curators with a convenient and concise aid for the identification of the diverse species in this somewhat difficult ...
    • Kinematic evaluation of end effector design 

      Edwards, Gary W. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
      The complex, many degree-of-freedom end effectors at the leading edge of technology would be unusable in the sea bottom research environment. Simpler designs are required to provide adequate reliability for subsea ...
    • The kinematics and dynamics of the New England continental shelf and shelf/slope front 

      Flagg, Charles Noel (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1977-04)
      A 37 day long field program was carried out in March 1974 on the New England continental shelf break to study the current and hydrographic structure and variability on the shelf and in the shelf/slope front. A second ...
    • Kinematics and energetics of the mesoscale mid-ocean circulation : MODE 

      Richman, James G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1976-09)
      The temporal and spatial variability of low frequency moored temperature and velocity observations, obtained as part of the Mid-Ocean Dynamics Experiment (MODE), are analyzed to study the kinematics and energetics of ...
    • Kinetic constraints on acylated homoserine lactone-based quorum sensing in marine environments 

      Hmelo, Laura R.; Van Mooy, Benjamin A. S. (Inter-Research, 2009-02-04)
      Quorum sensing (QS) via acylated homoserine lactones (AHLs) was discovered in the ocean, yet AHLs are expected to be very short-lived at seawater pH due to rapid abiotic degradation. Quorum quenching, the enzymatic degradation ...
    • Kinetic processes of mantle minerals 

      Koga, Kenneth T. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
      This dissertation discusses the experimental results designed to constrain the processes of MORB generation. The main focus of this study is to investigate the location and the related processes of the transformation ...
    • Kinetics of H2–O2–H2O redox equilibria and formation of metastable H2O2 under low temperature hydrothermal conditions 

      Foustoukos, Dionysis I.; Houghton, Jennifer L.; Seyfried, William E.; Sievert, Stefan M.; Cody, George D. (2010-07-23)
      Hydrothermal experiments were conducted to evaluate the kinetics of H2(aq) oxidation in the homogeneous H2-O2-H2O system at conditions reflecting subsurface/near-seafloor hydrothermal environments (55-250 oC and 242-497 ...