Now showing items 2691-2710 of 8057

    • Flocs, flows, and mechanisms decoupling larval supply from settlement 

      Zimmer, Cheryl Ann; Starczak, Victoria R.; Zimmer, Richard K. (Association for the Sciences of Limnology and Oceanography, 2012-07)
      Larval supply, settlement (24 h), and recruitment were measured simultaneously with flow and flocculated particulates (flocs) in a muddy, coastal embayment. Fortuitous observations indicated that flocs drifting above the ...
    • Flood dispersal and deposition by near-bed gravitational sediment flows and oceanographic transport : a numerical modeling study of the Eel River shelf, northern California 

      Harris, Courtney K.; Traykovski, Peter A.; Geyer, W. Rockwell (American Geophysical Union, 2005-09-30)
      A large flood of the Eel River, northern California, created a thick sediment deposit between water depths of 50 and 70 m in January 1997. The freshwater plume, however, confined sediment delivery to water depths shallower ...
    • Florida Current surface temperature and salinity variability during the last millennium 

      Lund, David C.; Curry, William B. (American Geophysical Union, 2006-05-05)
      The salinity and temperature of the Florida Current are key parameters affecting the transport of heat into the North Atlantic, yet little is known about their variability on centennial time scales. Here we report replicated, ...
    • Florida Straits density structure and transport over the last 8000 years 

      Lynch-Stieglitz, Jean; Curry, William B.; Lund, David C. (American Geophysical Union, 2009-09-01)
      The density structure across the Florida Straits is reconstructed for the last 8000 years from oxygen isotope measurements on foraminifera in sediment cores. The oxygen isotope measurements suggest that the density contrast ...
    • Flow and geochemistry of groundwater beneath a back-barrier lagoon : the subterranean estuary at Chincoteague Bay, Maryland, USA 

      Bratton, John F.; Bohlke, John K.; Krantz, David E.; Tobias, Craig R. (Elsevier B.V., 2009-01-21)
      To better understand large-scale interactions between fresh and saline groundwater beneath an Atlantic coastal estuary, an offshore drilling and sampling study was performed in a large barrier-bounded lagoon, Chincoteague ...
    • Flow and hydraulics near the sill of Hood Canal, a strongly sheared, continuously stratified fjord 

      Gregg, M. C.; Pratt, Lawrence J. (American Meteorological Society, 2010-05)
      Hood Canal, a long fjord in Washington State, has strong tides but limited deep-water renewal landward of a complex constriction. Tide-resolving hydrographic and velocity observations at the constriction, with a depth-cycling ...
    • Flow and nutrient dynamics in a subterranean estuary (Waquoit Bay, MA, USA) : field data and reactive transport modeling 

      Spiteri, Claudette; Slomp, Caroline P.; Charette, Matthew A.; Tuncay, Kagan; Meile, Christof (2008-04-25)
      A two-dimensional (2D) reactive transport model is used to investigate the controls on nutrient (NO3-, NH4+, PO4) dynamics in a coastal aquifer. The model couples density dependent flow to a reaction network which includes ...
    • Flow and sediment properties influencing erosion of fine-grained marine sediments : sea floor and laboratory experiments 

      Young, Robert Alexander (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1975-09)
      Erosion processes involving fine-grained marine sediments were studied by using an in situ flume to erode undisturbed bottom sediments on the sea floor in Buzzards Bay, a shallow marine embayment off the Massachusetts coast. ...
    • Flow and skin friction over natural rough beds 

      Paola, Christopher (Woods Hole Oceanographic Institution, 1983-06)
      The first of two sets of data reported here, measured over two-dimensional immobile current ripples, comprises skin-friction time series at four streamwise positions and velocity profiles measured to within a few mm of ...
    • Flow convergence caused by a salinity minimum in a tidal channel 

      Warner, John C.; Schoellhamer, David H.; Burau, Jon R.; Schladow, S. Geoffrey (CALFED Science Program, the California Digital Library eScholarship Repository, and the University of California—Davis John Muir Institute of the Environment., 2006-12)
      Residence times of dissolved substances and sedimentation rates in tidal channels are affected by residual (tidally averaged) circulation patterns. One influence on these circulation patterns is the longitudinal density ...
    • Flow distortion investigation of wind velocity perturbations for two ocean meteorological platforms 

      Emond, Marc; Vandemark, Doug; Forsythe, James; Plueddemann, Albert J.; Farrar, J. Thomas (Woods Hole Oceanographic Institution, 2012-03)
      A computational fluid dynamics (CFD) study was performed of the wind flow around two ocean buoys used to collect meteorological data from sensors mounted on the buoy tower. The CFD approach allowed wind velocity perturbations ...
    • Flow disturbances generated by feeding and swimming zooplankton 

      Kiørboe, Thomas; Jiang, Houshuo; Goncalves, Rodrigo Javier; Nielsen, Lasse Tor; Wadhwa, Navish (2014-03)
      Interactions between planktonic organisms, such as detection of prey, predators, and mates, are often mediated by fluid signals. Consequently, many plankton predators perceive their prey from the fluid disturbances that ...
    • Flow of supersonic jets across flat plates : implications for ground-level flow from volcanic blasts 

      Orescanin, Mara M.; Prisco, David; Austin, Joanna M.; Kieffer, Susan W. (John Wiley & Sons, 2014-04-24)
      We report on laboratory experiments examining the interaction of a jet from an overpressurized reservoir with a canonical ground surface to simulate lateral blasts at volcanoes such as the 1980 blast at Mount St. Helens. ...
    • Flow over finite isolated topography 

      Thompson, LuAnne (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-11)
      One and two layer models are used to study flow over axisymmetric isolated topography. Inviscid or nearly inviscid flow in which non-linear effects have order one importance is considered, and both the effects of β and ...
    • Flow-induced channelization in a porous medium 

      Mahadevan, Amala; Orpe, A. V.; Kudrolli, A.; Mahadevan, L. (2012-05-17)
      Flow through a saturated, granular, porous medium can lead to internal erosion, preferential flow enhancement and the formation of channels within the bulk of the medium. We examine this phenomenon using a combination ...
    • Flow-weighted values of runoff tracers (δ18O, DOC, Ba, alkalinity) from the six largest Arctic rivers 

      Cooper, Lee W.; McClelland, James W.; Holmes, Robert M.; Raymond, Peter A.; Gibson, J. J.; Guay, Christopher K.; Peterson, Bruce J. (American Geophysical Union, 2008-09-20)
      We present new flow-weighted data for δ 18OH2O, dissolved organic carbon (DOC), dissolved barium and total alkalinity from the six largest Arctic rivers: the Ob', Yenisey, Lena, Kolyma, Yukon and Mackenzie. These data, ...
    • Fluctuation of 400-Hz sound intensity in the 2001 ASIAEX South China Sea experiment 

      Duda, Timothy F.; Lynch, James F.; Newhall, Arthur E.; Wu, Lixin; Chiu, Ching-Sang (IEEE, 2004-10)
      We present analyses of fluctuations seen in acoustic signals transmitted by two 400-Hz sources moored as part of the ASIAEX 2001 South China Sea (SCS) experiment. One source was near the bottom in 350-m deep water 31.3 km ...
    • Fluctuations in export productivity over the last century from sediments of a southern Chilean fjord (44°S) 

      Sepulveda, Julio; Pantoja, Silvio; Hughen, Konrad A.; Lange, Carina B.; Gonzalez, Fidelina; Munoz, Praxedes; Rebolledo, Lorena; Castro, Rodrigo; Contreras, Sergio; Avila, Alejandro; Rossel, Pamela; Lorca, Gisella; Salamanca, Marco; Silva, Nelson (2005-07-08)
      Here we present the first reconstruction of changes in surface primary production during the last century from the Puyuhuapi fjord in southern Chile, using a variety of parameters (diatoms, biogenic silica, total organic ...
    • The fluid dynamics of swimming by jumping in copepods 

      Jiang, Houshuo; Kiørboe, Thomas (2010-11-04)
      Copepods swim either continuously by vibrating their feeding appendages or erratically by repeatedly beating their swimming legs resulting in a series of small jumps. The two swimming modes generate different hydrodynamic ...
    • Fluid flow and sound generation at hydrothermal vent fields 

      Little, Sarah A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1988-04-08)
      Several experiments are presented in this thesis which examine methods to measure and monitor fluid flow from hydrothermal vent fields. Simultaneous velocity, temperature, and conductivity data were collected in the ...