McKee Theresa K.

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Theresa K.

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  • Technical Report
    A summary of historical SOFAR float data in the western North Atlantic 1972-81
    (Woods Hole Oceanographic Institution, 1986-07) McKee, Theresa K.
    SOFAR float observations from the years 1972 to 1981 have been edited and analyzed to·produce a uniform and error-free data set suitable for archiving. These data were collected from the western North Atlantic during three major experiments directed by H. T. Rossby of the .University of Rhode Island. The data are shown here in plots of the composite and individual trajectories, as time series plots of velocity components, and for the LDE floats, as time series plots of temperature, pressure, vertical velocity, and vertical displacement. These data comprise about 72 years of SOFAR float observations, and are a unique resource for Lagrangian studies of the North Atlantic circulation.
  • Technical Report
    Gulf Stream Recirculation Experiment (GUSREX) and line experiment SOFAR float data, 1980-1982
    (Woods Hole Oceanographic Institution, 1984-11) Kennelly, Maureen A. ; McKee, Theresa K.
    Thirty-nine neutrally buoyant SOFAR floats were tracked in the western North Atlantic at depths of 700 m and 2000 m. These floats were launched in an effort to measure the deep current structure of the Gulf Stream and its recirculation near 55°W. Three separate deployments were made in April and October 1980 and July 1981. The floats were tracked by means of moored autonomous listening stations. The basic data consist of float trajectories, and temperature, pressure, and velocity measurements along the trajectories. This report describes the GUSREX experiment and instrument performance. It presents plots illustrating the horizontal structure and scales of the general circulation in the Gulf Stream and its recirculation for the period October 1980 to May 1982.
  • Technical Report
    CLIMODE bobber data report : July 2005 - May 2009
    (Woods Hole Oceanographic Institution, 2010-03) Fratantoni, David M. ; McKee, Theresa K. ; Hodges, Benjamin A. ; Furey, Heather H. ; Lund, John M.
    This report summarizes direct observations of Eighteen Degree Water (EDW) subduction and dispersal within the subtropical gyre of the North Atlantic Ocean. Forty acoustically-tracked bobbing, profiling floats (“bobbers”) were deployed to study the formation and dispersal of EDW in the western North Atlantic. The unique bobber dataset described herein provides insight into the evolution of EDW by means of direct, eddy-resolving measurement of EDW Lagrangian dispersal pathways and stratification. Bobbers are modified Autonomous Profiling Explorer (APEX) profiling floats which actively servo their buoyancy control mechanism to follow a particular isothermal surface. The CLIVAR Mode Water Dynamics Experiment (CLIMODE) bobbers tracked the 18.5°C temperature surface for 3 days, then bobbed quickly between the 17°C and 19°C isotherms. This cycle was repeated for one month, after which each bobber profiled to 1000 m before ascending to the surface to transmit data. The resulting dataset (37/40 tracked bobbers; more than half still profiling as of January 2010) yields well-resolved trajectories, unprecedented velocity statistics in the core of the subducting and spreading EDW, and detailed information about the Lagrangian evolution of EDW thickness and vertical structure. This report provides an overview of the experimental procedure employed and summarizes the initial processing of the bobber dataset.
  • Technical Report
    SOFAR float Mediterranean outflow experiment data from the first year, 1984-1985
    (Woods Hole Oceanographic Institution, 1986-07) Price, James F. ; McKee, Theresa K. ; Valdes, James R. ; Richardson, Philip L. ; Armi, Laurence
    In October, 1984, the Woods Hole Oceanographic Institution SOFAR float group began a three-year long field program to observe the low frequency currents in the Canary Basin. The principal scientific goal was to learn how advection and diffusion by these currents determine the shape and amplitude of the Mediterranean salt tongue. Fourteen floats were launched at a depth of 1100 min a cluster centered on 32N, 24W, and seven other floats were launched incoherently along a north/south line from 24N to 37N. At the same time investigators from Scripps Institution of Oceanography and the University of Rhode Island used four other SOFAR floats to tag a submesoscale lens of Mediterranean water. Slightly over twenty years of float trajectories were p reduced during the first year of the experiment. In this report we briefly describe the 1984 field operations and show the first year's SOFAR float data. Perhaps the most striking result is that westward flow within the Mediterranean salt tongue was found to be confined to a rather narrow jet {roughly 150 km in meridional extent) which had a mean speed of roughly 2 em s -l. To the north or south of this jet the mean flow was much weaker and eastward. This suggests that currents associated with the salt tongue itself {rather than the gyre scale circulation) may be most important for determining the salt distribution.
  • Technical Report
    Surface velocity in the equatorial oceans (20N-20S) calculated from historical ship drifts
    (Woods Hole Oceanographic Institution, 1989-04) Richardson, Philip L. ; McKee, Theresa K.
    Ship drift velocity observations were used to calculate and plot monthly mean and yearly mean velocities in 2° latitude by 5° longitude boxes for the Atlantic, Pacific, and Indian Oceans. The vector maps shown here provide a visualization of the mean and seasonally varying currents.