Bradley Keith F.

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Bradley
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Keith F.
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  • Preprint
    Laboratory studies of stratified convection with multiple states
    ( 2005-01-14) Whitehead, John A. ; Bradley, Keith F.
    A simplified box model of the cooling of a salt-stratified ocean has been constructed in the laboratory to test a theory that predicts multiple equilibria if certain conditions exist. An isothermal basin of water had a thin layer of fresh water over salt water. Beside this was a smaller basin connected to the large basin by horizontal tubes at the top, middle and bottom. The small basin was cooled from above. If the top tube has more flow resistance than the bottom tubes, theory indicates that as cooling temperature T* is made colder, there is a sudden transition between two flow states. The velocities in the tubes jump to greater values, while salinity and temperature in the small basin jump to another value. These multiple states are found in the laboratory experiments along with some states that oscillate. Laboratory measurements and layered model calculations for hysteresis and the jump of temperature and salinity agree qualitatively, but there is only rough quantitative agreement.
  • Technical Report
    Technical activities associated with an exploratory array in the western North Pacific
    (Woods Hole Oceanographic Institution, 1982-09) Bradley, Keith F.
    Operations activities of the Woods Hole Oceanographic Institution's Buoy Group for an exploratory array of deep-ocean moorings in the western North Pacific Ocean are described along with specific engineering notes associated with high-current deep moorings. The array, along 152° E. from 28° N. to 41° N., was in place for about two years. After one year the array was successfully recovered and redeployed. Brief summaries of each of three research cruises are provided. An Appendix lists details of the twenty moorings including positions, dates deployed and recovered, instrument types and depths and moored station numbers which are required for specific data retrieval by investigators. The initial scientific publication has been prepared by Schmitz, et al (1982).
  • Technical Report
    A summary of Woods Hole buoy group moored stations for the Polymode Program
    (Woods Hole Oceanographic Institution, 1981-03) Bradley, Keith F.
    The Woods Hole Oceanographic Institution Buoy Group's field work for the international POLYMODE program consisted of deployment and recovery of seventy of the seventy- eight program moorings on eight research cruises. The mooring program consisted of four distinct experiments conducted from June of 1974 to November of 1979. A brief description of the arrays is provided, the mooring design process for a typical POLYMODE mooring is explained, and brief summaries are given of the WHO! deployment and recovery cruises. Appendix I is a schematic presentation of the chronological mooring history; Appendix Il lists details of the seventy WHO! moorings deployed in the POLYMUDE program and Appendix II I lists details of other WHOI moorings that may be of interest to investigators .