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The Subduction Experiment. Mooring Field Program and Data Summary.

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Technical rept.,

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An array of five surface moorings carrying meteorological and oceanographic instrumentation was deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research ONR funded Subduction experiment. Three eight month deployments were carried out. The five mooring locations were l8 deg N 34 deg W, 18 deg N, 22 deg W, 25.5 deg N 29 deg W, 33 deg N, 22 deg W and 33 deg N 34 deg W. Two Woods Hole Oceanographic Institution WHOI and three Scripps Institution of Oceanography SIO moorings collected oceanographic and meteorological data, using a 3-meter discus or 2-meter toroid buoy and multiple Vector Measuring Current Meters VMCMs, an Acoustic Doppler Current Profiler ADCP and Brancker temperature recorders tpods. The surface buoys carried a Vector Averaging Wind Recorder VAWR and, on four of the five moorings, an Improved Meteorological Recorder IMET which measured wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The VMCMs, ADCP and tpods, placed at depths 1 m to 3500 m, measured oceanic velocities and temperatures. This report presents meteorological and oceanographic data from the WHOI Upper Ocean Processes Group UOP and the SIO Instrument and Development Group IDG instruments and contains summaries of the instruments used, their depths, mooring positions, mooring deployment and recovery times, and data return. Appendices contain information on supplementary Subduction data sets. MM

Subject Categories:

  • Meteorology
  • Physical and Dynamic Oceanography
  • Geology, Geochemistry and Mineralogy
  • Acoustics

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