XCP Measurements Off California in October 1982: Cruise Report and Preliminary Results.
WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB
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Sixty nine profiles of horizontal velocity and temperature from the surface to about 800 m were made using the Expendable Current Profiler XCP during De Steiguer cruise 1212, 7-18 October 1982. The XCPs were deployed in a 6 day time series behind a drogued buoy and in a 275 n.mi. zigzag spatial survey. Satellite infrared images were used to locate a cruise area away from strong mesoscale features. The measurements were designed to estimate the horizontal coherence function of the near-inertial frequency internal wave field for comparison with similar measurements made in the Sargasso Sea. It was found that the near-inertial waves are a dominant feature of the velocity field. Significant coherence exists between nearby profiles. It will, therefore, be possible to compute a correlation function for these data as planned. A near-surface feature with peak-to-peak velocities of 70 cms was observed and partially surveyed. Author
- Physical and Dynamic Oceanography