Accession Number : ADA306223

Title :   High Frequency Subsurface Lagrangian Measurements in the California Current with RAFOS Floats.

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Benson, Kirk R.

PDF Url : ADA306223

Report Date : SEP 1995

Pagination or Media Count : 103

Abstract : This study presents float observations from four RAFOS floats that were deployed off central California for a twenty-three day period as part of a Tomography Demonstration Experiment. These floats, which sampled hourly, were used to investigate float characteristics and the navigational accuracy of current processing techniques. An ordinary mean least square method is proposed to mathematically estimate values for random and systematic errors, producing navigational trajectories which compliment previous methods when determining the most probable solution of the float trajectory. Potential sources of error in the navigational solution are examined, as well as the importance of float/source geometry on position accuracy. It was determined that these floats supported previous studies of the California Current System, and proposes that the California Undercurrent may in fact be wider and deeper that previously suspected. (AN)

Descriptors :   *OCEAN CURRENTS, MATHEMATICAL MODELS, POSITION(LOCATION), TIME DEPENDENCE, RANDOM VARIABLES, ACCURACY, THESES, POWER SPECTRA, DEPTH, PRESSURE MEASUREMENT, FLOATS, OCEANOGRAPHIC DATA, CONTINENTAL SLOPES, FLOW FIELDS, SEASONAL VARIATIONS, NAVIGATION, LEAST SQUARES METHOD, SOUND TRANSMISSION, SAMPLING, CALIFORNIA, TOMOGRAPHY, PACIFIC OCEAN, COASTAL ENGINEERING, SALINITY, HYDROGRAPHY, SURFACE TEMPERATURE, UNDERWATER ACOUSTICS, ACOUSTIC VELOCITY, OCEAN MODELS, GEOSTROPHIC CURRENTS, ERROR CORRECTION CODES, LAGRANGIAN FUNCTIONS, MOORING BUOYS, SOUND RANGING.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE