A SHALLOW WATER ISOBARIC BUOY.
NEW YORK UNIV N Y GEOPHYSICAL SCIENCES LAB
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The genesis, development, and testing of an instrument for following currents in shallow waters is described. The volume of the shallow water isobaric buoy SWIB varies in response to pressure signals derived from the depth of the water in which the instrument floats. Mechanisms for auto-variation of density and automatic hovering systems are discussed. Descriptions are presented of the gas-powered volume-changing mechanism, the pingerhydrophone tracking arrangement and various retrieval techniques. Bench, pool, and field tests in Long Island Sound of the initial models of the SWIB indicate the feasibility of the system. The instrument can hover in a relatively restricted horizontal layer. The instrument may find application as a water stability indicator as well as a shallow water current tag. Author
- Physical and Dynamic Oceanography
- Test Facilities, Equipment and Methods