Abstract
Vector acoustic properties of the underwater sound field simultaneously observed from multiple surface vessels during the recently completed (May–June 2022) experiment on the New England Mud Patch (NEMP) approximately 100 km south of Cape Cod are discussed. The properties, such as bearing, degree of polarization, and other non-dimensional parameters are derived from a 4 by 4 field matrix composed of pressure and 3-component velocity, and a 3 × 3 matrix composed of only velocity components. The measurements were made with two sensing systems, separated by 21 km, referred to as an Intensity Vector Autonomous Recorder (IVAR), and identified as IVAR-1 and IVAR-2. Individual ship CPAs tracks are identified with automated ship identification (AIS) data. In this presentation, the two sources of measured vector acoustic field data combined with the AIS data are exploited to study the effect of interaction of multiple acoustic sources on a received vector field.
Published Version
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