Publication Date:
2022-05-26
Description:
Author Posting. © Acoustical Society of America, 2020. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 147(3), (2020): 1392-1403, doi:10.1121/10.0000794.
Description:
Broadband data acquired during the Modal Mapping Experiment (MOMAX) V experiment are used to invert simultaneously for the three-dimensional (3D) water column sound speed profiles and the compressional wave speed and density profiles of the seabed in shallow waters off the coast of New Jersey. Linear Frequency Modulation sweep signals in the band 50–300 Hz are transmitted from a nearly stationary source at several discrete positions to a set of freely drifting receivers. Mode travel times are estimated from the signals acquired by the drifting buoys, and these are then used as input data in an inversion algorithm that estimates the acoustic properties of the water column and sediments. The resulting 3D compressional wave speed profiles in the seabed are generally consistent with the one-dimensional profile obtained during the narrowband component of MOMAX V, as well as the results from other experiments in the same area. The validity of the inversion results has also been assessed by the ability of the inverted model to predict the fields measured during the narrowband experiments.
Description:
The authors gratefully recognize the support of the entire team that was responsible for the execution of MOMAX V. The work reported in this paper was done with the support of the Office of Naval Research under Grant Nos. N00014-09-1-0505 and N00014-12-1-0083 and the Space and Naval Warfare Systems Command through Naval Sea Systems Command Contract No. N00024-02-D-6604.
Description:
2020-09-02
Repository Name:
Woods Hole Open Access Server
Type:
Article
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