Mud Sound Speed Profile Constraints from sub-bottom arrival times

Authors

Charles W. Holland, Portland State UniversityFollow

Sponsor

The author thanks the ONR Ocean Acoustics program under Grant No. N000142312337 for supporting this research and Stan Dosso for helpful suggestions on the manuscript.

Published In

JASA Express Letters

Document Type

Article

Publication Date

3-2026

Subjects

Mud Sound Speed -- Ocean Sediments

Abstract

Arrival times of sub-bottom reflected paths together with co-located direct measurements of the angle of intromission provide narrow constraints on the sediment sound speed profile. Measurements of these two quantities at the central New England Mud Patch in March 2017 indicate that the average sound speed gradient in the upper 3m and upper 9m of mud is 6 s1. Gradients of 5 s1 and 7 s1 over the upper 9m are too small and large, respectively. Below 9m, the sandmud transition interval has a gradient of 200 s1. VC

Rights

Copyright (c) 2026 The Authors

This work is licensed under a Creative Commons Attribution 4.0 International License.

Locate the Document

https://doi.org/10.1121/10.0043016

DOI

10.1121/10.0043016

Persistent Identifier

https://archives.pdx.edu/ds/psu/44530

Citation Details

Holland, Charles W., "Mud Sound Speed Profile Constraints from sub-bottom arrival times" (2026). JASA Express Letters