2026/03/01 by Charles W. Holland · 1 voice
Earth and Planetary Sciences · Environmental Science · #Underwater Acoustics Research #Geological formations and processes #Coastal wetland ecosystem dynamics
paper · doi:10.1121/10.0043016
openalex publication_date 2026/03/01 · openalex created_date 2026/03/12 · openalex updated_date 2026/08/01
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 ∼3 m and upper ∼9 m of mud is ∼6 s-1. Gradients of 5 s-1 and 7 s-1 over the upper ∼9 m are too small and large, respectively. Below ∼9 m, the sand-mud transition interval has a gradient of ∼200 s-1.