LAUSR

The articles in this special section focus on research and development related to the Target and Reverberation Experiment (TREX13) conducted in the Gulf of Mexico off Panama City, FL, USA, in spring 2013. The primary goal of the experiment was to measure midfrequency (2–10 kHz), shallow-water reverberation with full companion environmental measurements such that models and data could be compared without ambiguity. While a number of other major field efforts, such as the Acoustic Reverberation Special Research Program and the Acoustic Clutter Reconnaissance Experiment, have been conducted to study low- to midfrequency reverberation, it has been difficult to measure and account for all of the relevant reverberation mechanisms in a single experiment.