Speaker
Description
Measurements of ocean sound ocean have been made in many locations at many times since hydrophones were first deployed in the 1950s, and measurements in the North Pacific Ocean and some other regions show that sound has increased over this period. This increase has significant implications for organisms that live in the ocean and use sound for life functions. Much ocean acoustic data are available from scientific measurements, ocean observing systems, observations by national navies, and energy companies. The Comprehensive Nuclear Test Ban Treaty Organization International Monitoring System (CTBTO IMS) records hydroacoustic information at 6 locations throughout the world ocean to monitor for nuclear signatures. Although the CTBTO IMS was designed for a specific purpose related to adherence to the treaty, the data obtained are useful for a wealth of scientific purposes. To create a global ocean soundscape and determine how sound in the ocean is changing over time, coordination of available acoustic observations, intercalibration of observing systems, and sharing of data needs to be improved. This presentation describes a new international research project called the International Quiet Ocean Experiment, which is designed to characterize ocean soundscapes, improve observations of ocean sound, and study how sound affects marine organisms.
