Hydrophone data

Passive acoustic monitoring on the MARS Cabled Observatory

These recordings represent a growing collection of sounds within the ocean soundscape, as recorded offshore of Monterey Bay, California. They are part of a research and education project that employs a deep-sea observatory to continuously record sounds within and outside the range of human hearing.

Browsing the spectrograms

The table below allows anyone to visually browse spectrograms generated from the MARS hydrophone data.  Simply select the month and year of interest, and all of the hourly spectrograms for that month will be loaded into the viewing panel.

Animation controls are located below the spectrogram viewing panel. You can scroll forward in time (>) or backward (<);  stop scrolling ([]); step forward by one hour at a time (+1) or backward (-1); or restart from the beginning of month (START).