Sonifying All the Tides

This post is an extension of my previous post and presentation on sonifying the tides.

I downloaded all the available harmonic constituent data from NOAA, converted it to CSV, sonified it, and rendered part of each waveform as an image.

The sound files simulate the tides at 36 million times faster than real-time which makes the resulting waveforms audible.

Here is a map of all NOAA stations with harmonic constituents data. You can find station ID numbers there and find them in the list below.

Many thanks to NOAA for providing all the data.

Enjoy!

This work is marked with CC0 1.0

Update [2025-10-01 Wed]

I discovered and fixed a number of errors in my source code for generating these files. The output has been corrected here. The biggest error was that I used sin() and not cos() as intended for the Fourier synthesis. Oops! I should have read the NOAA publications more closely. I also skipped the first output sample, and did not round them.

I also added new plots of the harmonic constituent amplitudes and phases for each station.

West Coast

California

Oregon

Washington

Alaska

East Coast

Maine

New Hampshire

Massachusetts

Rhode Island

Connecticut

New York

New Jersey

Delaware

Pennsylvania

Maryland

Virginia

District of Columbia

North Carolina

South Carolina

Georgia

Florida

Gulf Coast

Alabama

Mississippi

Louisiana

Texas

Pacific

Hawaii

Other

Caribbean Islands

Bermuda

Caribbean/Central America

Indian Ocean Asia and Africa

© Copyright 2025, Remington Furman

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