NOAA Photo Library Banner
Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page.
Historical C&GS | Nautical Charting

tides and tidal currents banner

One of the great rhythms of our world is the incessant rise and fall of the tides, a great symphony of interaction of sun, moon, ocean, and earth. Humankind has observed the tides for thousands of years and was able to roughly correlate the relative position of the sun and moon with the state of the tides, but it was not until Sir Isaac Newton formulated the theory of gravitation that the cause of tides became known.

Tidal observations were first made by observing the rise and fall of tides as registered on a graduated staff, but by the mid-Nineteenth Century several types of automatic recording tide gauges were operational. After accumulating masses of data and correlating with astronomic observations of the sun and moon, it became possible to bring tidal predictions within the reach of computation by the latter half of the Nineteenth Century. Tide and tidal current tables became regular additions to the products of the Coast Survey.

Join the Coast Surveyors as they installed the tide gages along our Nation’s coast that formed the basis for tidal predictions as well as monitored the rise of global sea level…

collection viewing options banner
View ALL images contained in the collection. Click on thumbnails to view larger images.
Images are arranged by themes. Click on thumbnails to view larger images. Note that not all images are contained in the albums - select the above option to view ALL current images.

Historical C&GS ~ Nautical Charting Albums - Tides and Tidal Currents

Man with tide instruments.

man with current instrumentation.
Tidal Currents

Publication of the National Oceanic & Atmospheric Administration (NOAA),
NOAA Central Library

NOAA Privacy Policy | NOAA Disclaimer

Last Updated:
October 1, 2009