Classifying Estuaries: Links for Students

Puget Sound Circulation

Is the flow of water in an estuary different from the ocean or a lake?

Features: Online Interactivity

Classifying Estuaries by Water Circulation

Scientists classify estuaries based on their water circulation and geology. Learn about the five major types of estuaries: based on water flow salt-wedge, fjord, slightly stratified, vertically mixed, and freshwater. Great animations!

Features: Graphics/Multimedia

Classifying Estuaries by Geology

Estuaries are often classified by their existing geology or their geologic origins. The five major types of estuaries classified in this way are coastal plain, bar-built, delta, tectonic, and fjord. View animations to learn more about each of these.

Features: Graphics/Multimedia

Tides Animation

The gravitational pull of the Moon and the Sun affect the Earth's tide on a monthly cycle. This page's animated graphic illustrates this phenomena.

Features: Graphics/Multimedia

Massachusetts Tide Charts

Find predicted tidal conditions for each of Massachusetts's 6 regional areas.

Features: Data Sources

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