Environmental Protection Agency Narragansett Bay Commission University of Rhode Island Office of Marine Programs

Estuarine Science


Circulation is the movement of water in the Bay. The water in estuaries, including Narragansett Bay, is constantly moving around. Movement of the water may be due to many different factors. Where the water is going (and coming from), how fast the water is moving and where it is going are all basic questions that can help us understand Narragansett Bay. If a pollutant enters the Bay at one point, it can move all over the Bay with the water. To determine and predict the health of the Bay, scientists keep track of how the water moves.

What are tides?
How do we measure the tides?
What are the tides in Narragansett Bay?
What can we learn by measuring tides?



Fresh Water Input

Flushing Rates

(Image credits are listed in Image Index)

Please address comments and questions to webmaster.

Home | Estuarine Science | Policy and Management | History and Culture | Virtual Field Trip | Biota Gallery | Maps | Glossary | Teacher Resources | Image Index | Site Info