Name ________________________________ Base___________________ Date _______________
Daily Tide Patterns
Semidiurnal tides - Some areas experience two high tides and two low tides each day. This pattern is known as a semidiurnal tide pattern. The Atlantic coast of the eastern United States has a semidiurnal tide pattern.
Diurnal tides - Other areas have only one high tide and one low tide each day. This pattern is called a diurnal (daily) tide pattern. Diurnal tide patterns occur in the southeastern United States along the Gulf of Mexico.
Mixed tides - Areas such as the Pacific coast of the western United States have a mix of diurnal and semidiurnal tide patterns.
What type of Tide pattern do we have here in New Jersey?
1. Click on Tidal Information Page http://www.catalina.org/goodies/tides.htm
2. Scroll down to Cities Listing (farther down the page.)
3. Find a city in New Jersey.
4. Copy and Paste the name of that city into the "Location" box (first take out what is already in there)
5. Put the number "15", for 15 days, in the "Days" box.
6. Click "Look up Tides"
7. Look at the tide information that is shown. What type of
tide pattern do we have here in New Jersey? How do you know?
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8. Now find another city with a DIFFERENT type of tide pattern. Refer to the information at the top of this page to help you decide on a city that would probably have a tide pattern different from ours.
9. What city did you choose? _______________________________________________________________
10. What type of tide pattern did that city have? ________________________________________________
