tides? what causes · 2020. 9. 18. · how do we track tides? noaa’s center for operational...
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What Causes Tides?How does the moon and oceans relate?
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Day at the beachYour family arrives at the beach at 9:00 am. You notice that the water is really far out and shallow leaving lots of space on the beach. Where should your family set up the beach blanket, towel, and umbrella?
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What are tides?Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun.
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What are tides?Tidal current consists of:
Flood current - tide coming in
Ebb current - tide going out
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Why do we have tides?The Moon’s gravitational force pulls on the ocean which is liquid and very fluid.
The area on the earth lined up with the moon would experience a high tide
The Earth is rotating though so the area’s experiencing high tides shift throughout the day
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How many tides?
Two high and two low tides every 24 hours
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What are Spring and Neap Tides?Spring Tide- Occurs when the Earth, Moon & Sun are lined up(during New and Full Moon) *Tides are more extreme
Neap Tide- Occurs when the Earth, Moon & Sun are in a right angle. (during 1st & 3rd quarter moons)*Tides are less extreme
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What are Spring and Neap Tides?
Watch this simulation to see the tides occurring throughout the month.
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Let’s look at some pictures of places experiencing high
& low tides
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How do we track tides?
NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS) collects and shares reliable timely tides, water levels, and currents.
Using their real-time data, scientists can forecast, make predictions and make analyses that will help protect the coastal communities and ecosystems.
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North Carolina Tides
CO-OPS tracks NC tides from 6 different locations seen here. We’re going to look more closely at the Beaufort location
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This past Saturday there were two high tides and two low tides at Beaufort, NC.
1
22
3
4
1. 12:00 Midnight High Tide 2. 6:00am Low Tide
3. 12:00 Noon High Tide 4. 6:00 pm Low Tide
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January Data For Beaufort, NC
Go Back to Google Classroom.
Open the Beaufort NC Tidal Data Table Open the Tidal Worksheet
Turn in the assignment when it is finished.