Name: _____________________________________
Date: ________________ Pd: ____
Chapter 3: Wind, Currents, Tides Web Activity
WIND FORMATION**Go to http://kingfish.coastal.edu/marine/Animations/Hadley/hadley.html to observe Global Winds.
1.
Describe what is happening in an ideal Hadley cell. Sketch what is happening at the equator and label.
2.
Clicking on “midlatitude components”, what kind of winds are being formed?
CURRENTS** Go to http://oceanservice.noaa.gov/education/tutorial_currents/welcome.html
3.
What are the 3 factors that drive oceanic currents?
4.
Click on “Tidal Currents” and click on top image to see the animation. What is a flood current? What is an ebb current?
Tidal Range? (Draw out a diagram and label)
5.
Click on “Coastal Currents” on the right and click on “Anatomy of Wave” picture. Draw and label parts of a wave.
6.
Click on “Surface Ocean Currents”.
a.
Explain what the Coriolis Effect is and sketch out an example of how the air moves in different hemispheres due to this
phenomenon.
b.
Click on the “Ekman Spiral” tab near the title. What is the Ekman spiral? Sketch it below.
TIDES**Go to http://oceanservice.noaa.gov/education/tutorial_tides/lessons/tides_subrev.html and click on the link given at top.
Click on “What Causes Tides” and click on the top image.
7.
Which celestial body has a greater effect on tidal forces on Earth? How is this possible? Compare and contrast the masses and
distance of the Earth to the moon and sun.
Click on “Gravity, Inertia and the Two Bulges” and click on the image.
8.
Draw the image depicted and make sure to label.
Click on “Frequency of tides- A lunar day” and click on the image for the animation.
9.
Compare and contrast a solar and lunar day. How long is a lunar day?
Click on “Tidal Variations - The Influence of Position and Distance” and click on the top image for the animation.
10. Draw the two neap tide scenarios and two spring tide scenarios below labeled. Show the lunar and solar bulges.
Spring tide
Neap tide
Spring tide
Neap tide