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Corrie .S. Pfeffer


Weather Week 2 Review

Lesson: 140

Write a 150-word article on the wind, pressure systems or both.

Wind is air in motion. There are three forces that drive surface wind. Pressure Gradient Force, Coriolis Force, and Friction. Let’s take a gander at each:

  • Pressure Gradient: It is the change in pressure over distance. High Pressure areas forcing air towards Low Pressure areas.
  • The Coriolis Effect: The influence of Earth’s rotation on objects not attached to the surface. It is greatest at the poles. It has no influence at the equator. Low pressure cells in the Northern Hemisphere from above are traveling slower than High Pressure cells and the get pushed behind while the air from below is pushed ahead. It is the opposite in the Southern Hemisphere. That is why storms and hurricanes in the north spin counter clockwise and in the south spin clockwise. The winds at the equator move faster than winds in the north and south hemispheres.
  • Friction: Caused by plants and topography. Anything slowing the wind down.



Published by Corrie.S.P.

The story of Corrie is a strange and fantastic tale told over many generations. It mostly consists of Scripture, books, friends, and fun. But, it has been known to include crochet, cooking, baking, drawing, and organization. Corrie, is a strange beast and likes to dwell in shadows observing life and reading mysteries. She plays with animals and has a few close friends. Jesus Christ died for her sins and she will willingly talk to anyone about the Scriptures. If you wish to seek her friendship you must be honest, friendly, true, faithful, charitable, compassionate, and kind. No ordinary person can win the trust of the Corrie. Explore a little bit of her mind on her blogs, she enjoys getting comments on her posts. It means a lot to her. It means that someone took the time to pay attention and read her post and that is an awesome thing! And remember, tread carefully, for Corrie is always watching.

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