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Understanding Wind and Upwelling: Earth's Energy Dynamics

Wind is created by the uneven heating of the Earth, driven by solar energy. Learn about global winds, upwelling phenomena, and how Earth's spherical shape influences temperature distribution. Discover the factors behind uneven heating and its impact on ocean currents for enhanced environmental awareness.

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Understanding Wind and Upwelling: Earth's Energy Dynamics

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  1. Wind • Wind is created by solar energy. More specifically wind is created by the uneven heating of the Earth. Reasons why the Earth heats unevenly: 1) it’s made of water and land 1. Hot air rises 3. Cool air fills void wind 2. Void Water Land

  2. wind • What happens at night?

  3. Global Winds • Global winds are created by the uneven heating of the Earth. • Why doesn’t the Earth heat evenly? • 1. The planet is a sphere • 2. Parts of the planet are covered by land and parts are covered by water.

  4. Only the part of the Earth that is in a direct line with the sun (the tropics) gets the full force of the solar radiation. • As you move north and south from the tropics the solar radiation comes in at an angle and thus has less heat. The least amount being at the poles (north and south)

  5. Upwelling • Upwelling is vertical water movement. Water brought up from the bottom of the ocean to the surface. • It occurs along the California coast for a couple of reasons: 1) The California current veers to the right forcing water away from the coast and 2) During summer months high pressure systems cause winds (Santa Ana) to blow offshore forcing more water away from the coast. • The cold water from below comes up (upwells) and fills the void.

  6. offshore wind Upwelling brings up cold nutrient rich water

  7. Global Primary Production

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