Warm Up: Quiz Yourself- True or False 1) Weather and Climate are the same thing. 2) As Latitude increases, the intensity of solar energy decreases 3) The lower the elevation, the warmer the climate 4) Bodies of water and topography have no effect on weather and climate
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Warm Up: Quiz Yourself- True or False 1)Weather and Climate are the same thing. 2)As Latitude increases, the intensity of solar energy decreases 3)The.
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Warm Up: Quiz Yourself- True or False
1) Weather and Climate are the same thing.
2) As Latitude increases, the intensity of solar energy decreases
3) The lower the elevation, the warmer the climate
4) Bodies of water and topography have no effect on weather and climate
DO NOW: Quiz Yourself- True or False
1) Weather and Climate are the same thing. FALSE
2) As Latitude increases, the intensity of solar energy decreases. TRUE
3) The lower the elevation, the warmer the climate. TRUE
4) Bodies of water and topography have no effect on weather and climate. FALSE
Ocean Currents
What is a current?
• An Ocean Current is a directed, continuous movement of ocean water generated by various forces.
• Currents are caused by various factors:– Temperature– Different salinity levels– Winds can impact a lot of factors (climate and global
• Surface current = movements of water that flow horizontally in the upper part of the ocean’s surface–Develop from friction between the
ocean and the wind that blows across its surface – global winds!
• An increase in seawater density can be caused by a decrease in temperature or an increase in salinity• Can also result from increased salinity
of ocean water due to evaporation
Subsurface Ocean Currents
a. The warmest layer of the ocean is the mixed layer/ surface zone where water is mixed by waves and currents. b. The thermocline is the zone below the surface where rapid temperature change occurs. c. The coldest layer is the deep zone with temperatures of around 5 degrees Celsius.
Draw the temperature line and label the Temperature Zones
The Gulf Stream is known as a long-distance surface current that carries warm water from the southern tip of Florida along the eastern coast of the US.
Currents in the Northern Hemisphere move clockwise (currents correspond to the wind circulation in each hemisphere), while currents in the Southern Hemisphere move counterclockwise. This is because of the Coriolis Effect.
The Coriolis effect (the apparent shift in fluids or objects due to the rotation of the Earth) explains ocean current patterns curving in each hemisphere.
The movement of deep ocean currents to the surface is called upwelling. This occurs when deep cold currents are forced upward by the ocean floor bringing nutrient rich foodstuffs to the surface. This produces rich fishing grounds in areas where upwelling occurs. (Ex. Peru, Chile)
1)Where did the shipping container fall into the ocean, and where are 3 places that the rubber ducks have gone or come ashore?
2)Has the rubber ducks journey been a quick one or has their trip been really slow? How do you know?
3)After 20 years have all of the rubber ducks come ashore? Why or why not?
4)What problems have the rubber ducks helped everyone to see?
5)Looking at the map on the board, where else might the rubber ducks end up?
Where would your message go?
Here’s your assignment for the rest of class:1. Pretend you are writing a “message in a bottle”2. First decide: Where do you want your message to end up (which
country)?3. Next decide: Where will you have to go to make sure your bottle
arrives in the proper country? (If there are more than one current associated with your trip, take note of that).
4. What to write: 1. Your message will need to be at least one paragraph and must be
addressed to someone in a different country. 2. Include where you are and how your message ended up in its location. 3. Include an explanation of ocean currents and what causes them. 4. Include a map of the bottle’s route. *You may use any classroom resources that you need in order to complete