Ocean Currents Beth Roland Jacobs Fork Middle School Team 5 Mountaineers.

Slides:

Advertisements

Similar presentations

Ocean Currents S6E3d Explain the causes of waves, currents, and tides.

Advertisements

Global Forces Student Study Guide. Equator Earth’s Rotation Continental Deflection Global Forces Transparency.

Bellringer Make sure you record today’s date, the question and your answer. If there were no land on Earth’s surface, what would the pattern of surface.

Notes on “Ocean Currents”

Unit 10 Lesson 5 Ocean Currents

Oceanography Ocean Currents

Ocean Currents.

1 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt 10 pt 15 pt 20 pt 25 pt 5 pt Surface.

Ocean Currents “Rivers in the Ocean”. Currents Current – a large stream of moving water that flows through the ocean. Capable of moving large amounts.

Currents and Climate.

Movements of the Ocean Chapter 21.

Ocean Currents.

Ocean Currents Text Book Page #

Ocean Currents.

Surface Currents Movement of water that flow in the upper part of the ocean’s surface.

Ocean Currents. Ocean currents are streams of water that can move millions of cubic meters of water per second. Ocean currents are streams of water that.

Ocean Currents.

Oceanography Ocean Currents Chapter 24.1 and 24.2.

Air Currents in the Atmosphere. Why is it warmer at the equator?

The Movement of Ocean water Carin Miranda Fall 2012 Smyrna Middle School 6B.

Atmospheric movements We learned that energy is transferred from the Sun to the Earth creating convection currents. But, what type of currents???

Ocean Circulation – Ch Ag Earth Science – Chapter 15.2.

Ocean Currents.

Deep Ocean Circulation. Significant vertical movement ▫Accounts for the thorough mixing of deep- water masses.

Mrs. Mannel Earth Science. Surface Currents  Surface currents move water at or near the surface in stream like movement  They can be several thousand.

What are ocean currents?

Ocean Water Chemistry and Currents. Ocean Water Chemistry Salinity: the amount of salt dissolved in ocean water –1kg of ocean water contains 35g of salt.

What forces cause the ocean to move? Gravitational pull of the Moon and Sun Wind (friction between air and water) Coriolis Effect (spin of Earth) Differences.

Bellringer 1.What biome has trees that lose their leaves in the fall? 2.What do you call organisms in a food chain that produce their own food? 3.Give.

Question of the Day Question: If you heat up a liquid, like water in a fish tank, can it hold more oxygen or less? How do you know? Answer: ……… Turn In:

When Whirls Collide 10/30/2015 Record your observations in your science journal. Procedure: 1.Fill a large tub with water 5 cm deep. 2.Add 10 drops of.

Oceans Surface Currents. What are surface currents? Surface currents are horizontal, streamline movements of water that occur at or near the surface of.

Ocean Currents. The water in the ocean is constantly moving The water in the ocean is constantly moving Broad bands of ocean water that flow in one direction.

Ocean Currents. Mass movement or flow of ocean water Mass movement or flow of ocean water River within the ocean River within the ocean Two types Two.

Weather and Climate Notes Part 6. Identify factors affecting seawater density and salinity. When water becomes colder and when it has a high salinity.

Unit 2 Lesson 3 Ocean Currents

Unit 2 Lesson 3 Ocean Currents

OCEAN SURFACE CURRENTS

Ocean Currents.

The Movement of Ocean Water

The picture below shows the triangle trade route in the 1500s

Currents and Climates.

The picture below shows the triangle trade route in the 1500s

Warm-up discussion Imagine that you are at the beach, and you get into the water and begin swimming. Describe what happens if you stop swimming. What does.

Oceans Surface Currents.

Movements of the Ocean Ocean Currents.

Currents and Climates.

13.1 Teacher Notes Ocean Currents

Warm-up discussion Imagine that you are at the beach, and you get into the water and begin swimming. Describe what happens if you stop swimming. What does.

Currents and Climates Notes.

The Movement of Ocean Water

Ocean Currents.

Ocean Currents 1.

MOTIVATION MONDAY In your agenda on today’s date, October 31, write something that motivates you to do your best.

Radiant Energy The Sun’s energy is called radiant energy.

How does the energy flow?

Oceans Continued Lesson 67.

Warm-up discussion Imagine that you are at the beach, and you get into the water and begin swimming. Describe what happens if you stop swimming. What does.

Ocean Currents and Climate

Ch.14.1 Ocean Currents: Objectives: Describe surface ocean currents.

Unit 3 Lesson 5 Ocean Currents

Oceans Surface Currents.

Ocean Currents.

Presentation transcript:

Ocean Currents Beth Roland Jacobs Fork Middle School Team 5 Mountaineers

Current Influences Currents are influenced by: Weather-Global Wind Belts Earth’s Rotation- Coriolis Effect Position of the Continents

Surface Currents Surface currents are the horizontal movement at or near the ocean’s surface. Can reach a depth of 100’s of meters and lengths of 1,000’s of kilometers allowing them to travel across oceans Surface Currents are controlled by: Global winds Travel East to West at Equator Travel West to East at Poles W N E S

Surface Currents Coriolis Effect- curves or deflects the path of global winds –Example: rolling a ball over a spinning disk will curve the line of travel N. Hemisphere- turn clockwise and in the S. Hemisphere- turn counterclockwise Continental Deflections- when surface currents meet continents they are deflected and the direction is changed.

Global Surface Currents

Current Characteristics Temperature- Warm water currents continuously collide with cold water currents allowing for water turn over. Warm water rises and cold water sinks. Salinity- Water with a greater percentage of salt (sodium chloride) is denser and will sink when mixed with water with less salt.

Deep Currents Deep currents occur within our oceans and are not controlled by global winds but by density Higher temperatures and Lower salinity= decreased density Lower temperatures and higher salinity= increased density

Density Impact on Water Movement A. Decreasing Temperature Cold, arctic air decrease heat energy and therefore temperatures at the surface decrease. Water becomes more dense and sinks and travels towards the equator.

Increasing Salinity via Freezing Ice floats as it is less dense than the liquid water and the dissolved solids are not frozen and add salinity to the liquid water beneath the ice. Higher salinity = higher density and the water sinks.

Increasing salinity via evaporation In warm climates, water molecules at the surface evaporate leaving behind dissolved solids which increases salinity. Denser water sinks.