Starter: What do you know about conduction, convection, and radiation?. 10/22/2014 73 74 Wind,...

Starter:What do you know about conduction, convection, and radiation?.

10/22/2014

73 74Wind, Climate, and Ocean

Currents 10/22/2014

Practice :Notes over Wind and climate

Application/Connection:

Activity: Graphing Winds

Wind, Climate, and Ocean Currents

Exit: How would the climate in Texas change if a cold-water surface current did not run along Texas’ coast?A. The climate would remain the

same.B. The climate would become

warmer.C. The climate would become

cooler.D. The climate in Texas is not

affected by surface currents.

October 22, 2014AGENDA

Objectives 8.10 A: Recognize that the Sun provides the energy that drives convection within the atmosphere and oceans, producing winds and ocean currents by completing notes and an activity

1 Starter2. Practice3. Notes4. Ws5. Exit

TURN IN HW !!!Crossword

Heat Energy Papers

Date Lecture/ Activity/ Lab Page10/16 Unit 5 vocabulary 65-6610/17 Quiz/Writing 67-6810/20 Weathering Notes 69-7010/21 Weathering Lab 71-7210/22 Climate, Wind and Ocean Currents 73-74

Table of Contents

Climate, Wind and

Ocean Currents

Climate

It is the long-term weather of that area (at least 30 years).

Two of the most important factors determining an area's climate are air temperature and precipitation.

World biomes are controlled by climate.

Factors that affect Temperature

The temperature of a climate are determined by 3 natural factors:

1. latitude: a measure of the distance north and south of the equator2. elevation: distance above sea level3. ocean currents: a “river” of water that flows in a definite path in the ocean.

Factors that affect Precipitation

Two natural factors affect precipitation at a particular location:1. Prevailing winds: (which will

be mentioned later)

2. Mountain ranges: Acts as a barrier against

prevailing winds Will determine the amount of

precipitation an area will get

Windward side:

side of mountain facing wind:

receives moisture with lots of precipitation because air comes from ocean.

win

dw

ard

Leeward side

• side away from the wind

• receives very little precipitation because air comes from land

Leewar

d

Winds

caused by differences in air pressure due to unequal heating of the atmosphere

formed by the movement of air from one place to another.

Two types of winds occur in the atmosphere Local Global

Local Winds

Two types: Sea breeze: a flow of air from

the sea to the land Cool air rises, warmer air moves in

to take its place Occurs during the day

Land breeze: a flow of air from land to sea Warm air rises, cooler air moves in

to take its place Occurs at night

Blow from any direction and usually cover short distances.

Stronger global winds:

Prevailing westerlies: 40° to 60° latitude in

the north and south hemisphere;

strong winds

Trade winds: 30° north and south of

the equator; warm air rising from

the equator cools and begins to sink; sky is clear

Weaker global winds:

Polar easterlies: 50° to 90° latitude in

both hemispheres; cold weak winds

Doldrums: 5° to 0° latitude in the

north and south hemisphere very near the equator,

an area with no wind or light variable winds

Coriolis Effect

is the curving of moving objects from a straight

path due to the Earth’s rotation.

this causes all the global winds to blow either to the right or the left as they blow

In the North, winds blow to the right.

In the South, the blow is to the left.

Ocean Currents

Are influenced by weather, Earth’s rotation, and the position of the continents.

Two types of currents that occur in the ocean: Surface deep

Surface Currents

Are stream-like movements that occur at or near the surface of the ocean

These waters make up about 10% of all the water in the ocean.

These waters are the upper 400 meters of the ocean.

Deep Currents

Are stream-like movements of ocean water far below the surface.

These waters make up the other 90% of the oceanThese deep waters sink into the deep ocean basins at high

latitudes where the temperatures are cold enough to cause the density to increase.

Factors that combine to affect the density are: temperature salinity

How would the climate in Texas change if a cold-water surface current did not run along Texas’ coast?

A. The climate would remain the same.B. The climate would become warmer.C. The climate would become cooler.D. The climate in Texas is not affected by

surface currents.

Starter:What do you know about conduction, convection, and radiation?.

10/22/2014

73 74Wind, Climate, and Ocean

Currents 10/22/2014

Practice :Notes over Wind and climate

Application/Connection:

Activity: Graphing Winds

Wind, Climate, and Ocean Currents

Exit: How would the climate in Texas change if a cold-water surface current did not run along Texas’ coast?A. The climate would remain the

same.B. The climate would become

warmer.C. The climate would become

cooler.D. The climate in Texas is not

affected by surface currents.