Starter: What do you know about conduction, convection, and radiation?. 10/22/2014 73 74 Wind,...
-
Upload
rebecca-richard -
Category
Documents
-
view
218 -
download
0
Transcript of 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.