World Geography 3200 2.4 WINDS Understand the cause of winds and how they affect climate Chapter 4 Pages 59-67.

Slides:



Advertisements
Similar presentations
Aim: What’s the difference between weather and climate?
Advertisements

What Causes Climate? Chapter 18 Section 1.
WINDS Understand the cause of wind and how it affects climate Chapter 4 Chapter 4 Pages Pages
What causes Climate ? Text Book page #
World Geo WINDS Understand the cause of winds and how they affect climate Chapter 4 Pages
Factors that drive atmospheric processes
Science ~ chapter 9 climate
World Climate Patterns World Geo 3200/3202 Unit 2 November 2010
Global Patterns & Relative Humidity
Wind, Climate, and Ocean Currents Wind, Climate, and Ocean Currents
WINDS Understand the cause of wind and how they affect climate Chapter 4 Chapter 4 Pages Pages
FACTORS THAT AFFECT CLIMATE
Weather and Climate   Weather is the short term change in the air for a given place and time.  Climate is a region’s average weather conditions over.
Climate and Weather Climate - long- term average of weather conditions— wind, temperature, precipitation, moisture, and other aspects of weather. 3 3.
19.2 Pressure Centers & Wind
Climate: Factors That Affect Precipitation Objective: Explain what affects precipitation and its role in climate.
Wind & Climate Wind – the horizontal movement of air. Low pressure – warm air rising. High pressure – cold air falling. Winds always blow from high pressure.
Weather & Climate Chapter 6. Weather & Climate Weather:  Refers to the current, day-to-day, short term conditions of the atmosphere.
How are you going to SELL to me the factors that affect temperature?
LACEMOP Factors that Shape Weather. Weather & Climate Weather : a condition of the atmosphere in one place during a short period of time Climate : weather.
Climate is affected by Earth's Features
Review Weather Test. Conduction, Convection, Radiation What are the three forms of heat transfer?
Chapter 4: Weather and Climate Notes
DAY ONE Chapter 13 Atmosphere and Climate Change Section 1: Climate and Climate Change.
Chapter 3 Section 2. Latitude and Climate  How does Latitude influence Climate? Earth/sun relationship ○ More or less direct sun based on Latitude Bands.
Unit 2 World Geography Review. Relationships Weather vs climate Weather = the state of the atmosphere at any one place or time. (short term) Climate =
Effect of the Sun on Earth’s atmosphere:
Global Atmospheric Circulation
Climate and Weather.
Canada’s Climate Systems “Identifying weather and climate statements”
Global Weather Patterns
4.3 Air Currents.
FACTORS INFLUENCING CLIMATE
The Coriolis Effect.
Understand Land & Sea Breezes and their cause Unit 3
Chapter 4: Climate and Climate Change
Global and Local Winds Chapter 16 Section 3.
Handout (green) Atmospheric Circulation
Climate.
Air Movement List the properties of the air currents within a convection cell. Describe how high and low pressure cells create local winds and explain.
Wind and the Coriolis Effect
Atmospheric Circulation
Wind & Climate Wind – the horizontal movement of air.
Climate and Weather.
Climate Controls and Precipitation
Chapter 18.1: What causes climate? Page 614
Factors that shape Weather
Global and Local Winds.
Global and Local Winds Chapter 16 Section 3.
Wind and the Coriolis Effect
Climate Determines Global Patterns in the Biosphere
Module 10 Air Currents After reading this module you should be able to
Chapter 13 Section 2 What factors determine climate?
Factors Affecting Climate
Weather and Climate.
Wind circulation through the atmosphere
Climate.
Understand the cause of wind and how it affects climate
The Water Cycle Continues
Atmosphere & Weather All About Winds.
Understand the cause of wind and how they affect climate
Global and Local Winds.
Climate.
Weather vs Climate.
Air Masses.
Chapter 11 Section 8 What causes local winds?
Chapter 11 Section 8 What causes local winds?
Global and Local Winds.
Do Now Predict why weather could be different on the front side of a mountain (windward) than on the back side of the mountain (Leeward). Explain.
Presentation transcript:

World Geography 3200 2.4 WINDS Understand the cause of winds and how they affect climate Chapter 4 Pages 59-67

2.3.1 Air moves from areas of high pressure to areas of low pressure. Think of: Air inside a balloon Air exhaled from a person’s lungs Air powered pellet gun The movement of air from high and low pressures in the earth’s atmosphere are responsible for wind! P. 59-61

2.3.1 What is Wind? Wind: * It is the flow or movement of air. * It results from air masses of different temperatures lying next to each other * The resulting pressure variation causes “wind” to blow from high pressure area to low pressure area.

2.3.1 Define the term Prevailing Wind. p.61-63 Prevailing Winds: They are regular, predictable, normal winds in the same direction They are caused by global convection cells More on these later!

2.3.2 Describe conditions that result in Land and Sea Breezes During the day the land heats much faster than the water, consequently the air over the land heats and rises. The rising air over the land leaves a relatively low pressure. The air pressure over the water is relatively high, therefore wind blows from high pressure (water) to low pressure (land) Hence the name 'sea breeze'—the wind is blowing off the sea.

Land Breezes: 1. The sea air is warmer than land air. Because this air is warmer, it rises and leaves a relatively low pressure over the sea. 2. The land air then blows to the low pressure over the sea.

Remember—winds are named for where they come from. For example, easterly winds come out of the east; southerly winds come out of the south; sea breezes come from the sea.

2.3.2 Describe Conditions that result in Land and Sea Breezes Land Breeze Sea Breeze Sea air warmer than land air Air rises over sea, leaving a relative low pressure Land air moves to lower pressure Land air is warmer than sea air Air rises over land, leaving a relative low pressure Sea air moves to lower pressure

2.3.6 Define windward, leeward and rain shadow

Windward is on the side facing the wind. Wind carries precipitation Leeward is on the side sheltered away from the wind. Wind is usually drier Rain shadow is a dry area on the leeward side of a mountain

2.3.8 Explain the relationship between wind systems and precipitation Prevailing winds blowing off the ocean and onto the land results in high precipitation. Especially if the wind is blowing off a warm ocean, like the Indian Ocean or the south Pacific. If wind is blowing off the land, then there is very little moisture in it, resulting in low precipitation.

Knowing the direction of winds over mountains is also important in predicting precipitation. The windward side of a mountain is going to receive the greatest rainfall, while the leeward side will find itself in a rain shadow.

2.3.8 Explain the relationship between wind systems and precipitation How do the prevailing winds affect precipitation in: England Midwestern U.S. British Columbia Northern Africa Central Australia Question #26 p. 67: