Global Winds. GLOBAL PRESSURE EQUATORIAL LOW POLAR FRONT (LOW PRESSURE) (60°) TROPICAL HIGH (30°) POLAR HIGH Global circulation depends on differential.

Slides:

Advertisements

Similar presentations

and associated Surface Winds

Advertisements

22.3 Atmospheric Circulation

Bell work Write a poem about moving air. The poem should include an explanation of why air moves.

Global Winds Winds that blow steadily from specific directions over long distances.

The General Circulation of the Atmosphere

Pressure, Wind and Weather Systems Air heated by contact with ground expands; becomes less dense and rises Sun heats up ground LOW PRESSURE Denser air.

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

Aim: What are some of Earth’s wind patterns? I. Winds and Pressure Belts A. Convection cell – when air circulates by rising in one place and sinking at.

Global Wind Patterns and Weather & Weather Basic

Wind and the Coriolis Effect

Earth’s Climate System (part 2) revisiting the radiation budget heat capacity heat transfer circulation of atmosphere (winds) Coriolis Effect circulation.

Pressure, Wind and Weather Systems � WINDS are horizontal flows of air; winds blow from areas of high pressure to areas of low pressure (nature tries to.

Prevailing Winds AKA: Global Wind Belts Where convection cells (air masses) meet forming jet streams and prevailing winds Winds move from a area of high.

Atmospheric Pressure and Wind

WHAT MAKES THE WIND BLOW?. Recall the effect of solar radiation.

THE 3 CELL MODEL.

Adapted from and by Ms. Shaw.

Basic Meteorology Concepts. Spheres of the Earth.

Energy Receipt and Latitude Recap

Air Movement Chapter 4 – Section 3 Pages

The summer wind, came rolling in, from across the bay.

Global Wind Patterns.

Winds. Wind is the horizontal movement of air from an area of high pressure to an area of low pressure. All winds are caused by differences in air pressure.

A2 Module 4: Global Change

22.3 Atmospheric Circulation. It all starts with unequal heating of Earth that cause differences in pressure Warm air is less dense, rises and creates.

Wind and the Coriolis Effect

Global Winds Chapter17. Formation of Wind warmer air = less dense = rising air warmer air = less dense = rising air (lower pressure) colder air = more.

Global Winds. Atmospheric Pressure  Wind is caused by differences in air pressure around earth’s surface.  Differences in air pressure are due to the.

Global and Local Winds. Why Air Moves Winds blow from areas of high pressure to areas of low pressure. The greater the pressure difference, the faster.

What causes winds? Uneven heating between the equatorial poles causes global winds. Since Earth is a sphere AND it is tilted on its axis, the sun’s energy.

WEATHER & BIOMES WHAT MAKES A BIOME THAT BIOME?. CLIMATE MOST IMPORTANT FACTORS ARE AIR TEMPERATURE & PRECIPITATION THE CHARACTERISTIC CONDITION OF THE.

Global Wind Patterns. What is Wind? Wind is the movement of air from an area of higher pressure to an area of lower pressure. Warmer air expands, becoming.

Global Winds. Air Movement Wind is the movement of air caused by differences in air pressure Wind ALWAYS moves from areas of high air pressure to areas.

THE THREE CELL MODEL;-FORMATION OF THE HADLEY CELL (1)

THE 3 CELL MODEL.

Atmospheric Circulation. The Earth’s energy is partly redistributed by atmospheric circulation. 1.Factors in the Cirulation of Air include; Pressure Gradient.

Winds Wind is the horizontal movement of air from an area of high pressure to an area of low pressure. All winds are caused by differences in air.

Movin' Around Students do not have to start a new page of notes but they can if they want.

1 0º Equator90º Pole LP HP  At the Equator the atmosphere is heated  Air becomes less dense and rises.  Rising air creates low pressure at the equator.

Global Winds and Jet Stream. Global Winds The trade winds blow from east to west in the tropical region. Westerly winds blow west to east in the temperate.

Wind. What causes wind? Differences in heat and pressure cause winds. Cold air is more dense and creates more pressure. Different parts of the Earth receive.

Atmospheric Circulation. Topic 2: Atmospheric Circulation You have seen that there is surplus energy at the equator and a deficiency at the poles. As.

Global Atmospheric Circulation

Lesson 1 Earth’s Atmosphere Lesson 2 Energy Transfer in the Atmosphere

Bell work Write a poem about moving air. The poem should include an explanation of why air moves.

Topic: What is Wind? PSSA: C / S8.D.2.1.

Weather Patterns and Climate Bates

Wind and the Coriolis Effect

Plane Spotting – do you know these airlines?

The Coriolis Effect.

Dynamics in Earth’s Atmosphere

Global & Local Winds.

Wind and the Coriolis Effect

15.3 Global Winds and Local Winds

Global Winds Chapter17.

Wind and the Coriolis Effect

Chapter 14 Section 3 Air Movement & Wind.

Weather Notes Part 3.

WEATHER AND CLIMATE PRESSURE AND WIND.

Earth’s Climate System Air and Ocean Circulation

Wind and the Coriolis Effect

Weather Systems 12.2.

Global and Local Winds Why does Air Move ?

Weather Patterns.

Presentation transcript:

Global Winds

GLOBAL PRESSURE EQUATORIAL LOW POLAR FRONT (LOW PRESSURE) (60°) TROPICAL HIGH (30°) POLAR HIGH Global circulation depends on differential heating over the globe. The system is driven by strong equatorial heating, causing LOW PRESSURE. Equatorial air rises, diverges and descends over the tropics, where HIGH PRESSURE dominates; where it diverges at ground level. This tropical air blows towards the equator, completing the equatorial cell, or towards the mid-latitides where it meets cold, dense polar air blown out from the polar HIGH PRESSURE. These contrasting tropical and polar air masses meet at the POLAR FRONT LOW PRESSURE BELT, where the warmer air is forced upwards by the polar air. At high level, this air again diverges towards the pole or to the tropic. Global circulation depends on differential heating over the globe. The system is driven by strong equatorial heating, causing LOW PRESSURE. Equatorial air rises, diverges and descends over the tropics, where HIGH PRESSURE dominates; where it diverges at ground level. This tropical air blows towards the equator, completing the equatorial cell, or towards the mid-latitides where it meets cold, dense polar air blown out from the polar HIGH PRESSURE. These contrasting tropical and polar air masses meet at the POLAR FRONT LOW PRESSURE BELT, where the warmer air is forced upwards by the polar air. At high level, this air again diverges towards the pole or to the tropic.

The Hadley Cell has air which rises at the equator (low pressure) and sinks at 30° latitude (high pressure) The resulting wind (which goes from high to low) is curved due to the Coriolis effect

GLOBAL PRESSURE BELTS & WIND EQUATORIAL LOW TROPICAL HIGH PRESSURE POLAR FRONT - LOW PRESSURE POLAR HIGH PRESSURE GLOBAL WIND BELTS (trade winds) are controlled by the major pressure belts, which are produced from differences in temperature and the spinning of the Earth. POLAR FRONT - LOW PRESSURE H H H H L L L

GLOBAL PRESSURE BELTS AND THE TRADEWINDS

GLOBAL WINDS AND AIR CIRCULATION

GLOBAL WINDS, CELLS, AND AIR CIRCULATION The primary circulation cells are called: The Polar Cell The Ferrel Cell and The Hadley Cell The circulation of the air and resulting winds are formed from differential heat and the spinning of the Earth which creates the permanent High and Low pressure regions