WIND What is WIND The movement of air

  • Slides: 25
Download presentation
WIND

WIND

What is WIND? • The movement of air molecules in the atmosphere • Air

What is WIND? • The movement of air molecules in the atmosphere • Air moves from regions of HIGH PRESSURE to regions of LOW PRESSURE

Types of WIND 1. GLOBAL- wind that moves across our entire planet; cover large

Types of WIND 1. GLOBAL- wind that moves across our entire planet; cover large areas, blow in the same direction and at the same speed, may not be felt on the ground 2. LOCAL- wind that moves over small areas, they change direction and speed very often, they blow in the atmosphere; can be felt on the ground

How do we measure WIND ANEMOMETER WIND VANE

How do we measure WIND ANEMOMETER WIND VANE

How are WINDS named ? • For the direction they come FROM

How are WINDS named ? • For the direction they come FROM

If Earth Didn’t Rotate:

If Earth Didn’t Rotate:

A single circulation cell would exist in each hemisphere.

A single circulation cell would exist in each hemisphere.

But it does, so:

But it does, so:

At the Equator: • Atmosphere is heated • Warm air rises, b/c less dense

At the Equator: • Atmosphere is heated • Warm air rises, b/c less dense • Creating low pressure • Water vapor condenses • Creating high rainfall • Air descends back to surface at 30° N/S

At 30° N/S • Cool , dry air descends • Air separates or diverges

At 30° N/S • Cool , dry air descends • Air separates or diverges • “Horse” Latitudes, little or no wind • Great deserts of the Earth here • High Pressure

At 60° N/S is a Polar Front • Cold air from poles meets up

At 60° N/S is a Polar Front • Cold air from poles meets up with warmer air from mid latitudes • Stormy area • Converging, rising air • Low pressure • Creates polar jet stream

The Corilois Effect • Turns wind to ITS right in North • Turns wind

The Corilois Effect • Turns wind to ITS right in North • Turns wind to ITS left in South

Local Winds • Caused by presence of large body of water • Caused by

Local Winds • Caused by presence of large body of water • Caused by changes in elevation • These create local differences in AIR PRESSURE

Daytime= Sea Breeze

Daytime= Sea Breeze

Night = Land Breeze

Night = Land Breeze

Ocean Grove Streets

Ocean Grove Streets

Day = Valley Breeze

Day = Valley Breeze

Night = mountain breeze

Night = mountain breeze

Wind Definition Air movement The movement of airWind Definition Air movement The movement of air
Wind What is Wind Wind Wind is movingWind What is Wind Wind Wind is moving
WIND Wind is the movement of air ItWIND Wind is the movement of air It
Wind Climate Wind the horizontal movement of airWind Climate Wind the horizontal movement of air
WIND What is wind moving air horizontal movementWIND What is wind moving air horizontal movement
Movement Through Fluids Air Water Movement Through AirMovement Through Fluids Air Water Movement Through Air
Wind EQ What is wind Wind is airWind EQ What is wind Wind is air
Wind EQ What is wind Wind is airWind EQ What is wind Wind is air
Wind What is wind Wind is air inWind What is wind Wind is air in
Masses of air Movement of air Wind EarthMasses of air Movement of air Wind Earth
Winds The Movement of Air Wind Air inWinds The Movement of Air Wind Air in
Air Pressure and Wind 1 wind Air thatAir Pressure and Wind 1 wind Air that
Wind Unit 7 Wind and Air Pressure AirWind Unit 7 Wind and Air Pressure Air
Wind Moving air Why air moves Wind isWind Moving air Why air moves Wind is
Movement of Air Air Masses Winds Air MassesMovement of Air Air Masses Winds Air Masses
Air Pressure and Wind Air Pressure Air PressureAir Pressure and Wind Air Pressure Air Pressure
Terobosan Teknologi Air Air Antioksidan Air Alkalis AirTerobosan Teknologi Air Air Antioksidan Air Alkalis Air
Air Pollution Air Pollution air pollution air pollutionAir Pollution Air Pollution air pollution air pollution
Air Pressure Air Masses Air Pressure Air pressureAir Pressure Air Masses Air Pressure Air pressure
Aligarh Movement Aligarh Movement v Aligarh movement wasAligarh Movement Aligarh Movement v Aligarh movement was
MOVEMENT WHEEL LOCOMOTOR Movement with travel NONLOCOMOTOR MovementMOVEMENT WHEEL LOCOMOTOR Movement with travel NONLOCOMOTOR Movement
Defense Defense Defense Defense Defense Movement Movement MovementDefense Defense Defense Defense Defense Movement Movement Movement
Movement Assessment Battery for Children Movement ABC MovementMovement Assessment Battery for Children Movement ABC Movement
Aligarh Movement Aligarh Movement v Aligarh movement wasAligarh Movement Aligarh Movement v Aligarh movement was