Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water...

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Clouds

Transcript of Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water...

Page 1: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Clouds

Page 2: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Water is strange stuff!

• Gas - water vapour (invisible)

• Liquid - water droplets (visible)

• Solid - ice crystals, hail, snow

Water can occur in 3 states:

Page 3: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

What are clouds?

• Clouds are formed of tiny droplets of water or ice.

• Clouds form when water vapour cools and condenses.

• The temperature at which condensation occurs is called dew point.

• Condensation also requires nucleii (small particles) such as dust.

Page 4: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

What happens when air is cooled?

• Relative humidity increases.• Dew point is reached (100% relative

humidity).• Water vapour (invisible) condenses to

form water droplets (visible).• Sometimes the water vapor may

change straight into solid state: called Deposition.

Page 5: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

• Localized convective lifting occurs where unequal surface heating causes pockets of air to rise because of their buoyancy.

◆Localized Convective Lifting

Page 6: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

◆ Convergence• Convergence is when air flows together and rises.

Processes that lift air

Cloud Formation

Page 7: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Orographic Lifting

• Orographic lifting occurs when mountains act as barriers to the flow of air, forcing the air to ascend. The air cools adiabatically; clouds and precipitation may result.

Page 8: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Cloud Formation

• When air is allowed to expand, it cools, and when it is compressed, it warms.

◆ Adiabatic Temperature Changes

• Dry adiabatic rate is the rate of cooling or heating that applies only to unsaturated air.

◆ Expansion and Cooling

• Wet adiabatic rate is the rate of adiabatic temperature change in saturated air.

Air Compression and Expansion

Page 9: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Cloud Formation by Adiabatic Cooling

Page 10: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature
Page 11: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Cloud Formation

• A front is the boundary between two adjoining air masses having contrasting characteristics.

◆ Frontal Wedging

Processes That Lift Air

Page 12: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Cloud Types and Precipitation

◆ Clouds are classified on the basis of their form and height.• Cirrus (cirrus = curl of hair) are clouds that are

high, white, and thin.• Cumulus (cumulus = a pile) are clouds that

consist of rounded individual cloud masses.• Stratus (stratus = a layer) are clouds best

described as sheets or layers that cover much or all of the sky.

Types of Clouds

Page 13: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Clouds can be classified by their shape and height

Flat clouds eg Stratus (St)

Fluffy cloudseg Cumulus (Cu)

Wispy cloudseg Cirrus (Ci)

Cloud shapes

Page 14: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Clouds can also be classified by height of cloudbase

Low level (below 2000m) eg stratus

Middle level - alto (2,000 to 6, 000m) eg alto-cumulus

High level - cirro (above 6,000m) eg cirrus

Cloud heights

Page 15: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Cloud Classification

Page 16: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Spot the cloud!

Low and flat …..

Stratus

Page 17: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Spot the cloud!Middle level, fluffy …..

Alto -Cumulus

Page 18: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Spot the cloud!

High level, wispy …..

Cirrus

Page 19: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

Spot the cloud!Rain bearing, storm clouds …..

Cumulonimbus

Page 20: Clouds - Science WITH Mr. dvorin · What are clouds? •Clouds are formed of tiny droplets of water or ice. •Clouds form when water vapour cools and condenses. •The temperature

World cloud patterns

Can you explain the major world cloud belts?


Clouds - Metlink...Cirrus made by an aeroplane (aircraft contrail cirrus) Clouds Cumulus 1 Clouds Cumulus 2 Clouds Cumulus 3 Clouds Nimbostratus Clouds Nimbostratus with rainbow Clouds

Clouds - Metlink...Cirrus made by an aeroplane (aircraft contrail cirrus) Clouds Cumulus 1 Clouds Cumulus 2 Clouds Cumulus 3 Clouds Nimbostratus Clouds Nimbostratus with rainbow Clouds

Artic - porcelanatoliquido.net · 4807126 -free-sky-wallpaper jpg clouds clouds texture6118jpg clouds clouds clouds clouds texture6110.jpg clouds texturE6115jpg clouds texture6120.jpg

Artic - porcelanatoliquido.net · 4807126 -free-sky-wallpaper jpg clouds clouds texture6118jpg clouds clouds clouds clouds texture6110.jpg clouds texturE6115jpg clouds texture6120.jpg

Clouds are collections of tiny ice crystals or water droplets. All air contains water vapor. When the air cools water vapor condenses. This condensed.

Clouds are collections of tiny ice crystals or water droplets. All air contains water vapor. When the air cools water vapor condenses. This condensed.

Clouds. What is a cloud? Warm air contains water vapor The air cools as it rises The water condenses around a solid object, such as dust or smoke, and.

Clouds. What is a cloud? Warm air contains water vapor The air cools as it rises The water condenses around a solid object, such as dust or smoke, and.

Thunderstorms, Tornadoes, Derochos and …...Thunderstorms As the air rises, moisture condenses and clouds form Too fast for precipitation Kept aloft by updraft. Entrainment Heavy

Thunderstorms, Tornadoes, Derochos and …...Thunderstorms As the air rises, moisture condenses and clouds form Too fast for precipitation Kept aloft by updraft. Entrainment Heavy

Dung-Hai Lee U.C. Berkeley Quantum state that never condenses Condense = develop some kind of order.

Dung-Hai Lee U.C. Berkeley Quantum state that never condenses Condense = develop some kind of order.

The Effects of Artificial Clouds on Climateartificialclouds.com/artificial-clouds-and-climate-change.pdf · The Effects of Artificial Clouds on Climate ... CLOUDS AFFECT AIR TEMPERATURE,

The Effects of Artificial Clouds on Climateartificialclouds.com/artificial-clouds-and-climate-change.pdf · The Effects of Artificial Clouds on Climate ... CLOUDS AFFECT AIR TEMPERATURE,

A REVIEW CGF3M TUES. DEC. 17, 2013 Hurricanes. How do Hurricanes Form? Warm moist air from the ocean rises and condenses into clouds Winds near the equator.

A REVIEW CGF3M TUES. DEC. 17, 2013 Hurricanes. How do Hurricanes Form? Warm moist air from the ocean rises and condenses into clouds Winds near the equator.

Billy Joel condenses the Cold War in under five minutes.

Billy Joel condenses the Cold War in under five minutes.

CELL REPRODUCTION: MITOSIS INTERPHASE: DNA replicates PROPHASE: Chromatin condenses into chromosomes, centrioles start migrating METAPHASE: chromosomes.

CELL REPRODUCTION: MITOSIS INTERPHASE: DNA replicates PROPHASE: Chromatin condenses into chromosomes, centrioles start migrating METAPHASE: chromosomes.

The Sun and The Water Cycle Grades 3-5. Water Cycle Changes to water when it evaporates into the air, condenses into clouds, and then precipitates back.

The Sun and The Water Cycle Grades 3-5. Water Cycle Changes to water when it evaporates into the air, condenses into clouds, and then precipitates back.

A cloud is actually a large group of tiny water droplets ...€¦ · Clouds are formed when water on Earth evaporates, goes up into the sky and condenses in the cooler air. There

A cloud is actually a large group of tiny water droplets ...€¦ · Clouds are formed when water on Earth evaporates, goes up into the sky and condenses in the cooler air. There

The invigoration of deep convective clouds over the ...€¦ · undetectable clouds (the abovementioned small clouds or clouds with weak optical signature) decreases as a function

The invigoration of deep convective clouds over the ...€¦ · undetectable clouds (the abovementioned small clouds or clouds with weak optical signature) decreases as a function

Formation of Clouds/Types of Clouds

Formation of Clouds/Types of Clouds

Clouds, Clouds, and more Clouds!

Clouds, Clouds, and more Clouds!

THE WATER CYCLE 1. Water evaporates 2. Water vapour is carried up into the air. 55 44 33 22 11 3. Water vapour condenses to form clouds 4. Rain water.

THE WATER CYCLE 1. Water evaporates 2. Water vapour is carried up into the air. 55 44 33 22 11 3. Water vapour condenses to form clouds 4. Rain water.

Clouds Finding Out What Clouds Are All About. Cirrus Clouds.

Clouds Finding Out What Clouds Are All About. Cirrus Clouds.

Condensation Condensation Nuclei · Condensation Nuclei 6Dew condenses on vegetation and other objects close to the ground 6In the atmosphere, water condenses on condensation nuclei

Condensation Condensation Nuclei · Condensation Nuclei 6Dew condenses on vegetation and other objects close to the ground 6In the atmosphere, water condenses on condensation nuclei

GET WATER WISE · WATER WISE WITH Flixies Crox Braxie Lexie AILABLE rikaans nglish Evaporation Heat from the sun causes water to evaporate. Water vapour rises and condenses as clouds.

GET WATER WISE · WATER WISE WITH Flixies Crox Braxie Lexie AILABLE rikaans nglish Evaporation Heat from the sun causes water to evaporate. Water vapour rises and condenses as clouds.

Clouds, Rain, Clouds Againstatic.nsta.org › pdfs › samples › PB330X7web.pdfSummary: “In Clouds, rain, clouds again, the reader receives a simplified picture of the water cycle:

Clouds, Rain, Clouds Againstatic.nsta.org › pdfs › samples › PB330X7web.pdfSummary: “In Clouds, rain, clouds again, the reader receives a simplified picture of the water cycle: