4c_group1_tropicalcyclone To Be Presented

Geography Project Burma (Tropical Cyclones)

Group members Chan Siu Chung (1) Cheung Chin To (2) Cheung Ka Lun (3) Yu Ngai Chung (19) Chan Lai Chu (20) Chiu Cheuk Yan (21) Hui Ching Yan (22

Group

1

What is Tropical Cyclone ? A gigantic mass of revolving moist air A storm system - Low pressure centre - Numerous thunderstorms

- area of low atmospheric pressure near the Earth’s surface - Driven by the release of large amounts of latent heat of condensation Fig.1

Moist air

Heat is released + Water Vapour in the air condenses

• Heat - distributed vertically around the centre of the storm

• The environment inside the cyclone is warmer Warmer

The structure of tropical cyclone

• divided into - Rain bands - Eye

Rain bands: - Bands of showers and thunderstorms - Spiral cyclonically toward the centre - Tornadoes often form in them Eye: - The centre of a tropical cyclone - An area of sinking area - Circular in shape

Tropical Cyclones Cyclone Nargis - Category 4 cyclone - a strong Tropical Cyclones (caused the deadliest natural disaster)

Many areas suffered 1) Yangon 2) Pegu 3) Mon 4) Ayeyarwady

Cyclone Nargis - Occurred on 3rd May , 2008

How was the

Cyclone Nargis formed?

•

developed on April 27 in the central area of Bay of Bengal

•

tracked slowly northwestward quickly strengthened

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dry air weakened the cyclone on April 29 beginning a steady eastward motion

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intensified to attain peak winds of at least 165 km/h (105 mph) on May 2

• assessed peak winds of 215 km/h (135 mph) • moved ashore in the Ayeyarwady Division of Burma near peak intensity • after passing near the major city of Rangoon the storm gradually weakened until dissipating near the border of Burma and Thailand

Cyclone Nargis impact 'bigger than tsunami'

economic loss blocked roads

landslides

deaths & casualties

Effects homeless

flooding felled trees food shortage

Flooding

Fishing boats in Rangoon harbor destroyed by the storm Monks wade through floodwaters in Rangoon

Before

Cyclone Nargis Floods Burma

After

Damages • At least 134,000 people (dead or missing) • Estimate total number severely affected:2.4 million people • $10 billion loss • Basic infrastructures (e.g. buildings, hospitals) were destroyed

 Famine

Residents line up to get rice after cyclone Nargis hit the town of Phyar Pon

 The influence of the cyclone lowered temperatures along the Indian coastline

How should the world respond to Burma? ★intensify international economic and poltical pressure on junta leaders ★Provide aid ★Donate money ★Help with the recover work ★Supply resources

Reference http://en.wikipedia.org/wiki/Burma http://en.wikipedia.org/wiki/Cyclone_Nargis http:// www.lib.utexas.edu/maps/burma.html

THE END