The Impacts of Tropical Cyclones on the Community.
There a countless ways a community may be affected tropical cyclones. The impacts of major cyclones in Australian history such as Cyclone Larry, Tracy and Yasi are categorised into 3 main points.
- Socially - community
- Economically - money
- Environmentally - land
Tropical cyclones impact heavily on society in many ways, economically, socially and environmentally. When a tropical cyclone passes through, it takes the lives of many and destroys everything it comes in contact with. Depression, destruction and death are also all impacts of this destructible natural hazard.
There have been many disastrous tropical cyclones that have occurred throughout Australia's history. These have caused billions of dollars in damage and kill about 10,000 people. However, there are positive consequences once a cyclone has passed through a region. Some examples include, much needed rain filling water supplies and saving crops in drought affected areas.
The winds of a tropical cyclone, are generally greater then 90 kilometres per hour, sometimes reaching up to 280 kilometres per hour. They can cause major damage because of the flying debris. They can also create devastation for boats docking in the sea and serious erosion of the shoreline. Heavy rain and flooding also contribute to the impact that tropical cyclones have. Tropical cyclones on the coastline can also produce storm surges. A storm surge is when a dome of risen sea water is above the usual tide level and as a cyclone moves over the water dome it falls back down to the previous sea level, causing a big wave hitting the shoreline, flooding the coast. If a storm surge occurs, the sea water mixes with the fresh water, leaving nothing for us to drink. Different materials are blown into water supplies, the water become contaminated. This is also a major impact cyclones have on the community with involves lie and death.
The extent of the impact of a tropical cyclone is also affected by:
* The concentration of the human population.
* The availability of warning systems.
* The design of buildings in the community and their ability to cope with strong winds.
* How prepared a community is.
There have been many disastrous tropical cyclones that have occurred throughout Australia's history. These have caused billions of dollars in damage and kill about 10,000 people. However, there are positive consequences once a cyclone has passed through a region. Some examples include, much needed rain filling water supplies and saving crops in drought affected areas.
The winds of a tropical cyclone, are generally greater then 90 kilometres per hour, sometimes reaching up to 280 kilometres per hour. They can cause major damage because of the flying debris. They can also create devastation for boats docking in the sea and serious erosion of the shoreline. Heavy rain and flooding also contribute to the impact that tropical cyclones have. Tropical cyclones on the coastline can also produce storm surges. A storm surge is when a dome of risen sea water is above the usual tide level and as a cyclone moves over the water dome it falls back down to the previous sea level, causing a big wave hitting the shoreline, flooding the coast. If a storm surge occurs, the sea water mixes with the fresh water, leaving nothing for us to drink. Different materials are blown into water supplies, the water become contaminated. This is also a major impact cyclones have on the community with involves lie and death.
The extent of the impact of a tropical cyclone is also affected by:
* The concentration of the human population.
* The availability of warning systems.
* The design of buildings in the community and their ability to cope with strong winds.
* How prepared a community is.
Did you Know?
The warm moisture from oceans rises high in the atmosphere. Then the winds begin to circle. They circle clockwise in the south of the equator and counter clockwise north of it.