FLOODS Done by:Farizan, Farah,Angie, Si Hui,Amirah

What are Floods? an overflow of water a form of natural disaster happens when there is too much rain water from the river bank overflows caused by heavy rains,tides,storms,hazzards etc.

an overflow of water

a form of natural disaster

happens when there is too much rain

water from the river bank overflows

caused by heavy rains,tides,storms,hazzards etc.

Types of Floods... Riverine floods [fast/slow] Estuarine floods Coastal floods Catastrophic floods Muddy floods

Riverine floods [fast/slow]

Estuarine floods

Coastal floods

Catastrophic floods

Muddy floods

Causes of floods... Heavy rains from monsoons,hurricanes and tropical depression Intense thunderstorm Sea tidal and storm-forced winds Sea storms,hurricanes,tsunami

Heavy rains from monsoons,hurricanes and tropical depression

Intense thunderstorm

Sea tidal and storm-forced winds

Sea storms,hurricanes,tsunami

Consequences of Floods... Primary Effects Physical damage [structure] Casualties [death ] Secondary Effets Water supplies[contaminated] Diseases Food supplies[crops] Trees

Primary Effects

Physical damage [structure]

Casualties [death ]

Secondary Effets

Water supplies[contaminated]

Diseases

Food supplies[crops]

Trees

Benifits of floods... soil becomes more fertile providing nutrients Therefore,crops can grow

soil becomes more fertile

providing nutrients

Therefore,crops can grow

What have been done... Coastal defences have been made -sea walls,beach nourishment etc. Barriers were built Flood gates were constructed

Coastal defences have been made

-sea walls,beach nourishment etc.

Barriers were built

Flood gates were constructed

Where do floods occur... China North Vietnam Romania Netherlands Bangladesh etc.

China

North Vietnam

Romania

Netherlands

Bangladesh

etc.

Floods in Bangladesh.. Monsoon floods happens due to four rivers [Brahmaputra,Meghna,Ganges,Wang] occured in 1987,1988,1998,2007 a total of 298 people passed away and 10,211,780 people were badly affected Aproximately 59 000 houses were damaged

Monsoon floods

happens due to four rivers [Brahmaputra,Meghna,Ganges,Wang]

occured in 1987,1988,1998,2007

a total of 298 people passed away and 10,211,780 people were badly affected

Aproximately 59 000 houses were damaged

Bangladesh... remains a developing nation too many people [population] mostly work as farmers inefficient use of energy resoyrces insufficient power supllies

remains a developing nation

too many people [population]

mostly work as farmers

inefficient use of energy resoyrces

insufficient power supllies

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