ON
FLOOD
SUBMITTED TO
DR. KHAIRUL BASHAR
COURSE NO: GS 410
SUBMITTED BY
Ashraful Arefin
4th year (Hons)
Session: 2003-2004
DEPARTMENT OF GEOLOGICAL SCIENCES
JAHANGIRNAGAR UNIVERSITY
SAVAR, DHAKA
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CONTENTS
Questions:
1. What is flood?
2. What are the causes of floods?
3. What are different types of flood?
4. What are the effects of flood?
5. Discuss the different methods of control and prevention of flood.
6. How flood can be predicted? Discuss prediction of flood frequency, prediction of flow duration, flood routing and catchments basin modeling.
7. Discuss the –
i. Extend of flooding ii. Measures taken to control flooding iii. Advantages of measures taken iv. Disadvantages of the measures taken for follow two rivers
a. Mississippi river
b. Kissimmee river
8. What are the causes of flooding in Bangladesh?
9. How the floods of Bangladesh can be controlled?
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Flood
A flood is relatively high flow of stream or tidal water that overtops the natural or artificial banks in any of the reaches of a stream plain or coastal plain.
A flood is an overflow of an expanse of water that submerges land, a deluge. In the sense of "flowing water", the word may also be applied to the inflow of the tide.
Flooding may result from the volume of water within a body of water, such as a river or lake, which overflows, with the result that some of the water escapes its normal boundaries.
Flooding happens when a river has too much water in its channel. The water breaks through the river banks and spreads over the surrounding land. (Flood Wikipedia, the free encyclopedia)
Causes of floods
Causes or origin of flooding can divide by two ways:
a. Geological causes
b. Human activity causes
Geological causes
Excessive precipitation
Snow melt
Ice dams melts
Landslides
Glaciers melt
Global-warming sea-level rise
Natural disequilibrium in the rate of sediment supply causes the shifting of
the
References: Islam, N. (1998) Alternative to flood control: The case of Bangladesh. Khalequzzaman, M. Flood control in Bangladesh trough best management practices. Watson, I. &Burnett, A.D. Hydrology 26 | P a g e