Download - Coastal Erosion- M Shahriar Sonet
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COASTAL EROSION
M SHAHRIAR SONET
ID 16131034
Disaster & Human Security Management
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Content
DEFINITION
WAYS OF COASTAL EROSION
CAUSES OF COASTAL EROSION
COASTAL EROSION IN BANGLADESH
COASTAL EROSION IN OTHERS COUNTRIES
MITIGATION
CONCLUSION
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Definition
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How
coastal
erosion
happen?
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WAYS OF
COASTAL
EROSION
Wave Action
Corrasion
Attrition
Solution
Hydraulic action
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Co
rra
sio
n
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Att
ritio
n
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So
lutio
n
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Hy
dra
ulic
ac
tio
n
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Mitigation
Natural
• 1. Sea level rise
• 2. Tidal wave
• 3. High wind
Human made
• 1. Deforestation
• 2. Transportation process in the coastal area and in the sea
Causes of Coastal Erosion
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Food cycle in coastal area
Biodiversity
Degrade water quality
Displacement
Diseases & change of fishery species
Siltation
Impacts of Coastal
Erosion
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Coastal Erosion in
Bangladesh
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Coastal Zones of
Bangladesh
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IMPACTS
IMPACTS OF COASTAL EROSION IN
BANGLADESH
o Heavy discharge through the GBM river system
o Wave action due to strong Southwest monsoon
o High astronomical tides
o Strom surges in the BOB
o Deforestation o Hill cutting activities
o Municipal/ urban wastes
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COASTAL EROSION IN OTHERS COUNTRIES
o England
o Malibu
o Santa Barbara
o Malta
o Devil’s slide
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Santa Barbara Fort Ricasoli in Kalkara, Malta Malibu
Devil’s Slide
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Afforestation in the coastal area
Stone and boulders embankment
River water flow monitoring.
Control/proper plan & management of human
activities (Hill cutting, Deforestation, Ship breaking
etc)
Urban soil deposition and treatment
Mitigation
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CONLCUSION
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ANY QUESTION?
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