Water, Landforms & People Exam Revision: Use pgs 20-39 & your classwork to fill in the gaps. Answer the questions on pg 40.
Location: Mississippi, the USA an MEDC and Bangladesh an LEDC
What does the case study show? Comparing a flood in an MEDC and LEDC
The causes and effects of floods on people
What can be done to protect the areas from flooding
Causes of the Mississippi River
Flood in 1993
 Heavy rainfall led to the
ground being saturated.

Effects of the Mississippi
Flood:
Causes of the Bangladesh
Effects of the Bangladesh Flood:
Coast Flood in 1991:
 150000 dead.
 Bangladesh is low
 500000 cattle dead.
lying 25% is under
 A year’s supply of crops lost
1m above sea level.
so people starved.
 Silt from the
 Fishing boats lost so people
Himalayas blocks the
starved.
rivers in Bangladesh
 Disease from contaminated
 3 major rivers join
water.
together.
 Electricity supplies and roads
 Tropical Cyclones
cut off.
push the seawater
 Millions of homes destroyed.
towards the coast.
 Destroyed the ability of
 No warning
people to earn a living or
 High population in
survive.
the area.
 Snow melting in the
Himalayas ends up in
Bangladesh.
Solutions:
Solutions:
 An early warning system so people can leave the danger area.
 An early warning system so people can leave the danger area
 Hard engineering -Dam to control the flow of water or changing
 Dredge the river Ganges to remove silt to allow more water
the river direction.
to exit the river.
 Soft engineering – Anything to naturally increase the lag time.
 Build flood shelters in low-lying areas for people to go to
Plant trees to increase interception of rain. Leave land as grass
when there is a flood warning.
instead of concrete. Allow drainage pipes to go into the soil
 Build flood proof houses on stilts above the likely level of a
instead of into rivers.
flood
Water, Landforms & People Exam Revision: Use pgs 20-39 & your classwork to fill in the gaps. Answer the questions on pg 40.
The human causes of floods:
The physical causes of floods:
Draw and label a storm hydrograph:
The factors that affect the steepness of the hydrograph:
The hard engineering solutions to floods:
The soft engineering solutions to floods: