Flooding

Question 1

Mississippi 1993

Deaths

Answer 1

Mississippi 1993

48 dead

Question 2

Mississippi 1993

Human Causes

Answer 2

Mississippi 1993

Wing dykes (narrow channel)
Concrete lining
Levees (1600km straightjacketing) - 150 collapsed

Urban dev (New Orleans)
Shortened 150km (lag time down)
Drained 80% wetlands 1940 (storage)

Question 3

Mississippi 1993

Physical Causes

Answer 3

Mississippi 1993

Record rainfall (since 1875) - 3 months continuous April-Summer

Discharge 1070 000

1-100 year scale (happen anyway)

Question 4

Mississippi 1993

Cost

Management

Answer 4

Mississippi 1993

$10 billion

70000 evac
750000 sand bags
Valmeyer (2 miles E, 400ft up) - FEMA relocated 8200 families

Insurance promoted (only 20% 1993)
Civil Air Patrol
Nat Guard

Question 5

Cyclone Sidr 2007

Risk

Where

Answer 5

Cyclone Sidr 2007

Bangladesh

All below 12m above sea
Biannual floods
40% cyclone (wind up to 160mph)
Most densely pop in world
Bay Of Bengal funnel shape
2/5 unable to afford healthy lifestyle

Question 6

Cyclone Sidr 2007

Cost

Death

Env impacts

Answer 6

Cyclone Sidr 2007

$140 million

3447 dead

Water contaminated
Sewerage lines cut
200 fish species
400 bird
31% Sunderban Mangrove
Coral reefs

Question 7

Cyclone Sidr 2007

PPR

Answer 7

Cyclone Sidr 2007

Cyclone is walls (trees)

Norway gave 4 water treatment plants

WFP 400000 rations

Red Cross 925 homes

World Bank £250 million