Bangladesh Storm surges Flashcards
1
Q
Why is bangladesh vulnerable to the impacts of storm surges?
A
- much of the country is low lying, 1-3m above sea level
- Incoming storm surges meet out flowing river discharge of the ganges, so river and coastal flooding combine
- intense rainfall from tropical cyclones contribute to flooding
- must of the coastline is unconsolidated sediment, susceptible to erosion
- deforestation of mangroves has removed vegetation which once dissipated energy during storm surges
2
Q
How have death tolls of bangladesh storm surges changed over time?
A
Decreased from 300,000-500,000 to 15000 from 1970 to 2017, with a higher wind speed of 260 compared to 205km/h.
economic loss increased from $90million to $1.7 billion
3
Q
Why has the death toll fallen?
A
- muh improved warnings
- construction of cyclone shelters
- better aid response
