Causes of Coastal Flooding
- Coastal flooding results from a number of factors:
- Storm surges - a rapid rise in sea level caused by really low-pressure storms (e.g. tropical storm)
- Storm tides - occur when there is a combination of high tide and low-pressure storm
- Tsunamis - large sea waves due to underwater earthquakes. The closer to the coast, the bigger the impact
- King tides
- Sea level rise due to global warming
- High river discharge after a storm - when combined with a spring tide, water in the estuary cannot discharge into the sea causing a backflow of water and flooding
- The worst flooding arises from a combination of any of these
- The biggest impacts are felt by emerging countries, although the biggest economic cost is are to developed countries