Impact of tropical storms

Description

Effects of tropical storms inc. Hurricane Katrina (MEDC) and Cyclone Nargis (LEDC) case studies
Jess Molyneux
Flashcards by Jess Molyneux, updated more than 1 year ago
Jess Molyneux
Created by Jess Molyneux over 8 years ago
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Resource summary

Question Answer
What are the physical effects of a tropical storm at landfall? (Hint: there are 9) Flooding - waves Lack of clean water (salt water, debris) Death, injury Destruction of property - homelessness Power cuts Lack of access / communications Resource loss - famine Disease
Name and locate a climatic hazard in an MEDC. (Bonus: when was this? Where did it hit and what was its subsequent path?) Hurricane Katrina August 2005 Hit coast of Florida then veered inland to Louisiana and New Orleans
What height did the waves caused by Hurricane Katrina reach? Over 40 ft
What speed did the gusts of Hurricane Katrina reach? Up to 215 mph
List some social impacts of Hurricane Katrina. (Hint: there are 6) Deaths (over 1,800) People traumatised Racial tensions exposed and intensified Population displaced and redistributed Insurance rates increased Contaminated water
How did the population of New Orleans change as a result of Hurricane Katrina? (Bonus: give a supporting date and figure) Reduced by half (200, 000 - January 2006)
How did the population of Louisiana change as a result of Hurricane Katrina? (Bonus: give a supporting date and figures) Declined by 4.7% Lost almost 220, 000 people (July 2006 - US census bureau)
How did the populations of Houston and Texas change as a result of Hurricane Katrina? Increased by 35, 000
List some economic impacts of Hurricane Katrina. (Hint: there are 4) Money spent on repairs and reconstruction Jobs lost Oil spills Home-owners' insurance premium increased
How much money did the Bush Administration seek following the storm? (Bonus: what was this for?) $105 billion for repairs and reconstruction
What costs did this figure not cover? Interruption of oil supply Destruction of Gulf Coast highway infrastructure Exports of commodities e.g. grain
What was the total economic impact of Hurricane Katrina in Louisiana and Mississippi? Over $150 billion
What was the cost of the destroyed forest land? $5 billion
List some environmental impacts of Hurricane Katrina. (Hint: there are 7) Forest destroyed Oil spills Damage to oil platforms and refineries Flooding Closure of 16 National Wildlife Refuges Habitat loss Beach erosion
In South-eastern Louisiana, how many facilities experienced oil spills? (Bonus: how much oil leaked?) 44 26 million litres
What made the flood waters particularly dangerous? Contained raw sewage, bacteria, heavy metals, pesticides, toxic chemicals and oil
How did they deal with the flood waters? (Bonus: how long did this take?) Pumped them into Lake Pontchartrain 43 days
How much forest land was destroyed? 1.3 million acres
Where did beach erosion occur? What were the consequences? Dauphin Island (90 miles east of landfall) Pushed towards land Sand transported into Mississippi Sound 217 sq miles transformed to water Loss of breeding ground for marine mammals
What prediction measures were in place for Hurricane Katrina? Hurricane hunters (planes drop sensors) National Hurricane Centre predicted 36 hours before storm hit
What warnings were issued for Hurricane Katrina? (Bonus: how effective were these warnings?) NHC - Hurricane watch - Gulf Coast NWS New Orleans - Warning bulletin State of emergency declared in Florida, Louisiana, Mississippi and Alabama 1.2 million people issued with evacuation warnings New Orleans mayor ordered evacuation (est. 80% heeded)
Give some examples of measures which the US Government and organisations took to manage the devastation which followed Hurricane Katrina. (Hint: there are 4) US Coast Guard called on 400+ reserve members Aircraft from Aviation training centre - rescue operations 57 emergency shelters (Louisiana Superdome - 26, 000 people) - coastal areas Closure of schools and businesses - Miami
Name and locate a climatic hazard in an LEDC. (Bonus: when was this? Where did it hit and what was its subsequent path?) Cyclone Nargis May 2008 Hit southwest Myanmar (country south west of Bangladesh) - moved inland but stayed along coast of Irrawaddy Delta
What height did the storm surges caused by Cyclone Nargis reach? 7.6 metres
What speed did the winds of Cyclone Nargis reach? 135 mph
How many people were severely affected by the cyclone? 2.4 million
What was the death toll of Cyclone Nargis? How many people were missing? Over 138,000 dead 50,000 missing
List 3 economic impacts of Cyclone Nargis. $10 billion worth of damage Majority lost harvests (= income) 75% of buildings collapsed (95% on Delta)
List 2 environmental impacts of Cyclone Nargis. Flood waters destroyed farmland (rice fields on Delta), livestock and fisheries Sewerage systems overwhelmed
What prediction measures were in place before Cyclone Nargis hit? American Typhoon Warning Centre in Hawaii monitored storm
What warnings were offered for Cyclone Nargis? (Hint: there are 2) Indian Meteorological Agency warned Burmese authorities of severity and location 48 hours before Asian Disaster Preparedness Centre provided Myanmar with model forecast 7 days in advance of storm
Why was the Government's response to Nargis not as good as could have been desired? Military Government (Junta) did not want foreign workers to enter country and destabilise political oppression - they initially refused aid
What help did Myanmar receive eventually? Food, medicine and basic supplies then later aid workers
What support did other countries give? (Hint: there are 5 examples, some with supporting detail) Italy - Food supplies Bangladesh - Experienced aid workers Indian army and navy - 140 tonnes of tents, blankets and medicine, 50 medical personnel, 2 hospitals UK - £17 million, relief team US - $41 million, American Red Cross helpers
What warnings were issued to the people of Myanmar? Some through the media - severity and course of action unclear
In what way was management of the disaster poor? (Hint: there are 4) Only 10% offered some form of aid - kept in major cities not rural areas Foreign workers very restricted Army harassed volunteers Journalists prevented from coverage
What factors worsened the impact of Nargis? (Hint: there are 3) Emergency services unprepared Inadequate protection in towns Destruction of natural defences
What had happened to the natural defences in Myanmar? Mangrove swamps destroyed and turned into money making areas (including 83% of those in affected areas) Natural barriers to stop storm surges (root systems slow water flow, catch material and absorb wave energy)
List some measures which may be put in place to cope with tropical storms and their effects. Educate people Plant trees along coast - shelter belt New levees (reduce impact of wind/surges) Tidal gates (closed to prevent flooding) Powerful pumps, above water supply
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