Geography 🌋 Flashcards
When did hurricane Katrina happen?
23rd August 2005- 31st August 2005
What category did hurricane Katrina reach?
Category 3
What were Katrina’s winds speeds?
140 mph
Why are some regions more vulnerable to tropical storms than others + can you name any
areas of poverty / with poor construction are more easily damaged ( east coast of America e.g Florida )
What are some methods of planning for hurricanes
Weather forecasting , warning of evacuations, storm surge defences
How are hurricanes managed?
Build homes away from high risk areas , plan evacuation routes
What are some migration push factors
Political factors , not enough jobs , wars , natural disasters
What are some migration pull factors
Better way of life , chances for a job
What conditions are needed for a hurricane to form
High sea temps above 27 degrees, low pressure- warm moist air, sea deeper than 60 meters , 74 mph winds
How fast do the winds to be to reach category 1 hurricane?
74 mph
How many categories are there?
5
Name a famous hurricane
Katrina, Ian
What is the equation for natural increase
Birth rate - death rate
What are some physical barrier of migration
Mountain ranges, international borders, immigration restrictions.
When did the world’s population reach 1 billion?
1820
What are some words to describe growth on a graph?
Slow growth , rapid growth, increased growth ( population ) explosion !
What are some ways to describe population
Sparsely , densely, clumped, random, unfirom
Why do tropical storms decay over land?
They no longer are receiving the energy and moisture from the ocean that they need
Characteristics of tropical storms
Strong winds, heavy rainfall, storm surges, coastal flooding
Different location names for tropical cyclones
Hurricane- Atlantic and north east pacific oceans
Tropical cyclone -south West Indian Ocean
Typhoon - north west Pacific Ocean
Physical hazards of storms
Landslides,costal flooding, storm surges, intense rainfall, high winds
How are tropical cyclones measured?
Saffir Simpson winds scale. Measured diameter in km
Social effects of hurricane Katrina
Homelessness, jobless, separated some from relatives, some suffered loss
Economic effects of Katrina
City lost 95,000 jobs. Cost the state billions of dollars
Environmental effects of Katrina
Oil spill, debris, damaged sewage and water systems, flooding, storms
Aging population
Increase of number of older people within a population
Types of migrants
Asylum seekers, refugees, international migrants, internal migrants, illegal migrants
