EXTREME NATURAL EVENTS - Hurricanes
What is a Hurricane?
A powerful storm that originates in tropical areas with:
A powerful storm that originates in tropical areas with:
- very low pressure (as low as 880 millibars)
- extremely high winds (may exceed 200 kph)
- heavy rainfall
Weather Maps
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What is the weather like today?
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Processes that produce a Hurricane
A Hurricane = Warm Ocean + Air Convection (ITCZ) + Rising Moist Air + Coriolis Effect + Jet Stream
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Coriolis Effect - click here for an animation explaining it. Jet Stream - Click here to see the Jet Stream over North America. Click here to see the Jet Stream over NZ and Australia. |
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Processes that produced HURRICANE KATRINA You need to know what processes produced Hurricane Katrina. Look back over your note to make sure you know what happened. You need to know facts e.g. dates, water temperature, wind speed, hurricane categories, place names. Use the 'timeline' in your notes to help. This animation from the BBC explains the processes very clearly. This below, from National Geographic, also helps explain the process day by day. |
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The vulnerability of southeastern USA to HURRICANE KATRINA
There are many reasons that the southeastern USA region is vulnerable to Hurricanes.
These can be divided into NATURAL reasons and CULTURAL reasons.
Go back to your notes in class to remind yourself about this information.
You can watch a video on the vulnerability by clicking here.
These can be divided into NATURAL reasons and CULTURAL reasons.
Go back to your notes in class to remind yourself about this information.
You can watch a video on the vulnerability by clicking here.
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VIDEO - you watched this video in class ('Hurricane Katrina - the storm that drowned a city'). If you missed part of this video, you can see it again on the right. |
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Effects of HURRICANE KATRINA on the Cultural Environment
There are many effects of Hurricane Katrina on the Cultural Environment which can be classified into:
•Social Effects and economic effects
•Positive effects and negative effects
•Short Term effects (days and months) and long term effects (recovery and rehabilitation - years)
Use the videos below to help you understand specific information on the effects of the Cultural Environment, as well as these links:
1. Hurricane Katrina then and now - click here.
2. New Orleans 8 years after Hurricane Katrina - click here
3. Article: Eight years after Hurricane Katrina - click here
4. Reconstruction of New Orleans - click here
•Social Effects and economic effects
•Positive effects and negative effects
•Short Term effects (days and months) and long term effects (recovery and rehabilitation - years)
Use the videos below to help you understand specific information on the effects of the Cultural Environment, as well as these links:
1. Hurricane Katrina then and now - click here.
2. New Orleans 8 years after Hurricane Katrina - click here
3. Article: Eight years after Hurricane Katrina - click here
4. Reconstruction of New Orleans - click here
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Effects of HURRICANE KATRINA on the Natural Environment
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Use the links below to help you fill out the chart about the effects of Hurricane Katrina on the different parts of the environment (as well as searching for your own information):
a) Northern Chandeleur Islands - Before and After images (remember to focus ONLY on the environment) - click here. b) Environmental Impacts of Hurricane Katrina - click here. c) Ecological impacts - click here d) Impact on the wetlands - click here. e) Video on the impacts on wetlands - click here. f) Lost Swamps, Crops and Islands - click here. g) Dauphin Island, Alabama, impacts - click here |
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How people responded to Hurricane Katrina
TASK: you are to work in groups (you will be given a group (A - H) by your teacher.
When you know what group you are in, you are to click on the correct link below. It will take you to a Document in GOOGLE DRIVE (you need to be logged into AGGS net for this to work). The document has 6 groups who responded to the effects of Hurricane Katrina. Each person in your group will find out about 2 of the groups and type the info in to the chart (using the links below, as well as your own internet searches). At the end of the activity you will have access to all the notes from your group.
When you know what group you are in, you are to click on the correct link below. It will take you to a Document in GOOGLE DRIVE (you need to be logged into AGGS net for this to work). The document has 6 groups who responded to the effects of Hurricane Katrina. Each person in your group will find out about 2 of the groups and type the info in to the chart (using the links below, as well as your own internet searches). At the end of the activity you will have access to all the notes from your group.
Miss Aitken's Class (JAIT) - 2016
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Group #1: Local Government
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Group #2: FEMA (Federal Emergency Management Agency)
Click here to read info about FEMA and Hurricane Katrina. 
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Group #3: USA Government/Federal Government
The US Government was criticised for its slow response to the effects of Hurricane Katrina. Read more here. You can watch a video about it by clicking here. Group #4: US Army Corps of Engineers
Click here to read about how the US Army Corps of Engineers took responsibility for the levees breaking. Can you find out what the US Army Corps of Engineers did after Hurricane Katrina? Did they rebuild/repair the levees? |
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Group 5: National Guard
The National Guard is part of the US military. They are reserves (work a normal job and get 'called up' in a crisis). They work within the United States.
The National Guard helped rescue thousands of people after Hurricane Katrina.
Click here for an article on the National Guard .
The videos below show you what they did.
The National Guard is part of the US military. They are reserves (work a normal job and get 'called up' in a crisis). They work within the United States.
The National Guard helped rescue thousands of people after Hurricane Katrina.
Click here for an article on the National Guard .
The videos below show you what they did.
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Group 6: National Weather Service
The National Weather Service respond to previous Hurricanes by warning people when another hurricane is about to hit.
National Weather Service - click here.
Video of National Weather Service Warnings - click here.
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Group #7: American Red Cross
Click here to find out what the American Red Cross did after Hurricane Katrina. Read this article to find out more. |
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