hurricane katrina gcse case study

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Hurricane Katrina Case Study

Hurricane Katrina is tied with Hurricane Harvey (2017) as the costliest hurricane on record. Although not the strongest in recorded history, the hurricane caused an estimated $125 billion worth of damage. The category five hurricane is the joint eight strongest ever recorded, with sustained winds of 175 mph (280 km/h).

The hurricane began as a very low-pressure system over the Atlantic Ocean. The system strengthened, forming a hurricane that moved west, approaching the Florida coast on the evening of the 25th August 2005.

A satellite image of Hurricane Katrina.

Hurricane Katrina was an extremely destructive and deadly Category 5 hurricane. It made landfall on Florida and Louisiana, particularly the city of New Orleans and surrounding areas, in August 2005, causing catastrophic damage from central Florida to eastern Texas. Fatal flaws in flood engineering protection led to a significant loss of life in New Orleans. The levees, designed to cope with category three storm surges, failed to lead to catastrophic flooding and loss of life.

What were the impacts of Hurricane Katrina?

Hurricane Katrina was a category five tropical storm. The hurricane caused storm surges over six metres in height. The city of New Orleans was one of the worst affected areas. This is because it lies below sea level and is protected by levees. The levees protect the city from the Mississippi River and Lake Ponchartrain. However, these were unable to cope with the storm surge, and water flooded the city.

$105 billion was sought by The Bush Administration for repairs and reconstruction in the region. This funding did not include potential interruption of the oil supply, destruction of the Gulf Coast’s highway infrastructure, and exports of commodities such as grain.

Although the state made an evacuation order, many of the poorest people remained in New Orleans because they either wanted to protect their property or could not afford to leave.

The Superdome stadium was set up as a centre for people who could not escape the storm. There was a shortage of food, and the conditions were unhygienic.

Looting occurred throughout the city, and tensions were high as people felt unsafe. 1,200 people drowned in the floods, and 1 million people were made homeless. Oil facilities were damaged, and as a result, the price of petrol rose in the UK and USA.

80% of the city of New Orleans and large neighbouring parishes became flooded, and the floodwaters remained for weeks. Most of the transportation and communication networks servicing New Orleans were damaged or disabled by the flooding, and tens of thousands of people who had not evacuated the city before landfall became stranded with little access to food, shelter or basic necessities.

The storm surge caused substantial beach erosion , in some cases completely devastating coastal areas.

Katrina also produced massive tree loss along the Gulf Coast, particularly in Louisiana’s Pearl River Basin and among bottomland hardwood forests.

The storm caused oil spills from 44 facilities throughout southeastern Louisiana. This resulted in over 7 million US gallons (26,000 m 3 ) of oil being leaked. Some spills were only a few hundred gallons, and most were contained on-site, though some oil entered the ecosystem and residential areas.

Some New Orleans residents are no longer able to get home insurance to cover them from the impact of hurricanes.

What was the response to Hurricane Katrina?

The US Government was heavily criticised for its handling of the disaster. Despite many people being evacuated, it was a very slow process. The poorest and most vulnerable were left behind.

The government provided $50 billion in aid.

During the early stages of the recovery process, the UK government sent food aid.

The National Guard was mobilised to restore law and order in New Orleans.

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Tropical Storms Case Study: Katrina

The effects of hurricane katrina.

In August 2005, Hurricane Katrina hit the US states of Mississippi and Louisiana. It was the 3rd deadliest hurricane in American history. New Orleans' flood defenses (levees) broke because they were badly designed, flooding the city.

Primary effects

• 1,836 people are thought to have died.
• 154,522 houses were destroyed between 2005 and 2006.
• The electricity supplies for over 3 million people were cut off. Many people sheltered at the Superdome stadium in New Orleans.
• 80% of New Orleans was flooded with some parts 4.5 metres underwater.
• Coastal habitats were damaged and bridges & infrastructure collapsed.

Secondary effects

• The population of New Orleans fell from 1.386 million to 1.04 million between 2005 and 2006. In 2014, the population was 1.25 million.
• 2,400 businesses in New Orleans closed down or went bankrupt between 2005 and 2006.
• Hundreds of thousands became homeless and sewers overflowed and entered water supplies.
• The estimated total amount of damage was around $125 billion.

The Responses to Hurricane Katrina

The severe effects of Hurricane Katrina were met with both immediate and long-term responses.

Immediate responses

• 1.7 million people were evacuated from the states of Mississippi and Louisiana before the storm struck.
• 20-30% of inhabitants were forced to stay in New Orleans and most of these people were the poorest who could not afford to evacuate.
• Louisiana's National Guard asked for more than 700 buses to evacuate people, however, only 100 buses were sent. States of emergency were declared in Mississippi and Louisiana.
• More than 35,000 people were rescued by the coastguard in New Orleans.
• Charities provided food, water, and aid to those affected.

Long-term responses

• The waters that flooded New Orleans were pumped into Lake Pontchartrain. This took over a month.
• The US Congress (government) allocated $62bn to be spent in aid helping feed and re-house the victims of Hurricane Katrina.
• The US federal and state governments have spent $20 billion rebuilding New Orleans' flood defence systems, with levees, gates, pumps and floodwalls.

1 The Challenge of Natural Hazards

1.1 Natural Hazards

1.1.1 Natural Hazards

1.1.2 Types of Natural Hazards

1.1.3 Factors Affecting Risk

1.1.4 People Affecting Risk

1.1.5 Ability to Cope With Natural Hazards

1.1.6 How Serious Are Natural Hazards?

1.1.7 End of Topic Test - Natural Hazards

1.1.8 Exam-Style Questions - Natural Hazards

1.2 Tectonic Hazards

1.2.1 The Earth's Layers

1.2.2 Tectonic Plates

1.2.3 The Earth's Tectonic Plates

1.2.4 Convection Currents

1.2.5 Plate Margins

1.2.6 Volcanoes

1.2.7 Volcano Eruptions

1.2.8 Effects of Volcanoes

1.2.9 Primary Effects of Volcanoes

1.2.10 Secondary Effects of Volcanoes

1.2.11 Responses to Volcanic Eruptions

1.2.12 Immediate Responses to Volcanoes

1.2.13 Long-Term Responses to Volcanoes

1.2.14 Earthquakes

1.2.15 Earthquakes at Different Plate Margins

1.2.16 What is an Earthquake?

1.2.17 Measuring Earthquakes

1.2.18 Immediate Responses to Earthquakes

1.2.19 Long-Term Responses to Earthquakes

1.2.20 Case Studies: The L'Aquila Earthquake

1.2.21 Case Studies: The Kashmir Earthquake

1.2.22 Earthquake Case Study: Chile 2010

1.2.23 Earthquake Case Study: Nepal 2015

1.2.24 Reducing the Impact of Tectonic Hazards

1.2.25 Protecting & Planning

1.2.26 Living with Tectonic Hazards 2

1.2.27 End of Topic Test - Tectonic Hazards

1.2.28 Exam-Style Questions - Tectonic Hazards

1.2.29 Tectonic Hazards - Statistical Skills

1.3 Weather Hazards

1.3.1 Winds & Pressure

1.3.2 The Global Atmospheric Circulation Model

1.3.3 Surface Winds

1.3.4 UK Weather Hazards

1.3.5 Changing Weather in the UK

1.3.6 Tropical Storms

1.3.7 Tropical Storm Causes

1.3.8 Features of Tropical Storms

1.3.9 The Structure of Tropical Storms

1.3.10 The Effect of Climate Change on Tropical Storms

1.3.11 The Effects of Tropical Storms

1.3.12 Responses to Tropical Storms

1.3.13 Reducing the Effects of Tropical Storms

1.3.14 Tropical Storms Case Study: Katrina

1.3.15 Tropical Storms Case Study: Haiyan

1.3.16 UK Weather Hazards Case Study: Somerset 2014

1.3.17 End of Topic Test - Weather Hazards

1.3.18 Exam-Style Questions - Weather Hazards

1.3.19 Weather Hazards - Statistical Skills

1.4 Climate Change

1.4.1 Climate Change

1.4.2 Evidence for Climate Change

1.4.3 Natural Causes of Climate Change

1.4.4 Human Causes of Climate Change

1.4.5 Effects of Climate Change on the Environment

1.4.6 Effects of Climate Change on People

1.4.7 Climate Change Mitigation Strategies

1.4.8 Adaptation to Climate Change

1.4.9 End of Topic Test - Climate Change

1.4.10 Exam-Style Questions - Climate Change

1.4.11 Climate Change - Statistical Skills

2 The Living World

2.1 Ecosystems

2.1.1 Ecosystems

2.1.2 Food Chains & Webs

2.1.3 Ecosystem Cascades

2.1.4 Global Ecosystems

2.1.5 Ecosystem Case Study: Freshwater Ponds

2.2 Tropical Rainforests

2.2.1 Tropical Rainforests

2.2.2 Interdependence of Tropical Rainforests

2.2.3 Adaptations of Plants to Rainforests

2.2.4 Adaptations of Animals to Rainforests

2.2.5 Biodiversity of Tropical Rainforests

2.2.6 Deforestation

2.2.7 Impacts of Deforestation

2.2.8 Case Study: Deforestation in the Amazon Rainforest

2.2.9 Why Protect Rainforests?

2.2.10 Sustainable Management of Rainforests

2.2.11 Case Study: Malaysian Rainforest

2.2.12 End of Topic Test - Tropical Rainforests

2.2.13 Exam-Style Questions - Tropical Rainforests

2.2.14 Deforestation - Statistical Skills

2.3 Hot Deserts

2.3.1 Hot Deserts

2.3.2 Interdependence in Hot Deserts

2.3.3 Adaptation of Plants to Hot Deserts

2.3.4 Adaptation of Animals to Hot Deserts

2.3.5 Biodiversity in Hot Deserts

2.3.6 Case Study: Sahara Desert

2.3.7 Desertification

2.3.8 Reducing the Risk of Desertification

2.3.9 Case Study: Thar Desert

2.3.10 End of Topic Test - Hot Deserts

2.3.11 Exam-Style Questions - Hot Deserts

2.4 Tundra & Polar Environments

2.4.1 Overview of Cold Environments

2.4.2 Interdependence of Cold Environments

2.4.3 Adaptations of Plants to Cold Environments

2.4.4 Adaptations of Animals to Cold Environments

2.4.5 Biodiversity in Cold Environments

2.4.6 Case Study: Alaska

2.4.7 Sustainable Management

2.4.8 Case Study: Svalbard

2.4.9 End of Topic Test - Tundra & Polar Environments

2.4.10 Exam-Style Questions - Cold Environments

3 Physical Landscapes in the UK

3.1 The UK Physical Landscape

3.1.1 The UK Physical Landscape

3.1.2 Examples of the UK's Landscape

3.2 Coastal Landscapes in the UK

3.2.1 Types of Wave

3.2.2 Weathering

3.2.3 Mass Movement

3.2.4 Processes of Erosion

3.2.5 Wave-Cut Platforms

3.2.6 Headlands & Bays

3.2.7 Caves, Arches & Stacks

3.2.8 Longshore Drift

3.2.9 Sediment Transport

3.2.10 Deposition

3.2.11 Spits, Bars & Sand Dunes

3.2.12 Coastal Management - Hard Engineering

3.2.13 Coastal Management - Soft Engineering

3.2.14 Case Study: Landforms on the Dorset Coast

3.2.15 Coastal Management - Managed Retreat

3.2.16 Coastal Management Case Study - Holderness

3.2.17 Coastal Management Case Study: Swanage

3.2.18 Coastal Management Case Study - Lyme Regis

3.2.19 End of Topic Test - Coastal Landscapes in the UK

3.2.20 Exam-Style Questions - Coasts

3.3 River Landscapes in the UK

3.3.1 The Long Profile of a River

3.3.2 The Cross Profile of a River

3.3.3 Vertical & Lateral Erosion

3.3.4 River Valley Case Study - River Tees

3.3.5 Processes of Erosion

3.3.6 Sediment Transport

3.3.7 River Deposition

3.3.8 Waterfalls & Gorges

3.3.9 Interlocking Spurs

3.3.10 Meanders

3.3.11 Oxbow Lakes

3.3.12 Floodplains

3.3.13 Levees

3.3.14 Estuaries

3.3.15 Case Study: The River Clyde

3.3.16 River Management

3.3.17 Hydrographs

3.3.18 Flood Defences - Hard Engineering

3.3.19 Flood Defences - Soft Engineering

3.3.20 River Management Case Study - Boscastle

3.3.21 River Management Case Study - Banbury

3.3.22 End of Topic Test - River Landscapes in the UK

3.3.23 Exam-Style Questions - Rivers

3.4 Glacial Landscapes in the UK

3.4.1 The UK in the Last Ice Age

3.4.2 Glacial Processes

3.4.3 Glacial Landforms Caused by Erosion

3.4.4 Tarns, Corries, Glacial Troughs & Truncated Spurs

3.4.5 Types of Moraine

3.4.6 Drumlins & Erratics

3.4.7 Snowdonia

3.4.8 Land Use in Glaciated Areas

3.4.9 Conflicts in Glacial Landscapes

3.4.10 Tourism in Glacial Landscapes

3.4.11 Coping with Tourism Impacts in Glacial Landscapes

3.4.12 Case Study - Lake District

3.4.13 End of Topic Test - Glacial Landscapes in the UK

3.4.14 Exam-Style Questions - Glacial Landscapes

4 Urban Issues & Challenges

4.1 Urban Issues & Challenges

4.1.1 Urbanisation

4.1.2 Factors Causing Urbanisation

4.1.3 Megacities

4.1.4 Urbanisation Case Study: Lagos

4.1.5 Urbanisation Case Study: Rio de Janeiro

4.1.6 UK Cities

4.1.7 Case Study: Urban Regen Projects - Manchester

4.1.8 Case Study: Urban Change in Liverpool

4.1.9 Case Study: Urban Change in Bristol

4.1.10 Sustainable Urban Life

4.1.11 Reducing Traffic Congestion

4.1.12 End of Topic Test - Urban Issues & Challenges

4.1.13 Exam-Style Questions - Urban Issues & Challenges

4.1.14 Urban Issues -Statistical Skills

5 The Changing Economic World

5.1 The Changing Economic World

5.1.1 Measuring Development

5.1.2 Limitations of Developing Measures

5.1.3 Classifying Countries Based on Wealth

5.1.4 The Demographic Transition Model

5.1.5 Stages of the Demographic Transition Model

5.1.6 Physical Causes of Uneven Development

5.1.7 Historical Causes of Uneven Development

5.1.8 Economic Causes of Uneven Development

5.1.9 Consequences of Uneven Development

5.1.10 How Can We Reduce the Global Development Gap?

5.1.11 Case Study: Tourism in Kenya

5.1.12 Case Study: Tourism in Jamaica

5.1.13 Case Study: Economic Development in India

5.1.14 Case Study: Aid & Development in India

5.1.15 Case Study: Economic Development in Nigeria

5.1.16 Case Study: Aid & Development in Nigeria

5.1.17 End of Topic Test - The Changing Economic World

5.1.18 Exam-Style Questions - The Changing Economic World

5.1.19 Changing Economic World - Statistical Skills

5.2 Economic Development in the UK

5.2.1 Causes of Economic Change in the UK

5.2.2 The UK's Post-Industrial Economy

5.2.3 The Impacts of UK Industry on the Environment

5.2.4 Change in the UK's Rural Areas

5.2.5 Transport in the UK

5.2.6 The North-South Divide

5.2.7 Regional Differences in the UK

5.2.8 The UK's Links to the World

6 The Challenge of Resource Management

6.1 Resource Management

6.1.1 Global Distribution of Resources

6.1.2 Uneven Distribution of Resources

6.1.3 Food in the UK

6.1.4 Agribusiness

6.1.5 Demand for Water in the UK

6.1.6 Water Pollution in the UK

6.1.7 Matching Supply & Demand of Water in the UK

6.1.8 The UK's Energy Mix

6.1.9 Issues with Sources of Energy

6.1.10 Resource Management - Statistical Skills

6.2.1 Areas of Food Surplus & Food Deficit

6.2.2 Increasing Food Consumption

6.2.3 Food Supply & Food Insecurity

6.2.4 Impacts of Food Insecurity

6.2.5 Increasing Food Supply

6.2.6 Case Study: Thanet Earth

6.2.7 Creating a Sustainable Food Supply

6.2.8 Case Study: Agroforestry in Mali

6.2.9 End of Topic Test - Food

6.2.10 Exam-Style Questions - Food

6.2.11 Food - Statistical Skills

6.3.1 Water Surplus & Water Deficit

6.3.2 Increasing Water Consumption

6.3.3 What Affects the Availability of Water?

6.3.4 Impacts of Water Insecurity

6.3.5 Increasing Water Supplies

6.3.6 Case Study: Water Transfer in China

6.3.7 Sustainable Water Supply

6.3.8 Case Study: Kenya's Sand Dams

6.3.9 Case Study: Lesotho Highland Water Project

6.3.10 Case Study: Wakel River Basin Project

6.3.11 Exam-Style Questions - Water

6.3.12 Water - Statistical Skills

6.4.1 Global Demand for Energy

6.4.2 Increasing Energy Consumption

6.4.3 Factors Affecting Energy Supply

6.4.4 Impacts of Energy Insecurity

6.4.5 Increasing Energy Supply - Solar

6.4.6 Increasing Energy Supply - Water

6.4.7 Increasing Energy Supply - Wind

6.4.8 Increasing Energy Supply - Nuclear

6.4.9 Increasing Energy Supply - Fossil Fuels

6.4.10 Carbon Footprints

6.4.11 Energy Conservation

6.4.12 Case Study: Rice Husks in Bihar

6.4.13 Exam-Style Questions - Energy

6.4.14 Energy - Statistical Skills

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Tropical Storms Case Study: Haiyan

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Hurricane Katrina Case Study: A-Level and GCSE Geography

Subject: Geography

Age range: 14-16

Resource type: Assessment and revision

Last updated

13 May 2024

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11 slide PowerPoint Presentation to act as a basic case study for Hurricane Katrina. Suitable for GCSE, AS and A-Level.

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Hazards - responding to tropical storms

Hurricane Katrina Case Study: Impacts and Safety Precautions

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One of the most devastating tropical cyclones in the USA, Hurricane Katrina hit in 2005, resulting in 1800 deaths and an economic cost of 100 billion. The storm caused extensive damage, including the destruction of the super dome, high winds that led to destroyed buildings and made 5 million people homeless, and the loss of 230,000 jobs from damaged businesses. The intense rainfall also contributed to the widespread homelessness. Furthermore, the storm surges and coastal erosion added to the impact, leaving a trail of destruction in its wake.

Social Impacts of Hurricane Katrina

The social impacts of Hurricane Katrina were profound, with over 1 million people left homeless and the Mississippi River overflowing, causing further devastation. The aftermath of the storm saw 5300km² of woodland destroyed and 1200 coconut plantation trees ruined, affecting the agricultural sector. The cyclone also led to a significant displacement of people and contaminated water sources, leading to the spread of cholera.

Economic Impacts of Hurricane Katrina

The economic impacts of Hurricane Katrina were extensive, with businesses suffering significant losses and a large number of jobs being lost. The total economic cost amounted to 100 billion, making it one of the costliest natural disasters in US history.

What Safety Precautions Were Taken Before Hurricane Katrina

In preparation for Hurricane Katrina, frequent weather forecasts were issued on TV and radio, and the National Hurricane Center (NHC) used satellite images to collect data. The government also tracked the hurricane and issued warnings to the public. However, the defenses in place, such as the levee barriers in New Orleans, were not well-maintained, which contributed to the extensive flooding and damage.

The long-term impacts of Hurricane Katrina are still being felt today, with many areas still struggling to fully recover from the devastation. The storm had a lasting impact on the economy, infrastructure, and social fabric of the affected regions, and the rebuilding efforts have been ongoing for years.

• Hurricane Katrina resulted in 1800 deaths and an economic cost of 100 billion.
• The storm left 5 million people homeless and caused the destruction of 230,000 jobs.
• The Mississippi River overflowed, leading to further devastation and displacement of people.

In conclusion, Hurricane Katrina had far-reaching social and economic impacts, and the long-term effects of the storm continue to be felt to this day. The case study of Hurricane Katrina serves as a stark reminder of the devastating power of tropical cyclones and the importance of effective preparation and response strategies.

Summary - Geography

• Hurricane Katrina hit the USA in 2005, resulting in 1800 deaths and a 100 billion economic cost
• The storm caused extensive damage, destroying buildings, leaving millions homeless, and leading to job losses
• Over 1 million people were left homeless, and the cyclone led to agricultural devastation and spread of cholera
• Businesses suffered significant losses, and the total economic cost amounted to 100 billion
• Long-term impacts include ongoing struggles for recovery and lasting effects on the economy and infrastructure

Uploaded by djnebfnff a

Frequently asked questions on the topic of geography.

Q: Where did Hurricane Katrina hit?

A: Hurricane Katrina hit the USA in 2005, causing extensive damage and devastation.

Q: What were the economic impacts of Hurricane Katrina?

A: The economic impacts of Hurricane Katrina were extensive, with businesses suffering significant losses and a total economic cost of 100 billion.

Q: What safety precautions were taken before Hurricane Katrina?

A: In preparation for Hurricane Katrina, frequent weather forecasts were issued on TV and radio, and the National Hurricane Center used satellite images to collect data.

Q: What were the social impacts of Hurricane Katrina?

A: The social impacts of Hurricane Katrina were profound, with over 1 million people left homeless and the Mississippi River overflowing, causing further devastation.

Q: What are some interesting facts about Hurricane Katrina?

A: Hurricane Katrina resulted in 1800 deaths, an economic cost of 100 billion, and left 5 million people homeless.

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Case Study – Hurricane Katrina

At least 1,500 people were killed and around $300 billion worth of damage was caused when Hurricane Katrina hit the south-eastern part of the USA. Arriving in late August 2005 with winds of up to 127 mph, the storm caused widespread flooding. 

Physical impacts of Hurricane Katrina

Flooding Hurricanes can cause the sea level around them to rise, this effect is called a storm surge. This is often the most dangerous characteristic of a hurricane, and causes the most hurricane-related deaths. It is especially dangerous in low-lying areas close to the coast.

There is more about hurricanes in the weather section of the Met Office website https://www.metoffice.gov.uk/research/weather/tropical-cyclones/facts

Hurricane Katrina tracked over the Gulf of Mexico and hit New Orleans, a coastal city with huge areas below sea-level which were protected by defence walls, called levees. The hurricane’s storm surge, combined with huge waves generated by the wind, pushed up water levels around the city.

The levees were overwhelmed by the extra water, with many collapsing completely. This allowed water to flood into New Orleans, and up to 80% of the city was flooded to depths of up to six metres.

Hurricane Katrina also produced a lot of rainfall, which also contributed to the flooding.

In pictures

Strong winds The strongest winds during 25-30 August were over the coastal areas of Louisiana and Florida. A map of the maximum wind speeds which were recorded during the Hurricane Katrina episode is shown. Although the winds did not directly kill many people, it did produce a storm surge over the ocean which led to flooding in coastal areas and was responsible for many deaths.

Satellite Image

Illustration

Tornadoes Hurricanes can create tornadoes. Thirty-three tornadoes were produced by Hurricane Katrina over a five-day period, although only one person died due to a tornado which affected Georgia.

Impact on humans

• 1,500 deaths in the states of Louisiana, Mississippi and Florida.
• Costs of about $300 billion.
• Thousands of homes and businesses destroyed.
• Criminal gangs roamed the streets, looting homes and businesses and committing other crimes.
• Thousands of jobs lost and millions of dollars in lost tax incomes.
• Agricultural production was damaged by tornadoes and flooding. Cotton and sugar-cane crops were flattened.
• Three million people were left without electricity for over a week.
• Tourism centres were badly affected.
• A significant part of the USA oil refining capacity was disrupted after the storm due to flooded refineries and broken pipelines, and several oil rigs in the Gulf were damaged.
• Major highways were disrupted and some major road bridges were destroyed.
• Many people have moved to live in other parts of the USA and many may never return to their original homes.

The broken levees were repaired by engineers and the flood water in the streets of New Orleans took several months to drain away. The broken levees and consequent flooding were largely responsible for most of the deaths in New Orleans. One of the first challenges in the aftermath of the flooding was to repair the broken levees. Vast quantities of materials, such as sandbags, were airlifted in by the army and air force and the levees were eventually repaired and strengthened.

Although the USA is one of the wealthiest developed countries in the world, it highlighted that when a disaster is large enough, even very developed countries struggle to cope.

Weather Map

Web page reproduced with the kind permission of  the Met Office

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Hurricane Katrina Case Study

My notes for the case study of hurricane katrina,2005.

• Created by: Jasveen
• Created on: 03-06-11 15:08
• Natural hazards Natural hazards

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