Geography SL
Geography SL
10
Chapters
152
Notes
Option A - Freshwater – Drainage basins
Option A - Freshwater – Drainage basins
Option B - Oceans & coastal margins
Option B - Oceans & coastal margins
Option C - Extreme Environments
Option C - Extreme Environments
Option D - Geophysical Hazards
Option D - Geophysical Hazards
Option E - Leisure, Tourism And Sport
Option E - Leisure, Tourism And Sport
Option F - The Geography Of Food & Health
Option F - The Geography Of Food & Health
Option G - Urban Environments
Option G - Urban Environments
Unit 1 - Changing Population
Unit 1 - Changing Population
Unit 2 - Global Climate - Vulnerability & Resilience
Unit 2 - Global Climate - Vulnerability & Resilience
Unit 3 - Global Resource Consumption & Security
Unit 3 - Global Resource Consumption & Security
IB Resources
Option B - Oceans & coastal margins
Geography SL
Geography SL

Option B - Oceans & coastal margins

Unveiling The Secrets Of Hurricanes, Typhoons & Cyclones What You Need To Know

Word Count Emoji
671 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

What's in a name - cyclone, typhoon, hurricane? 🌬️

Depends on where you are on Earth! It's a cyclone in the South Pacific and Indian Ocean, hurricane in the Atlantic and northeast Pacific, and typhoon in the northwest Pacific. Confusing, huh? Just think of it like ordering a fizzy drink – it's soda, pop, or coke, depending on where you are in the USA!

 

Real-World Example: It's like the confusion of football! Americans call it soccer, but the rest of the world calls it football. Similarly, cyclones, hurricanes, and typhoons are essentially the same thing: low-pressure systems causing mayhem, just named differently based on where they occur!

The anatomy of a hurricane 🌧️

A hurricane forms over tropical seas and is essentially a storm on steroids. These low-pressure systems bring heavy rainfall, strong winds, and high waves. They originate over warm tropical seas, carrying enormous quantities of water (up to 500mm in 24 hours!). A bit like that time you left the garden hose on, except a billion times worse.

 

Fun Fact: The eye of the storm is a calm central area where winds spiral rapidly around. A mature hurricane can lower pressure to a whopping 880 millibars! Picture this: It's like you're in a giant, spinning bowl of soup, and the eye is the quiet middle where the spoon isn't stirring.

A hurricane's life story - from birth to death 🌀

To begin life, hurricanes need specific conditions. Think of it like a plant needing sunlight, water, and good soil.

  • Warm sea temperatures: The sea must be over 27°C to a depth of 60 metres. This warmth gives off heat that fuels the hurricane.

  • Distance from the equator: The low-pressure area must be far enough from the equator for the Coriolis force (a force due to Earth's rotation) to rotate the rising air mass. Too close to the equator and there's not enough rotation to form a hurricane.

  • Unstable conditions: Some tropical low-pressure systems can develop into hurricanes, but not all.

Real-World Example: Picture this – a hurricane forming is like baking a cake. You need the right ingredients (warm water, Coriolis force), and the right oven temperature (unstable conditions). Without these, your cake won't rise, and a hurricane won't form!

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IB Resources
Option B - Oceans & coastal margins
Geography SL
Geography SL

Option B - Oceans & coastal margins

Unveiling The Secrets Of Hurricanes, Typhoons & Cyclones What You Need To Know

Word Count Emoji
671 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

What's in a name - cyclone, typhoon, hurricane? 🌬️

Depends on where you are on Earth! It's a cyclone in the South Pacific and Indian Ocean, hurricane in the Atlantic and northeast Pacific, and typhoon in the northwest Pacific. Confusing, huh? Just think of it like ordering a fizzy drink – it's soda, pop, or coke, depending on where you are in the USA!

 

Real-World Example: It's like the confusion of football! Americans call it soccer, but the rest of the world calls it football. Similarly, cyclones, hurricanes, and typhoons are essentially the same thing: low-pressure systems causing mayhem, just named differently based on where they occur!

The anatomy of a hurricane 🌧️

A hurricane forms over tropical seas and is essentially a storm on steroids. These low-pressure systems bring heavy rainfall, strong winds, and high waves. They originate over warm tropical seas, carrying enormous quantities of water (up to 500mm in 24 hours!). A bit like that time you left the garden hose on, except a billion times worse.

 

Fun Fact: The eye of the storm is a calm central area where winds spiral rapidly around. A mature hurricane can lower pressure to a whopping 880 millibars! Picture this: It's like you're in a giant, spinning bowl of soup, and the eye is the quiet middle where the spoon isn't stirring.

A hurricane's life story - from birth to death 🌀

To begin life, hurricanes need specific conditions. Think of it like a plant needing sunlight, water, and good soil.

  • Warm sea temperatures: The sea must be over 27°C to a depth of 60 metres. This warmth gives off heat that fuels the hurricane.

  • Distance from the equator: The low-pressure area must be far enough from the equator for the Coriolis force (a force due to Earth's rotation) to rotate the rising air mass. Too close to the equator and there's not enough rotation to form a hurricane.

  • Unstable conditions: Some tropical low-pressure systems can develop into hurricanes, but not all.

Real-World Example: Picture this – a hurricane forming is like baking a cake. You need the right ingredients (warm water, Coriolis force), and the right oven temperature (unstable conditions). Without these, your cake won't rise, and a hurricane won't form!

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Geography SL. Subscribe now and get closer to that 45 🌟