AQA GCSE Geography 8035
Climate Change
Coastal Landscapes in the UKUK landscape option
Cold EnvironmentsLiving world option
Ecosystems
EnergyResource option
FoodResource option
Geographical Applications: Fieldwork Enquiry
Geographical Skills
Glacial Landscapes in the UKUK landscape option
Hot DesertsLiving world option
Resource Management
River Landscapes in the UKUK landscape option
Tectonic Hazards
The Changing Economic World
Tropical Rainforests
UK Physical Landscapes
Urban Issues and Challenges
WaterResource option
Weather Hazards
Weather Hazards
The structure of a tropical storm, and the effect of climate change
- 3 things to know
- Paper 1
Overview
The eye, eyewall and rainbands of a tropical storm, its spiral shape, hurricane wind speeds and the Saffir–Simpson scale, storm surges, and how warmer oceans may change the strength, distribution and number of storms.
What you need to know
Answer each one before you reveal it.
What shape does a tropical storm take, and which way does it spin in the northern hemisphere?
What wind speed must a storm reach to be classed as a hurricane?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is the eye of a tropical storm?
Model answer
The calm centre of the system, where air descends, giving clear skies, light winds and the lowest pressure.
- 2
What is the eyewall, and what conditions occur in it?
Model answer
A ring of towering cloud around the eye where air rises fastest, producing the strongest winds and the heaviest rain in the whole storm.
- 3
What shape does a tropical storm take, and which way does it spin in the northern hemisphere?
Model answer
A circular spiral of cloud hundreds of kilometres across, turning anticlockwise about the eye.
- 4
What are the rainbands of a tropical storm?
Model answer
Spiralling bands of thunderstorm cloud outside the eyewall, which bring bursts of heavy rain and gusty winds with calmer gaps between them.
- 5
What wind speed must a storm reach to be classed as a hurricane?
Model answer
Sustained winds of at least 119 km per hour.
- 6
On what scale is the strength of a hurricane measured, and what is its range?
Model answer
The Saffir–Simpson scale, which runs from category 1 up to category 5.
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