Inside a typhoon, you will find three distinct structural zones: a deceptively calm centre called the eye, a surrounding ring of catastrophic destruction known as the eyewall, and outer spiralling bands of heavy rain and wind. Typhoons are massive, rapidly rotating tropical cyclone systems that form exclusively in the Northwest Pacific Ocean. They are structurally identical to hurricanes in the Atlantic and cyclones in the Indian Ocean.
Understanding the internal anatomy of a mature typhoon reveals how these powerful weather systems function. 1. The Eye (The Calm Centre)
Deceptively peaceful: The eye is a roughly circular area at the exact atmospheric center, typically spanning 30 to 65 kilometres in diameter.
Sinking air: While the rest of the storm features rapidly rising air, the eye is formed by air slowly descending from the upper atmosphere.
Clear skies: This sinking air compresses and warms up, evaporating moisture and clearing away clouds. A person standing inside the eye during the day would often see blue skies and sunshine.
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