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Tropical cyclone
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A tropical cyclone is a rapidly rotating storm system with a low-pressure area, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy r
Hurricane Florence viewed from the International Space Station in 2018. The eye, eyewall, and surrounding rainbands are characteristics of tropical cy
Hurricane Florence viewed from the International Space Station in 2018. The eye, eyewall, and surrounding rainbands are characteristics of tropical cyclones.
Hurricane Paulette, in 2020, is an example of a sheared tropical cyclone, with deep convection slightly removed from the center of the system.
Hurricane Paulette, in 2020, is an example of a sheared tropical cyclone, with deep convection slightly removed from the center of the system.
Three tropical cyclones of the 2006 Pacific typhoon season at different stages of development. The weakest (left) demonstrates only the most basic cir
Three tropical cyclones of the 2006 Pacific typhoon season at different stages of development. The weakest (left) demonstrates only the most basic circular shape. A stronger storm (top right) demonstrates spiral banding and increased centralization, while the strongest (lower right) has developed an eye.
The eye and surrounding clouds of Hurricane Florence seen from the International Space Station
The eye and surrounding clouds of Hurricane Florence seen from the International Space Station
Hadley cell
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The Hadley cell, also known as the Hadley circulation, is a global-scale tropical atmospheric circulation that features air rising near the equator, flowing poleward near the tropopause at a height of
On average, the Hadley circulation is composed of two cells in the Northern and Southern hemispheres that circulate air within the tropics.
On average, the Hadley circulation is composed of two cells in the Northern and Southern hemispheres that circulate air within the tropics.
The heating of air along the thermal equator causes it to rise, generating a low-pressure area that pulls in air from the north and south, causing the
The heating of air along the thermal equator causes it to rise, generating a low-pressure area that pulls in air from the north and south, causing the convergence of winds near the equator known as the Intertropical Convergence Zone.
Baroclinic waves developing along the subtropical jet at the polar boundaries of Hadley cells transport energy polewards.
Baroclinic waves developing along the subtropical jet at the polar boundaries of Hadley cells transport energy polewards.
Hadley's conception of the atmospheric circulation involved large, hemisphere-spanning circulations
Hadley's conception of the atmospheric circulation involved large, hemisphere-spanning circulations