The Earth's rotation turns the polar high pressure systems westward as they move from the poles (westerlies), and the subtropical high pressure systems eastward as they move toward the equator (tropical easterlies).
The equators warm air, and the polar cold air.
The difference in temperatures between the Equator and the north and south poles, plus the rotation of the earth, causes the air currents.
The difference in temperatures between the Equator and the north and south poles, plus the rotation of the earth, causes the air currents.
Air moves from high pressure at the poles towards low pressure at the equator due to the pressure difference. This movement of air creates global wind patterns such as the trade winds near the equator.
The global air circulation, particularly the Hadley, Ferrel, and Polar cells, is primarily driven by solar heating. Near the equator, intense sunlight warms the air, causing it to rise and create low pressure, which then moves poleward at high altitudes. As it cools, the air descends at around 30 degrees latitude, creating high pressure and leading to the trade winds. This process, along with the Earth's rotation (Coriolis effect), helps establish distinct wind patterns and contributes to the overall circulation between the equator and the poles.
The equators warm air, and the polar cold air.
The difference in temperatures between the Equator and the north and south poles, plus the rotation of the earth, causes the air currents.
The difference in temperatures between the Equator and the north and south poles, plus the rotation of the earth, causes the air currents.
Air moves from high pressure at the poles towards low pressure at the equator due to the pressure difference. This movement of air creates global wind patterns such as the trade winds near the equator.
Wind currents flow faster at the poles than at the equator. This is due to the Coriolis effect, which causes the winds to be deflected as they move from high pressure to low pressure areas, creating stronger winds at higher latitudes. Additionally, temperature differences between the equator and the poles contribute to the strength of wind currents.
Constant heating from the sun causes air to rise, then flow away from the equator. Sinking air in the subtropics spreads out and some of it flows toward the equator. This creates a "cell" (Hadley Cell) of circulation that constantly generates rising air at the equator and therefore low pressure.
in equitorial low pressure belt , low pressure is due to 1) intense heating 2) rate of rotation of earth is max. at equator . this results in max centrifugal force at equator which pushes the air away from the surface and causes low pressure condition.
the coriolis effect
Earth's tilt
Global air convection currents are primarily driven by the uneven heating of the Earth's surface by the sun. Near the equator, the sun's rays are more direct, causing warm air to rise and create low pressure. As this warm air moves poleward, it cools and sinks, creating high-pressure areas near the poles. The rotation of the Earth (Coriolis effect) also influences these currents, leading to the formation of distinct wind patterns, such as the trade winds and westerlies.
Air masses move from the polar regions towards the equator due to the temperature difference between the two areas. Warmer air at the equator rises, creating a low-pressure area, while cooler air at the poles sinks, creating a high-pressure area. This pressure difference causes air to move from high to low pressure, resulting in the general movement of air masses towards the equator.
Causes air to move from poles toward the equator