🌀Polar Vortex: Formation Explained Step by Step
Earth receives uneven sunlight:
Equator gets direct sunlight → becomes hotter
Poles get very little sunlight → stay cold, especially in winter
🌀 Polar Vortex: Formation Explained Step by Step 1️⃣ Sunlight Imbalance Creates Temperature Differences Earth receives uneven sunlight : Equator gets direct sunlight → becomes hotter Poles get very little sunlight → stay cold , especially in winter This creates a temperature contrast between: Warm air at lower latitudes (near equator) Cold air at the poles 2️⃣ Pressure Differences Develop Cold air is heavier and denser , so it creates high pressure near the surface at the poles. Above this cold air, in the upper atmosphere (stratosphere) , a low-pressure system forms. Why low pressure in the upper atmosphere? Because warm air rises at the equator and spreads towards the poles,
displacing cold air aloft and creating a vacuum-like low-pressure zone high above the poles. 3️⃣ Earth’s Rotation Causes Spinning – Coriolis Effect Due to Earth’s rotation, moving air is deflected : To the right in the Northern Hemisphere To the left in the Southern Hemisphere This creates a circular flow of air around the pole → fo…