thermal mountain effect

The "thermal mountain effect" describes how mountain slopes facing the Sun heat up faster than surrounding areas during the day. This causes the air above the slope to become less dense and rise, creating an anabatic wind that blows uphill.1

This phenomenon is related to temperature inversions, where a layer of cooler air is trapped beneath warmer air. Inversions can limit the upward movement of air and pollutants, and often lead to fog near the ground.2

Mountains significantly influence local climates by affecting temperature, precipitation, and wind patterns. Altitude decreases temperature and atmospheric pressure, while increasing solar radiation receipt. Slopes facing the sun experience greater warming. Mountains also act as barriers, influencing air mass movement and creating rain shadows on leeward sides.34