Atmospheric Pressure and Winds — Geography STD 9 — Question

The distribution of atmospheric pressure across the latitudes is termed as global horizontal distribution of pressure and represented as pressure belts, e.g. Equatorial low, Sub-Tropical High, Circum-polar low and Polar High-pressure belts. It is correlated with the rising up and descending down of the air along with low and high-pressure belts respectively. Due to the spherical shape of the earth, the higher latitudes receive less insolation than the lower latitudes, and this difference in temperature different pressure belts are created. Due to extremely low-pressure equatorial ‘Doldrums’ (still air) are created.