The average flow field at 1500 m height in January

Cyclone circulation:

Cyclone circulation is an important mechanism to complete the transfer and balance of angular momentum, heat and moisture of earth-atmosphere system, as well as the mutual conversion of various energy, and is also an important result of these physical quantity transmission, balance and conversion.

Anticyclone Circulation: Circadian motion in the clockwise direction of the north (south) hemisphere in the atmospheric flow field.

The map comes from the "China Geographic Atlas" in China in January 1500 m height of the average flow field