What is the cause of climate formation in Australia?

Australia's climate is characterized by dry heat, semi-circular distribution, wet in the east and dry in the west. There is a tropical desert climate near the tropic of Capricorn on the west coast of the mainland, with a tropical grassland outside and a Mediterranean climate in the southwest and southeast corners. To the east of the Great Divide, there is a tropical rain forest in the north, a subtropical humid climate in the middle (which can also be simply considered as a subtropical monsoon), and a temperate maritime climate in the south, all the way to Tasmania.

The cause of Australia's semi-circular climate;

① The influence of northwest monsoon and southeast trade wind in the north, and the seasonal variation of precipitation. tropical savanna climate

(2) The windward slope of the east-south trade wind is influenced by the warmth and humidity of the East Australian warm current, with abundant precipitation, low latitude tropical rain forest climate and subtropical humid climate in the south; The precipitation on the leeward slope decreases, and the grassland transitions to desert. The westerly belt control area forms a temperate maritime climate.

(3) The subtropical high in the south and the westerly belt alternately control the formation of the Mediterranean climate, and the transition to the inland is grassland and desert. Grassland landscape area belongs to tropical grassland climate (and subtropical grassland climate).

④ The western region is affected by subtropical high all the year round, and the precipitation is scarce, forming a desert climate.