Causes and characteristics of tropical desert climate 01
Causes
Tropical desert climates are mainly affected and controlled by sub-tropical stress and wind。
Climate characteristics
This is reflected in the year-end high temperatures and the scarcity of rainfall, in particular the coldest month average temperature exceeding 15°c, while annual precipitation is less than 250 mm。
Distribution of tropical desert climate
Distribution characteristics
It is usually distributed within the continent and in the west bank between latitudes of 20 and 30°. This climate is often characterized by year-round high temperatures and scarce rainfall. In these areas, average temperatures in the coldest months tend to exceed 15°c, while annual precipitation is less than 250 mm。
Special geographical distribution
It is noteworthy that the climate of the tropical desert shows non-zonal distribution in areas such as northern africa and the arabian peninsula, which is significantly affected by such factors as topography and ocean currents. In particular, the distribution of climates in northern africa (sahara) and in the south-west, the arabian peninsula, the plains of the indus river, the central and western parts of australia, the south-west of north america and the west bank of south america, which appear to meet the general climate conditions of the tropical deserts, presents a non-zonal complexity. This is mainly due to the combination of non-landline factors such as topography and ocean currents. For example, the somali peninsula, whose prevailing wind is aligned with the coastline, is not conducive to the elevation of the terrain to form precipitation, and the cold currents along the summer coast of the northern hemisphere (the somali cold) are further cooling and dampening the climate in the region. Similarly, the effects of the high mountain topography (3°s-30°s) of the west bank of south america, the windy wind slope and cold currents along the coast have collectively shaped the region's unique climatic characteristics. The tropical desert climate in these areas undoubtedly has profound implications for the local natural environment and human life。
03 main vegetation types
Tropical desert vegetation is the main vegetation type in the climate zone。
