What do people do about climate?

Since19th century, the belief that there are potential laws behind climate phenomena has inspired geographers to try to divide long-term climate forms into several limited global climate types. This is an amazing challenge, because there are too many differences on the basis of which weather types should be classified, and the systematic collection of data on a global scale is relatively just beginning.

The system of German climatologist Vladimir Ke Ben is the first one that can be used all over the world. The system explains the growth of natural vegetation in any specific area according to the measured values of temperature and precipitation-the local vegetation itself is a reflection of the local climate characteristics. However, critics believe that climate should be defined by other characteristics, such as soil formation or human experience. For example, the classification scheme of American geographer Werner Delkin 1966 takes factors such as temperature, relative humidity, wind speed and solar radiation as the basis of human comfort effect.

Although many aspects of Ke Ben classification system have changed, many climatologists still study climate through vegetation types. Such as: rainforest climate, forest climate of Taiga community or tundra climate, among which climatologists Kitty Tawabcha and Liebhorn. Their classification scheme (which will be summarized in the following pages) identified seven different climatic zones; Tropical rain forest climate, arid zone, subtropical zone, temperate zone, northern (forest) climate, polar climate and plateau climate. isothermal

Residents in tropical areas have never experienced the weather with the monthly average temperature below 64 F (18 C). Moreover, the annual average temperature has been fluctuating from 70 to 80 F (265,438+0℃ ~ 27℃). In fact, in tropical areas, night is regarded as winter, that is, the temperature difference between day and night is greater than that between one period and another in a year.

The seasonal variation of tropical rain forest climate zone is mainly based on the fluctuation of annual rainfall rather than temperature change. The famous tropical rainstorm that night brought a lot of precipitation, which promoted the construction of flood discharge systems for two major rivers in the world: the Amazon basin in South America and the Congo river basin in central Africa.

Some tropical areas, especially the savannahs in Southeast Asia and East Africa, have famous dry seasons and rainy seasons, because these areas are affected by monsoon circulation or trade winds.