What factors affect the weather?

The main influencing factors of climate are solar radiation, atmospheric circulation, ground conditions (topography, reflectivity, heat capacity) and ocean currents, in which solar radiation determines the climate zone, atmospheric circulation directly restricts the climate type, and ground conditions and ocean currents change the main laws of climate distribution. The causes of the main climate are relatively easy to analyze. There is some local climate here.

1. Near the Tropic of Cancer, Africa has a tropical desert climate, South Asia has a tropical monsoon climate, and southeast China has a subtropical monsoon climate. The reasons are: North Africa is affected by tropical continental air mass and trade winds from the mainland, and it is hot and dry all the year round; South Asia is affected by tropical monsoon; and southeast China is affected by subtropical monsoon.

2. Causes of thar desert in South Asia: Controlled by the subtropical high belt, the southwest monsoon is difficult to reach and the original vegetation is destroyed.

5. The higher the annual range latitude of the temperature, the higher the latitude, because the greater the annual change of the height of the sun at noon, the greater the annual change of the length of day and night, so the greater the annual range of the temperature; The opposite is true at low latitudes. The farther away from the sea, the greater the annual temperature difference. The reason is that the heat capacity of the land is smaller than that of the ocean, and the temperature rises rapidly in summer and cools rapidly in winter, and the temperature is lower than that of the ocean. Therefore, the temperature in annual range is higher than that in the ocean, and the coastal areas are more affected by the ocean than inland annual range.

6. The reasons for the large temperature difference between north and south in winter in China are: the latitude span in China is large, and the direct point of the sun in winter is in the southern hemisphere. The farther south South China is, the higher the sun is at noon and the longer the day is, so the more solar radiation is obtained, and the frequent southerly winds in winter have a great influence on North China.

7. The reasons for the high temperature in summer in China are as follows: the direct point of the sun is in the northern hemisphere. Although the height of the sun at noon in the north is smaller than that in the south, the daytime is longer than that in the south, and the solar heat obtained is not much less than that in the south.

8. The reason why the winter temperature in China is lower than that in other parts of the same latitude is influenced by the strong Mongolian-Siberian cold high (or winter wind).

9. The reason why the temperature in India is higher than that in China at the same latitude is the alpine barrier (the tall Himalayas block the cold air from the south).

10. The tropical rain forest climate in the southeast coast of Brazil, northeast Australia and east Madagascar is mainly caused by the influence of topography (mountains), and a warm current passes through the windward slope of the southeast trade wind.

1 1. Is there a forest belt on the southern slope of Tianshan Mountain? No, the reason is: leeward slope with little precipitation.

12. The reason why the maritime climate in Europe is larger than that in North America is that Europe lacks tall mountain systems extending from north to south, and the west wind from the ocean can penetrate into the mainland. Affected by topography and ocean currents, the west coast of Europe is greatly affected by warm currents.

13. causes of Patagonia desert in southern south America: located in temperate zone, prevailing westerly wind, on the east side of Andes, with leeward slope and little precipitation.

14. The reason why the coniferous forest in the sub-frigid zone on the southern edge of the east coast of the mainland is southward is that the east coast is cold and the west coast is warm; Secondly, the east coast is affected by the wind from the mainland, while the west coast is the opposite.

15. The temperature of Qinghai-Tibet Plateau is lower than that of plains and basins at the same latitude in China. The reasons are: the great plateau at low latitudes is cooler in summer because of its high altitude; In winter, due to the influence of low latitude and high terrain, the cold air flow in the south is not affected and the temperature will not be too low; The diurnal range is large, because the altitude is high, the atmospheric density is low, and the heat preservation and weakening effect of the atmosphere is low, so the temperature rises rapidly during the day and cools rapidly at night.

16. Daily temperature range: the higher the latitude, the smaller it is. The reason is that the diurnal variation of solar height is mainly small. The relationship between diurnal range and weather, land and ocean is that the diurnal range in cloudy days is smaller than that in sunny days, and that in inland areas is larger than that in coastal areas. The daily temperature difference at the top of the mountain is smaller than that in the plain below the mountain, and the annual temperature difference is also smaller.

17. The East African Plateau region crossed by the equator is mainly tropical grassland climate, and the main influencing factor is topography.