Characteristics of temperature distribution in summer

The characteristics of temperature distribution in summer are as follows:

1. From the latitude position, the temperature gradually decreases from the low latitude to the two poles.

2. From the position of land and ocean, the temperature of ocean and land at the same latitude is different. The land temperature is high in summer and the ocean temperature is high in winter.

3. From the altitude: the higher the terrain, the lower the temperature, and the temperature drops by 0.6℃ for every elevation increase of 100 meters.

The main factors affecting climate are latitude, land and sea, ocean currents, topography and human activities. The annual average temperature in the world gradually decreases from the equator to the north and south poles. The reason is that the distribution of solar radiation decreases from the equator to the poles. The continent with the highest average temperature in the world is Africa and the continent with the lowest average temperature is Antarctica. Area C in Central Asia is the Qinghai-Tibet Plateau, with an average temperature below 0℃, which is 10℃ lower than that at the same latitude, mainly due to high altitude and low temperature.

Variation law of annual average temperature in the world

1, decreasing from equator to poles.

2. The temperature in the tropics is higher than 20 degrees Celsius.

3. The cold area is lower than-10 degrees Celsius.

Variation law of annual precipitation in the world

1, decreasing from equator to poles.

2. The precipitation on the east coast of the mainland near the Tropic of Cancer is more than that on the west coast.

3. There is less precipitation in temperate mainland and more water in coastal areas.

cause

Although there are different standards for high temperature in different parts of the world, the causes of high temperature weather in different parts of the world are similar. There are mainly the following three aspects:

1, weather system trigger: the formation of high temperature is often directly caused by a specific weather system, and the most typical and common one is the subtropical high, which is known as the "high temperature messenger". In addition to subtropical high, continental warm high pressure, tropical cyclone, hot low pressure, weak cold front and other weather systems will also give birth to high-temperature heat waves.

2. Global warming provides the climate background: Under the influence of global warming, extreme high temperature events become more and more frequent.

3. Urban heat island effect "adding fuel to the fire": Urban heat island effect refers to the phenomenon that the temperature in the city center is higher than that in the suburbs. With the acceleration of urbanization, the urban heat island effect is more obvious, which undoubtedly contributes to the high temperature weather.