Methods of analyzing climate similarities and differences

Lecture 3 Analysis of Climate Characteristics

1. Climate features mainly include temperature and precipitation.

1. temperature

(1) temperature description: high temperature (hot), mild and cold.

A. "High temperature" and "mild (cool)" usually mean that the average monthly temperature in summer is higher or lower than 200 degrees Celsius. For example, the "high temperature in summer" in China means that the average temperature in most parts of the country is above 200℃ in July. The cool seasons in Kunming mean that the average monthly temperature in Kunming in summer is below 200C (note: the "high temperature" of the weather generally means that the highest temperature in a day is above 350C).

B The definitions of "mild" and "cold" are generally defined by the monthly average minimum temperature. For example, subtropical monsoon climate, Mediterranean climate and temperate maritime climate "mild in winter" means that the temperature is above 00 C, while temperate continental climate and temperate monsoon climate "cold in winter" means that the coldest monthly average temperature is below 00 C. In winter in China, it is "mild" to the south of the Huaihe River in Qinling Mountains and "cold" to the north.

(2) Analysis of temperature influencing factors:

It is pointed out that the main factors affecting the temperature in the following places are: A. Antarctic cold () B. Qinghai-Tibet Plateau extremely cold ()

C. Central Asia is hot in winter and cold in summer () D. Murmansk Port is not frozen all year round ()

E. Urban heat island () F. At the same latitude, the winter temperature in the east of Daxing 'anling is higher than that in the west ().

G. In China, the temperature between north and south is generally high in summer, but the temperature difference between north and south is very large in winter ().

Conclusion: The factors affecting temperature mainly include: 2. Temperature difference analysis-temperature difference includes daily temperature difference and temperature annual range.

(1) The main influencing factors of daily temperature range are weather conditions (atmospheric transparency) and ground conditions (for example).

(2) The annual temperature difference is mainly influenced by the annual variation (latitude) of land and sea position, atmospheric circulation, solar height and sunshine hours. C5