最短的季节

Question

如题所述

Answer 1

秋季是四季中最短暂的 season。From September to November, the autumn season marks the transition from warmth to cool in the northern hemisphere. Among the four seasons, winter is the longest, lasting 105 days, followed by spring with 102 days, summer with 82 days, and autumn, the shortest, with 76 days. Traditionally, the start of autumn is marked by the solar term of Liqiu, the beginning of the 24 solar terms. As autumn sets in, it signifies a decline in rainfall and humidity, and a shift in the natural world towards maturity and decline.
The climate of autumn can be divided into two stages: the initial stage is hot and humid, while the mid-autumn period is characterized by dry and cool weather. The main meteorological disasters in autumn include the West China Autumn Rains, Southern Cold Dew Wind, Frost, and Low Temperature Cold Damage. There are six solar terms in autumn, which are Liqiu, Chushu, Bailu, Qiushen, Hanlu, and Shuangjiang. In meteorology, the standard for the start of autumn is when the average temperature after the end of the hot period stabilizes below 22°C for five consecutive days.
The overall characteristics of autumn are a decrease in rainfall and humidity. In nature, the transition from heat to cold leads to the withering of plants as the cold increases. In China, the division of the four seasons is often based on temperature changes, following the criteria set by modern scholar Zhang Baokun. According to the average temperature method, the beginning of autumn is determined by two main standards. The first is when the daily average temperature is between 10°C and 22°C for five consecutive days, which is considered the start of autumn, known as the simple standard. The second is when the consecutive 5-day moving average temperature is below 22°C. A moving average temperature refers to the average temperature of the day plus the average temperature of the previous four days divided by 5, which gives the 5-day moving average temperature, known as the sliding standard. As autumn arrives, it means the end of the hot weather and the beginning of the cool season.