What are the climate characteristics of autumn? What are the best sports for fall?

What are the characteristics of autumn? In autumn, the most obvious changes in the natural landscape are on the trees. Urban society begins to clear away a large number of fallen leaves, and many tourists flock to the mountainous areas to watch the red maples. Autumn is the transition season from summer to winter. The lunar calendar lasts from July to September, from the beginning of autumn to the beginning of winter, the solar calendar lasts from September to November, and the astronomical calendar lasts from the autumnal equinox to the winter solstice. The main meteorological disasters in autumn include: autumn rain in West China, cold dew wind in the south, frost and low temperature damage. Generally speaking, as autumn enters, the sun's altitude angle gradually decreases, and the temperature gradually drops; the autumn wind blows coolly, the hot summer heat subsides, the branches are full of fruits, and the fields are golden.

Autumn, also known as autumn, is the third season of the year, the transition season from summer to winter, from September to November in the northern hemisphere, from March to May in the southern hemisphere, and astronomically from the autumnal equinox to the winter solstice. The standard for meteorological workers to study phenology is: after the heat, autumn is considered to have entered when the five-day average temperature stabilizes below 22 degrees, and autumn ends when it falls below 10 degrees.

It can be seen from the distribution map of the dates of the beginning of autumn in my country that the Northeast region is the place where the beginning of autumn comes earliest in eastern my country. Entering autumn, cold air from the north continues to invade, but the force is not very strong. It often creates crisp autumn weather in northern my country, and continuous autumn rain often occurs in Western China. The temperature will gradually drop in autumn, but generally more slowly than in winter. Due to the difference in dry and wet conditions, different regions will experience cold and rainy, or dry and cool weather conditions. In the colder late autumn, due to the large temperature difference between day and night, the water vapor that evaporates during the day will condense at night, either as dew or frost. Key points of autumn diet

Chew carefully and eat slowly: Eating too fast and not chewing the food enough will cause insufficient secretion of digestive juices and cause indigestion. Regular and quantitative meals: During the long holidays, people tend to have irregular work and rest schedules. They either skip a certain meal, focus on a certain meal, or even overeat, which increases the burden on the gastrointestinal tract. Don’t skip breakfast: During the long vacation, you have enough time to sleep in. Sometimes you wake up late and even skip breakfast.

However, after waking up, you will be in a fasting state for more than ten hours. If you do not eat, the gastric juice secreted at night will not be neutralized by food, which can easily lead to gastrointestinal discomfort. Avoid eating before going to bed: Eating before going to bed will increase the burden on the stomach and may worsen certain symptoms. Try not to eat within 3 hours before going to bed. The most obvious change in the natural landscape is on the trees. A large number of fallen leaves will begin to be cleared in the city, and many tourists will flock to the mountainous areas to watch the red leaves.