What are the characteristics of summer?

Question 1: What are the characteristics of summer? This question is so broad. Plants are quite abundant in summer. Perennial, annual, flowering and non-flowering. If you ask what flowering plants there are, Lagerstroemia indica, bougainvillea, lotus, water lily, cosmos, rhododendron, gardenia and so on.

Question 2: What are the characteristics of summer weather?

When it comes to summer, the first thing people think of is heat. Summer is the highest temperature period in a year, with dry and hot inland areas and humid and muggy coastal areas. But summer weather is by no means a hot word. Summer is the most violent and complicated period of the year, and the rainfall in most parts of China is mainly concentrated in this period. In the past 30 years, the annual precipitation in Beijing is 570 mm, and the precipitation in summer alone is 423 mm, accounting for 74% of the annual precipitation, especially at the end of July and the beginning of August, which is often the concentrated period of heavy rain and heavy rain. In addition, lightning, hail, thunderstorms, floods, droughts, typhoons and other disastrous weather also occurred at this time.

One of the important reasons why the weather is so changeable in summer is water vapor, and sufficient water vapor is the basic substance of various weather changes. Speaking of water vapor, we want to introduce a weather system to you, that is, subtropical high. Subtropical high is a high-pressure system located at an average of 35 degrees on the earth and roughly arranged along the latitude circle. The position of subtropical high has obvious seasonal variation. In the northern hemisphere, summer is north and winter is south. The airflow rotates clockwise outward from the high pressure center, forming a southerly airflow in the western part of the high pressure, and continuously transporting warm and humid air from the ocean to Chinese mainland, thus providing water vapor for rainfall. When the warm and humid airflow meets the cold air from the north to the south, it will form a wide range of rainy weather. Because the position of this high pressure changes with the seasons, the rain belt in the summer of China will advance from south to north in turn. In autumn, the subtropical high moves south, and the rain belt also moves south. This is why the rainy season in the south of China starts early, ends late and lasts for a long time, while the rainy season in the north starts late and ends early and lasts for a short time.

The warm and humid airflow south of the edge of subtropical high can bring a lot of water vapor to China, but the interior of subtropical high is often hot, dry and sunny due to the influence of descending airflow. Some abnormal subtropical high is the chief culprit of disastrous weather in China.

It is hot in summer, and many functions of human body will become gallbladder in high temperature environment, especially thermoregulation, water and salt metabolism, digestion, circulation, nervous system and endocrine system. Once these changes can't adapt to the environment well, people will feel uncomfortable, and heatstroke is the most common situation in summer. In addition, high temperature and high humidity in summer is the active period of bacterial reproduction, and various infectious diseases, especially digestive tract infectious diseases, occur frequently. In order to spend the summer safely, people should pay attention to the following aspects in their daily life:

Reasonable diet

Eat more light and less greasy food, and eat more bitter vegetables, such as bitter gourd, towel gourd, bitter vegetable and celery. Bitter taste can promote appetite, clear heart and strengthen brain, promote hematopoietic function, and clear away heat and toxic materials.

Proper exercise and static.

Exercise should be carried out in the early morning, in the morning and at the relatively cool time of the day, and it is forbidden to exercise in the hot sun. The activity intensity must be moderate, and the time should not be too long.

An orderly life

Because the summer heat reduces people's sleep at night, we should take a proper rest at noon to supplement the lack of sleep. In addition, when you sleep, you must pay attention to the temperature of the air conditioner not to be adjusted too low, generally between 26~28℃, and also pay attention to opening the window frequently to make the indoor air clean.

Clothing science

Summer dress should follow the principle of "cool, simple, loose and beautiful". In the summer heat, some people like to go shirtless, thinking it will be cooler, but it is not. When the temperature approaches or exceeds the human body temperature, shirtless is not only not cold, but even hotter, because only when the skin temperature is higher than the ambient temperature can heat be emitted through radiation and conduction.

Question 3: What are the characteristics of summer? Hot and little rain

But if it rains, it will rain heavily and flood.

dry

hot

The highest temperature is as high as 42 degrees

Question 4: What are the characteristics of nature in summer? It is very hot in summer, and the cicadas in the trees keep singing loudly. Lotus flowers are in full bloom in the pond, and the fragrance is fragrant; Dragonflies and bats fly in the air to catch pests in the air; A fresh thunderstorm in the evening makes people feel particularly cool. Rainbow is often in midair, just like an arch bridge connecting heaven and earth. How beautiful!

Question 5: What are the characteristics of sweating in summer?

Question 6: What are the characteristics of summer? 10: 00 Summer is the most vigorous period for plant growth. As the plants grow taller, the distant mountains change from turquoise to emerald green.

Other crops in the field are thriving. After a winter and a spring, the winter wheat sown last autumn matured in summer. Farmers harvest wheat in this season.

Willow, maple and other trees are lush, and peaches on peach trees are ripe;

Lotus flowers are in full bloom in the pond. Moreover, lotus flowers only bloom in summer. The grass grows very high by the pond, and all kinds of wild flowers compete to open.

Question 7: What are the characteristics of summer? This is the hottest season of the year in the northern hemisphere. China is used to taking Changxia as long summer, and the meteorological long summer will be postponed to ChangXia Hou for about 25 days. The ancients counted April, May and June of the lunar calendar as "summer"; Today, people regard June, July and August of the solar calendar as "summer". Westerners generally say that the summer of solstice is divided into summer. In the southern hemisphere, 65438+February, 65438+ 10 and February are generally designated as summer. The scientific division method is that the average temperature above 22 degrees is "summer". Therefore, when the average temperature stays below 22 degrees, summer is over.

Meteorological summer

brief introduction

Summer, the second season of the four seasons. Summer English is summer. Summer in meteorology will be delayed to about 25 days. When the climate is hot, it takes June, July and August as summer. Every year around May 5th, when the sun reaches 45, it starts and ends in beginning of autumn. Westerners generally say that the summer of solstice is divided into summer. In the southern hemisphere, 65438+February, 65438+ 10 and February are generally designated as summer. June 2nd1or 22nd is the summer solstice. On that day, the sun shone directly on the Tropic of Cancer, and at this time, the height of the sun reached the maximum in a year at noon in the Tropic of Cancer and its northern latitude. The length of daylight at all latitudes reaches the maximum in a year. In the area north of the Arctic Circle, the sun never sets all day, resulting in extreme daylight. China used to regard long summer as late spring and early summer.

At noon in summer, the temperature of the surrounding environment is very high, the blood vessels on the surface of the human body are easy to expand, and a large amount of blood is concentrated on the skin, resulting in the imbalance of blood distribution in the body. Summer is the peak season for melons and vegetables, and its water content is above 90%. In summer, bacterial reproduction is active and intestinal infectious diseases increase. Poems about summer

Green locust, high willow, swallows, new cicadas, the wind first enters the string. After a light rain, the lotus turned over and the pomegranate blossomed. Lotus leaves will not turn green the next day, and lotus flowers are particularly bright red in the sun. The delicate lotus flower bud shows a sharp corner from the water, and a naughty little dragonfly stands on its head. Words to describe summer: scorching sun-to describe the strong sunshine in summer. It can also be called "scorching sun". Example: "The scorching sun burns people like fire". It's hot in summer-the sun is very strong and very hot in summer. The sun is like fire, and the sun is like fire. Describe the weather is very hot. Also known as "scorching sun". Jiao Yang is as hot as fire: white and bright. The sun burns like fire. Describe the heat in summer. Brilliant and blazing-describes the appearance of blazing and blazing. Hot summer-very hot summer. In hot summer, the beach is full of swimmers. The sun shines on people-roast: roast. Refers to the burning sun shining on the body, as hot as fire. Describe it as hot. The hot sun is in the sky-the hot sun is in the sky. Describe the hot weather. The umbrella is high, the wind is strong, the sun is hot, the wind is fierce and hot. For example, ancient camel caravans often had to endure the bad weather of strong winds and scorching sun when passing through Gobi.