Why is it so hot in the summer, why is it so hot in the summer

Because China is located in the northern hemisphere, and most of it is located in the northern temperate zone.

The temperate zone is warm in winter and cool in summer, which is a distinctive feature of the northern temperate zone.

In China, except for Kunming, which is affected by the trade winds, it is like spring all year round; Guangdong, Hong Kong, Macao and Taiwan are located in the tropics, except for the four seasons, and other places have the remarkable characteristics of temperate zones.

And in the summer, the altitude angle of the sun is the largest, the sunlight is almost direct to the earth, the heat of the sun reaches the earth the most, and the earth gets more energy from the sun, so the summer is hot.

Because the Earth's rpm around the Sun is an ellipse, in winter, our Earth rotates exactly to the aphelion, far from the Sun, and gets less heat, and in summer, the Earth rotates exactly to the perihelion, close to the Sun, and the heat obtained must be more.

So it's normal to be warm in the east and cool in summer.

The so-called calm heart is naturally cool, don't warm yourself up.

The sun shines on the earth.

Illuminates the surface of the earth. So it's hot.

In the summer, the height angle of the sun is large, the sunlight is almost direct to the earth, and the energy density of the solar energy reaching the earth is very large, and the earth gets from the sun, so everyone should pay attention to the heat.

Because everyone is turning on the air conditioner.

Nanjing is hot in summer because.

1.There are many hills in the south and east of Nanjing, and the southeast wind is not easy to enter in summer.

2.To the north of Nanjing is the Yangtze River, and there is also Xuanwu Lake in the city, and the humidity is very high.

3.The subtropical high is stable and less active.

4.In summer, the cold air activity in China is generally relatively northern, and the south is not affected by the polar airflow.

The direct point of the sun is located in the Northern Hemisphere.

The sun shines on the earth.

Illuminates the surface of the earth. So it's hot.

In the summer, the altitude angle of the sun is large, the sunlight is almost direct to the earth, and the energy density of the solar energy reaching the earth is very large, and the earth gets it from the sun.

So everyone should pay attention to the heat.

July is summer in the Northern Hemisphere, the sun shines directly on the Northern Hemisphere, and the Northern Hemisphere is strongly exposed to solar radiation, so the temperature is high, while the Southern Hemisphere is winter. Thank you.

In summer, because the sun shines almost directly on the earth, it receives more light per unit area than usual, so it is converted into more internal energy, which makes the air much warmer.

In addition, due to the direct sunlight, plants evaporate faster, and rivers and lakes evaporate faster, which saturates the air with water vapor, so that sweat cannot evaporate and thus cannot take away its own heat, which logically explains why it feels so hot in summer.

Summary. I'm a teacher who asks a question and answer, and the master life expert is Xiongzi. Because the solar altitude angle moves to the Tropic of Cancer after the summer solstice, the days are long and the nights are short, resulting in high temperature and rain, strong atmospheric inverse radiation, and good thermal insulation effect, so it is hot both day and night in summer.

I'm a teacher who asks a question and answer, and the master life expert is Xiongzi. Because the altitude angle of the sun moves to the Tropic of Cancer after the summer solstice, the days are long and the nights are short, forming high temperature and rain, strong atmospheric inversion radiation, and good thermal insulation effect, so the silver cherry blossoms are hot in summer both day and night.

The three dog days, which are the collective name for the bright, middle and last volts in Chuzhou, are the hottest time of the year. "Fu" means that the yin energy is forced by the yang energy to hide underground. The dog days of the year occur from mid-July to August in the Gregorian calendar, and their climate is characterized by high temperature, low air pressure, high humidity and low wind speed.

The so-called "heat in the three dogs", the three dogs have the beginning, the middle and the last of the three, and its date is determined by the date of the solar term and the date of the dry branch to determine the width of the spine.

China's traditional calculation method stipulates that the third Geng day after the summer solstice is the beginning of the first volcane, the fourth Geng day is the beginning of the middle volcane, and the first Geng day after the beginning of autumn is the beginning of the last volcane. Because there is a 10-day gap between each Geng day, the prescribed time for the first and last days is 10 days. The number of days in the middle of the summer solstice can be long or short, it may be 10 days or 20 days, depending on the third Geng day (first volt) after the summer solstice solar term each year.

First of all, the warming caused by human activities, the greenhouse effect. Although the temperature** can sometimes deviate, due to the effect of the greenhouse effect, this kind of weather will make a comeback in the future and will occur frequently. High temperatures affect people's travel.

In the Lower Mainland, all public schools were closed on Monday and a large number of factories were temporarily closed. It is not uncommon for air conditioners to be resold. According to statistics, before Friday, only 40% of households in British Columbia had air conditioners, and the sudden high temperature made most residents start to rush to buy air conditioners.

Second, climate change has adverse effects on human health and cognition. From the perspective of student learning, this paper examines the impact of summer heat on academic performance. The summer heat can significantly reduce a student's academic performance.

Based on the number of days with a temperature between 28 and 30, the number of days with a temperature above 34 in summer is increased by 1 day. The average drop and standard deviation will be averaged.

In addition, extreme heat often coincides with low rainfall, which will lead to a continuous decline in soil moisture and accelerate the development of drought conditions. The rapid rise in water temperature will reduce the oxygen content in the water, cause a fatal blow to some fish, affect normal agricultural and fishery production, and extremely high temperatures will also induce forest fires, increase the load on the power grid, cause part of the asphalt pavement to melt, and affect people's normal life.

The last thing to know is the effect on the growth of pollen tubes in the columella. High temperatures affect the growth rate of pollen tubes. The growth rate of pollen tubes is extremely sensitive to high temperatures above 35.

High temperature in the field before 12:00 inhibits pollen germination and pollen tube growth, and high temperature above 12:00 inhibits pollen in the flower column.

The tube grows quickly, but does not affect the normal fertilization process and seed setting rate. It can be seen that the pollen can germinate at the stigma at high temperatures, and the growth of pollen tubes in the stigma will still be hindered. When the length of the pollen tube does not reach the base of the flower column and ovule, it cannot complete the problem of reproduction well.

As the global climate warms, the melting of glaciers intensifies, resulting in hotter and hotter summers, and high temperatures are gradually breaking records.

According to the analysis, the main reason for this year's high temperature phenomenon is that the subtropical high is abnormally west-north, and the subtropical high dominates the area, which is dominated by a downdraft, and the airflow will increase temperature and pressure in the process of sinking, which has led to high temperature weather in many places in southern China. In the same period of previous years, the subtropical high will gradually move southward due to the direct sunlight point moving southward, and even retreat to the ocean, and the high temperature weather in China will also be alleviated. However, this year, the subtropical high is abnormally northerly and very strong, so that the temperature in many places in China is still high for a long time, and the temperature in some areas is even as high as 39 degrees Celsius, which is comparable to midsummer.

Due to the rapid development of the world, the level of science and technology is becoming more and more developed, and the level of urbanization is improving, people's damage to the environment is becoming more and more serious.

You know, environmental pollution to our global village is very destructive, due to global warming, will have a variety of global impacts, higher temperatures can melt polar glaciers, sea level will rise 6 centimeters every 10 years, so some coastal areas will be submerged.

Global warming may also affect changes in rainfall and atmospheric circulation, make the climate abnormal, and easily cause drought and flood disasters, which may lead to changes and destruction of ecosystems, and global climate change will have a series of major impacts on human life.

In fact, in the final analysis, the summer is getting hotter and hotter, it is an environmental problem, it is due to the heavy destruction of nature by human beings, and the summer heat is the feedback of nature to human beings, we should pay full attention to this problem, strengthen environmental protection, the earth is our common home, we live on the earth, everything we do is responsible for ourselves, we should protect the environment, love the environment, and jointly protect our beautiful home.

Dear, hello, the summer is hot because the height angle of the sun is large in summer, the sunlight hits the earth directly, the temperature is higher, and the earth has gained more energy, I hope my virtual match can help you! Poor wax fingers.

Since June this year, the heat wave has struck, covering an area of 10,000 square kilometers and affecting more than 900 million people. The high temperature lasts for a long time and has a great impact, making it difficult for people to withstand the heat, and the high temperature continues to last, and even causes serious forest fires in some areas. And that's just for this summer.

It is common sense that high temperatures are common in the country in summer. Summer after summer, we look forward to the arrival of spring and summer in winter, and love the warmth and wanton happiness of summer. However, in recent years, the summer weather has become hotter and hotter, will those who like summer still look forward to the arrival of the next summer as usual?

And why has the summer weather been getting hotter in recent years?

1.Global warming is the root cause of the increasingly hot summer weather in recent years.

In the last 50 years, the impact of global warming on the atmosphere has increasedHappening at a rate not seen since the last 2,000 years.

Overall, with the rise of people's quality of life,The number of people buying cars, air conditioners and other electrical appliances has increased, and when they are used, the exhaust gases emitted from cars, and the non-environmentally friendly materials used in the manufacture of air conditioners and other electrical appliances have all brought adverse effects to our nature. Car exhaust gases, the hot air exhaust from the air conditioner to the outside heats up the summer heat. The emission of fluorochloroalkanes from air conditioners and refrigerators has caused a hole in the ozone layer in the atmosphere, which has increased the intensity of ultraviolet ingestion to the earth's surface, and the temperature has been rising, and the weather has become hotter and hotter.

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2.Recurrence of La Niña and El Niño

La Niña makes our country prone to extreme cold winters and scorching heat in summers. The summer weather has become hotter and hotter in recent years, and it also has its "credit".

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3. Human beings overexploit nature, regardless of ecological benefits.

All extreme weather is actually the result of our human suffering. In the process of economic development, if we only know how to take greedily from nature, regardless of the damage to the ecological environment caused by economic production, one day nature will take revenge on us

In the early days, in order to develop the economy, people wantonly exploited mining sources and cut down indiscriminately, which damaged the regulating barrier of the atmosphere and intensified global warming. The absence of trees weakens the Earth's role in regulating the balance of the atmosphere, and it is not surprising that extreme weather is frequent.

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Summary:

In recent years, the summer weather has become hotter and hotter, and each of us cannot escape the blame, we should have a sense of crisis, enhance environmental awareness, and start from the small things around us to alleviate this phenomenon.

Summary. Hello dear. The natural reason for the summer heat is that in the summer the height angle of the sun is large, the sunlight hits the earth directly, the energy density of the sun reaching the earth is large, and the earth gets more energy from the sun, so the summer is hot.

In addition, the sun shines directly in the northern hemisphere in summer, and our country is located in the northern hemisphere, as mentioned above, at this time, the sun altitude angle is large, the ground obtains more solar radiation, and the temperature is higher. In the Northern Hemisphere, the days are longer and the nights are shorter, and the calorie income is higher. In fact, the sun is farther away from us in the summer and closer in the winter.

Hello dear. The natural reason for the summer heat is that in the summer, the height angle of the sun is large, the sun destroys the light and hits the earth directly, the energy density of the solar energy reaching the earth is large, and the earth gets more energy from the sun, so the summer is hot. In addition, the sun is directly shining in the northern hemisphere in summer, and our country is just in the northern hemisphere, as mentioned above, the sun altitude angle is large at this time, the ground receives more solar radiation, and the temperature is higher.

Dear, expand it for you. The summer solstice is the hottest solar term of the year, representing the arrival of Peiqing in hot weather, but the summer solstice is not the hottest time of the year. "Summer solstice three Geng several head volts".

That is to say, the beginning of the dog days is July 12, 2017, and the dog days are the hottest and most stuffy time of the year, so as the saying goes, "hot in the dog days" The summer solstice is not the hottest time, and the real hot weather is calculated based on the summer solstice and the beginning of autumn. Around mid-July and mid-August, temperatures are highest across China, with highs of around 40 degrees Celsius in some areas. After the summer solstice, the temperature is high, the sun is sufficient, and the rain increases, which not only creates conditions for the vigorous growth of crops before distribution, but also competes with crops for water and fertilizer for sunshine.

However, the summer solstice is not hot", "the summer solstice is three Geng several heads". Although the summer solstice means that the hot summer has arrived, it is not the hottest time, and the temperature continues to rise for a period of time after the summer solstice, about another twenty or thirty days, which is generally the hottest weather.

1. Wear light-colored clothes: because white and light-colored clothes are slow to absorb heat, dissipate heat quickly, and wear cool; Black or blue clothes absorb heat quickly, dissipate heat slowly, and are stuffy and easy to heat stroke. acres and towns.

2. Wear a heat-insulated straw hat: The raw materials of woven straw hats are mostly hollow, and a certain amount of air is stored in them, and air is a poor conductor of heat. In addition, the straw hat also has a certain shading effect on sunlight radiation.

3. Rest at noon: The weather is cool in the morning, so the departure time should be early. Rest at noon and revisit after three or four o'clock in the afternoon.

4. Drink more lightly salted boiled water: Sweating a lot during summer travel reduces the salt in the body, and drinking more lightly salted boiled water can replenish the lost salt in the body. When drinking light salt water, it is necessary to drink it in small amounts and many times to have an effect.

5. Bring heatstroke prevention medicine; When traveling in summer, you should bring some medicines such as Rindan, Feng Youjing, and ten drops of water. The summer is hot because the solar altitude angle moves to the Tropic of Cancer after the summer solstice, the days are long and the nights are short, forming high temperature and rain, strong atmospheric inverse radiation, and good thermal insulation effect, so the summer is hot both day and night.