Traditional Culture Encyclopedia - Traditional stories - At present, China's high-temperature heat wave event has reached the strongest, and its duration will continue to be extended. How to deal with it?
At present, China's high-temperature heat wave event has reached the strongest, and its duration will continue to be extended. How to deal with it?
Human beings develop new energy sources in order to alleviate various extreme climate problems caused by climate warming.
However, various extreme climate problems have in turn slowed down the pace of human development of new energy.
I have to say that this is a question worth thinking about.
This is like a tug-of-war. While developing new energy sources, human beings are also struggling with extreme climate problems.
It is human's resolute development of new energy that finally reduces the frequency of extreme weather phenomena. ?
Or more and more extreme weather phenomena, which finally make mankind shake the determination to develop new energy.
At present, the main problem is that the global energy crisis has forced countries such as Europe and America to restart coal-fired power in order to ensure energy stability.
From last year to this year, countries such as Europe and the United States have experienced a sharp increase in coal-fired power generation for two consecutive years.
This is not conducive to human solidarity to reduce carbon emissions.
We live on the same earth, so as long as others fall off the chain, the climate problem will be difficult to solve.
This is a barrel effect, depending on the shortest board.
This is also the most difficult place in the world to solve the problem of climate warming.
First of all, the weather in the Yangtze River basin has become unstable. For example, 0 is a wet year and 2022 is a dry year, but overall, the Yangtze River
The rainfall in the basin will decrease. The catastrophic flood once in 54 years, or the once in 70 years and once in a thousand years, is estimated to be in the next 300 years.
The chances are relatively small every year. The probability of super flood will be smaller, and there will be more general flood water like 1998 once every 20 years. 98 years
Although the flood is very heavy, the main problem is that Dongting Lake has weak regulation ability, which makes the water level of the river too high. Judging from the flood volume, it is still 54 years.
There is a gap, not a historical flood. Although this is only today's satellite image, it should be obvious that the rainfall in the north has indeed increased in the last decade, but it has not.
100 to 300, generally unchanged, and the main rain belt continues to press northward.
In fact, in the past 20 years, the western United States has been in a state of long-term drought, and short-term precipitation in winter is not enough to solve the problem.
There is a serious water shortage in this area.
The intensification of drought in the western United States this year is the result of long-term accumulation.
Including, the water levels of Lake Mead and Lake Powell, the top two reservoirs in the United States, are at historical lows.
So this year, seven States in the western United States staged a scene of grabbing water.
In fact, North America suffered an extreme heat wave last year, and the highest temperature in some parts of Canada even reached 49.6 degrees Celsius, which was broken for four consecutive days.
The highest record in history.
Second, the traditional climate dividing line in China is Qinling and Huaihe River, and the climate dividing line in China will obviously press north to northwest in the future.
To put it simply, it will move to the vicinity of the original "Hu Huanyong" line, replacing today's Qinling Huaihe River line, and North China will become very humid and common.
The rainfall increased from 400-600 mm to 600- 1000 mm, and the rainfall in the west of Hu Huanyong line also increased or decreased accordingly.
Rainfall generally increased from less than 400 mm to more than 600 mm.
In fact, with the increase of temperature, now we may be closer to the temperature of Yangshao culture 5000 years ago, Yangshao.
Period.
A large number of civilized sites are in this line, which is also worth considering. This is mainly because with the warming of the weather, after the monsoon goes north, the cold air will quickly go south and push the main rain belt back to the south. But now that the temperature is getting warmer, the main rain belt may only retreat, and the "autumn rain in West China" will be greatly strengthened. Generally speaking, the climate has been unstable for decades, but generally speaking, the current temperature may have exceeded that of Han, Tang and Zhou Dynasties.
In the next few decades, it will rise to the "Yangshao period", or there will be basically no major mistakes. The average annual runoff of the Yangtze River will decrease by 10%.
The annual runoff of the Yellow River will increase by 30% to 50%.
Third, as a climate discussion, especially a long-term climate discussion in the future, what we really need to pay attention to is not the heat wave in the Yangtze River basin, but of course now.
Heat waves are on the hot list almost every day, but the discussion of extreme weather events should pay more attention to the long-term impact.
The ring. Summer is bound to end, and before long, the "Autumn Rain in West China" is bound to come. Rainfall in the south is 9.
At least in Sichuan in June, the Hanjiang River Basin will be replenished.
What really deserves attention is not the heat wave in the Yangtze River basin, but the heat wave in the Qinghai-Tibet Plateau, but what really matters here is the heat wave in the Qinghai-Tibet Plateau.
Heat wave, in the past half century, people who study hydrology and climate change in China have paid close attention to the climate change on the Qinghai-Tibet Plateau.
For example, the relationship between earthquake and flood, and the relationship between snow line and climate in Qinghai-Tibet Plateau. This time, the western part of the Three Rivers has reached most parts of Qinghai.
It's so hot, this effect may be long-term, even on New Year's Eve.
Fourth, water vapor content is not an inevitable condition for rainfall. On a large scale, the influence of cold and warm air can form a large range of frontal rain.
, is the basic condition of rainfall, it is obvious from the picture that the Yangtze River basin, especially the Sichuan basin, is rich in water vapor content, but
The current situation is that it can't rain at all in Sichuan, with a high temperature of 43 degrees, and the Yellow River "bends in a few words", that is, Hohhot goes north.
Beijing Line 1 is in the main rain belt recently. Compare and see the weather forecast for the next ten days.
So many fans, even some university experts and professors I have met, say that the South-to-North Water Transfer Project will transfer water to Xinjiang, then to Lop Nur, and even.
Go to Tarim basin and build a big lake. We can increase the precipitation by 200 mm in the northwest. It seems that the weather and rainfall are still lacking in foundation.
Ben's cognition. Suppose there is a big lake in Lop Nur. Although there is a lot of evaporation in midsummer, it is neither cold nor hot because it is controlled by the westerly belt.
Due to the hedge of airflow, it is difficult to form a large-scale precipitation enhancement condition. Of course, it can't be said that it will not increase at all, even tens of thousands of square kilometers of lakes.
Park. It is estimated that the increase in rainfall is only about 25 mm.
5. The climate in Central Asia is an example. Balkis Lake covers an area of 1.82 million square kilometers, and the larger Caspian Sea covers an area of 370,000 square kilometers, which is bigger than China.
The northern plain is still very big. But because it is controlled by a single airflow. Did not create any Jiangnan effect. We should try to cope with the heat wave in a short time, but the main problem is that we should have a good understanding of the long-term climate change in the future.
Longer-term cognition. We do have historical projects, but we do face historical difficulties. Jinsha River Cascade, Three Gorges, Danjiangkou and Duji
Ben fell into the flood limit. If the "autumn flood season" fails to produce heavy rainfall as scheduled, the situation of hydropower will be even worse in the second half of the year.
Yes Of course, in this case, we can't take care of power generation, so we can only continue to release water to fight drought.
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