If Yangtze River has memories, it will definitely remember the summer of 2022, because this summer it almost became a "long-term worker".
As one of the mother rivers in our country, the Yangtze River gives people the feeling that it will never be short of water. Even in winter, the Yangtze River will flow as usual if it freezes.
The water volume of the Yangtze River in previous years is compared with 2022
Not only that, the Yangtze River is still a dangerous existence in summer, and cities along the coast have basically been flooded by it.
It is like this, which is not short of water, but it ushered in its own crisis in 2022 and almost stopped flowing!
meandering Yangtze River
Yangtze River water shortage
Yangtze River originates from Tanggula Mountains on the Qinghai-Tibet Plateau , flowing eastward, and the Yangtze River collects water along the way. The water at the source of
comes from the melting of snow water from the alpine mountains, plus some local groundwater . It was originally a small river. In the process eastward, it gathered tributaries from other places and rainwater along the way.
The entire Yangtze River is divided into three sections of , upper, middle and lower . The upstream is also called Jinsha River . Because it spans the first and second stairs, also runs to Hengduan Mountains and takes for a trip to , and the water flows very fast.
The source of the Yangtze River
There are multiple tributaries in the upper reaches of the Yangtze River, which injects huge energy into it. It is from here that the Yangtze River has become wider.
Another reason for the large water flow is that The climate zones flowing through the Yangtze River are mostly monsoon climate . It is hot and rainy in summer, and the annual precipitation is above 800 mm.
So don't think that the water in the Yangtze River is all alpine snow water. It is more from the water along the way and added , especially the water and rainfall in tributaries.
This also gives the Yangtze River a hidden danger, that is, once there is insufficient precipitation in the basin area, the water level will drop.
The upper reaches of the Yangtze River are called Jinsha River
Hidden danger broke out in the summer of 2022 because The Sichuan-Chongqing region in the upper reaches of the Yangtze River did not rain for a long time, resulting in a decrease in the water volume of tributaries, and The Yangtze River also showed that the "hairline" retreated .
You should know that in the past summer, the Yangtze River was full of heavy rainstorms, and even major floods occurred in 1981 and 1998. People along the coast still have an impression of this.
So, why would the Yangtze River, which is not water-deficient, become a water-deficient river in the summer of 022? If it weren't for the existence of Three Gorges Reservoir , the downstream would have also suffered the drying.
1998 flood
In fact, the summer of 2022 is not only the Yangtze River and its tributaries, but many rivers in the northern hemisphere are affected by high temperatures and droughts, especially in Europe.
Anyone who has studied geography knows that Europe, especially the western part of Europe, has a temperate ocean climate, and the temperature will not be too high all year round, but in the summer of 2022, everything is overturned.
, which is famous for its marine climate, in some places, soared to above 40℃ , which is unexpected for the British who have been raining all year round.
High temperatures ravage
In addition to the United Kingdom, another country with marine climate, The famous Danube and Rhine have dried up , leaving only a pool of water in the center of the river. has not as much water in the bathtub.
The blue Danube turned into the earthy Danube, and the World War II warship at the bottom of the river was exposed.
South Europe is mainly Mediterranean climate , was originally hot in summer, but as a result, the heat wave became even hotter and rushed directly to the highest record.
People in the entire northern hemisphere are asking the same question: What's wrong with 2022?
Rhine water level dropped
Effect of volcano
People who have been tortured by heat waves suddenly thought of volcanic eruption at the beginning of the year 2022 volcanic eruption . Although the seabed of Tonga has long been calm, the mark left by the volcanic eruption is not so easy to erase.
In history, a volcano erupted in Indonesian , and caused a summer-free year . So will Tonga volcano repeat the same mistake?
Some people may say that there is definitely not. The so-called summer year refers to the summer of that year, the temperature was not high. But look at the summer of 2022, is it still called low temperature? Everyone is almost baked!
Tanga Undersea Volcanic Eruption
Volcanic Eruption and the Year of Summer are mainly related to Volcanic Ash and volcanic gas , especially sulfur dioxide . The action of this type of gas is completely opposite to carbon dioxide , which triggers ice chamber effect .
Simply put, sulfur dioxide will cause the temperature to drop. If carbon dioxide keeps warm, then sulfur dioxide is to refrigerate .
However, in the summer after the Tonga volcano eruption, what we welcomes people is not cooling down but various high temperatures. Why is this?
is obvious. Tangjia volcano does not have the greatest impact on this summer heat wave. also indirectly reflects that the carbon dioxide content in the atmosphere is relatively high. Sulfur dioxide does not take any advantage in entering the climate, and carbon dioxide is still the main one.
Tonga volcano's ejection port size
Most of these carbon dioxide comes from human activities . Imagine that the sulfur dioxide emitted by a volcano will fight against the carbon dioxide emitted by factories around the world. The volcano is obviously not a rival in this regard.
Even if the eruption intensity of Tonga volcano is relatively high, it is unable to shake the warming trend of the entire earth.
There is a very interesting phenomenon in Europe. Over the past 200 years, the average temperature in the European region has increased by about .1℃ , while the average temperature in the Mediterranean region has increased by .5℃ .
Then this 2022 heat wave, the Mediterranean region of Europe is really hot.
So it can be seen that the water volume at the source of the Yangtze River has decreased, and has no major relationship with volcanic eruptions in tropical regions , and Global warming is the culprit .
2022 The northern hemisphere is too difficult
The warming earth
Also in the summer of 2022, Other places on the earth began to have abnormal climate . For example, Saudi area has arid desert climate all year round, and it actually rained heavily in summer.
Since there has never been such rainfall, some cities in Saudi Arabia have experienced severe flooding , and camels have been flooded .
my country's Tarim Basin has also changed the drought in the past. 1 rivers ushered in a long-lost flood in summer .
Flood rises in Saudi Arabia
If this happens every year, it won’t take long to go back to the climatic environment of the ancient country, Lop Nur Once again, .
This phenomenon is called by meteorologists by "rain belt northward" , especially East Asia , most of which are in monsoon climate, and rainfall is related to monsoon and ocean currents .
Global warming disrupts monsoons in the Pacific and Indian Oceans, resulting in reduced precipitation sent to East Asia.
Tarim River flooded
At the same time, cold air from Siberia floated all the way southward . After the water vapor encountered the hot air above, liquefied into rainfall, increased the rainfall in the north .
This heat wave presents a feeling of north-south switching. In the south, which is famous for rain, not only did the river dry and the water level drop, but even several freshwater lakes in my country, Poyang Lake and Dongting Lake, drought also occurred.
After the water of the lake evaporated, the mud at the bottom of the lake was exposed, and soon green grass grew, turning into Poyang Lake and Dongting Lake grassland . You can watch the wind blowing grass and see cattle and sheep without going to Inner Mongolia.
For a long time, this is not a good thing for our country and even the world.
Lake water is dry
Human beings cannot adapt quickly
Our country's The population density is more south and less north, and more east and less west . The reason for this distribution is that, first, it is because of the economy and second, it is because of grain output.
Several provinces with large populations are also major agricultural provinces, because has enough food to support more people .
Jiangnan is called the "home of fish and rice", and Sichuan Basin is called the "country of heavenly affairs" because of its excellent agricultural production.
and agriculture has been relying on the weather since ancient times and . The precipitation and temperature in the southern region are suitable for most of the time to grow crops, and there is basically no gaps all year round.
The hometown of fish and rice
If the climate changes, the south will be filled with high temperature and drought every year, and heavy rains in the north will cause disasters. Then, in the long run, the south with a large population will be short of food.
Some people will say that this is not easy to deal with? If the north becomes hot and the precipitation is more, then just transfer these plants to the north.
Although that is the case, people in the north and south have maintained such living habits for more than 5,000 years. How can they change overnight?
What's more, such drought and flooding are not limited to our country . Many regions in the world will enter this situation, and the world is not so easy to change.
The crops have no harvest
Many people regard this climate change as the precursor to the sixth mass extinction of , and believe that humans will fall.
In the view of scientists, climate changes will naturally cause great shocks to the earth's organisms, and humans are no exception, but extinction is too much. Humans have a difficult life, but it is really .
High temperatures will increase the probability of many diseases. In the summer of 2022 alone, thousands of people died due to the high temperature in Europe. In the flooded Saudi Arabia, countless people and camels have died.
Human beings are experiencing the sixth mass extinction?
In this change, no one can escape unless they leave the earth.
