As mentioned earlier, due to the abnormally high temperature of the ocean in 2023, the warm and humid air flow from the south and the cold air from the north of the Eurasian continent are extremely strong. When the cold air builds up momentum at high latitudes, the warm and moist airflow will move northward, causing the temperature of the continent to rise sharply. When the cold air in the high latitudes completes the southward accumulation, it will form severe cooling and freezing, strong winds, heavy snow, freezing rain and other weather. This climate pattern makes the climate in Chinese mainland this winter very much like a continuous roller coaster, so far it has encountered several rounds of violent warming, cooling and blizzards, and the freezing rain in Hunan, Hubei, Anhui and other places before the Spring Festival has brought serious problems to people returning to their hometowns to celebrate the Spring Festival.
After the Spring Festival, Chinese mainland experienced a round of warming, and by February 14-15, Henan, Shandong, Jiangsu, Anhui, Hubei, Hunan, Jiangxi and other places experienced another round of rapid cooling, so that the heat in the north was swept away. But this round of cooling came and went faster, from February 16, Chinese mainland has seen a more violent temperature, strong warm and humid air flow began to large**, from Hainan to Heilongjiang, the northeast plain is fully thawed, the middle and lower reaches of the Yangtze River and North China The high temperature has risen to more than 20 degrees, and the maximum temperature in Lingnan and other places has reached 30 degrees, almost stepping into summer.
According to the law of climate change this year, when the big warming comes, the temperature will not be far away, and after the 16th, the super cold air has quietly entered Xinjiang and lurked, and from February 19, it has launched a large-scale attack to the east and south.
Since China was enveloped by strong warm and humid air currents from Lingnan to Northeast China before the arrival of super cold air, when the super cold air arrived, the vast areas of Chinese mainland will experience violent cooling, snow or freezing rain, and some areas will also have heavy snowstorms and strong convective weather.
The temperature change is like a continuous roller coaster that has become a fixture this winter, and I believe my friends have become familiar with it.
The global average sea surface temperature in 2023 soared by 023, making 2023 the hottest year for the global oceans, and September the highest month on record. In addition to the continuous rollercoaster of continental temperatures, violent warming and cooling, and violent snowfall and freezing rain, high ocean temperatures may also have more serious effects.
First, the high temperature of the ocean leads to a rise in sea level due to the expansion of the water body, which leads to drastic changes in the stress of the bottom shell.
According to data from some research institutions, between 1901 and 2018, global sea level rise was 15 to 25 centimeters, or an average of 1 to 2 millimeters per year. Between 1993 and 2018, thermal expansion of sea water caused 42% of sea level rise, 21% of glacier melting, 15% of Greenland ice sheet melting, and 8% of Antarctica's ice sheet melting. With the abnormal rise in sea surface temperature in 2023, the thermal expansion of water bodies due to the melting of glaciers or ice sheets will lead to an accelerated rise in sea level, which will lead to drastic changes in crustal stress.
Second, the high temperature of the ocean brings about a "porter" effect.
With the unusually high temperatures in the oceans, the warm and humid air currents are unusually strong throughout the year, and the cold air is extremely strong, bringing hurricanes and heavy precipitation to the Eurasian continent in the summer and heavy snowfall in the winter.
This winter we are experiencing, there have been countless reports of record-breaking snowfall in various places.
By February 5, 2024, much of Nova Scotia on Canada's east coast was hit by a historic multi-day snowstorm, with 103 centimetres of snow falling at Sydney Airport and 150 centimetres in central Sydney, far exceeding the 102 centimetre set in 1992.
The same is true on Canada's West Coast, with many parts of B.C. and the Yukon experiencing snow thicknesses exceeding record records this winter, such as Abbots Ford's 29 centimeters of snow on January 18, far exceeding the original record of 74 cm.
By early February, Anchorage, the largest city in Alaska, had accumulated more than 254 centimeters of snowfall, and many buildings had been damaged.
This is also the case in China.
Blizzard in China has been going on since November 2023.
As of November 8, 2023, there have been heavy snowfalls to heavy snowfalls in southeastern Inner Mongolia, eastern and southern Heilongjiang, central and western Jilin, especially in the eastern part of Heilongjiang, with extremely heavy snowfall at Tangyuan, Fangzheng, Yanshou, Huanan, Jiamusi, Shuangyashan, Jixian, Baoqing and other stations, and the snowfall in Jiamusi in 24 hours has reached 503 mm, 52 stations broke the local record for snowfall in a single day in November. In November 2023, there will be a lot of precipitation in the Northeast, see the figure below, a total of five rounds of rain and snow have been experienced before and after, "There is always endless snow, either in the snow or on the way to the snow", this is the description of Northeast netizens.
On December 22, 2023, the Shandong Peninsula suffered frequent cold blizzards, and by the morning of the 22nd, the snow depth at Weihai Wendeng Station reached 74 cm, breaking the new snow depth record of 55 cm set since the station was established on the 21st, and the original snowfall record was 54 cm set on December 13, 2005.
From January 31, 2024, snowfall has occurred in 18 provinces and cities in China, and many areas have suffered heavy snowfall, statistics show that among the provincial capitals, 9 cities have reached the highest precipitation in the same period in history, and more than 50 stations have broken the record of snow thickness for the same period in history.
It is not surprising that in large countries such as Canada and China, which are very geographically vast, there are always some places that break snowfall records every year, but this year, the snowfall in countless regions has broken snowfall records together, which is the result of the high temperature of the ocean causing the warm and humid air currents to be extremely strong, and the cold air is equally strong.
High ocean temperatures can cause glaciers and ice sheets to melt at high latitudes, and heavy snowfall caused by high ocean temperatures will "transport" water evaporated from the oceans to the continents. It should be noted that these snowfalls will not completely melt in the summer of that year, for example, the snow cover on the summit of the northern section of the Rocky Mountains on the west coast of North America is perennial, the snow cover in Alaska and many parts of the Russian Far East is also perennial, and the snow cover in some places in the Northeast is also perennial, which is equivalent to transporting a large amount of ocean water to the land in high latitudes, especially on the high mountains, which again leads to a huge change in crustal stress.
In addition to the above two points, high ocean temperature will also lead to a large number of extinction of marine life, and will also lead to drastic changes in marine ecology, which are not considered here) To sum up, factors such as water expansion brought about by abnormal high temperature in the ocean will lead to a sharp change in the stress of the earth, and the high temperature of the ocean will lead to the accelerated melting of ice sheets and glaciers, and then there will be a process of migration of marine water to the land plateau area, which will further lead to a sharp change in the stress of the earth, and when the stress continues to accumulate, it will need to release energy, Therefore, after the high temperature of the ocean in 2023, the most important thing to watch out for is the emergence of strong earthquakes.
Which places are more dangerous?
There are three main ** belts on the earth: the first is of course the Pacific Rim ** belt, which is the most widely distributed and most ** belt in the world, which releases about three-quarters of the world's energy, and more than 80% of the world's strong earthquakes above level 7 occur in this region, see the yellow line in the figure below. The second is the Eurasian Belt, also known as the Mediterranean-Himalayan Belt, as shown in the green line below. The third is the ridge zone, which is distributed in the Pacific Ocean, the Atlantic Ocean, and the Indian Ocean, and is a submarine mountain range, also known as the ocean ridge zone. See the blue line below.
The areas with record snowfall this year are basically concentrated on both sides of the North Pacific Ocean, that is, on the North American plate and the Asian continental plate, indicating that this region is the region with the most drastic changes in earth stress, so East Asia, the Russian Far East, and the west coast of North America are the most vigilable. According to the air zone theory, other areas of the Pacific Rim have experienced strong earthquakes of magnitude 8 or more in the past 20 years, and only the Russian Far East and the west coast of North America are still in the air zone; According to the theory of drought earthquakes, after the occurrence of the great drought 3There will generally be ** within 5 years, the more severe the drought, the higher the magnitude, the closer to the third year, the higher the magnitude, the above two areas in the summer of 2022 eruption of high temperature and drought is still fresh in the memory, when a large number of rivers dried up, making these two areas the most alarming.
The high temperature of the ocean will bring about drastic changes in the stress of the earth's crust, and this year and next year are likely to be the most frequent cycle of volcanic eruptions.
It's a worldwide problem, and we, the amateurs, are even less likely to make it. However, based on today's series of special geographical and climatic signals, people should maintain a high degree of vigilance against strong earthquakes, and once the signals of life appear, including abnormal changes in groundwater, animal anomalies, ground sounds, ground light, ground temperature anomalies, etc., they should know what to do.