In the past two days, the heat in the southern part of the mainland has a feeling that summer is coming soon-at the critical juncture when the May Day holiday is approaching, the cold air will move southward, control the entire south of the Yangtze River, infiltrate into southern China, and greatly reduce the atmospheric energy in the south. After sporadic strong convection in Zhuhai, Guangdong, Hong Kong, Macao, Guangxi and other places, the current round of severe convective weather ended late at night on April 30. From May 1, the central and southern parts of Guangdong will turn into normal and non-frightening heavy to heavy rain, and the rest of the country will turn into sunny to cloudy or cloudy light rain weather, which will not affect travel in general, but the next round of violent storms and rains will start on the night of May 3.
1. Antarctic -80 degrees cold king site
Just as the continent is alternating with hot and cold air, and the rainfall pattern is changing, some unusual weather events are happening at the southern tip of the planet: on April 29, Antarctica's Vostok Station set a new global record for the lowest temperature ever measured this year, reaching a staggering -80.0 degrees.
Located near the South Pole, this research station is one of the coldest places on Earth and one of the limits of human activity. It is reported that the perceived temperature here is as low as minus -107 degrees, and even if you are wearing heavy thermal clothing, you can only stay outside for a few minutes, otherwise you will get frostbite or freeze.
2. The global temperature difference exceeds 120 degrees!
On the same day, the temperature in Dongfang City, Hainan Province, the "same name" as Dongfang Station, was as high as 35.9 degrees, and the residents here were enjoying the summer heat, and the temperature difference between the two "Dongfang" reached 116 degrees. And that's not the limit of the temperature difference. In fact, on April 29, the temperature of some stations exceeded 40 degrees in the mainland alone, such as Hotan in Xinjiang, where the maximum temperature reached 40.3 degrees. This means that the temperature difference between the mainland and the Antarctic station is more than 120 degrees.
In fact, with the return of the direct point of the sun to the Northern Hemisphere, Antarctica has just entered the six-month polar night period (April-September), during which the sun at the South Pole sets for the last time around the vernal equinox and does not rise again until six months later near the autumnal equinox.
Therefore, such a low temperature is relatively rare for the entire Antarctic continent to appear just after entering the polar night period, and it is generally easier to have very low temperatures in the late polar night period. The "East" station in Antarctica can be said to be the cold pole recorded by humans, with an extreme minimum temperature of -89.2 degrees Celsius (July 21, 1983), and a temperature of -80 degrees Celsius measured on April 29, which is also the first time since April 19, 1998 that a low temperature of -80 degrees Celsius or less has been measured, and the fourth time in the history of surveys since 1958.
3. Netizen: Is the earth sick?
Extreme cold in Antarctica, with a global temperature difference of more than 120 degrees, is this the earth sick? Judging from the records of the whole of Antarctica, this extremely cold winter can be classified as "short-term fluctuations" - Antarctica has huge continents, and the weather fluctuations are actually much greater than those of the North Pole, and just one season cannot change long-term progress, while climate is something that happens over a longer period of time, perhaps decades or even generations.
According to the Antarctic temperature observation data since 1956, the average temperature of Antarctica has a clear trend of higher in recent decades, and the cold time is becoming less and less, and the short-term severe cold cannot reverse the long-term trend of Antarctic warming, but because the climate of Antarctica itself is very cold, the temperature change is not as obvious as in other regions.