The land still freezes despite experiencing one of the hottest summers in history

Besides this location, there are still many permafrost on strange places on Earth.

Researchers have just found a strange piece of land in China that still freezes even though it has experienced an extremely harsh summer, one of the hottest summers in history.

Such perpetual pieces of ice are not uncommon in particularly cold lands or high mountains on our planet, but the strange thing here is the town of Pingquan , which finds frozen lands. This does not meet either of these conditions.

This permafrost is known by scientists in the summer of 2011, when some local climbers discovered them at 900 meters above sea level, and then the air temperature only over 26 degrees C.

This permafrost is known to scientists in the summer of 2011.

The permafrost is not something rare, but it only appears in areas near the Earth's extreme. These cold plots are known as "strange low-temperature temperatures , " farther than the 600km limit of permafrost that creates continental Eurasia and is less than 1 km above the ink. seawater.

One of the ice blocks in that strange phenomenon, farther from the permafrost above the south, lies on the Tibetan plateau at 4,700 meters altitude.

And that permafrost in China is also not small, it is 80 meters long, 20 meters wide and has a depth of up to 10 meters. What surprised the researchers was that the big block of ice survived through a long summer.

This finding is so interesting that a team of researchers at the Chinese Academy of Sciences spent four years, from mid-2011 to 2015, to observe the region. During that time, the air temperature in the region reached more than 32 degrees C.

Geographical location map of strange land.

After many experiments, the research team has found that the land is still in frozen state for many years, because of the special nature of the land here: on the ice block is a 30cm thick layer of peat and below they are a thick layer of sand. Perhaps that is why this ice block retains a low temperature after such a hot summer.

"Because cold air is heavier than hot air, and they tend to replace the higher temperature air in the empty spaces between rocks and sand and create air convection in the winter. In the summer, there is no convective exchange of air , " the team explained.

"Basically, the imbalance between the heat lost in the winter and the heat collected in the summer has created a standardized heat loss year-round, which in turn makes the background temperature lower than normal.

This large sand block acts as an insulating layer, preventing heat exchange from occurring in the summer.

The humus layer near the surface also increases the effect of this effect. Here summer is rainy, and so the frozen soil contains a lot of moisture when winter comes. So in the winter, it pulls in the extra cold, but in the summer, it prevents the cold from escaping.

This study not only answers the question of the mystery of the permafrost in Binh Tuyen province , but it also helps construction engineers have a solution to protect the structures built on permanent ice blocks. such.

The closest example is that scientists have applied the method of protecting the building to the railroad of Qinghai - Tibet, the route that runs along the permafrost of the plateau of the same name.

With a layer of macadam spread over the permafrost, the research team said that they could keep the ice stable as the temperature changes in the seasons throughout the year.