The Caspian Sea is about to evaporate completely, the reason why experts are concerned

The Caspian Sea lies between the borders of five countries: Russia, Iran, Turkmenisistan, Kazakhstan and Azerbaijan, helping to regulate the climate of the surrounding nations.

Not only that, the Caspian Sea is also a huge oil and gas depot, which plays an important role in the seafood economy of these countries, which is an extremely important source of resources for neighboring countries.

But there is a phenomenon that has been going on here that could cause the Caspian Sea to be inundated for 75 years!

That is the warning that scientists have made after studying to find out the cause of intense evaporation of seawater (with evaporation rate of 7cm / year, making the sea level decrease in total more than 1.5 m from 1996 to present.

Caspian Sea

Global warming due to climate change is the cause of intense water evaporation at the Caspian Sea.

Dr. Jianli Chen is also a scientist leading the following research team feeling very strange and curious about the phenomenon: "Why is there so much change?". Since then, he and a group of scientists have explored the cause of the problem.

The results show that the rear culprit is determined to be due to climate change (more specifically, global warming).

This new study, published in the journal Geophysical Research Letters, then points out that the annual average temperature of the sea surface of the Caspian variable increased by 1 degree C in both studies (from 1979 to 1995). and 1996 to 2015).

Photograph of the Caspian sea from satellites. (NASA photo).

The team at the University of Texas Space Research Center used twin satellites launched into space in the 2002 Grace mission to study the evaporation rate of the Caspian Sea.

Through the comparison of data obtained from Grace satellites and ground-based data (such as the amount of water flowing into the sea from rivers, sedimentation and evaporation rate), the team of scientists was able to obtain The most accurate and comprehensive view of what's happening in the Caspian Sea.

Geophysic Dr. Clark Wilson at the University of Texas Department of Earth Sciences, co-author of the study, said:

"The actual control and also the cause of sea level change over a long period of time is due to water evaporation, which is completely dominated by temperature."

The Caspian Sea is surrounded by 5 countries.(Photo Jianli Chen).

Dr. Anny Cazenave, a CNES geodetic at the observatory LEGOS (short for Laboratoire d'Etudes en Géophysique et Océanographie Spatiales) is located in Toulouse, France - the person who is not involved in the study said:

"This study has provided the first compelling evidence that sea evaporation also plays a more important role in sea level change compared to sedimentation or the process of supplying water from rivers. .

"If the temperature of the Caspian sea surface continues to increase, the evaporation will also be stronger," Anny Cazenave said.

The Caspian Sea lies between Russia and Iran, with a maximum depth of 1,025 m which is the longest river in Europe, the Volga, which supplies the main water (80%) and the Ural River.

Although it is called the sea, many people misunderstand it, but it is actually a lake .! (but because salinity is nearly 1/3 of the salt concentration of the sea, it is called so). This is also the largest lake in the world in both area and volume.

The Caspian Sea did not reach the sea at all, so there was no escape stream, so there was a very strange phenomenon in the Caspian Sea: the sea level changed dramatically. (example: in 2004, the sea level here is lower than the world sea level . 28 m!).

This change depends largely on air conditions in the North Atlantic (because of the determination of the Volga river's rainfall falling into the Caspian Sea), so the Caspian Sea becomes a very accurate barometer, reflecting the The impact of climate change is sharp.