BBC Uzbekistan has reported, quoting the country’s Hydrometeorology Research Institute, that at the beginning of August an expedition of Uzbek and German scientists trekked to the Pakhtakor glacier, situated in the eastern part of Uzbekistan.
The study of the Pakhtakor glacier, which is extremely difficult to reach and located in the Bostonliq district of the Tashkent region, near the borders with Kyrgyzstan and Kazakhstan, started in July of last year.
The latest expedition found that Uzbekistan’s largest glacier tongue (an extension of a glacier or ice stream projecting seaward) had retreated by 20 meters in the last year. The surface of the ablation part (the initial part of the glacier where the ice melts faster) has melted by 3 meters.
Pakhtakor is one of the largest glaciers feeding the Pskom River. There are about 140 large and small glaciers in the Pskom River basin, which has a total area of 128 square kilometers.
According to the BBC report, after the collapse of the Soviet Union, studies of permafrost were rarely conducted in other Central Asian countries except Kazakhstan. Although there are few glaciers in Uzbekistan, they play an essential role in the ecosystem. In low-water years, glaciers provide up to 25% of the total flow.
Maksim Petrov, the head of the Center for Glacial Geology at the Institute of Geology and Geophysics of Uzbekistan, says the country’s glaciers are melting at different rates.
“The melting rate is almost in line with the average rate in Central Asia. However, the melting rate in our mountains in the eastern part is not high, and the glaciers have melted only up to 20%. The glaciers in Surkhandarya have melted by 40%. The most catastrophic situation is in Kashkadarya — up to 70%,” Petrov said at a roundtable discussion held by Cabar Asia in May.
Petrov added: “Large glaciers are breaking up and breaking into pieces. It seems the number of glaciers is increasing, but their area is shrinking.”
Various scientists point out that the shrinking area of glaciers has yet to seriously affect the water balance in Central Asia, and the observed water shortage is mainly caused by population and industrial growth.
But in 2015, German researchers warned that glaciers in the Tian Shan mountains, which play an essential role in maintaining the water cycle in the region, are rapidly melting. Half of the total ice mass is forecast to melt by 2050. “Today, Tian Shan is losing an amount of ice equivalent to twice the annual water consumption of all of Germany,” the 2015 study stated.
