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Vanch-Yakh Glacier

earth science Maturity 7-9 Next article →

The Vanch-Yakh Glacier is a massive, moving body of ice located in the Pamir Mountains. It sits in the north-central Gorno-Badakhshan province of Tajikistan. This glacier is remarkably significant because of its immense scale. It is currently the longest glacier in the world outside of the polar regions.

Fedchenko Glacier
Fedchenko Glacier

While polar regions contain the largest ice masses, the Vanch-Yakh stands alone in its category elsewhere. It is a long and narrow feature that covers an area of over 410 square kilometers.

The glacier follows a specific path through the Yazgulem Range. It begins at a very high elevation of 6,100 meters. From there, the ice flows in a generally northward direction. It moves along a path that stays to the east of the Garmo Peak.

1982 expedition to Tartu Ülikool 350 (07)
1982 expedition to Tartu Ülikool 350 (07)

As the ice travels downward, it eventually melts. This melting process turns the solid ice into liquid water. This water empties into the Balandkiik River near the border of Kyrgyzstan at an elevation of 3,200 meters.

This movement of water creates a complex drainage system. The meltwater from the glacier feeds into the Balandkiik River first. From there, the water flows into several other major rivers. These include the Muksu, Surkhob, Vakhsh, and Amu Darya rivers.

Fedchenko Glacier
Fedchenko Glacier

Ultimately, all this water travels into the Aral Sea. This shows how a single glacier can influence the water supply for an entire region. The glacier acts like a giant water tower for the surrounding landscape.

The glacier is surrounded by many impressive mountain landmarks. To its west lies the Tajik National Academy of Sciences Range. It is also near Mount Garmo and Ismoil Somoni Peak. Other nearby features include Peak Korzhenevskaya and the headwaters of the Vanj and Yazgulyam rivers. To the south, you will find Independence Peak. To the east stands Gorbunov Peak, which reaches an elevation of 6,025 meters.

1982 expedition to Tartu Ülikool 350 (07)
1982 expedition to Tartu Ülikool 350 (07)

The glacier is also bordered by Altyn Mazar to the north.

History shows that the glacier is a changing environment. It was discovered in 1878. It was named after Alexei Pavlovich Fedchenko, a Russian explorer. However, he was not the person who actually discovered it. A German-Soviet expedition led by Otto von Mohl explored the area more thoroughly in 1928.

Fedchenko Glacier
Fedchenko Glacier

The glacier has shown different behaviors over the last century. Between 1910 and 1913, the glacier expanded and moved forward. In 1914, this movement was so great that it blocked the Balyandlik River. Between 1928 and 1960, the glacier began to recede. During this time, it stopped its inflows, such as the Kosinenko, Ulugbeck, and Alert glaciers.

The physical dimensions of the Vanch-Yakh Glacier are truly massive. The ice can reach a maximum thickness of 450 meters. The total volume of the glacier and its dozens of tributaries is estimated at 110 cubic kilometers. This volume is approximately one-third of the volume of Lake Erie.

1982 expedition to Tartu Ülikool 350 (07)
1982 expedition to Tartu Ülikool 350 (07)

Its length of 77 kilometers makes it a giant compared to other famous glaciers. For example, the Siachen Glacier is 76 kilometers long. The Biafo Glacier is 67 kilometers long, and the Bruggen Glacier in Chile is 66 kilometers long. The South Inylchek Glacier in Kyrgyzstan is 60.5 kilometers long.

Understanding this glacier helps us understand the geography of Central Asia. In 2023, Tajikistan officially renamed the glacier as part of a derussification program. This change moved it from its former name, the Fedchenko Glacier, to the Vanch-Yakh Glacier.

Fedchenko Glacier
Fedchenko Glacier

This reflects how names and political identities can change even for ancient landmarks. The glacier remains a vital part of the Pamir Mountains' ecosystem. It continues to be a subject of study for scientists observing how ice moves and melts.

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🖼️ Images & Media (2)
File:Fedchenko Glacier.jpg
Fedchenko Glacier.jpg
File:1982 expedition to Tartu Ülikool 350 (07).jpg
1982 expedition to Tartu Ülikool 350 (07).jpg
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