Photo Friday: Equatorial Glaciers of Puncak Jaya

In 1989, Indonesia’s highest peak, Puncak Jaya (16,564 ft), within the Sudirman Range of Papua New Guinea, boasted five glaciers along its slopes. Today, these rare equatorial glaciers of Asia are nearly gone. By 2009, both Meren and Southwall, two of Puncak Jaya’s glaciers, had disappeared completely, and the remaining three glaciers, Carstenz, East Northwall Firn, and West North Wall Firn glaciers, were well on their way to doing the same, according to NASA Earth Observatory.

A group of scientists collecting cores on Puncak Jaya reported to NPR in 2010 that they had watched the glacier “drop 12 inches in just two weeks.” Tropical glaciers— 99 percent of which are found in the Andes of Bolivia, Columbia, Ecuador, and Peru— have retreated rapidly in the last century, many losing more than half of their ice mass. Puncak Jaya’s glaciers experience only slight equatorial mean temperature variation during the year (around 0.5°C), according to NASA. “Experts think rising air temperatures are the primary reason that the glaciers have lost so much ice so quickly,” the Earth Observatory reports, but it also notes that “changes in humidity levels, precipitation patterns, and cloudiness can also have an impact.”

View images of the massive retreat of Puncak Jaya’s glaciers.

 

The remnants of the disappearing glaciers of Puncak Jaya, West Papua, Indonesia (Source: NASA/Wikimedia Commons).

 

The glaciers of Puncak Jaya, May 26, 1989 (Source: NASA).

 

The remaining glaciers of Puncak Jaya, October 9, 2009 (Source: NASA).

 

Flying in Papua within the Sudirman Range in 2016 (Source: FlyingFishWorld Movies/YouTube).

 

A Cessna C208B PK-LTF flies over Papua in 2016 (Source: FlyingFishWorld Movies/YouTube).

 

A flight to the Papuan glaciers visits the Meren Valley (Source: pwarr3n/YouTube).

 

A view of Meren Lake, Papua (Source: Alan I. Wibowo/YouTube).

 

A recent ice core drilling trip to Puncak Jaya in Papua, Indonesia (Source: byrdpolar/YouTube).
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