Roger G. Barry Archives and Resource Center

Qori Kalis Glacier

Where on Earth is Qori Kalis Glacier?

World Map with Target Showing Location of Arapaho Glacier

Since 1963, when measurements of the glacier began, Qori Kalis has retreated 1.1 km or by almost 50%. In 1991, a large proglacial lake began forming where the bottom of the glacier used to be.


Qori Kalis Glacier Pair
Qori Kalis, photgraphed by L.G. Thompson in July of 1978 and 2004.

"In the last 14 yr[s] (1991-2005), Qori Kalis has been retreating ~10 times faster (~60 m/yr) than during the initial measurement period of 15 yr[s] from 1963 to 1978 (~6 m/yr)"-L.G. Thompson, et al. (2006).

Glaciers can be very important to their surrounding communities for things such as water and hydroelectric power created from the glacial meltwater runoff. Qori Kalis has been monitored and studied since the early 1960's by the Electroperú, a hydro electric company in Peru, to gauge its use as a power source.

High altitude glaciers are also important to monitor because chunks of the glacier can break off or melt water can cause flooding to towns and cities below them. When a glacier forms a proglacial lake, it becomes particularly hazardous because the lake can overflow and flood the valleys below it. In March 2006, a large chunk of Qori Kalis came off and splashed into the lake at the bottom sending a large wave of water down into the valley.





Quick Facts

Location: Peru, South America
Coordinates: 13.91° S, 70.83° W
Average Elevation: 5100 m
Glacier Type: Valley, Alpine
Current Size: .49 sq km
Rate of Loss: ~50% from 1963 - 2009

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Lonnie G. Thompson

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