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The natural world. Looking pretty for 3.5b years.

Glacial Lakes

Glacial Lakes

Author: Hugh Bollinger/Monday, June 13, 2016/Categories: natural history, video, sustainability, environment, adventure , climate change

                  Imja Lake and Glacier in Sagarmatha National Park, Nepal  (credit: Wikipedia)

Glacial lakes are good indicators of environmental change and research at Mount Everest is producing important results. The High Mountains Adaptation Partnership has been investigating Imja Lake in Nepal's Sagarmatha National Park since 2011. The research aims to better understand the threat to communities downstream if the rock-damed lake were to collapse.

According to the investigators, the Partnership has conducted the first bathymetric (aquatic) survey of the glacial lake revealing that it holds nearly twice the volume of water as was previously estimated. They also conducted the first ground-penetrating radar survey of the lake's terminal moraine revealing a previously unknown core of ice. The first risk-modeling scenarios have now been created to inform local communities and provide mitigations on the moraine to reduce the risk of collapse.

Here is a video of their difficult research environment above 5,000 meters (~16,400 feet):

As climates warm and weather patterns change across the Himalayas, the Andes, and the Rockies studies such as these are becoming critical.



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