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December 8, 2011

Gunn Glacier Retreat, lake expansion, New Zealand

Gunn Glacier is a small cirque glacier that lies beneath Mount Gunn. A lake has formed recently and is continuing to expand. The 2000 based map of the area published in , does not show a lake, but does at the terminus indicate a small water body surrounded by snow.  By 2015 the lake is shown in New Zealand Topo replacing much of the glacier area.  . Topographic Map from 2000 …


February 22, 2011

Murchison Glacier Retreat Increasing

Murchison Glacier drains southeast from the Mount Cook region, one valley east of Tasman Glacier. The end of the glacier terminates in a lake that is rapidly developing as the glacier retreats. This retreat will become rapid as 2010 imagery indicates other proglacial lakes have now developed 3.5 km above the actual terminus. These lakes are at a higher elevation and may not endure but do help increase ablation, and …


May 2, 2010

Donne Glacier Retreat New Zealand

Donne Glacier from 2003-2012 in Google Earth images.  Red arrow is the 2003 terminus and yellow arrow the 2012 terminus. Donne Glacier descends the spectacular east face of Mount Tutoka in southwest New Zealand. This glacier has been undergoing rapid retreat this decade creating a new alpine lake. The National Institute of Water & Atmospheric Research (NIWA) conducts an annual survey of the snowline of New Zealand glaciers. In order …