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15 March 2020

Glacier Retreat Drives 400% Lake Expansion Southern Alps, New Zealand 1990-2020

Landsat images  from 1990 and 2020 of the Mueller (M), Hooker (H), Tasman (T) and Murchison (Mn) Glacier.  Red arrows indicate the 1990 terminus location, yellow arrows the 2020 terminus location and pink arrows the upglacier extent of debris cover in 1990. Glaciers of the Southern Alps of New Zealand have been losing ice volume since 1978, with an increasing rate in the last decade (Pelto, 2016).  Gjermundsen et al …


11 January 2016

Hooker Glacier Retreat, 1990-2015

Glacier change revealed in Landsat images from 1990 and 2015.  Mueller Glacier (M) and Hooker Glacier (H).  The red arrow indicates 1990 terminus location, the yellow arrow indicates 2015 terminus location and the purple arrow indicates upglacier thinning. Hooker Glacier parallels the Tasman Glacier one valley to the west draining south from Mount Hicks and Mount Cook.  Hooker Glacier is a low gradient which helps reduce its overall velocity and …