Contact Admin. Posted by Mauri Pelto. Glacier change revealed in Landsat images from and The red arrow indicates terminus location, the yellow arrow indicates terminus location and the purple arrow indicates upglacier thinning.
Hooker Lake which the glacier ends in began to from around Kirkbride, In the lake was m long Figure From to the lake expanded to m, with the retreat enhanced by calving. The m retreat was faster during the earlier part of this period Robertson et al. Map of the region in indicating the lack of proglacial lakes at the end of Mueller , Hooker and Tasman Glacier.
The peak lake depth is over m, with the terminus moving into shallow water after leading to declining retreat rates Robertson et al Based on the nearly stagnant nature of the lower glacier and the diminished ice flow from above indicated by debris cover expansion at the purple arrow, it seems likely the retreat will continue well beyond the end of the lake but at a diminished rate.
Hooker Glacier drains into Lake Pukaki,a along with Murchison, Mueller and Tasman Glacier, where water level has been raised 9 m for hydropower purposes. Benmore, Aviemore and Waitaki with a combined output of MW. Reductions in glacier area in the watershed will lead to reduced summer runoff into the Lake Pukaki system see image below.
Comparison of Hooker Glacier terminus area in red arrow and yellow arrow in Google Earth. Blue arrow indicates icebergs in The geographical setting and shape of Hooker lake looks like Imja lake and its surrounding in Everest region of Nepal, Which is also changing its area, volume with very high rate. There was not lake before s, and now it is more than 2 km long LAKE with 75 million cubic meter of water.
