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April 7, 2021
Bonar Glacier Retreat, New Zealand
Bonar Glacier in 1992 and 2021 Landsat image. Red arrow is the 1992 reconstituted terminus location, yellow arrow the 2021 terminus location and purple dots the snowline. Bonar Glacier is on the west flank of Mount Aspiring flowing north from Mount before turning sharply west and descending towards a lake and draining into the Waipara River. The NIWA glacier monitoring program noted that 30 per cent of New Zealand’s ice that …