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You are browsing the archive for South Georgia fjord expansion Archives - AGU Blogosphere.

13 May 2021

Herz Glacier, South Georgia Loses 25% of its Length 1989-2021

Landsat images from 1989-2021 of Herz Glacier.  Red arrow is 1989 terminus location, yellow arrows the 2021 terminus location. I=Iris Bay. Herz Glacier is on the southeast coast of South Georgia Island, and is adjacent to the Twitcher Glacier. The terminus change of this tidewater glacier ending in Iris Bay was completed by the British Antarctic Survey for the 1960-2011 period, see map below (Gordon et al, 2008). This map …

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24 April 2019

Twitcher Glacier, South Georgia, 40% of Length Lost 1989-2019

Twitcher Glacier in Landsat images from 1989 and 2019.  The red arrow is the 1989 terminus and yellow arrow is the 2019 terminus.  1, 2 and 3 are tributaries. Twitcher Glacier is the next glacier south of Herz Glacier on the east coast of South Georgia. Until 1989 the glacier ended at the tip of a peninsula, the ensuing retreat has led to the opening of a new fjord.  Twitcher …

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