Fourteen tidewater glaciers flow into Hornsund Fjord, on the southern tip of Spitsbergen, the largest island of the Svalbard Archipelago, located about 700 kilometers north of mainland Norway in the Arctic Ocean. During the past few decades, these glaciers have retreated substantially.
In 1984, four glaciers formed a single terminus at the eastern end of Hornsund: Storbreen, Hornbreen, Svalisbreen, and Mendelejevbreen. By 2010, the glaciers had retreated far enough to each have a separate terminus into the fjord.
The main driver of this glacial retreat is increasing average temperatures. The melt season in Svalbard grew two weeks longer between 1912 and 2010.
The near-infrared imaging from Landsat clearly shows changes to these glaciers. The long record from Landsat is especially crucial to tracking the changes and projecting what may happen to the glaciers in the near future.
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