The Cryosphere
The Cryosphere
TC
Articles | Volume 20, issue 7
Articles | Volume 20, issue 7
https://doi.org/10.5194/tc-20-4133-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-4133-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 7
Research article
 | 
28 Jul 2026
Research article |  | 28 Jul 2026

Svalbard glacier calving front changes from the 1930s to the 1970s from archived satellite and aerial images

Loris Danjou, Eero Rinne, and Erik Schytt Mannerfelt

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Short summary
We retrieved front locations for 171 Svalbard tidewater glaciers in the 1960s and 1970s, from Landsat images and – for the first time in this region – declassified intelligence satellite photographs. We compared our results to aerial photographs from the 1930s and calculated that these glaciers retreated by about 1 km between 1936 and 1978. We also discovered one undocumented glacier surge (a rapid front advance), precised the time frames of two others, and documented two other glacier advances.
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