File:Columbia glacier, Alaska (Copernicus).jpg

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Captions

Captions

This image, acquired by one of the Copernicus Sentinel-2 satellites on 26 September 2021, shows the Columbia Glacier in Alaska.

Summary[edit]

Description
English: This image, acquired by one of the Copernicus Sentinel-2 satellites on 26 September 2021, shows the Columbia Glacier in Alaska. The glacier is one of the fastest moving in the world and has been closely monitored since the 1980s when a massive glacial retreat was first observed. Since then, the glacier has lost more than 50% of its total thickness and volume, and in 2011 split into two separate glaciers due to accelerated calving and ice loss. The retreat of the glacier contributes to rising sea levels, mostly through iceberg calving. Whilst tidewater effects are a major driver of the ice loss, the rapid retreat of the Columbia Glacier is also attributable to long-term climate-related thinning. Multispectral data provided by the Copernicus Sentinel missions are a powerful tool for studying the effects of climate change around the world.
Date Taken on 26 September 2021
Source Columbia glacier, Alaska
Author European Union, Copernicus Sentinel-2 imagery

Licensing[edit]

© This image contains data from a satellite in the Copernicus Programme, such as Sentinel-1, Sentinel-2 or Sentinel-3. Attribution is required when using this image.
Attribution: Contains modified Copernicus Sentinel data 2021

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current18:57, 8 September 2023Thumbnail for version as of 18:57, 8 September 20233,800 × 2,540 (2.39 MB)OptimusPrimeBot (talk | contribs)#Spacemedia - Upload of https://www.copernicus.eu/system/files/2021-10/image_day/20211009_ColumbiaGlacier.jpg via Commons:Spacemedia

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