Columbia Glacier retreat from 1986 to 2014, satellite images

Numéro d’image : 12949153
Columbia Glacier retreat from 1986 to 2014, satellite images
Columbia Glacier retreat from 1986 to 2014, satellite images. The Columbia Glacier in Alaska, USA, descends from the Chugach Mountains into Prince William Sound. In 1986 (top) the glacier (light blue) extended outwards to Heather Island. The image at bottom is from 2014, showing the extent of the glacier's retreat over the following 28 years. It is thought that the Main Branch of the glacier (upper right) is unstable and further melting may take place. The retreat of glaciers worldwide has been linked to climate change. These images were obtained with the Thematic Mapper (TM) sensor on the Landsat 5 satellite (1986) and the Operational Land Imager (OLI) on the Landsat 8 satellite (2014).
Licence : Droits gérés
Crédit: Science Photo Library / NASA / US Geological Survey Earth Observatory
Taille de l’image : 3947 px × 4440 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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