Crack in the Pine Island Glacier

Référence de la vidéo 11933967
Flying through a 3D model of a large crack in the Pine Island Glacier, Antarctica. The Pine Island Glacier is a fast-moving ice stream that extends out over the sea as an ice shelf. As the glacier extends, the portion over the sea becomes unstable, eventually breaking apart into large icebergs in a process called calving. This model is based on the first ever airborne laser altimeter measurements of a major calving event. The flight in this animation covers around 30 kilometres, although the crack is longer. The crack is some 250 metres wide at its widest, averaging 90 metres wide, and is 50-60 metres deep, with the bottom of the crack at roughly sea level. The ice shelf itself is some 500 metres deep, with only 10% of it above sea level. When the crack finally breaks, it will release an iceberg some 900 square kilometres in area. Airborne mapping data collected on 26th October 2011 by NASA's Operation IceBridge.
Licence : Droits gérés
Crédit : Science Photo Library / NASA / OPERATION ICEBRIDGE
Model Release : Non requis
Property release : Non requis
Durée : 33 Secondes
Aspect ratio : 16/9
Restrictions : -

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