In 1968, an aircraft flew over the Larsen B ice shelf in Antarctica. More than six decades later, photos taken on that flight have been used to create a 3D model of the region's melting glaciers.
Australian researchers have chronicled the impact of climate change on Antarctic glaciers by creating a 3D model of how they looked more than six decades ago.
"The information that these images contain about such a remote and often inaccessible location is priceless," University of Wollongong PhD candidate Ryan North said. Before: The Larsen B ice shelf on January 31, 2002.. . After: The Larsen B ice shelf on February 23, 2002.. .Antarctica's icy pulse "After constructing an accurate 3D model of the landscape using more than 850 photos, I found the glaciers were essentially unchanged between 1968 and 2001, just before the collapse occurred," Mr North said.
While it might sound insignificant, he said the trend of warming temperatures, particularly in the Antarctic Peninsula, was cause for concern."And when you put that into scale, that is quite scary, because these things will keep happening in one way or another as climate change continues."Mr North's 3D model was developed using photogrammetry, which harnesses powerful software to stitch hundreds of 2D photos into a volumetric representation of a subject matter.
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