Antarctica’s glacial border migrates for miles with the tide
*Embargoed until 07:00 BST / 08:00 CEST, 26 September 2023*
The grounding line of the southern Ronne Ice Shelf in Antarctica can shift up to 15 km (six miles) with changing tides, new analysis shows. The research, published today in The Cryosphere, examines the key region where land-based Antarctic ice spills over into the surrounding ocean. Observing and understanding the dynamics of this region can help scientists predict Antarctica’s response to climate change, and so how much global sea levels will rise.
“We typically think of ice sheet change as being very slow, ...



