‘Doomsday Glacier’ Isn’t as Close to Collapse as We Thought
https://www.scientificamerican.com/article/antarcticas-doomsday-glacier-wont-collapse-in-worst-case-scenario/
by NeoconCry
‘Doomsday Glacier’ Isn’t as Close to Collapse as We Thought
https://www.scientificamerican.com/article/antarcticas-doomsday-glacier-wont-collapse-in-worst-case-scenario/
by NeoconCry
1 comment
I guess this [edit: paper by Mathieu Morlighem] was written before the paper [Widespread seawater intrusions beneath the grounded ice of Thwaites Glacier, West Antarctica](https://www.pnas.org/doi/full/10.1073/pnas.2404766121) Eric Rignot el al, because it does not seem to reference this paper.
Abstract:
“We present evidence for seawater intrusions occurring at tidal frequencies over many kilometers beneath the grounded ice of Thwaites Glacier, West Antarctica, a major contributor to sea level rise. The results call into question the traditional approach of modeling a fixed, abrupt transition from grounded ice to ice floating in the ocean with no ice melt at the transition boundary. We delineate a tidally controlled grounding zone, 2 to 6 km in length, and additionally irregular seawater intrusions extending another 6 km inland at spring tide. The rushing of seawater beneath grounded ice over considerable distances makes the glacier more vulnerable to melting from a warmer ocean than anticipated, which in turn will increase projections of ice mass loss.”