Borehole optical televiewing shows deep mixed-mode crevasses at Store Glacier

RESPONDER borehole observations at Store Glacier have identified deep mixed-mode crevasses that penetrate far deeper into the ice than model predictions. For decades, crevasse depths have been estimated by calculating opening and closure rates theoretically. These simple calculations predicted crevasses would penetrate only some tens of metres below the surface of a glacier, but the[…]