There appears to be a polyna in the Laptev at 120E 81N. There is a large crater at the end of the Gakkel Ridge at those coordinates as well. Is there a connection?
Does the Gakkel Ridge crater have a name? Do we have a good map that would show named features like that?
I can find reports of Volcanoes far to the northwest along the Gakkel Ridge; did the American research expeditions make it out to the end of the ridge?
In the Melting Season thread, Rathbone mentions that upwelling tends to occur over ridges. Is the Gakkel Ridge Crater a known upwelling location?
[And is there a way to tag a forum thread to notify me when it gets updated?]