Submarine melting of the 1985 Jakobshavn Isbræ floating tongue and the triggering of the current retreat

• Published in: Journal of Geophysical Research: Earth Surface Vol. 116; no. F1; pp. np - n/a
• Main Authors: Motyka, Roman J., Truffer, Martin, Fahnestock, Mark, Mortensen, John, Rysgaard, Søren, Howat, Ian
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01.03.2011
• Subjects: Jakobshavn Isbræ; outlet glaciers; submarine melting; ANW, Greenland, Vestgroenland, Jakobshavns Isbrae; AN, Greenland

Photogrammetric reanalysis of 1985 aerial photos has revealed substantial submarine melting of the floating ice tongue of Jakobshavn Isbræ, west Greenland. The thickness of the floating tongue determined from hydrostatic equilibrium tapers from ∼940 m near the grounding zone to ∼600 m near the termi...