Jakobshavn Isbræ area during the climatic optimum

The GGU glaciological investigations related to hydropower planning north (Pakitsoq) and south (Tiningnilik) of Jakobshavn Isbræ have, together with finds and dating of marine subfossils, furnished information on the history of the ice margin changes during and since the Holocene climatic optimum. The paper attempts to reconstruct the ice margin conditions and surroundings during the Holocene climatic optimum on the basis of this information.