Abstract
Niels Nielsen: Geomorphology of a Degrading Arctic Delta, Sermilik, South-East Greenland. Geografisk Tiddskrift, Danish Journal of Geography 94:xx–xx. Copenhagen, Dec. 1994. An arctic delta at the Sermilik Station (65°41′ N., 37°49′ W.), Ammassalik Island, S-E Greenland has been studied including its geomorphology, sediments, dynamics and evolution. The fluvial system is fed by a retreating glacier (30 km2) and compraises an alluvial valley (1.6 km long) and a lobate delta (0.8 km2). The river discharges into a polar sea, which is ice-bound for about 7–8 months a year and with abundant icebergs during the summer. Albeit exposed to the very stormy Denmark Strait, low wave energy conditions prevail, because of the presence of floating ice. Yet major wave-built coastal structures: barriers, tombolos and swash bars, strongly influenced by macro tidal conditions, are superimposed on the delta flat. Recent investigations indicate that the alluvial valley now acts as a sink for glacial discharge of coarse clasti...
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