Between 1990 and 1994 several Dutch research groups cooperated in the Greenland Ice Margin Experiment (GIMEX). This program concentrated on the mass balance of the west Greenland ice sheet and its sensitivity to climatic change, including the Holocene deglaciation history. In the latter part of the program attention was paid to permafrost and its effect on glacial dynamics in the frontal zone of the ice sheet, e.g. on ice-cored moraine formation. In order to study present-day permafrost conditions, temperature data spanning 15 years from a 15-m-deep permafrost profile at Kangerlussuaq airport were analyzed with Danish colleagues. They have been compared with shallow temperature profiles in the study area. In 1993 and 1994 further field studies concentrated on permafrost thickness and distribution, frost mound development (both seasonal and multi-annual), and ice wedge polygons.
The Geological Survey of The Netherlands and the three Departments of Physical Geography of the universities of Amsterdam and Utrecht regularly study periglacial and permafrost-related phenomena as part of a mapping program and other investigations in Pleistocene sequences and present-day environments, not just in the Netherlands but also in the Alps and Antarctica.
Submitted by J.J.M. van der Meer