The Vrije Universit eit, Faculty of Earth Sciences, participates in the EC-funded TUNDRA-project and is studying fluvial processes in the Russian arctic Usa basin. In
the summers of 1998 and 1999 fieldwork was conducted, and morphological and sedimentological data were collected, from field sites across the catchment, from the taiga to the treeless tundra, from the Ural Mountains to the tundra-lowlands. In each of these sites present and past fluvial processes of erosion, deposition and reworking were reconstructed by means of morphological mapping and sedimentological analysis. Extrapolation of these data into a larger area will be done by using satellite images, topographical maps and maps such as soil maps, vegetation maps and permafrost maps that will be provided by other members of the TUNDRA-project. For more information, contact firstname.lastname@example.org.
This research is carried out in close cooperation with the Utrecht University, Department of Physical Geography, which studies the hydrological characteristics of the Usa River. A model is under construction, using data collected during the field work, which will describe present discharges and future changes in the hydrological regime under climate changes. The model uses monthly temperature and precipitation values and data from other partners in the TUNDRA-project, such as vegetation cover, topography and permafrost conditions. More information from s.vanderlinden@
In a study of Tertiary Sirius Group diamictites from different localities in South Victoria Land, Antarctic, attention is paid to periglacial overprinting of the glacial structure of the sediments. This is done by checking thin sections for well-known periglacial microstructures. During studies of glacial sediments emerging from underneath the glacier Sléttjökull, Iceland, it was found that permafrost exists underneath the snout. Sediments remain frozen for up to four years and so should be classified as permafrost. Freezing is caused by heat loss in winter from the thin glacier snout. Studies are being conducted together with J. Krüger, Institute of Geography, University of Copenhagen. More information on these two last projects from : J. van der Meer (j.j.m.meer @frw.uva.nl)
Jef Vandenberghe (email@example.com)