Palsas as permafrost phenomena were generally known in northern Finland and Sweden since the beginning of the 20th century. Seppälä did detailed palsa studies especially in the 1980s, and became a foremost expert on palsas.[5][6][7][8][9][10]
He was also the first Scandinavian geomorphologist initiating permafrost research in the mountains of northern Finland in the year 1985, together with German colleagues.[11][12] Many other scientists followed this research approach of mapping and modelling mountain permafrost in Scandinavia.[13]
References
^Death notice. Helsingin Sanomat, 20 December 2020, p. C 17 (in Finnish).
^Seppälä, Matti (2004). Wind as Geomorphic Agent in Cold Climates (Frontmatter) (PDF). Cambridge University Press. ISBN 0 521 56406 9. Retrieved August 21, 2014.
^ a b"Matti Seppälä". University of Helsinki. October 29, 2013. Retrieved August 21, 2014.
^Ellonen, Leena, ed. (2008). Suomen professorit. Finlands professorer: 1640–2007. Helsinki: Professoriliitto. p. 664. ISBN 978-952-99281-1-8.
^"Professor Matti Seppälä". Durham University. Retrieved August 21, 2014.
^Seppälä, Matti (1979). "Recent palsa studies in Finland". Acta Universitatis Ouluensis. Ser. A (82): 81–87.
^Seppälä, Matti (1982). "An experimental study on the formation of palsas". Proceedings Fourth Canadian Permafrost Conference, Calgary: 36–42.
^Seppälä, Matti (1982). "Present-day periglacial phenomena in northern Finland". Biuletyn Peryglacjalny: 231–243.
^Seppälä, Matti (1983). "Seasonal thawing of palsas in Finnish Lapland". Permafrost: Fourth International Conference, Proceedings, Washington D.C.: 1127–1132.
^Seppälä, Matti (1986). "The origin of palsas". Geografiska Annaler. 86A: 141–147.
^King, Lorenz; SeppäIä, Matti (1987). "Permafrost thickness and distribution in Finnish Lapland - Results of geoelectrical soundings". Polarforschung. 57 (3): 127–147.
^King, Lorenz; SeppäIä, Matti (1988). "Permafrost sites in Finnish Lapland and their environment". Permafrost Fifth International Conference, Trondheim, Proceedings. 1: 183–188.
^Etzelmüller, Bernd, Hoelzle, Martin, Flo Heggem, Eva Solbjørg, Isaksen, Ketil, Mittaz, Cathrine, Mühll, Daniel Vonder, ødegård, Rune S., Haeberli, Wilfried, Sollid, Johan Ludvig: Mapping and modelling the occurrence and distribution of mountain permafrost. - Norsk Geografisk Tidsskrift / Norwegian Journal of Geography Vol. 55, 4, 186-194. 2010 [1]