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Personal profile

Description of research and teaching

I am a palaeoecologist, interested in the reconstruction of past climate and environments using both marine and freshwater sediment proxy records. My expertise include marine, brackish and freshwater diatom taxonomy and ecology, and sediment biomarkers (especially IP25), with a special interest is proxy evaluation and development. I have both led and been involved in several international projects including research topics such as the recent eutrophication history of the Baltic Sea (MOLTEN, DETECT, DEFINE), Late-Pleniglacial climate change in the southern Alps (Academy of Finland Postdoctoral Fellowship to work at the Mondsee Institute for Limnology, Austria), Arctic sea ice and ocean variability around Greenland and in the Labrador Sea (incl. Marie Curie Individual Fellowship CLIMICE, partly based at LOCEAN, Paris), and the effects of groundwater phosphorus concentrations on lake trophy. My recent interest in Arctic environmental change began during the 8 years (2007-2015) based at the Geological Survey of Denmark and Greenland (GEUS).

External positions

Adjunct Senior Researcher, Geological Survey of Denmark and Greenland, Denmark

International and National Collaboration Publications and projects within past five years.

Publications 2002 2019

The biogeography and ecology of common diatom species in the northern North Atlantic, and their implications for paleoceanographic reconstructions

Oksman, M., Juggins, S., Miettinen, A., Witkowski, A. & Weckström, K., Apr 2019, In : Marine Micropaleontology. 148, p. 1-28 28 p.

Research output: Contribution to journalArticleScientificpeer-review

Linking the Modern Distribution of Biogenic Proxies in High Arctic Greenland Shelf Sediments to Sea Ice, Primary Production, and Arctic-Atlantic Inflow

Limoges, A., Ribeiro, S., Weckström, K., Heikkila, M., Zamelczyk, K., Andersen, T. J., Tallberg, P., Masse, G., Rysgaard, S., Norgaard-Pedersen, N. & Seidenkrantz, M-S., Mar 2018, In : Journal of Geophysical Research : Biogeosciences. 123, 3, p. 760-786 27 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Spring Succession and Vertical Export of Diatoms and IP25 in a Seasonally Ice-Covered High Arctic Fjord

Limoges, A., Masse, G., Weckström, K., Poulin, M., Ellegaard, M., Heikkilä, M., Geilfus, N-X., Sejr, M. K., Rysgaard, S. & Ribeiro, S., 13 Dec 2018, In : Frontiers in Earth Science. 6, 15 p., 226.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Diatom-based reconstructions of climate and ocean conditions from Svalbard and Baffin Bay since the Last Glacial Maximum

Oksman, M., 15 Dec 2017, Helsinki: University of Helsinki. 108 p.

Research output: ThesisDoctoral ThesisCollection of Articles

Open Access

Late Holocene shift towards enhanced oceanic variability in a high-Arctic Svalbard fjord (79°N) at 2 500 cal. yr BP

Oksman, M., Weckström, K., Miettinen, A. I., Ojala, A. E. K. & Salonen, V-P., 4 Oct 2017, In : Arktos. 3, 11 p., 4.

Research output: Contribution to journalArticleScientificpeer-review

Projects 2015 2021