Jeff Welker - UArctic Chair University of Oulu
Jeff Welker has been studying Arctic plant & ecosystem ecology, biogeochemistry and biosphere-atmosphere interactions since his research activities at NyAlyesund, Svalbard and Abisko, Sweden started in 1990. His research program focuses on four themes: a) tundra plant and ecosystem structure and function now and in the future using the ITEX (International Tundra Experiment) program; b) the Arctic Water Isotope Cycle and sea ice controls on shifting patterns, sources and distribution of precipitation; c) terrestrial and marine food web processes focused on diets and space-use of wolves, polar bears, brown bears, caribou and reindeer and d) herbivore and climate effects on greenhouse gas emissions, sources and ages. Dr. Welker serves on the US Arctic Icebreaker Coordination Committee (AICC), the NSF Office of Polar Programs Advisory Committee and as the Arctic Research Advisory to the Chancellor at the University of Alaska Anchorage. He is convening a UArctic Congress 2018 session on caribou-reindeer-cultural practices and is leading a new project titled: “Pan Arctic Water Isotope Network” which was granted INTERACT remote access to research stations. The project involves colleagues from Iceland, Denmark, Greenland, Czech Republic, Poland, USA, Finland, UK, Canada and Norway.


Professor Jeffrey Welker from the University of Oulu and the University of Alaska Anchorage alongside with 30 co-authors from UArctic affiliated institutions and research groups just published a paper on the large loss of CO2 in winter observed across the northern permafrost region.

UArctic Research Chair, Professor Jeff Welker (University of Oulu & University of Alaska Anchorage) and colleagues from across the Arctic will be contributing to this monumental effort with their studies of the Arctic Water Isotope Cycle. 

Universities around the Arctic celebrate the beginning of each academic year as a time of joy, anticipation, reflection and inspiration. This year, the University of Oulu had a series of speakers and presentations as part of the ceremony, the full program can be found here. The event started with a welcoming by Rector Niinimä...

According to new research of the UArctic Chair Jeffrey Welker and co-authors, the High Arctic has the most extreme conditions of the Northern Hemisphere, with areas such as Svalbard, having total darkness, “Polar Night” lasting for over 60 days each winter, reaching temperatures as low as -40C/-40F.  These extreme winter cond...

The UArctic Chair Jeff Welker's food web program on Polar Bears is featured in Arctic Today, sharing that high PFAS levels found in Barents Sea polar bears. This collaborative program lead by Jeff's Norwegian colleagues has been underway for many years and it reflects the breadth of the Chairship & research program.  In...

UArctic Chair Dr. Jeff Welker and colleagues in Finland and across the Arctic have received Academy of Finland (AoF) funding and EU INTERACT support to study the changing Arctic water cycle. 

As part of his UArctic Chairship, Professor Jeff Welker has completed establishing his first core set of collaborative, interdisciplinary research projects in Finland at the University of Oulu. This article will explain the first of two projects.

Professor Jeffrey Welker from the University of Alaska Anchorage was recently appointed as the first UArctic Chair, with the position hosted by the University of Oulu. In this introduction he shares his concerns regarding the future of the Arctic, and what his priorities are in his new role.