The Danish-Swedish expedition LOMROG III will take place in the Arctic Ocean north of Greenland 31 July–14 September 2012. The expedition will be carried out by the Danish Continental Shelf Project, in cooperation with the Swedish Polar Research Secretariat and the Swedish Maritime Administration. LOMROG III is a follow-up to the previous Danish-Swedish LOMROG expeditions that took place in 2007 and 2009. The Swedish icebreaker Oden will once again serve as the research platform.

The task of the Continental Shelf Project is to acquire the necessary data in order to document an extension of the continental shelf beyond 200 nautical miles in accordance with article 76 of the UN Convention of the Law of the Sea (UNCLOS). During the expedition bathymetric data will be acquired using Oden's advanced multibeam echosounder, as well as collection of seismic and gravimetric data.

Danish scientists in biology, oceanography and marine microbiology will also participate in the expedition.

Områden som ska utforskas under LOMROG III
The white ellipses marks the areas to be examined during LOMROG III. Illustration: GEUS

Research leader: Christian Marcussen, GEUS

Read more about the Continental Shelf Project

Swedish research projects

Three Swedish research projects in paleoceanography and marine ecology will also participate in LOMROG III:

PAWS: Palaeoceanography of the Arctic – Water masses, Sea ice, and sediments

Researchers from Stockholm University are going to study the governing processes and feedback mechanisms of the sea ice and deep water circulation in the Arctic Ocean. Several new methods will be used to reconstruct how Arctic sea ice extent and circulation patterns have varied since the latest warm period around 125,000 years ago.

Research leader: Richard Gyllencreutz, Stockholm University

The researchers from Stockholm University are blogging from the expedition

Marine diazotrophic diversity in the polar oceans and its contribution to global nitrogen cycling

Researchers from Stockholm University will collect water samples to analyse and measure nitrogen fixation in hypersaline brine, seawater, and melting ponds on ice and snow. Marine diazotrophs (nitrogen-fixing bacteria and cyanobacteria) are of documented significance in global nitrogen cycling. However, their significance in polar regions are largely unknown, despite the fact that nitrogen fixation is a major source of nitrogen input in polar terrestrial and freshwater systems.

Research leader: Pauline Snoeijs, Stockholm University

The role of zooplankton in Arctic food webs

Researchers from the University of Gothenburg are going to study the function of zooplankton in the pelagic food web, and their role in structuring the pelagic community. A thorough understanding of the dynamics of polar food webs is a key to accurate predictions of the effects of global warming on pelagic communities.

Research leader: Kajsa Tönnesson, University of Gothenburg


20 July: Icebreaker Oden departs Helsingborg for transit to Longyearbyen

30 July: Oden arrives in Longyearbyen

31 July: The expeditionen begins

14 September: The expedition ends

The expedition will begin and end in Longyearbyen, Svalbard.

Editor: Webmaster Last updated: 2012-10-29

Expedition reports – Swedish Polar Research Secretariat

Close to the North Pole and far away from Stockholm

11/8 2012

For a long time it was highly uncertain if this Arctic expedition would take place and if so if we were selected to come along. However, on the 17th of February we got to know that we could join the expedition. It was impossible to say no, such a chance is seldom available.