The second priority of the cruise was to acquire seismic data in the Amundsen and Makarov Basins on both sides of the Lomonosov Ridge. In order to work successfully in the harsh conditions, the seismic equipment had to be modified.
The primary purpose of the oceanographic work during LOMROG II was thus to supply representative, near real time vertical profiles of sound velocity derived from CTD measurements of temperature, salinity and pressure as a function of depth.
This project seeks to establish how large a role microbial respiration plays in determining the concentration of CO2 within both first-year and multi-year sea ice, and thus influencing the exchange of CO2 between sea ice and the atmosphere. Ice cores were retrieved at a total of 14 ice stations.
The overall goal of the project is to compare and establish a baseline for the genetic repertoire of microbial communities of various polar region environments: The deepest and coldest parts of the oceans, snow samples and sea ice cores.
On this cruise the aim was to obtain high resolution sediment records from the Lomonosov Ridge in the central Arctic that can reveal something about the deep water circulation in the Arctic basins, the sea ice history and the connection to the huge ice sheets that developed on the American and Eurasian landmasses surrounding the Arctic Ocean.