Seismic data acquisition
31 July 2012 - 14 September 2012
Overview map showing the main part of the bathymetric data acquired during LOMROG III. Numbers indicate the four profiles covering the flank of the Lomonosov Ridge facing the Amundsen Basin. Data acquisition (profiles 1 and 2) was focused on the data gap between data acquired during LOMROG I, spot soundings during LOMBAG 2009 and data acquired during LOMROG II.
Acquisition of seismic data in the Amundsen Basin and on the Eastern flanks of the Lomonosov Ridge was the second priority of the LOMROG III cruise. Harsh environmental conditions in the Arctic have been a crucial consideration when designing the seismic equipment and modifying the setup. These modifications were based on previous experience with seismic data acquisition in ice-filled waters as well as on the two previous LOMROG expeditions.
During the LOMROG III cruise, a total of 498 km of seismic data were acquired. Furthermore, 63 sonobuoys were deployed of which 59 were transmitting data back to the ship.
The seismic data acquired during the three LOMROG cruises will form an important part of the documentation of a Kingdom of Denmark submission regarding an extended continental shelf in the area north of Greenland, due at the end of 2014.