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MARINEGEOLOGY & GLACIOLOGY

Geological Survey of Denmark and Greenland (GEUS) 		GEUS logo - link to main page

Long term changes in the Arctic Ocean sea ice cover (Green ice)

     

For further information on the project contact:

  • Naja Mikkelsen - nm@geus.dk
    • As part of a number of scientific research projects including the' Long Term project'  and the multidisciplinary EU project 'Greenland Arctic Shelf Ice and Climate Experiment' sediment coring and seismic reflection measurements has been  undertaken in the Wandel Sea Basin and in a hitherto unexplored part of the Arctic Ocean, the marginal Lomonosov Ridge off northern Greenland in the Lincoln Sea. The aim of these projects is to study the structure and dynamics of the sea ice cover and attempt to relate these to a longer-term record of climate variability retrieved from sediment cores. The main field work was carried out in 2004, 2006 and 2009 from ice camps established by aircrafts on drifting sea ice. Seismic data and sediment cores were collected from the drifting ice stations and important data retrieved from this normally inaccessible area. Preliminary investigations have provided surprising and unexpected information on previous variations in the inflow of more saline and warmer Atlantic water into the survey areas creating almost ice free conditions in the survey area. Scientific investigations of changes in the past ice cover based on sediment cores continues and is part of an IODP  initiative  to drill the Morris Jeusp Rise north of Greenland .

            		 

    Edited by:
    Jacob Geltzer, GEUS - jgel@geus.dk

    [Til top]   Sidst ændret: 28. november 2011 © De Nationale Geologiske Undersøgelser for Danmark og Grønland - GEUS
    Øster Voldgade 10, 1350 København K - Tlf.: 38142000 - Fax: 38142050 - E-post: geus@geus.dk
    Siden vedligeholdes af: Jacob Geltzer


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