Summary of Abstract Submission

Abstract Submission No. IO50-07-0073PresentationOral

INDIAN OCEAN SEA LEVEL RISE AND THE POTENTIAL IMPACT FROM THE GREENLAND ICE SHEET

Ola M.Johannessen*1

1 Nansen Enviromental and Remote Sensing Center, Norway

ABSTRACT :

The Global Sea Level rise is at present ca 3 mm per year caused primarly by the warming of the oceans and the melting of glaciers and ice sheets. The sea level rise allng the Indian Ocean coasts has increaced since 1960 up to 2 mm per year except for the decline at Zanzibar(Han et al.2010,2014). However,in the future the sea level rise in the Indian Ocean will potentially be more influenced by the projected melting of the ice sheets and glaciers in particular the Greenland Ice Sheet.Over the last few years the melting of the Greenland Ice Sheet has contributed to the equal of 0,7 mm per year increace of the global sea level rise of the total of 3 mm per year,but the Greenland Ice Sheet contribution will potentially be larger in the future. Fron Earth System global coupled modells(IPCC) we have as an exampel estimated that at the end of this Centry,the sea level rise along the coast of Kerela in the South Western part of India will increace with ca 0,5 m using the RCP 4,5 scenario where the ocean warming is projected to acount for 42%,melting of ice sheets and glaciers 35% and isostatic adjustments -4%.Using the RCP 8,5 scenario the sea Level rise is only slightly higher,0,6 m.