THE DEVELOPMENT OF THE ODDEN ICE TONGUE IN THE GREENLAND SEA DURING WINTER 1993 FROM REMOTE-SENSING AND FIELD OBSERVATIONS

The Odden ice tongue in the central Greenland Sea, believed to be asso ciated with midgyre convection, developed prominently during the: wint er of 1993 (January-April). During this period it was studied by a suc cession of cruises which formed part of the European Subpolar Ocean Pr ogramme and which included direct sampling and measurement of the fraz il and pancake ice which constituted the material of the ice tongue as well as studies of the ocean structure. Passive microwave imagery was used to determine the evolution of Odden through the winter and, when combined with ERS 1 synthetic aperture radar studies and the field da ta, yielded estimates of ice extent and thickness through the winter. From these studies it was possible to estimate the salt flux into the ocean originating from brine release from sea ice during the growth ph ases of Odden.