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Two modes of appearance of the Odden Ice Tongue in the Greenland Sea
Author(s) -
Wadhams Peter,
Comiso Josefino C.
Publication year - 1999
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl900502
Subject(s) - meltwater , ice tongue , geology , sea ice , arctic ice pack , antarctic sea ice , current (fluid) , climatology , oceanography , fast ice , atmospheric sciences , glacier , geomorphology
The Odden ice tongue of the Greenland Sea normally forms locally in winter as frazil‐pancake ice allowing for high positive salt fluxes during freezing that leads to open ocean convection. We report that another type of Odden can develop usually late in the season and is composed of old ice advected through the East Greenland Current and by the Jan Mayen Current. This type causes the introduction of more meltwater that stabilizes the water column, enhances productivity, and affects the carbon cycle in the region. The history of Oddens is reviewed and our results indicate that from 1978 through 1997, the first type occurred almost every year except in 1984, 1994, and 1995, while the second type has been observed to occur in 1987 and 1996.