A changing Arctic seasonal ice zone: Observations from 1870–2003 and possible oceanographic consequences
- 29 January 2008
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 35 (2)
Abstract
Changes in the extent of seasonal ice were investigated using historical and satellite observations for the period 1870–2003. The seasonal ice zone (SIZ) has been gradually expanding since 1870, with a marked acceleration over the past three decades, and has migrated north to encompass all peripheral Arctic seas. The expansion of the SIZ may be increasing the salinity of the upper Arctic Ocean, consistent with recent observations. The migration of the SIZ over continental shelves may also be enhancing the formation rate and salinity of Arctic deep waters, which are subsequently advected to the convective region of the Greenland‐Iceland‐Norwegian Sea, thereby influencing the formation of North Atlantic deep waters and related global thermohaline circulation.Keywords
This publication has 23 references indexed in Scilit:
- Natural variability of Arctic sea ice over the HoloceneEos, 2006
- 30‐Year satellite record reveals contrasting Arctic and Antarctic decadal sea ice variabilityGeophysical Research Letters, 2003
- NAO influence on sea ice extent in the Eurasian coastal regionGeophysical Research Letters, 2002
- A rapidly declining perennial sea ice cover in the ArcticGeophysical Research Letters, 2002
- The Role of Ice–Ocean Interactions in the Variability of the North Atlantic Thermohaline CirculationJournal of Climate, 2001
- Some thoughts on the freezing and melting of sea ice and their effects on the oceanOcean Modelling, 2001
- Sea Ice Growth, Melt, and Modeling: A Survey2000
- Saline outflow from the Arctic Ocean: Its contribution to the deep waters of the Greenland, Norwegian, and Iceland seasJournal of Geophysical Research: Oceans, 1991
- The role of sea ice and other fresh water in the Arctic circulationJournal of Geophysical Research: Oceans, 1989
- Thermohaline circulation in the Arctic Mediterranean SeasJournal of Geophysical Research: Oceans, 1985