Graphics Library >> Global Outlook for Ice and Snow >> Regional changes in Arctic a ...

Regional changes in Arctic and Antarctic sea ice

Regional changes in Arctic and Antarctic sea ice

File type Download Size Language
.png .png Download 169 kb -
.jpg .jpg Download 148 kb -
.pdf .pdf Download 774 kb -
Uploaded 21 Feb 2012 by GRID-Arendal
Year: 2007 Author: Hugo Ahlenius, UNEP/GRID-Arendal
Description:
There are major regional differences for the Arctic sea ice, with the strongest decline in ice extent observed for the Greenland Sea (10.6 per cent per decade). The smallest decreases of annual mean sea ice extent were found in the Arctic Ocean, the Canadian Archipelago and the Gulf of St. Lawrence. In the marginal Arctic seas off Siberia (the Kara, Laptev, East Siberian and Chukchi Seas) a slight negative, but not significant, trend in ice extent was observed between 1900 and 20008. In contrast to the Arctic, there are signs of a slight increase in the extent of annual mean sea ice over the period 1979–2005 (+1.2 per cent per decade) based on the NASA Team retrieval algorithm. The IPCC concluded that this overall increase was not significant and that there are no consistent trends during the period of satellite observations. There are, however, indications that sea ice may be increasing more at the period of minimum coverage (March) than at the period of maximum sea ice extent in ...
Downloads: 269     Rating: 4
  • Major glacier hazard locations
  • Projected reduction in snow 2080-2100
  • Ice sheets, schematic illustration for Greenland and Antarctica
  • Mean snow-cover extent in the Northern Hemisphere 1966-2006
  • Projected winter temperature changes in the Arctic
  • Glacier changes on Nevado de Santa Isabel, Colombia
  • Sea ice concentration change over the 21st century as projected by climate models
  • Ice avalanches of the Nevados Huascarán in Peru