Tag: Ice

Arctic, topography and bathymetry
(See http://maps.grida.no/go/graphic/arctic-topography-and-bathymetry1 for an updated version of this map) The Arctic is extremely diverse in terms of landscapes, varying from pack and drift ice to rugged shores, flat co...
18 Dec 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected changes in Arctic pack ice (sea ice minimum extent)
The averages of the scenarios in the Arctic Climate Impact Assessment (ACIA) for the Arctic sea ice extent (the permanent ice) are presented in this map, with the successive decrease in the ice up to 2090. The projection...
18 Dec 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Larsen ice shelf, Antarctic peninsula
07 Oct 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
South America, southern ice fields
In Southern South America there are primarily three ice fields with major glaciers - the Northern and Southern Patagonian Icefield in the Andes, and then Cordillera Darwin in the very south. All of these are very vulnera...
17 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Antarctica, overview
Antarctic is the fifth largest continent of the world at 14 million square kilometres and is covered in a permanent continental ice. The ice is distributed in two major ice sheets, the East Antarctic and the West Antarct...
17 Mar 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Trends in the ice-breaking date in the Tornio river, Finland
The icebreaking date for the Tornio River in Finland has been recorded since 1693. With the increased greenhouse effect, impacts on the cryosphere are likely. One impact will be less ice on rivers and lakes. Freeze-up da...
14 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Arctic sea routes - Northern sea route and Northwest passage
Sea routes along the edges of the Arctic ocean, or rather along the coasts of Northern Canada and Russia, holds potential for decreasing the number of days in shipping goods from the Pacific to Atlantic coasts in Europe ...
13 Feb 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Change in permafrost temperature in Fairbanks (Alaska)
With a doubling of atmospheric CO2, it is likely that there will be increases in the thickness of the active layer permafrost and the disappearance of most of the ice-rich discontinous permafrost over a century-long time...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Scenarios of sea level rise, now - 2100
Using the IS92 emission scenarios, projected global mean sea level increases relative to 1990 were calculated up to 2100. Taking into account the ranges in the estimate of climate sensitivity and ice melt parameters, and...
01 Oct 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
World ocean thermohaline circulation
The global conveyor belt thermohaline circulation is driven primarily by the formation and sinking of deep water (from around 1500m to the Antarctic bottom water overlying the bottom of the ocean) in the Norwegian Sea. W...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Over the last 400,000 years the Earth's climate has been unstable, with very significant temperature changes, going from a warm climate to an ice age in as rapidly as a few decades. These rapid changes suggest that clima...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Trends in the ice-breaking date in the Tornio river, Finland
The icebreaking date for the Tornio River in Finland has been recorded since 1693. With the increased greenhouse effect, impacts on the cryosphere are likely. One impact will be less ice on rivers and lakes. Freeze-up da...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Thinning of the Arctic sea-ice
Sea-ice draft is the thickness of the part of the ice that is submerged under the sea. Comparison of sea-ice draft data acquired on submarine cruises between 1993 and 1997 with similar data acquired between 1958 and 1976...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Mean sea surface temperature on the Caspian Sea
Recent research by the Caspian Environment Programme estimates the number of living seals to be as low as 150,000. A further reduction in ice cover due to a warming climate could well be one of the major threats facing t...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ice cover on the North Caspian Sea
Higher winter temperatures, possibly related to changes in global climate observed in recent years, have caused thinner ice coverage and restricted the traditional reproduction grounds of the Caspian seal in the shallow ...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Cooling factors
The amount of aerosols in the air has direct effect on the amount of solar radiation hitting the Earth's surface. Aerosols may have significant local or regional impact on temperature. Water vapour is a greenhouse gas, b...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Over the last 400,000 years the Earth's climate has been unstable, with very significant temperature changes, going from a warm climate to an ice age in as rapidly as a few decades. These rapid changes suggest that clima...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Arctic map, political
The Arctic is extremely diverse in terms of landscapes, varying from pack and drift ice to rugged shores, flat coastal plains, rolling hills and mountains surpassing 6000 metres above sea level (Denali, 6,194 m asl, in s...
07 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arctic, topography and bathymetry (topographic map)
The Arctic represents the northermost area of the World, the Arctic Ocean and the land areas that surrounds it. The region is characterized but cold temperatures, and ice and snow. The summers are short, but with long pe...
01 Oct 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arctic sea routes - Northern sea route and Northwest passage
Sea routes along the edges of the Arctic ocean, or rather along the coasts of Northern Canada and Russia, holds potential for decreasing the number of days in shipping goods from the Pacific to Atlantic coasts in Europe ...
07 Oct 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
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