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Sea ice strongly linked to climate change in past 90 000 years
https://cage.uit.no/news/sea-ice-strongly-linked-to-climate-change-in-past-90-000-years/[font face=Serif]16/08/2016
[font size=5]Sea ice strongly linked to climate change in past 90 000 years[/font]
[font size=4]Expansion and retreat of sea ice varied consistently in pace with rapid climate changes through past 90,000 years, a new study in Nature Communications shows.[/font]
Maja Sojtaric
[font size=3]“The Arctic sea ice responded very rapidly to past climate changes. During the coldest periods of the past 90,000 years the sea ice edge spread relatively quickly to the Greenland-Scotland Ridge, and probably far into the Atlantic Ocean.“ says Ulrike Hoff, a researcher at Centre for Arctic Gas Hydrate, Environment and Climate (CAGE) and the first author of the Nature Communications study.
Sea ice amplifies the climate changes that are occurring at any given time. Its growth and melting has profound effects on climate, the marine environment and ocean circulation.
…
Hoff and colleagues studied the past distribution of sea ice, in the longest existing sea ice record in a marine sediment core. The core was retrieved from the Nordic Seas, from the water depth of 1200m just off the Faroe Islands. It represents 90,000 years of sediment layers, and it is by studying those layers that scientist can reveal the changes in sea ice and past climate.
…
Sea ice retreated abruptly during warming events; spread rapidly during cooling phases, and became near perennial and perennial during cold periods and Heinrich events, the study states.
…[/font][/font]
http://dx.doi.org/10.1038/ncomms12247[font size=5]Sea ice strongly linked to climate change in past 90 000 years[/font]
[font size=4]Expansion and retreat of sea ice varied consistently in pace with rapid climate changes through past 90,000 years, a new study in Nature Communications shows.[/font]
Maja Sojtaric
[font size=3]“The Arctic sea ice responded very rapidly to past climate changes. During the coldest periods of the past 90,000 years the sea ice edge spread relatively quickly to the Greenland-Scotland Ridge, and probably far into the Atlantic Ocean.“ says Ulrike Hoff, a researcher at Centre for Arctic Gas Hydrate, Environment and Climate (CAGE) and the first author of the Nature Communications study.
Sea ice amplifies the climate changes that are occurring at any given time. Its growth and melting has profound effects on climate, the marine environment and ocean circulation.
…
Hoff and colleagues studied the past distribution of sea ice, in the longest existing sea ice record in a marine sediment core. The core was retrieved from the Nordic Seas, from the water depth of 1200m just off the Faroe Islands. It represents 90,000 years of sediment layers, and it is by studying those layers that scientist can reveal the changes in sea ice and past climate.
…
Sea ice retreated abruptly during warming events; spread rapidly during cooling phases, and became near perennial and perennial during cold periods and Heinrich events, the study states.
…[/font][/font]
