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Related: About this forumResearchers find 200-year lag between climate events in Greenland, Antarctica
http://oregonstate.edu/ua/ncs/archives/2015/apr/researchers-find-200-year-lag-between-climate-events-greenland-antarctica[font face=Serif][font size=5] Researchers find 200-year lag between climate events in Greenland, Antarctica [/font]
04/29/2015
[font size=3]CORVALLIS, Ore. A new study using evidence from a highly detailed ice core from West Antarctica shows a consistent link between abrupt temperature changes on Greenland and Antarctica during the last ice age, giving scientists a clearer picture of the link between climate in the northern and southern hemispheres.
Greenland climate during the last ice age was very unstable, the researchers say, characterized by a number of large, abrupt changes in mean annual temperature that each occurred within several decades. These so-called Dansgaard-Oeschger events took place every few thousand years during the last ice age. Temperature changes in Antarctica showed an opposite pattern, with Antarctica cooling when Greenland was warm, and vice versa.
In this study funded by the National Science Foundation and published this week in the journal Nature, the researchers discovered that the abrupt climates changes show up first in Greenland, with the response to the Antarctic climate delayed by about 200 years. The researchers documented 18 abrupt climate events during the past 68,000 years.
The fact that temperature changes are opposite at the two poles suggests that there is a redistribution of heat going on between the hemispheres, said Christo Buizert, a post-doctoral research at Oregon State University and lead author on the study. We still dont know what caused these past shifts, but understanding their timing gives us important clues about the underlying mechanisms.
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04/29/2015
[font size=3]CORVALLIS, Ore. A new study using evidence from a highly detailed ice core from West Antarctica shows a consistent link between abrupt temperature changes on Greenland and Antarctica during the last ice age, giving scientists a clearer picture of the link between climate in the northern and southern hemispheres.
Greenland climate during the last ice age was very unstable, the researchers say, characterized by a number of large, abrupt changes in mean annual temperature that each occurred within several decades. These so-called Dansgaard-Oeschger events took place every few thousand years during the last ice age. Temperature changes in Antarctica showed an opposite pattern, with Antarctica cooling when Greenland was warm, and vice versa.
In this study funded by the National Science Foundation and published this week in the journal Nature, the researchers discovered that the abrupt climates changes show up first in Greenland, with the response to the Antarctic climate delayed by about 200 years. The researchers documented 18 abrupt climate events during the past 68,000 years.
The fact that temperature changes are opposite at the two poles suggests that there is a redistribution of heat going on between the hemispheres, said Christo Buizert, a post-doctoral research at Oregon State University and lead author on the study. We still dont know what caused these past shifts, but understanding their timing gives us important clues about the underlying mechanisms.
...[/font][/font]
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Researchers find 200-year lag between climate events in Greenland, Antarctica (Original Post)
OKIsItJustMe
Apr 2015
OP
AuntPatsy
(9,904 posts)1. Very interesting
shenmue
(38,506 posts)2. Do penguins have something to do with this?
OKIsItJustMe
(19,938 posts)3. Since penguins do not live in Greenland …
I would say, no.
mackdaddy
(1,527 posts)4. Not so fast...
Glaciers are made of ice, and
Penguins live on ice, and
There is a hockey team named Penguins, and
Hockey is played on Ice, and
the hockey stick is junk science (fox new told me so)
Therefore there is not really any Global Warming!
there I proved it. Let's have Lord Mocker tell the Pope.
(I really hope the sarcasm thingy in not needed.)