Polar amplification: Difference between revisions
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'''Polar amplification''' is the observation that "[[Climate models]] generally predict amplified warming in polar regions" due to climate feedbacks.<ref>{{cite journal |first1=Peter T. |last1=Doran |first2=John C. |last2=Priscu |first3=W. Berry |last3=Lyons |first4=John E. |last4=Walsh |first5=Andrew G. |last5=Fountain |first6=Diane M. |last6=McKnight |last7=Moorhead |journal=Nature |first7=DL |last8=Virginia |first8=RA |last9=Wall |first9=DH |title=Antarctic climate cooling and terrestrial ecosystem response |pages=517–20 |date=31 January 2002 |pmid=11793010 |doi=10.1038/nature710 |volume=415 |issue=6871 |url=http://www.nature.com/nature/journal/v415/n6871/full/nature710.html}}</ref> |
'''Polar amplification''' is the observation that "[[Climate models]] generally predict amplified warming in polar regions" due to climate feedbacks.<ref>{{cite journal |first1=Peter T. |last1=Doran |first2=John C. |last2=Priscu |first3=W. Berry |last3=Lyons |first4=John E. |last4=Walsh |first5=Andrew G. |last5=Fountain |first6=Diane M. |last6=McKnight |last7=Moorhead |journal=Nature |first7=DL |last8=Virginia |first8=RA |last9=Wall |first9=DH |title=Antarctic climate cooling and terrestrial ecosystem response |pages=517–20 |date=31 January 2002 |pmid=11793010 |doi=10.1038/nature710 |volume=415 |issue=6871 |url=http://www.nature.com/nature/journal/v415/n6871/full/nature710.html}}</ref> |
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Although the most simple climate models predict warming at both poles, the [[Climate of Antarctica|Antarctic]] has not warmed as much as the [[Climate of the Arctic|Arctic]], and many modern climate models predict this divergence.<ref>{{cite journal |first1=M. M. |last1=Holland |first2=C. M.. |last2=Bitz |title=Polar amplification of climate change in coupled models |pages=222–232 |date=17 June 2003 |doi=10.1007/ |
Although the most simple climate models predict warming at both poles, the [[Climate of Antarctica|Antarctic]] has not warmed as much as the [[Climate of the Arctic|Arctic]], and many modern climate models predict this divergence.<ref>{{cite journal |first1=M. M. |last1=Holland |first2=C. M.. |last2=Bitz |title=Polar amplification of climate change in coupled models |pages=222–232 |date=17 June 2003 |doi=10.1007/s00382-003-0332-6|url=http://www.springerlink.com/content/kpb6v1cg4ubab4aj/fulltext.pdf}}</ref> |
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According to the [[IPCC]] [[4AR]]: "In contrast to the unanimity of the models in predicting a north-polar amplification of warming, there are differences among the model projections concerning polar amplification in Antarctica, especially over the continent." |
According to the [[IPCC]] [[4AR]]: "In contrast to the unanimity of the models in predicting a north-polar amplification of warming, there are differences among the model projections concerning polar amplification in Antarctica, especially over the continent." |
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Revision as of 12:52, 27 November 2011
Polar amplification is the observation that "Climate models generally predict amplified warming in polar regions" due to climate feedbacks.[1]
Although the most simple climate models predict warming at both poles, the Antarctic has not warmed as much as the Arctic, and many modern climate models predict this divergence.[2]
According to the IPCC 4AR: "In contrast to the unanimity of the models in predicting a north-polar amplification of warming, there are differences among the model projections concerning polar amplification in Antarctica, especially over the continent."
The question of whether or not observed Antarctic climate is consistent with climate model predictions has taken on political overtones and become a point of controversy in debates over anthropogenic climate change.
See also
References
- ^ Doran, Peter T.; Priscu, John C.; Lyons, W. Berry; Walsh, John E.; Fountain, Andrew G.; McKnight, Diane M.; Moorhead, DL; Virginia, RA; Wall, DH (31 January 2002). "Antarctic climate cooling and terrestrial ecosystem response". Nature. 415 (6871): 517–20. doi:10.1038/nature710. PMID 11793010.
- ^ Holland, M. M.; Bitz, C. M.. (17 June 2003). "Polar amplification of climate change in coupled models" (PDF): 222–232. doi:10.1007/s00382-003-0332-6.
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