Insensitive climate models
Nature Geoscience
2011년6월27일
State-of-the-art climate models, as used in the assessments of the Intergovernmental Panel for Climate Change, could be giving a false sense of security in terms of upcoming abrupt change, suggests a Commentary online this week in Nature Geoscience.
Paul Valdes discusses four examples of abrupt climate change spanning the past 55 million years that have been reconstructed from palaeoclimate data. In two of the cases, complex climate models used in the assessments of future climate change did not adequately simulate the conditions before the onset of change. In the other two cases, the models needed an unrealistically strong push to produce a change similar to that observed in records of past climate.
The author concludes that state-of-the-art climate models may be systematically underestimating the potential for sudden climate change.
doi: 10.1038/ngeo1200
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