Climate Change 2001:
Working Group II: Impacts, Adaptation and Vulnerability
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Figure 16-6: Observed and modeled variation of annual averages of Arctic sea-ice extent, based on Vinnikov et al. (1999). Observed data are from Chapman and Walsh (1993) and Parkinson et al. (1999). Sea-ice curves are produced by GFDL low-resolution R15 climate model and by HADCM2 climate model, both forced by CO2 and aerosols.

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