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Observed and model simulated 20th century Arctic temperature variability: Canadian Earth System Model CanESM2
Open accessAbstract
Abstract. We present simulations of the 20th century Arctic temperature anomaly from the second generation Canadian Earth System Model (CanESM2). The new model couples together an atmosphere-ocean general circulation model, a land-vegetation model and terrestrial and oceanic interactive carbon cycle. It simulates well the observed 20th century Arctic temperature variability that includes the early and late 20th century warming periods and the intervening 1940–1970 period of substantial cooling. The addition of the land-vegetation model and the terrestrial and oceanic interactive carbon cycle to the coupled atmosphere-ocean model improves the agreement with observations from 1900–1970, however, it increases the overestimate of the post 1970 warming. In contrast the older generation coupled atmosphere-ocean general circulation models Canadian CanCM3 and NCAR/LANL CCSM3, used in the IPCC 2007 climate change assessment report, overestimate the rate of the 20th century Arctic warming by factor of two to three and they are unable to reproduce the observed 20th century Arctic climate variability.
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Coupled Model Intercomparison Project 5 (CMIP5) simulations of climate following volcanic eruptions
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Metadata
- Authors
- Chylek, P., Li, J., Dubey, M. K., Wang, M., & Lesins, G.
- Publisher
- Copernicus GmbH
- Published
- 2011-08-15
- OpenAlex
- W2117389412
- Cited by
- 331
- References
- 20
- Type
- posted content
- Language
- en
- Open access
- gold
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