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Volume 10, issue 9 | Copyright
Geosci. Model Dev., 10, 3567-3589, 2017
https://doi.org/10.5194/gmd-10-3567-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Development and technical paper 28 Sep 2017

Development and technical paper | 28 Sep 2017

Calibrating climate models using inverse methods: case studies with HadAM3, HadAM3P and HadCM3

Simon F. B. Tett et al.
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Bellprat, O., Kotlarski, S., Lüthi, D., and Schär, C.: Objective calibration of regional climate models, J. Geophys. Res.-Atmos., 117, d23115, https://doi.org/10.1029/2012JD018262, 2012.
Bellprat, O., Kotlarski, S., Lüthi, D., De Elía, R., Frigon, A., Laprise, R., and Schär, C.: Objective calibration of regional climate models: application over Europe and North America, J. Climate, 29, 819–838, https://doi.org/10.1175/jcli-d-15-0302.1, 2015.
Beven, K. and Freer, J.: Equifinality, data assimilation, and uncertainty estimation in mechanistic modelling of complex environmental systems using the GLUE methodology, J. Hydrol., 249, 11–29, 2001.
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The paper shows it is possible to automatically calibrate the parameters in the atmospheric component of two climate models. The resulting atmosphere–ocean models are often, but not always, stable and realistic. The computational cost to do this is feasible. The implications are that it is possible to generate multiple configurations of a single model with different parameter values but which all look similar to the standard model and that the techniques could be used to calibrate other models.
The paper shows it is possible to automatically calibrate the parameters in the atmospheric...
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