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Development and evaluation of an Earth-System model - HadGEM2

Geoscientific Model Development, ISSN: 1991-9603, Vol: 4, Issue: 4, Page: 1051-1075
2011
  • 1,215
    Citations
  • 0
    Usage
  • 815
    Captures
  • 3
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    1,215
    • Citation Indexes
      1,164
    • Policy Citations
      51
      • Policy Citation
        51
  • Captures
    815
  • Mentions
    3
    • News Mentions
      3
      • News
        3

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Extratropical–Tropical Interaction Model Intercomparison Project (Etin-Mip): Protocol and Initial Results

ETIN-MIP is a community-wide effort to improve dynamical understanding of the linkages between tropical precipitation and radiative biases in various regions, with implications for anthropogenic

Article Description

We describe here the development and evaluation of an Earth system model suitable for centennial-scale climate prediction. The principal new components added to the physical climate model are the terrestrial and ocean ecosystems and gas-phase tropospheric chemistry, along with their coupled interactions. The individual Earth system components are described briefly and the relevant interactions between the components are explained. Because the multiple interactions could lead to unstable feedbacks, we go through a careful process of model spin up to ensure that all components are stable and the interactions balanced. This spun-up configuration is evaluated against observed data for the Earth system components and is generally found to perform very satisfactorily. The reason for the evaluation phase is that the model is to be used for the core climate simulations carried out by the Met Office Hadley Centre for the Coupled Model Intercomparison Project (CMIP5), so it is essential that addition of the extra complexity does not detract substantially from its climate performance. Localised changes in some specific meteorological variables can be identified, but the impacts on the overall simulation of present day climate are slight. This model is proving valuable both for climate predictions, and for investigating the strengths of biogeochemical feedbacks. © 2011. Author(s).

Bibliographic Details

W. J. Collins; N. Bellouin; M. Doutriaux-Boucher; N. Gedney; P. Halloran; T. Hinton; J. Hughes; C. D. Jones; S. Liddicoat; G. Martin; F. O'Connor; J. Rae; C. Senior; I. Totterdell; A. Wiltshire; S. Woodward; M. Joshi; S. Sitch

Copernicus GmbH

Mathematics; Earth and Planetary Sciences

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