Articles | Volume 7, issue 2
Hydrol. Earth Syst. Sci., 7, 213–219, 2003

Special issue: The Dooge-Eagleson Symposium, EGS-AGU-EUG Joint Assembly,...

Hydrol. Earth Syst. Sci., 7, 213–219, 2003

  30 Apr 2003

30 Apr 2003

Extent of partial ice cover due to carbon cycle feedback in a zonal energy balance model

C. Huntingford1, J. C. Hargreaves2, T. M. Lenton3, and J. D. Annan2 C. Huntingford et al.
  • 1Centre for Ecology and Hydrology,Wallingford, OX10 8BB, UK
  • 2Frontier Research System for Global Change, 3173-25 Showa-machi, Kanazawa-ku, Yokohama-shi,Kanagawa, 236-0001, Japan
  • Also at Proudman Oceanographic Laboratory,Bidston Observatory, Prenton, Merseyside, CH43 7RA, UK
  • 3Centre for Ecology and Hydrology, Edinburgh Research Station, Bush Estate, Penicuik,Midlothian, EH26 0QB, UK
  • Email for corresponding author:

Abstract. A global carbon cycle is introduced into a zonally averaged energy balance climate model. The physical model components are similar to those of Budyko (1969) and Sellers (1969). The new carbon components account for atmospheric carbon dioxide concentrations and the terrestrial and oceanic storage of carbon. Prescribing values for the sum of these carbon components, it is found that inclusion of a closed carbon cycle reduces the range of insolation over which stable partial ice cover solutions may occur. This highly simplified climate model also predicts that the estimated release of carbon from fossil fuel burning over the next hundred years could result in the eventual melting of the ice sheets.

Keywords: climate, carbon cycle,zonal model, earth system modelling