Marcus et al. (2006)
Also: Marcus et al. 2006
Velocities and Temperatures of Jupiter's Great Red Spot and the New Red Oval and Their Implications for Global Climate Change
Marcus, P., Asay-Davis, X. & Shetty, S. (2006). Velocities and Temperatures of Jupiter's Great Red Spot and the New Red Oval and Their Implications for Global Climate Change. Link to abstract
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.