Kwok et al. (2009)
Also: Kwok (2009), Kwok et al. 2009
Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008.
Kwok, R., Cunningham, G. F., Wensnahan, M., Rigor, I., Zwally, H. J., & Yi, D. (2009). Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008. Journal of Geophysical Research: Oceans, 114(C7). Link to PDF
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.