Peterson (2003)
Also: Peterson 2003
Assessment of urban versus rural in situ surface temperatures in the contiguous United States: No difference found
Peterson, T. C. (2003). Assessment of urban versus rural in situ surface temperatures in the contiguous United States: No difference found. Journal of Climate, 16(18), 2941-2959. Link to Paper
https://doi.org/10.1175/1520-0442(2003)016<2941:AOUVRI>2.0.CO;2
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.