Rohde et al. (2013b)
Also: Rohde et al. 2013b
Berkeley earth temperature averaging process
Rohde, R., Muller, R., Jacobsen, R., Perlmutter, S., Rosenfeld, A., Wurtele, J., ... & Mosher, S. (2013). Berkeley earth temperature averaging process. Geoinfor. Geostat.: An Overview, 1(2), 1-13. 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.