“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Subject classification
Social Sciences88Earth and Planetary Sciences64Economics, Econometrics and Finance50Environmental Science44Geography. Anthropology. Recreation: Geography (General)1