Figure Atlas.4 | Typological and socio-economic regions used in the Interactive Atlas. (a) Eleven ocean regions defined by their biological activity and used for the regional analysis of oceanic variables; (b) ocean regions for Small Islands, including the Caribbean (CAR) and the north Indian Ocean (ARS and BOB); (c) land monsoon regions of North America, South America, Africa, Asia and Australasia; (d) major river basins; (e) mountain regions; (f) WGII continental regions. These regions can be used alternatively to the reference regions for the regional analysis of climatic variables in the Interactive Atlas. The definition of the regions and companion notebooks and scripts are available at the Atlas repository (Iturbide et al., 2021).