Conclusion
This paper introduced a hierarchical organization of hydrological processes, derived from literature review of journal articles describing experimental watersheds, perceptual models and runoff generation processes. The taxonomy includes over 120 named processes, which are recorded alongside their functional type (e.g. storage, flux), alternative names, and a unique identifier. Processes often had multiple alternative names, which can hinder extraction and sharing of hydrological information. We recommend that authors of journal articles use consistent terms for processes throughout, and consider a separate section with succinct process inference information. The taxonomy can promote hydrological information sharing and synthesis by providing a method to label and search process knowledge.