Abstract

This document describes about the Sixth version of Minimal Advanced Treatments of Surface Interaction and RunOff (MATSIRO) model, which is implemented in MIROC6 climate model. The original document was written in 2001 by Dr. Seita Emori in Japanese about the very first version of MATSIRO, which was implemented in CCSR/NIES AGCM5. There has been no update since then, even though there are significant updates in the model itself. Furthermore, thinking about Integrated Land Simulator or ILS, the new framework of land model, which adopts MATSIRO as a part of physical model components, it is highly needed to make efficient ways to update the document by community effort. These are the main motivations of making this document. To update the description, we organized MATSIRO6 document writing team in the summer of 2020. Furthermore, it was decided to utilize Github version management platform to maintain the documentation by the team. The team consists of two groups; the authors and the super-visors/editors. All of the authors are doctor course students of Global Hydrology Group of the University of Tokyo, who use or are interested in using MATSIRO6, and the supervisors/editors are researchers, who contributed to development of MATSIRO6 and/or its previous versions.