Articles | Volume 14, issue 2
Geosci. Model Dev., 14, 795–820, 2021
https://doi.org/10.5194/gmd-14-795-2021

Special issue: CMIP6 HighResMIP model descriptions and basic properties

Geosci. Model Dev., 14, 795–820, 2021
https://doi.org/10.5194/gmd-14-795-2021

Model description paper 04 Feb 2021

Model description paper | 04 Feb 2021

The Nonhydrostatic ICosahedral Atmospheric Model for CMIP6 HighResMIP simulations (NICAM16-S): experimental design, model description, and impacts of model updates

Chihiro Kodama et al.

Data sets

The non-hydrostatic global atmospheric model for CMIP6 HighResMIP simulations (NICAM16-S) Chihiro Kodama, Tomoki Ohno, Tatsuya Seiki, Hisashi Yashiro, Akira T. Noda, Masuo Nakano, Yohei Yamada, Woosub Roh, Masaki Satoh, Tomoko Nitta, Daisuke Goto, Hiroaki Miura, Tomoe Nasuno, Tomoki Miyakawa, Ying-Wen Chen, and Masato Sugi https://doi.org/10.5281/zenodo.3727329

Model code and software

The non-hydrostatic global atmospheric model for CMIP6 HighResMIP simulations (NICAM16-S) Chihiro Kodama, Tomoki Ohno, Tatsuya Seiki, Hisashi Yashiro, Akira T. Noda, Masuo Nakano, Yohei Yamada, Woosub Roh, Masaki Satoh, Tomoko Nitta, Daisuke Goto, Hiroaki Miura, Tomoe Nasuno, Tomoki Miyakawa, Ying-Wen Chen, and Masato Sugi https://doi.org/10.5281/zenodo.3727329

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Short summary
This paper describes the latest stable version of NICAM, a global atmospheric model, developed for high-resolution climate simulations toward the IPCC Assessment Report. Our model explicitly treats convection, clouds, and precipitation and could reduce the uncertainty of climate change projection. A series of test simulations demonstrated improvements (e.g., high cloud) and issues (e.g., low cloud, precipitation pattern), suggesting further necessity for model improvement and higher resolutions.