JpGU-AGU Joint Meeting 2020

Presentation information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-CG Complex & General

[A-CG48] Projection and detection of global environmental change

convener:Michio Kawamiya(Japan Agency for Marine-Earth Science and Technology), Kaoru Tachiiri(Japan Agency for Marine-Earth Science and Technology), Hiroaki Tatebe(Japan Agency for Marine-Earth Science and Technology), V Ramaswamy(NOAA GFDL)

[ACG48-03] Evaluation of carbon cycles in a suite of CMIP6-C4MIP experiments by Meteorological Research Institute Earth System Model version 2.0 (MRI-ESM2.0)

*Hiroyuki Tsujino1, Atsushi Obata1, Seiji Yukimoto1, Masahiro Hosaka1, Taichu Y Tanaka1, Toyama Katsuya1, Tsuyoshi Koshiro1, Shogo Urakawa1, Hideyuki Nakano1 (1.Japan Meteorological Agency / Meteorological Research Institute)

Keywords:CMIP6, C4MIP, carbon cycle, earth system model

Meteorological Research Institute of Japan Meteorological Agency conducted a suite of climate projection experiments to understand response of the coupled climate–carbon cycle system to increasing anthropogenic CO2 emissions and concentrations by following protocols of the Coupled Climate–Carbon Cycle Model Intercomparison Project (C4MIP) endorsed by the phase 6 of Couple Model Intercomparison Project (CMIP6). This poster will present overall evaluation of the experiments in terms of their carbon cycle by comparing with observations and similar experiments conducted by other climate modeling centers. This gives in effect an evaluation of the biogeochemical components of MRI-ESM2.0. Although the qualitative behaviors of the climate–carbon cycle system are reasonable, the carbon uptake by the land component tends to be larger than other models. This results in the atmospheric CO2 concentrations in emission-driven experiments lower than those of the corresponding CO2 concentration scenarios, requiring improvements for the terrestrial carbon-cycle component in a future version of MRI-ESM2.0. The poster will also present comprehensive evaluation of carbon cycle in the ocean component.