[A-CG09] Development and application of land and ocean biogeochemistry components of Earth system models

Mon. May 23, 2016 1:45 PM - 3:15 PM 102 (1F)

Convener:*Michio Kawamiya(Japan Agency for Marine-Earth Science and Technology), Kaoru Tachiiri(Japan Agency for Marine-Earth Science and Technology), Tomohiro Hajima(Japan Agency for Marine-Earth Science and Technology), Vivek Arora(Canadian Centre for Climate Modelling and Analysis), Chair:Michio Kawamiya(Japan Agency for Marine-Earth Science and Technology)

Earth System Models (ESMs) include representations of biogeochemical cycles including the carbon and nutrient cycles, aerosols and atmospheric chemistry, and the coupling of these processes to the physical climate system, which itself is represented through atmosphere, land and ocean components. ESMs are comprehensive tools which allow to project the response of the physical climate system, as well as the associated biogeochemical cycles, to future changes in concentration of greenhouse gases and/or their anthropogenic emissions and other climate forcers. The 6th phase of Coupled Model Intercomparison Project (CMIP6) is an international research project which amongst its many model intercomparison projects (MIPs) will allow to compare climate change projections from participating ESMs. The Coupled Climate ? Carbon Cycle Model Intercomparison Project (C4MIP) which focusses on carbon cycle is one of the MIPs endorsed by CMIP6. Efforts such as those of the CMIP community allow for an organized cooperation among institutes from across the world and are expected to yield significant advances in the understanding of dynamics of carbon and nutrients cycles, atmospheric tracers, and future changes in the ocean and land ecosystems. The purpose of this session is to discuss the development and evaluation of ESMs and its components, and the scientific issues which can be addressed with them. It is hoped that such discussion will lead to refining the future scope of ongoing efforts such as C4MIP for investigating the role of, and changes in, biogeochemical cycles in affecting global change.

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1:45 PM - 2:00 PM

[ACG09-01] MARine Ecosystem Model Intercomparison Project (MAREMIP)

★Invited papers

Scott Doney¹, *Takafumi Hirata² (1.Woods Hole Oceanographic Institution, 2.Faculty of Environmental Earth Science, Hokkaido University)

2:00 PM - 2:15 PM

[ACG09-02] Emergence of multiple ocean ecosystem drivers in a large ensemble suite with an Earth system model

*Keith B Rodgers¹, Jonathan Lin², Thomas Frölicher³ (1.AOS Program, Princeton University, Princeton, USA, 2.Princeton University, Princeton, USA, 3.ETH, Zurich, Switzerland)

2:15 PM - 2:30 PM

[ACG09-03] Ocean carbon pumps in CMIP5 earth system models diagnosed by a vector diagram

*Akira Oka¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo)

2:30 PM - 2:45 PM

[ACG09-04] Nonlinear Interactions between Climate and Atmospheric Carbon Dioxide Drivers of Terrestrial and Marine Carbon Cycle Changes from 1850 to 2300

*Forrest M Hoffman¹, James Randerson², J Keith Moore², Michael L Goulden², Weiwei Fu², Charles D Koven³, Abigail LS Swann⁴, Natalie M Mahowald⁵, Keith Lindsay⁶, Ernesto Munoz⁶, Gordon B Bonan⁶ (1.Oak Ridge National Laboratory, 2.University of California Irvine, 3.Lawrence Berkeley National Laboratory, 4.University of Washington, 5.Cornell University, 6.National Center for Atmospheric Research)

2:45 PM - 3:00 PM

[ACG09-05] Can we bet on negative emissions to achieve the 2°C target even under strong carbon cycle feedbacks?

*Katsumasa Tanaka¹, Yoshiki Yamagata¹, Tokuta Yokohata¹, Seita Emori¹, Tatsuya Hanaoka¹ (1.National Institute for Environmetal Studies)

3:00 PM - 3:15 PM

[ACG09-06] Development of Integrated Terrestrial Model: a biogeophysical land surface model with human components

*Tokuta Yokohata¹, Akihiko Ito¹, Naota Hanasaki¹, Gen Sakurai², Tsuguki Kinoshita³, Toshichika Iizumi², Yoshimitsu Masaki¹, Tomoko Nitta⁴, Yadu Pokhrel⁵, Seita Emori¹ (1.National Institute for Environmental Studies, 2.National Institute for Agro-Environmental Sciences, 3.Ibaraki University, 4.Atmosphere Ocean Research Institute, University of Tokyo, 5.Rutgers University)