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Development of an Integrated Earth System Model at FRCGC

Development of an Integrated Earth System Model at FRCGC. Taroh MATSUNO Michio KAWAMIYA Hisashi SATO Kengo SUDO Frontier Research Center for Global Change (FRCGC). FRCGC integrated Earth System Model. Kyousei2 Project: Development of an Integrated Earth System Model at FRCGC.

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Development of an Integrated Earth System Model at FRCGC

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  1. Development of an Integrated Earth System Model at FRCGC Taroh MATSUNO Michio KAWAMIYA Hisashi SATO Kengo SUDO Frontier Research Center for Global Change (FRCGC)

  2. FRCGC integrated Earth System Model

  3. Kyousei2 Project:Development of an Integrated Earth System Model at FRCGC PI: T. Matsuno M. Aita, A. Abe-Ouchi***, A. Ito, S. Emori, T. Oikawa**, R. Ogaito, M. Kawamiya M. Kishi*,N. Kuba, T. Kohyama*, H. Kondo, H. Sato, Ta. Suzuki, Ts. Suzuki, K. Sudo, T. Segawa, K. Takata, M. Takahashi***, M. Takigawa, K. Tanaka, Y. Tsushima, Y. Yamanaka*, C. Yoshikawa, S. Watanabe (FRCGC) M. Kimoto, K. Suzuki, T. Nakajima, H. Hasumi (CCSR/Univ. of Tokyo) T. Nagashima, T. Nozawa (NIES) T. Takemura (Kushu Univ.) Double affiliates of FRCGC researchers: *Hokkaido Univ., **Univ. of Tsukuba, ***CCSR/Univ. of Tokyo

  4. Carbon Cycle Component

  5. FRCGC Carbon Cycle Component Models: Terrestrial model • Sim-CYCLE by Itoh & Oikawa (2002) • 20 PFTs without dynamic vegetation • 5 compartments for each PFT

  6. “DGVMization” of Sim-CYCLE DGVM: Dynamical Global Vegetation Model -> Incorporation of the effect of biome-shift into Sim-CYCLE Individual basis model, which explicitly treat 3D forest-structure within 30m x 30m patches Individual characteristics Foliage : biomass, crown diameter, crown depth Stem : biomass, height, sapwood & heartwood diameter Root : biomass --- Shape of crown and stem are approximated by cylinder

  7. FRCGC Carbon Cycle Component Models: Oceanic model • 4-compartment ecosystem model (Oschlies & Garcon, 1998) • Treatment of carbonate system as recommended by OCMIP

  8. Atmosphere-Ocean Coupled Model • MIROC 3.2 Intermediate Resolution Version (no flux adjustment) • “borrowed” from the K-1 project • Atmosphere: • CCSR/NIES/FRCGC AGCM 5.7 • T42L20 • Online aerosol • Ocean: • COCO3.4 (developed by CCSR, Univ. of Tokyo) • (0.5-1.0)°×1.4°, 43 Layers + BBL

  9. Participation in C4MIP • C4MIP: Coupled Carbon Cycle Climate Model Intercomparison Project • Strongly IPCC-conscious • Participants: Hadley (UK); IPSL (France); MPI (Germany); LLNL, NCAR, Berkeley, Maryland, GFDL (US); CSIRO (Australia); FRCGC (Japan) • Our “pacemaker” Kyousei Integrated Synergetic System Model of the Earth KISSME!

  10. C4MIP Phase 1 Experiment • Land-atmosphere coupled run • Do not really focus on climate-carbon cycle interaction • CO2 as a simple tracer with sources and sinks at the surface (including land use change) • Results due in Feb. 2005

  11. Leaf Area Index (Jul. 1990) 7 7 3.5 3.5 0 0 LAI （NOAA AVHRR; Jul. 1990） LAI　（Model; Jul. 1990）

  12. Net Primary Production [MgC/ha/yr] [MgC/ha/yr] 15 15 10 10 5 5 0 0 NPP （ISLSCP 17 model ave） NPP （Model; 1990-1999 ave）

  13. Distribution of CO2 (1990) [ppmv] [ppmv] [ppmv] 360 360 360 340 340 340 320 320 320 DJF JJA

  14. Distribution of CO2 from land ecosystem (1990) [ppmv] [ppmv] 330 330 310 310 DJF JJA

  15. Distribution of CO2 from air-sea exchange 325 325 320 320 DJF JJA

  16. C4MIP Phase 2 Experiment • Experiments with full coupled model including the ocean (like KISSME) • In parallel with Phase 1 • Protocol yet to be firmly established • “Flying leap” experiments can be its prototype. • 1%/yr increase of CO2 emission • Experiments w/ and w/o interactions between climate and carbon cycle • Results due to Feb. 2005?

  17. Preliminary results from a “climate of 20th century” run with the full coupled model w/o interactions Obs. w/ interactions

  18. Air-Sea CO2 Exchange Obs. Nomalized for 1995 (Takahashi, 1999) Model result for 1980

  19. Intrusion of anthropogenic CO2 Model Obs. (Sabine et al., 2004) Atlantic 60S 60N Eq. Pacific 60S Eq. 40N

  20. Summary for Carbon Cycle Modeling • Preliminary results with land-atmosphere and land-atmosphere-ocean coupled models • Collaboration with the “sister project” K-1 -> tune-up of the coupled climate model • Participation in C4MIP -> Contribution to IPCC AR4 • Fine-tuning of the carbon cycle components is now being carried out --- Stay tuned!

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