Development of water isotope incorporated Earth System Model and first Euro-Japan inter comparison

• Project/Area Number: 19F19024
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 外国
• Review Section: Basic Section 17020:Atmospheric and hydrospheric sciences-related
• Research Institution: The University of Tokyo
• Principal Investigator: 芳村 圭 東京大学, 生産技術研究所, 教授 (50376638)
• Co-Investigator(Kenkyū-buntansha): CAUQUOIN ALEXANDRE 東京大学, 生産技術研究所, 外国人特別研究員
• Project Period (FY): 2019-10-11 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥2,100,000 (Direct Cost: ¥2,100,000); Fiscal Year 2021: ¥800,000 (Direct Cost: ¥800,000); Fiscal Year 2020: ¥900,000 (Direct Cost: ¥900,000); Fiscal Year 2019: ¥400,000 (Direct Cost: ¥400,000)
• Keywords: Water isotopes / GCM / paleoclimate / MIROC / inter-comparison / data assimilation

Outline of Research at the Start

本研究は、日本における地球システムモデルへの同位体物質の導入と、それを用いた日欧相互比較研究等である。そのため、地球システムモデルMIROCへの水同位体情報の導入を行い、すでに欧州で開発が進んでいるECHAM6-isoと合わせて、様々なスケールでの比較検討を行う。

Outline of Annual Research Achievements

During the remaining 5 months of the JSPS project, the isotope-enable oceanic simulation with COCO for pre-industrial conditions (more than 3000 model years long) was performed successfully. The results and the future plan for coupled MIROC6 (incorporation of isotopes is still ongoing), namely MIROC6-iso, has been presented in Tougou A meeting in August 2021.
The home-made isotopic inter-comparisons project is moving on well, with analyses still ongoing. The first results will be presented at the “Water Isotope: From Weather to Climate” workshop in November 2021 by Hayoung BONG.
With the help of colleagues at the lab, I began proxy data assimilation on the isotope results from my coupled simulation of the last 2 millennia. Analyses and progress are still ongoing, and the first results will be presented at the “Water Isotope: From Weather to Climate” workshop too, by myself.

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Applying an isotope-enabled regional climate model over the Greenland ice sheet: effect of spatial resolution on model bias (2021)
  • Author(s): Breil Marcus、Christner Emanuel、Cauquoin Alexandre、Werner Martin、Karremann Melanie、Schadler Gerd
  • Journal Title: Climate of the Past Volume: 17 Issue: 4 Pages: 1685-1699
  • DOI: 10.5194/cp-17-1685-2021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High‐Resolution Nudged Isotope Modeling With ECHAM6‐Wiso: Impacts of Updated Model Physics and ERA5 Reanalysis Data (2021)
  • Author(s): Cauquoin Alexandre、Werner Martin
  • Journal Title: Journal of Advances in Modeling Earth Systems Volume: 13 Issue: 11
  • DOI: 10.1029/2021ms002532
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contribution of the Southern Annular Mode to Variations in Water Isotopes of Daily Precipitation at Dome Fuji, East Antarctica (2021)
  • Author(s): Kino Kanon、Okazaki Atsushi、Cauquoin Alexandre、Yoshimura Kei
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 126 Issue: 23
  • DOI: 10.1029/2021jd035397
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Interglacial Antarctic?Southern Ocean climate decoupling due to moisture source area shifts (2021)
  • Author(s): Landais A.、Stenni B.、Masson-Delmotte V.、Jouzel J.、Cauquoin A.、Fourre; E.、Minster B.、Selmo E.、Extier T.、Werner M.、Vimeux F.、Uemura R.、Crotti I.、Grisart A.
  • Journal Title: Nature Geoscience Volume: 14 Issue: 12 Pages: 918-923
  • DOI: 10.1038/s41561-021-00856-4
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Oxygen and hydrogen isotopic composition of tap waters in France (2021)
  • Author(s): Daux Valerie、Minster B.、Cauquoin A.、Jossoud O.、Werner M.、Landais A.
  • Journal Title: Geological Society, London, Special Publications Volume: 507 Issue: 1 Pages: 47-61
  • DOI: 10.1144/sp507-2020-207
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Transient simulation of the past 2000 years with the isotope-enabled coupled model MPI-ESM-wiso (2021)
  • Author(s): Cauquoin, A., Werner, M., Shoji, S., Okazaki, A., Yoshimura, K., Lohmann, G. and Jungclaus, J.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Transient simulations over the Common Era in PMIP4/CMIP6 (2021)
  • Author(s): Jungclaus, J., Alastrue de Asenjo, E., Cauquoin, A., Fang, S.-W., Khodri, M., Lorenz, S., Ohgaito, R., Sam, T., Timmreck, C., Toohey, M., Werner, M., Yoshida, K., Zanchettin, D., and Zhang, Q.
  • Organizer: EGU 2021
• [Presentation] Sensitivity of simulated oxygen isotopes in ice cores and speleothems to Last Glacial Maximum surface conditions (2021)
  • Author(s): Paul, A., Cauquoin, A., Mulitza, S., Tharammal, T. and Werner, M.
  • Organizer: EGU 2021
• [Presentation] Impacts of large scale atmospheric circulation and its seasonality on water isotopes of daily precipitation at Dome Fuji Station: A study with an isotope-enabled AGCM MIROC5-iso (2021)
  • Author(s): Kino, K., Okazaki, A., Cauquoin, A. and Yoshimura, K.
  • Organizer: JpGU 2021
• [Presentation] Inter-comparison of water isotope-enabled models and reanalysis nudging effects: step forward in SWING project (2021)
  • Author(s): Bong, H., Cauquoin, A., Chang, E.-C., Werner, M., Yeo, N. and Yoshimura, K.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Contribution of the Southern Annular Mode to variations in water isotopes of daily precipitation at Dome Fuji, East Antarctica: A study with an isotope-enabled AGCM MIROC5-iso (2021)
  • Author(s): Kino, K., Okazaki, A., Cauquoin, A. and Yoshimura, K.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] From atmospheric water isotopes measurement to snow core interpretation in Adelie Land: A case study for GCMs with embedded isotopes in Antarctica (2021)
  • Author(s): Leroy-Dos Santos, C., Landais, A., Fourre, E.; Agosta, C., Cauquoin, A. and Werner, M.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Development of MIROC5-iso and its comparison with isotopic climate proxies (2021)
  • Author(s): Okazaki, A., Cauquoin, A., Kino, K. and Yoshimura, K.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Preliminary results of an isotope-enabled earth system model AWIESM-wiso (2021)
  • Author(s): Shi, X., Werner, M., Cauquoin, A. and Sun, Y.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Isotopic signals in precipitation and water vapor during the Hurricanes Irma & Maria (2021)
  • Author(s): Yang, Y., Cauquoin, A., Yoshimura, K. and Werner, M.
  • Organizer: "Water Isotope: From Weather to Climate" workshop
• [Presentation] Water stable isotopes changes in PMIP-type paleoclimate simulations from the fully coupled model MPI-ESM-wiso (2020)
  • Author(s): Cauquoin, A., Werner, M. and Lohmann, G.
  • Organizer: PMIP 2020
• [Presentation] High-resolution isotopic simulations from ECHAM6-wiso nudged with ERA5 reanalyses: new products for isotopic model-data comparisons (2020)
  • Author(s): Cauquoin, A. and Werner, M.
  • Organizer: EGU 2020
• [Presentation] Investigation of the response of water isotope records to the changes in orbital forcing with the isotope-enabled AGCM MIROC5-iso (2020)
  • Author(s): Kino, K., Okazaki, A., Cauquoin, A. and Yoshimura, K.
  • Organizer: EGU 2020
• [Presentation] Sensitivity of isotopes in the hydrological cycle to simulated vs. reconstructed Last Glacial Maximum surface conditions (2020)
  • Author(s): Paul, A., Werner, M., Cauquoin, A., Garcia-Pintado, J., Merkel, U. and Tharammal, T.
  • Organizer: EGU 2020
• [Presentation] A Nine-year series of daily oxygen and hydrogen isotopic composition of precipitation at Concordia station, East Antarctica (2020)
  • Author(s): Stenni, B., Dreossi, G., Casado, M., Scarchilli, C., Landais, A., Del Guasta, M., Grigioni, P., Casasanta, G., Werner, M., Masiol, M., Cauquoin, A. and Ciardini, V.
  • Organizer: EGU 2020
• [Presentation] Key controls of water vapour isotopes during oceanic evaporation and their global impact (2020)
  • Author(s): Werner, M., Bonne, J.-L., Cauquoin, A. and Steen-Larsen, H. C.
  • Organizer: EGU 2020
• [Presentation] LGM simulation with MIROC5-iso and impacts of the synoptic scale events on stable water isotopes in the Antarctic ice cores (2020)
  • Author(s): Kino, K., Okazaki, A., Cauquoin, A., and Yoshimura, K.
  • Organizer: PMIP 2020
• [Presentation] Transient Holocene simulations compared to deep sea cores in the Indian ocean (2020)
  • Author(s): Marti, O., Bassinot, F., Braconnot, P., Jungclaus, J., Cauquoin, A., Lohmann, G., Shi, X. and Werner, M.
  • Organizer: PMIP 2020
• [Presentation] Simulated vs. reconstructed Last Glacial Maximum surface conditions: impact on oxygen isotopes in ice cores, speleothems and precipitation (2020)
  • Author(s): Paul, A., Werner, M., Cauquoin, A., Garcia-Pintado, J., Kovacs, T., Merkel, U. and Tharammal, T.
  • Organizer: AGU 2020
• [Presentation] Introduction to isotope-enabled Earth System Models: examples with MPI-ESM-wiso (2019)
  • Author(s): Cauquoin, A., Werner, M. and Lohmann, G.
  • Organizer: 15th International RSM workshop
  • Int'l Joint Research
• [Presentation] Isotope-enhanced Earth System Models: framework and some examples with MPI- ESM-wiso (2019)
  • Author(s): Cauquoin, A.
  • Organizer: Institute of Tibetan Plateau, Chinese Academy of Science
  • Int'l Joint Research / Invited
• [Presentation] Water isotopes - climate relationships for the mid-Holocene and pre-industrial period simulated with MPI-ESM-wiso (2019)
  • Author(s): Cauquoin, A., Werner, M. and Lohmann, G.
  • Organizer: SISAL 4th workshop
  • Int'l Joint Research