NEWS (see all)
2019/10/07: 当研究室の山本雄平特任助教と市井で「人工衛星ひまわり8号が捉えた「台風15号一過の猛暑」地表面温度は50℃以上に」とのタイトルでプレスリリースを出しました！是非ご覧ください！ 掲載記事： 環境展望台、大学ジャーナル
2019/10/07: AsiaFlux 2019 - 20th anniversary workshop - was successfully closed. K. Ichii served as chair of local organizing committee, and K. Ichii would really appreciate mainly lead by Profs T. Saitoh and Y. Muraoka, Gifu University. Participants really enjoyed: CHECK twitter record.
2019/10/02: A co-author paper (discussion paper) is published in Biogeoscience Discussion. Jung M., C. Schwalm, M. Migliavacca, S. Walther, G. Camps-Valls, S. Koirala, P. Anthoni, S. Besnard, P. Bodesheim, N. Carvalhais, F. Chevallier, F. Gans, D.S. Groll, V. Haverd, K. Ichii, A.K. Jain, J. Liu, D. Lombardozzi, J.E.M.S. Nabel, J.A. Nelson, M. Pallandt, D. Papale, W. Peters, J. Pongratz, C. Rödenbeck, S. Sitch, G. Tramontana, U. Weber, M. Reichstein, P. Koehler, M. O'Sullivan, and A. Walker (2019) Scaling carbon fluxes from eddy covariance sites to globe: Synthesis and evaluation of the FLUXCOM approach, Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-368, in review.
2019/09/23: Six group members, Ichii, Yamamoto, Zaya, Liu, Taguchi, and Yamanuki, will present our research progress in the AsiaFlux 2019 Workshop (10/2-4@Takayama). Program and Proceedings are available here.
2019/09/22: A co-author paper was published in Atmosphere journal as an outcome of CEReS International Joint Research Program. Kang M., K. Ichii, J. Kim, Y.M. Indrawati, J. Park, M. Moon, J.H. Lim, J.H. Chun (2019) New gap-filling strategies for long-period flux data gaps using data-driven approach. Atmosphere, 10, 568.
2019/09/10: A co-author paper was published in Remote Sensing of Environment. Xiao J., F. Chevallier, C. Gomez, L. Guanter, A.R. Huete, K. Ichii, W. Ni, Y. Pang, A.F. Rahman, G. Sun, W. Yuan, L. Zhang, X. Zhang (2019) Remote sensing of the terrestrial carbon cycle: A review on 50 years of advances, Remote Sensing of Environment. Nice contribution as a benchmarking review paper !
2019/09/09: 当研究室の山本雄平特任助教がエスペック地球環境研究・技術基金「エスペック環境研究奨励賞」を受賞しました！おめでとうございます。詳細は、CEReSニュースレターをご覧ください。
2019/09/09: 当研究室の近藤雅征特任助教がAOGS (Asia-Oceania Geosciences Society)において、Kamide Lecture Awardを受賞しました！おめでとうございます。詳細は、CEReSニュースレターをご覧ください。
2019/05: 所属大学院（修士・博士）を志望する学生さんを広く募集します。研究室見学なども受け付けておりますので、メールなどで連絡を頂ければと思います。大学院入試に関するポスター（本研究室の小菅生さん作成）も是非ご覧ください。
2019/10/07: AsiaFlux 2019 - 20th anniversary workshop - was successfully closed. K. Ichii served as chair of local organizing committee, and K. Ichii would really appreciate mainly lead by Profs T. Saitoh and Y. Muraoka, Gifu University. Participants really enjoyed: CHECK twitter record.
2019/10/02: A co-author paper (discussion paper) is published in Biogeoscience Discussion. Jung M., C. Schwalm, M. Migliavacca, S. Walther, G. Camps-Valls, S. Koirala, P. Anthoni, S. Besnard, P. Bodesheim, N. Carvalhais, F. Chevallier, F. Gans, D.S. Groll, V. Haverd, K. Ichii, A.K. Jain, J. Liu, D. Lombardozzi, J.E.M.S. Nabel, J.A. Nelson, M. Pallandt, D. Papale, W. Peters, J. Pongratz, C. Rödenbeck, S. Sitch, G. Tramontana, U. Weber, M. Reichstein, P. Koehler, M. O'Sullivan, and A. Walker (2019) Scaling carbon fluxes from eddy covariance sites to globe: Synthesis and evaluation of the FLUXCOM approach, Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-368, in review.
2019/09/23: Six group members, Ichii, Yamamoto, Zaya, Liu, Taguchi, and Yamanuki, will present our research progress in the AsiaFlux 2019 Workshop (10/2-4@Takayama). Program and Proceedings are available here.
2019/09/22: A co-author paper was published in Atmosphere journal as an outcome of CEReS International Joint Research Program. Kang M., K. Ichii, J. Kim, Y.M. Indrawati, J. Park, M. Moon, J.H. Lim, J.H. Chun (2019) New gap-filling strategies for long-period flux data gaps using data-driven approach. Atmosphere, 10, 568.
2019/09/10: A co-author paper was published in Remote Sensing of Environment. Xiao J., F. Chevallier, C. Gomez, L. Guanter, A.R. Huete, K. Ichii, W. Ni, Y. Pang, A.F. Rahman, G. Sun, W. Yuan, L. Zhang, X. Zhang (2019) Remote sensing of the terrestrial carbon cycle: A review on 50 years of advances, Remote Sensing of Environment. Nice contribution as a benchmarking review paper !
2019/09/09: 当研究室の山本雄平特任助教がエスペック地球環境研究・技術基金「エスペック環境研究奨励賞」を受賞しました！おめでとうございます。詳細は、CEReSニュースレターをご覧ください。
2019/09/09: 当研究室の近藤雅征特任助教がAOGS (Asia-Oceania Geosciences Society)において、Kamide Lecture Awardを受賞しました！おめでとうございます。詳細は、CEReSニュースレターをご覧ください。
2019/05: 所属大学院（修士・博士）を志望する学生さんを広く募集します。研究室見学なども受け付けておりますので、メールなどで連絡を頂ければと思います。大学院入試に関するポスター（本研究室の小菅生さん作成）も是非ご覧ください。
MISSION
Mission of our group is "monitoring and modeling of earth system toward better prediction of our future earth." Our approach is to integrate and synthesize of available data and models to understand earth system in more comprehensive ways. Our main target is 'terrestrial biosphere' from regional to global scales. We use network of ground observation (e.g. FLUXNET, AsiaFlux), remote sensing data, numerical models (terrestrial ecosystem models), and atmospheric observations.
RESEARCH
Environment Monitoring and Modeling Group
Understandings of Terrestrial CO2 Budget Changes at Global Scales by SynthesisUsing bottom-up approach (e.g ecosystem models) and top-down approaches (e.g. atmospheric inversions), we are working on quantification of terrestrial CO2 budget at various scales (e.g. global, southeast Asia, Asia). These works can become a contribution to global projects such as Future Earth. [Kondo et al. 2018 Nature Comm.; Kondo et al. 2018 GRL; Ichii et al. 2013]. 
Data-driven estimation of terrestrial CO2 fluxes
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Development of a Terrestrial CO2 Flux Product for GCOM-C SGLI Sensor
Using a diagnostic terrestrial biosphere model, AsiaFlux/FLUXNET observation network data, our group is developing a terrestrial CO2 flux (GPP, NPP, NEP) product for GCOM-C SGLI sensor (JAXA's satellite). Our product will be an official research products and released to public.
Satellite-based Monitoring of Vegetation Changes from Regional to Continental ScaleUsing long-term data of satellite remote sensing, we analyzed and detected vegetation and land cover changes from regional to global scales [Sekizawa et al. 2015; Ichii et al. 2013; Ichii et al. 2002; Kawabata et al. 2001]. |
Data-Model Integration toward refinement of terrestrial ecosystem modelsBy integrating satellite data into terrestrial ecosystem model, we estimated unknown ecosystem parameters and successfully improved models. [Kondo et al. 2017; Ichii et al. 2007, 2009].
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Top-down and Bottom-up Synthesis toward Better Understandings of Global Carbon Cycle
We are working on synthesis of multiple independent estimations of terrestrial CO2 fluxes. Estimations include top-down approach (atmospheric inversion model) and bottom-up approach (process-based model, data-driven model, satellite products). [Kondo et al. 2015; Ichii et al. 2017]. |
Earth System Modeling
We demonstrated that future projection of CO2 budget and climate might change if terrestrial carbon cycle model was improved using FLUXNET data. [Suzuki and Ichii, 2010]. |
Model-data intercomparison in Asia etc.
We conducted model-data intercomparison project (Asia-MIP, CarboEastAsia-MIP, and Japan-MIP) to test current model performance using multiple models and observation data [Ichii et al. 2013; Ichii et al. 2010]. |
Keywords:
Terrestrial Biosphere, Remote Sensing, Model, AsiaFlux,Model-data Integration, Synthesis, Carbon Cycle, Water Cycle, Machine Learning
Terrestrial Biosphere, Remote Sensing, Model, AsiaFlux,Model-data Integration, Synthesis, Carbon Cycle, Water Cycle, Machine Learning
