Our group is looking for new members who would like to do research in our laboratory (graduate students, research students, etc.) or support research such as data analysis (undergraduate to graduate students). We are also happy to accept JSPS PostDoc researchers. If you are interested, please contact us by e-mail.
我々のグループでは、本研究室で研究をしてみたい（大学院生、研究生など）、データ解析など研究のお手伝いをしてみたい（学部生～大学院生他）などの方々を広く募集しています。学振PDなどの受入も大歓迎です。興味があれば、連絡（メール）下さい。
大学院（修士・博士）への入学希望(2023年4月入学or 2022年10月入学)の方々の説明・面談も随時行っております。大学からの入試情報はコチラ。
我々のグループでは、本研究室で研究をしてみたい（大学院生、研究生など）、データ解析など研究のお手伝いをしてみたい（学部生～大学院生他）などの方々を広く募集しています。学振PDなどの受入も大歓迎です。興味があれば、連絡（メール）下さい。
大学院（修士・博士）への入学希望(2023年4月入学or 2022年10月入学)の方々の説明・面談も随時行っております。大学からの入試情報はコチラ。
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市井研究室のロゴを作成しました。使用ガイドラインはこちら
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NEWS (see all)
2023/01/28: Our group have two oral talks on Himawari-8 development and application in iLEAPS-OzFlux Joint Conference 2023, Auckland, New Zealand.
2023/01/01: Happy New Year !! ^^
2022/12/28: Call for Researcher(s): 本研究室では、静止衛星などを用いた陸域モニタリング研究（科研費基盤Sプロジェクト）を推進する研究員を募集しています。興味のある方のご質問・ご応募をお待ちしております！
2022/12/28: Call for Researcher(s): 私の所属先千葉大CEReSでは、衛星データなどによる診断型の地球環境研究を推進する研究員を募集しています。興味のある方のご質問・ご応募をお待ちしています！
2022/12/16: Ichii and Yamamoto joined American Geophysical Union (AGU) Fall Meeting in Chicago, and presented our results.
2022/12/16: Greeting by Ruci-san (research assist prof.) and Daniel-san (researcher) in CEReS Newsletter Nov issue.
2022/12/09: Ichii and Yamamoto visited NASA Ames Research Center (California, US) to discuss collaboration.
2022/12/09: A co-author paper just published online: Nagai et al. (in press) Review: Monitoring of land cover changes and plant phenology by remote-sensing in East Asia. Ecological Research.
2022/12/05: Dr. Prabir Patra visited us to discuss our collaboration work.
2022/12/03: We had a GEO group meeting (Kakenhi-group) in Nagoya.
2022/12/01: We joined iLEAPS-Japan Conference in Nagoya University. Ichii, Yamamoto, and Beak (M2) presented our researches.
2022/10/13: 本研究室では、JAXA GCOM-Cプロジェクトなどの種々の衛星データからプロダクトを構築する技術補佐員（プログラミングができる方）を募集しています。興味のある方、市井までお知らせください。
2022/08/12: テレビ朝日「羽鳥慎一モーニングショー」(AM8:00～)において、なぜ千葉県勝浦市は周りに比べて涼しいのか、という解説を行いました。また、特任助教の山本さん提供のひまわり８号地表面温度のデータを提供しました。番組からのTwitterでも一部情報が公開されています。
2022/08/05: ひまわり8号による地表面温度推定に関する論文(Yamamoto et al. 2022)に関する解説記事をCEReSのWebサイトに出しました。
ひまわり8号の地表面温度推定システムをアップデート～より正確な「地球の熱症状」の診断が可能に～
2022/08/04: We had three oral presentations in Geostationary Satellite Session in AOGS 2022 (online), and spent a great time with other presenters.
2022/08/01: New Member in Lab. Sayaka Suzuki and Hiromi Yazawa joined our group as technical assistants. Welcome !
2022/07/29: Prof. Tsolmon Renchin left our lab, and went back to Mongolia (finished her stay in Chiba Univ). Time flies so fast, however, it was a great time for us. Looking forward to future continuous collaboration with us !
2022/07/20: Li Jiawei and Hina Yamanuki successfully finished master presentation. Congratulations !
2022/07/17: We visited Tomakomai Fluxsite, Hokkaido, Japan for outreach activity and learning.
2022/07/13: Results of CEReS Joint Research Call were released. We have four domestic projects and one international project accepted.
2022/07/09: New Paper on Himawari-8 Land Surface Temperature Algorithms by Dr. Yuhei Yamamoto. (Open Access)
Yamamoto Y., K. Ichii, Y. Ryu, M. Kang, S. Maruyama (2022) Uncertainty quantification in land surface temperature retrieved from Himawari-8/AHI data by operational algorithms. ISPRS Journal of Photogrammetry and Remote Sensing, 191, 171-187.
2022/07/07: We had a Geostationary Satellite Research Meeting in Chiba University. Prof Tomoaki Miura, Univ of Hawaii, Manoa, visited us. We spent wonderful days with Prof Miura and other members in Japan.
2022/07/04: 本研究室では、引き続き、2名の特任研究員(特任助教)の公募を行っています。静止衛星に関連した公募(プロジェクト期間: FY2022-2026)、衛星による炭素フラックスの推定に関連した公募(プロジェクト期間: FY2022-2024)です。興味のある方は市井まで連絡ください。
2022/07/01: New Member in Lab. Kanako Kuze joined our group as an administrative assistant. Welcome !
2022/06/30: New Projects Accepted. JSPS Kakenhi 挑戦的研究(萌芽) 「環北極域における超高頻度衛星観測データの創出による陸面劇的変動の早期高精度検出(PI: Kazuhito Ichii, FY2022-2024)」, and 「スパースセンサ最適化による費用対効果の高い観測位置決定手法の開拓 (PI; Shunji Kotsuki, K. Ichii co-I)」
2022/06/30: New Project Web Page Launched! JSPS Core-to-Core Program: “GEOLAND-NET(GEOstationary-satellite LAND monitoring NETwork)”
2022/06/21: Just Accepted. New Project on Data-driven diagnistics of terrestrial water and carbon cycles. JSPS Kakenhi 学術変革領域(A) 観測ビッグデータ駆動型の広域陸域水・物質循環推定による陸域生態系変動の診断 (PI: Kazuhito ICHII, FY2022-2023)
2022/06/14:New Project Web Page Launched ! JSPS Kakenhi Kiban S “Hypertemporal terrestrial biosphere monitoring by GEO satellites”
2022/06/10:We took group photos in Chiba University Campus.
2022/06/03:Our lab members have five presentations (talk x 1, poster x 4). K. Ichii also led one session (Carbon Cycle) and co-lead one session (Terrestrial ecosystems) in JpGU 2022 Conference.
2022/06/02:Prof. Tsolmon Renchin, National University of Mongolia stays with us for two months.
2022/05/12: Call for a PostDoc (terrestrial monitoring by GEO satellites) by Jun 30.
2022/05/06: 当研究室では、事務補佐員を1名募集しています。応募をお待ちしております。
2022/05/02: 所属大学院（千葉大-融合理工-地球環境科学専攻-リモートセンシングコース）の入試説明会を5/28土に実施します。申込はコチラ。
2022/04/27: Just Accepted. New Project on Application of GEO Satellites to Terrestrial Biosphere Monitoring. JSPS Kiban (S) 第三世代静止気象衛星群による全球高頻度観測は陸域生態環境理解に何をもたらすか？(PI: Kazuhito ICHII, FY2022-2026)
2022/04/01: Member Updated. New member: Makiko Tanaka (Tech Assist), Akane Kurihara (B4) and Shogo Sumii (B4), welcome !
2022/04/01: Conference Presentation List was updated, newly added from Apr 2021 to Mar 2022.
2023/01/01: Happy New Year !! ^^
2022/12/28: Call for Researcher(s): 本研究室では、静止衛星などを用いた陸域モニタリング研究（科研費基盤Sプロジェクト）を推進する研究員を募集しています。興味のある方のご質問・ご応募をお待ちしております！
2022/12/28: Call for Researcher(s): 私の所属先千葉大CEReSでは、衛星データなどによる診断型の地球環境研究を推進する研究員を募集しています。興味のある方のご質問・ご応募をお待ちしています！
2022/12/16: Ichii and Yamamoto joined American Geophysical Union (AGU) Fall Meeting in Chicago, and presented our results.
2022/12/16: Greeting by Ruci-san (research assist prof.) and Daniel-san (researcher) in CEReS Newsletter Nov issue.
2022/12/09: Ichii and Yamamoto visited NASA Ames Research Center (California, US) to discuss collaboration.
2022/12/09: A co-author paper just published online: Nagai et al. (in press) Review: Monitoring of land cover changes and plant phenology by remote-sensing in East Asia. Ecological Research.
2022/12/05: Dr. Prabir Patra visited us to discuss our collaboration work.
2022/12/03: We had a GEO group meeting (Kakenhi-group) in Nagoya.
2022/12/01: We joined iLEAPS-Japan Conference in Nagoya University. Ichii, Yamamoto, and Beak (M2) presented our researches.
2022/10/13: 本研究室では、JAXA GCOM-Cプロジェクトなどの種々の衛星データからプロダクトを構築する技術補佐員（プログラミングができる方）を募集しています。興味のある方、市井までお知らせください。
2022/08/12: テレビ朝日「羽鳥慎一モーニングショー」(AM8:00～)において、なぜ千葉県勝浦市は周りに比べて涼しいのか、という解説を行いました。また、特任助教の山本さん提供のひまわり８号地表面温度のデータを提供しました。番組からのTwitterでも一部情報が公開されています。
2022/08/05: ひまわり8号による地表面温度推定に関する論文(Yamamoto et al. 2022)に関する解説記事をCEReSのWebサイトに出しました。
ひまわり8号の地表面温度推定システムをアップデート～より正確な「地球の熱症状」の診断が可能に～
2022/08/04: We had three oral presentations in Geostationary Satellite Session in AOGS 2022 (online), and spent a great time with other presenters.
2022/08/01: New Member in Lab. Sayaka Suzuki and Hiromi Yazawa joined our group as technical assistants. Welcome !
2022/07/29: Prof. Tsolmon Renchin left our lab, and went back to Mongolia (finished her stay in Chiba Univ). Time flies so fast, however, it was a great time for us. Looking forward to future continuous collaboration with us !
2022/07/20: Li Jiawei and Hina Yamanuki successfully finished master presentation. Congratulations !
2022/07/17: We visited Tomakomai Fluxsite, Hokkaido, Japan for outreach activity and learning.
2022/07/13: Results of CEReS Joint Research Call were released. We have four domestic projects and one international project accepted.
2022/07/09: New Paper on Himawari-8 Land Surface Temperature Algorithms by Dr. Yuhei Yamamoto. (Open Access)
Yamamoto Y., K. Ichii, Y. Ryu, M. Kang, S. Maruyama (2022) Uncertainty quantification in land surface temperature retrieved from Himawari-8/AHI data by operational algorithms. ISPRS Journal of Photogrammetry and Remote Sensing, 191, 171-187.
2022/07/07: We had a Geostationary Satellite Research Meeting in Chiba University. Prof Tomoaki Miura, Univ of Hawaii, Manoa, visited us. We spent wonderful days with Prof Miura and other members in Japan.
2022/07/04: 本研究室では、引き続き、2名の特任研究員(特任助教)の公募を行っています。静止衛星に関連した公募(プロジェクト期間: FY2022-2026)、衛星による炭素フラックスの推定に関連した公募(プロジェクト期間: FY2022-2024)です。興味のある方は市井まで連絡ください。
2022/07/01: New Member in Lab. Kanako Kuze joined our group as an administrative assistant. Welcome !
2022/06/30: New Projects Accepted. JSPS Kakenhi 挑戦的研究(萌芽) 「環北極域における超高頻度衛星観測データの創出による陸面劇的変動の早期高精度検出(PI: Kazuhito Ichii, FY2022-2024)」, and 「スパースセンサ最適化による費用対効果の高い観測位置決定手法の開拓 (PI; Shunji Kotsuki, K. Ichii co-I)」
2022/06/30: New Project Web Page Launched! JSPS Core-to-Core Program: “GEOLAND-NET(GEOstationary-satellite LAND monitoring NETwork)”
2022/06/21: Just Accepted. New Project on Data-driven diagnistics of terrestrial water and carbon cycles. JSPS Kakenhi 学術変革領域(A) 観測ビッグデータ駆動型の広域陸域水・物質循環推定による陸域生態系変動の診断 (PI: Kazuhito ICHII, FY2022-2023)
2022/06/14:New Project Web Page Launched ! JSPS Kakenhi Kiban S “Hypertemporal terrestrial biosphere monitoring by GEO satellites”
2022/06/10:We took group photos in Chiba University Campus.
2022/06/03:Our lab members have five presentations (talk x 1, poster x 4). K. Ichii also led one session (Carbon Cycle) and co-lead one session (Terrestrial ecosystems) in JpGU 2022 Conference.
2022/06/02:Prof. Tsolmon Renchin, National University of Mongolia stays with us for two months.
2022/05/12: Call for a PostDoc (terrestrial monitoring by GEO satellites) by Jun 30.
2022/05/06: 当研究室では、事務補佐員を1名募集しています。応募をお待ちしております。
2022/05/02: 所属大学院（千葉大-融合理工-地球環境科学専攻-リモートセンシングコース）の入試説明会を5/28土に実施します。申込はコチラ。
2022/04/27: Just Accepted. New Project on Application of GEO Satellites to Terrestrial Biosphere Monitoring. JSPS Kiban (S) 第三世代静止気象衛星群による全球高頻度観測は陸域生態環境理解に何をもたらすか？(PI: Kazuhito ICHII, FY2022-2026)
2022/04/01: Member Updated. New member: Makiko Tanaka (Tech Assist), Akane Kurihara (B4) and Shogo Sumii (B4), welcome !
2022/04/01: Conference Presentation List was updated, newly added from Apr 2021 to Mar 2022.
MISSIONMission 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.
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MOVIE |
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RESEARCH
Keywords:
Terrestrial Biosphere, Remote Sensing, Model, AsiaFlux,Model-data Integration, Synthesis, Carbon Cycle, Water Cycle, Machine Learning |
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 SensorUsing 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 [e.g. 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]. We are also working on evaluating ESMs using available RS observation datasets. |
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]. |
