Umezawa Taku 梅澤拓

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UMEZAWA Taku 梅澤拓

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Researcher Number	00570508
Other IDs
Affiliation (Current)	2025: 東北大学, 理学研究科, 教授 2025: 国立研究開発法人国立環境研究所, 地球システム領域, 主任研究員
Affiliation (based on the past Project Information) *help	2023 – 2025: 国立研究開発法人国立環境研究所, 地球システム領域, 主任研究員 2020: 国立研究開発法人国立環境研究所, 地球システム領域, 主任研究員 2020: 国立研究開発法人国立環境研究所, 環境計測研究センター, 主任研究員 2017 – 2019: 国立研究開発法人国立環境研究所, 環境計測研究センター, 研究員 2012: 東北大学, 大学院・理学研究科, 特別教育研
Review Section/Research Field	Principal Investigator Basic Section 63010:Environmental dynamic analysis-related / Environmental dynamic analysis Except Principal Investigator Medium-sized Section 63:Environmental analyses and evaluation and related fields / Basic Section 63010:Environmental dynamic analysis-related / Environmental dynamic analysis
Keywords	Principal Investigator ハロカーボン / 空気年齢 / 成層圏 / 極域氷床 / 気候変動 / フィルン空気拡散モデル / 同位体比 / モデリング / 同位体 / フィルン / メタン … More Except Principal Investigator … More メタン / 成層圏大気の年齢 / 大気の平均年齢 / 大気の重力分離 / ブリューワードブンソン循環 / 成層圏大気サンプリング / ブリューワー・ドブソン循環 / 重力分離 / 成層圏大気年齢 / 大気観測 / 渦相関法 / 都市 / エタン / 大気輸送モデル / 循環 / 同位体比 / 濃度 / 物質循環 / 間氷期 / 氷期 / 氷床コア Less

High-precision atmospheric measurements for estimating the spatial distribution, intensity, and location of methane emission hotspots in a mega city
- Principal Investigator
  
  植山雅仁
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  Osaka Metropolitan University
多成分気体分析に基づく成層圏物質循環の長期変動の評価
- Principal Investigator
  
  菅原敏
- Project Period (FY)
  2023 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 63:Environmental analyses and evaluation and related fields
- Research Institution
  Miyagi University of Education
過去30年間で成層圏の大気循環は変化したか？：ハロカーボンの新規測定にもとづく推定Principal Investigator
- Principal Investigator
  
  梅澤拓
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 63010:Environmental dynamic analysis-related
- Research Institution
  National Institute for Environmental Studies
Accurate reconstruction of variations of methane isotopes over the last 50 years using halocarbon measurements of firn airPrincipal Investigator
- Principal Investigator
  
  Umezawa Taku
- Project Period (FY)
  2017 – 2020
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  National Institute for Environmental Studies
A study of global methane cycle over the last 130 kyrs based on Antarctic and Greenland deep ice cores
- Principal Investigator
  
  NAKAZAWA Takakiyo
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Environmental dynamic analysis
- Research Institution
  Tohoku University

All 2023 2018 2013 2012 2011 2010 Other

All Journal Article Presentation

[Journal Article] Carbon and hydrogen isotopic ratios of atmospheric methane in the upper troposphere over the western Pacific2012
- Author(s)
  T. Umezawa, T. Machida, K. Ishijima, H. Matsueda, Y. Sawa, P. K. Patra, S. Aoki and T. Nakazawa
- Journal Title
  
  Atmos. Chem. Phys.
  
  Volume: 12 Issue: 17 Pages: 8095-8113
- DOI
  10.5194/acp-12-8095-2012
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22310003, KAKENHI-PROJECT-23310012
[Journal Article] Contributions of natural and anthropogenic sources to atmospheric methane variations over Western Siberia estimated from its carbon and hydrogen isotopes2012
- Author(s)
  T. Umezawa, T. Machida, S. Aoki and T. Nakazawa
- Journal Title
  
  Global Biogeochem. Cycles
  
  Volume: 26 Issue: 4
- DOI
  10.1029/2011gb004232
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22310003
[Journal Article] Carbon and hydrogen stable isotopic ratios of methane emitted from wetlands and wildfires in Alaska: aircraft observations and bonfire experiments2011
- Author(s)
  T. Umezawa, S. Aoki, Y. Kim, S. Morimoto, and T. Nakazawa
- Journal Title
  
  J. Geophys. Res
  
  Volume: 116 Issue: D15
- DOI
  10.1029/2010jd015545
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22310003
[Journal Article] 南北両極域における大気中の温室効果気体と関連気体の変動2010
- Author(s)
  森本真司,石戸谷重之,石島健太郎,八代尚,梅澤拓,菅原敏,橋田元,青木周司,中澤高清,山内恭
- Journal Title
  
  南極資料
  
  Volume: 54 Pages: 374-409
- NAID
  120005510502
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] 改良型クライオサンプラー性能実証試験2023
- Author(s)
  菅原敏, 森本真司, 青木周司, 本田秀之, 中澤高清, 豊田栄, 石戸谷重之, 後藤大輔, 梅澤拓, 長谷部文雄, 石島健太郎, 飯嶋一征, 福家英之
- Organizer
  2023年度大気球シンポジウム
- Data Source
  KAKENHI-PROJECT-23H00513
[Presentation] 成層圏CO2のδ13Cの数値シミュレーション2023
- Author(s)
  菅原敏, 石戸谷重之, 森本真司, 梅澤拓, 後藤大輔, 長谷部文雄, 豊田栄, 青木周司, 中澤高清, 本田秀之
- Organizer
  第28回大気化学討論会
- Data Source
  KAKENHI-PROJECT-23H00513
[Presentation] Past variations of atmospheric methane and its isotope ratios reconstructed from firn air and ice core measurements2018
- Author(s)
  Taku Umezawa
- Organizer
  the 2018 joint 14th iCACGP Quadrennial Symposium/15th IGAC Science Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K18342
[Presentation] Reconstruction of past variations of δ^<13>C and .D in atmospheric CH_4 from its vertical distribution observed in NGRIP firn2013
- Author(s)
  S. Sugawara, T. Umezawa, T. Sugiyama, K. Kawamura, S. Morimoto, S. Aoki and T. Nakazawa
- Organizer
  Third International Symposium on the Arctic Research
- Place of Presentation
  Tokyo
- Year and Date
  2013-01-15
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] Histories of atmospheric methane and its carbon and hydrogen isotopic ratios over the last 250 years obtained from an ice core and firn air2012
- Author(s)
  T. Umezawa, T., S. Sugawara, T. Sugiyama, K. Kawamura, S. Aoki, and T. Nakazawa
- Organizer
  EGU General Assembly 2012
- Place of Presentation
  Vienna, Austria
- Year and Date
  2012-04-24
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] 北極域における大気中メタン濃度と同位体比の変動2011
- Author(s)
  森本真司,梅澤拓,青木周司,中澤高清
- Organizer
  第2回極域科学シンポジウム
- Place of Presentation
  立川
- Year and Date
  2011-11-14
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] 極域における温室効果気体の観測2011
- Author(s)
  青木周司,森本真司,橋田元,菅原敏,八代尚,石戸谷重之,梅澤拓,山内恭,中澤高清
- Organizer
  第2回極域科学シンポジウム
- Place of Presentation
  立川
- Year and Date
  2011-11-14
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] Observations of atmospheric CH_4 and its carbon and hydrogen stable isotopic ratios in the upper troposphere over the western Pacific2011
- Author(s)
  T.Umezawa, et al
- Organizer
  EGU General Assembly 2011
- Place of Presentation
  Vienna
- Year and Date
  2011-04-05
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] 西シベリア上空での大気メタンの炭素・水素安定同位体比観測:大気中メタン濃度変動への地表放出源の影響評価2010
- Author(s)
  梅澤拓, 他
- Organizer
  第16回大気化学討論会
- Place of Presentation
  八王子
- Year and Date
  2010-11-18
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] Interannual variations of the atmospheric methane concentration and its stable isotopes observed at Ny Aalesund, Svalbard and Churchill, Canada2010
- Author(s)
  S. Morimoto, T. Umezawa, L. Huang, S. Aoki, T. Nakazawa and T. Yamanouchi
- Organizer
  2nd International Symposium on Arctic Research
- Place of Presentation
  Tokyo
- Year and Date
  2010-12-08
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] 極域における温室効果気体の観測2010
- Author(s)
  青木周司,森本真司,橋田元,菅原敏,八代尚,石戸谷重之,梅澤拓,山内恭,中澤高清
- Organizer
  第1回極域科学シンポジウム
- Place of Presentation
  立川
- Year and Date
  2010-12-02
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] Effects of natural and anthropogenic CH_4 sources on variations of atmospheric CH_4 over western Siberia identified by its carbon and hydrogen stable isotopes2010
- Author(s)
  T.Umezawa, et al
- Organizer
  2010 AGU Fall Meeting
- Place of Presentation
  San Francisco、米国
- Year and Date
  2010-12-15
- Data Source
  KAKENHI-PROJECT-22310003
[Presentation] Histories of atmospheric methane and its carbon and hydrogen isotopic ratios over the last 250 years obtained from an ice core and firn air
- Author(s)
  T. Umezawa et al.
- Organizer
  EGU General Assembly 2012
- Place of Presentation
  Vienna, Austria
- Data Source
  KAKENHI-PROJECT-22310003

1. MORIMOTO Shinji (30270424)

# of Collaborated Projects: 3 results

# of Collaborated Products: 9 results
2. 菅原敏 (80282151)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
3. NAKAZAWA Takakiyo (30108451)

# of Collaborated Projects: 1 results

# of Collaborated Products: 10 results
4. AOKI Shuji (00183129)

# of Collaborated Projects: 1 results

# of Collaborated Products: 10 results
5. KAWAMURA Kenji (90431478)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
6. 植山雅仁 (60508373)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 寺尾有希夫 (20469745)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. 後藤大輔 (10626386)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
9. 豊田栄 (30313357)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
10. 石戸谷重之 (70374907)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
11. 丹羽洋介 (70588318)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 石島健太郎 (90399494)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results

Umezawa Taku 梅澤 拓

UMEZAWA Taku 梅澤 拓

Research Projects

Research Products

Co-Researchers

High-precision atmospheric measurements for estimating the spatial distribution, intensity, and location of methane emission hotspots in a mega city

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

多成分気体分析に基づく成層圏物質循環の長期変動の評価

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

過去30年間で成層圏の大気循環は変化したか？：ハロカーボンの新規測定にもとづく推定Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Accurate reconstruction of variations of methane isotopes over the last 50 years using halocarbon measurements of firn airPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

A study of global methane cycle over the last 130 kyrs based on Antarctic and Greenland deep ice cores

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Carbon and hydrogen isotopic ratios of atmospheric methane in the upper troposphere over the western Pacific2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Contributions of natural and anthropogenic sources to atmospheric methane variations over Western Siberia estimated from its carbon and hydrogen isotopes2012

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Carbon and hydrogen stable isotopic ratios of methane emitted from wetlands and wildfires in Alaska: aircraft observations and bonfire experiments2011

Author(s)

Journal Title

DOI

Data Source

[Journal Article] 南北両極域における大気中の温室効果気体と関連気体の変動2010

Author(s)

Journal Title

NAID

Data Source

[Presentation] 改良型クライオサンプラー性能実証試験2023

Author(s)

Organizer

Data Source

[Presentation] 成層圏CO2のδ13Cの数値シミュレーション2023

Author(s)

Organizer

Data Source

[Presentation] Past variations of atmospheric methane and its isotope ratios reconstructed from firn air and ice core measurements2018

Author(s)

Organizer

Data Source

[Presentation] Reconstruction of past variations of δ^<13>C and .D in atmospheric CH_4 from its vertical distribution observed in NGRIP firn2013

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] Histories of atmospheric methane and its carbon and hydrogen isotopic ratios over the last 250 years obtained from an ice core and firn air2012

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] 北極域における大気中メタン濃度と同位体比の変動2011

Umezawa Taku 梅澤拓

UMEZAWA Taku 梅澤拓