• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

How much does a city exhaust CO2 ?

Research Project

Project/Area Number 18K01129
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 04010:Geography-related
Research Institution防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群)

Principal Investigator

Sugawara Hirofumi  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), 応用科学群, 教授 (60531788)

Co-Investigator(Kenkyū-buntansha) 石戸谷 重之  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 研究グループ長 (70374907)
寺尾 有希夫  国立研究開発法人国立環境研究所, 地球環境研究センター, 主任研究員 (20469745)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords二酸化炭素 / 都市 / 地球温暖化 / 酸素 / 炭素同位体 / 気候変動
Outline of Final Research Achievements

Carbon dioxide flux was measured continuously in Shibuya Tokyo Japan. The flux showed diurnal pattern which has the peaks in morning and evening, and the pattern was consistent with the emission inventory based on the fossil fuel consumption.
We developed new methodology which dissolves the total measured flux into the component flux from each emission source (gas fuel and liquid fuel combustion). The methodology uses carbon isotope and oxygen concentration. The dissolved flux from gas fuel combustion showed diurnal pattern similar to the total flux. The flux form liquid fuel combustion showed morning peak but not for the evening peak. These pattern was consistent to the inventory analysis and the developed methodology was proved for its accuracy.

Academic Significance and Societal Importance of the Research Achievements

市街地は温室効果を引き起こす二酸化炭素の一大排出エリアである。二酸化炭素については様々な排出削減策がとられているが、それらが実際にどの程度効率的に行われているのかを調査する術がこれまでなかった。本研究では、大気中の二酸化炭素を測定し、それがどの発生源(都市ガスの燃焼、あるいは自動車での排出)から排出されたものかを明らかにする新たに手法を開発した。この手法を発展させれば、排出削減策の実効果を定量的に評価することが将来可能になる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (9 results) (of which Int'l Joint Research: 7 results) Remarks (1 results)

  • [Journal Article] Estimation of PM2.5 Emission Sources in the Tokyo Metropolitan Area by Simultaneous Measurements of Particle Elements and Oxidative Ratio in Air2020

    • Author(s)
      Kaneyasu Naoki、Ishidoya Shigeyuki、Terao Yukio、Mizuno Yusuke、Sugawara Hirofumi
    • Journal Title

      ACS Earth and Space Chemistry

      Volume: 4 Issue: 2 Pages: 297-304

    • DOI

      10.1021/acsearthspacechem.9b00314

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microscale Warming due to Poor Ventilation at Surface Observation Stations2019

    • Author(s)
      Sugawara Hirofumi、Kondo Junsei
    • Journal Title

      Journal of Atmospheric and Oceanic Technology

      Volume: 36 Issue: 7 Pages: 1237-1254

    • DOI

      10.1175/jtech-d-18-0176.1

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Off-line urban building energy model reproducibility against ‘observed’ anthropogenic heat and electricity consumption2020

    • Author(s)
      Takane, Y., K. Nakajima, Y. Kikegawa, H. Sugawara, S. Ishidoya, Y. Terao, K. Yamaguchi, N. Kaneyasu, and M. Hara
    • Organizer
      European Geosciences Union General Assembly 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 現地観測から推定された人工排熱と電力消費量に対するoff-line都市気候・建物エネルギーモデルの再現性2020

    • Author(s)
      髙根雄也, 中島虹, 亀卦川幸浩, 菅原広史, 石戸谷重之, 寺尾有希夫, 山口和貴, 兼保直樹, 原政之
    • Organizer
      日本気象学会2020年度春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Atmospheric observations of CO2, 14CO2 and O2 concentrations to capture fossil fuel CO2 emissions from the Greater Tokyo Area2020

    • Author(s)
      Terao, Y., Tohjima, Y., Ishidoya, S., Ouchi, M., Osonoi, Y., Mukai, H., Machida, T., Sugawara, H., Kaneyasu, N., and Niwa, Y.
    • Organizer
      European Geosciences Union General Assembly 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous atmospheric observation of CO2 flux, 14CO2, O2 and CO2 concentrations and aerosol components in Tokyo for partitioning of CO2 flux into emission sources.2019

    • Author(s)
      Y. Terao, H. Sugawara, S. Ishidoya and N. Kaneyasu
    • Organizer
      AGU Fall Meeting 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Estimation of PM2.5 emission source in Tokyo Metropolitan area by simultaneous measurements of particle elements and oxidative ratio in air.2019

    • Author(s)
      N. Kaneyasu, S. Ishidoya, H. Kondo, Y. Mizuno and Y. Terao
    • Organizer
      The 11th Asian Aerosol Conference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 代々木街区での都市ガス消費と自動車起源の人工排熱量の分離推定に向けた二酸化炭素フラックスおよび酸素/二酸化炭素交換比の同時観測2019

    • Author(s)
      石戸谷重之、菅原広史、寺尾有希夫、髙根雄也、兼保直樹
    • Organizer
      日本気象学会2019年度秋季大会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 都市におけるCO2フラックスの支配因子に関する観測的研究2019

    • Author(s)
      菅原広史、小川陽平、石戸谷重之、寺尾有希夫
    • Organizer
      日本気象学会2019年度春季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Turbulent flux measurement for urban CO2 emission -Partitioning eddy flux into emission sources-2019

    • Author(s)
      Hirofumi Sugawara
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Long term measurement of heat and carbon deoxide flux in Tokyo2019

    • Author(s)
      Yohei Ogawa
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] 代々木での二酸化炭素排出量リアルタイムモニタ

    • URL

      https://twitter.com/yoyogiCO2

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi