Articles | Volume 20, issue 9
Atmos. Chem. Phys., 20, 5293–5308, 2020
https://doi.org/10.5194/acp-20-5293-2020
Atmos. Chem. Phys., 20, 5293–5308, 2020
https://doi.org/10.5194/acp-20-5293-2020
Research article
15 May 2020
Research article | 15 May 2020

O2 : CO2 exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO2 emissions

Shigeyuki Ishidoya et al.

Related authors

Influence of CO2 adsorption on cylinders and fractionation of CO2 and air during the preparation of a standard mixture
Nobuyuki Aoki, Shigeyuki Ishidoya, Shohei Murayama, and Nobuhiro Matsumoto
Atmos. Meas. Tech., 15, 5969–5983, https://doi.org/10.5194/amt-15-5969-2022,https://doi.org/10.5194/amt-15-5969-2022, 2022
Short summary
Measurement report: Method for evaluating CO2 emission from a cement plant by atmosphere O2 / N2 and CO2 measurements and its applicability to the detection of CO2 capture signals
Shigeyuki Ishidoya, Kazuhiro Tsuboi, Hiroaki Kondo, Kentaro Ishijima, Nobuyuki Aoki, Hidekazu Matsueda, and Kazuyuki Saito
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-570,https://doi.org/10.5194/acp-2022-570, 2022
Preprint under review for ACP
Short summary
Spatiotemporal variations of the δ(O2 ∕ N2), CO2 and δ(APO) in the troposphere over the western North Pacific
Shigeyuki Ishidoya, Kazuhiro Tsuboi, Yosuke Niwa, Hidekazu Matsueda, Shohei Murayama, Kentaro Ishijima, and Kazuyuki Saito
Atmos. Chem. Phys., 22, 6953–6970, https://doi.org/10.5194/acp-22-6953-2022,https://doi.org/10.5194/acp-22-6953-2022, 2022
Short summary
Intercomparison of O2 ∕ N2 ratio scales among AIST, NIES, TU, and SIO based on a round-robin exercise using gravimetric standard mixtures
Nobuyuki Aoki, Shigeyuki Ishidoya, Yasunori Tohjima, Shinji Morimoto, Ralph F. Keeling, Adam Cox, Shuichiro Takebayashi, and Shohei Murayama
Atmos. Meas. Tech., 14, 6181–6193, https://doi.org/10.5194/amt-14-6181-2021,https://doi.org/10.5194/amt-14-6181-2021, 2021
Short summary
Secular change in atmospheric Ar∕N2 and its implications for ocean heat uptake and Brewer–Dobson circulation
Shigeyuki Ishidoya, Satoshi Sugawara, Yasunori Tohjima, Daisuke Goto, Kentaro Ishijima, Yosuke Niwa, Nobuyuki Aoki, and Shohei Murayama
Atmos. Chem. Phys., 21, 1357–1373, https://doi.org/10.5194/acp-21-1357-2021,https://doi.org/10.5194/acp-21-1357-2021, 2021
Short summary

Related subject area

Subject: Gases | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
The unexpected high frequency of nocturnal surface ozone enhancement events over China: characteristics and mechanisms
Cheng He, Xiao Lu, Haolin Wang, Haichao Wang, Yan Li, Guowen He, Yuanping He, Yurun Wang, Youlang Zhang, Yiming Liu, Qi Fan, and Shaojia Fan
Atmos. Chem. Phys., 22, 15243–15261, https://doi.org/10.5194/acp-22-15243-2022,https://doi.org/10.5194/acp-22-15243-2022, 2022
Short summary
Source apportionment of VOCs, IVOCs and SVOCs by positive matrix factorization in suburban Livermore, California
Rebecca A. Wernis, Nathan M. Kreisberg, Robert J. Weber, Greg T. Drozd, and Allen H. Goldstein
Atmos. Chem. Phys., 22, 14987–15019, https://doi.org/10.5194/acp-22-14987-2022,https://doi.org/10.5194/acp-22-14987-2022, 2022
Short summary
Measurement report: Intra- and interannual variability and source apportionment of volatile organic compounds during 2018–2020 in Zhengzhou, central China
Shijie Yu, Shenbo Wang, Ruixin Xu, Dong Zhang, Meng Zhang, Fangcheng Su, Xuan Lu, Xiao Li, Ruiqin Zhang, and Lingling Wang
Atmos. Chem. Phys., 22, 14859–14878, https://doi.org/10.5194/acp-22-14859-2022,https://doi.org/10.5194/acp-22-14859-2022, 2022
Short summary
Formation and impacts of nitryl chloride in Pearl River Delta
Haichao Wang, Bin Yuan, E Zheng, Xiaoxiao Zhang, Jie Wang, Keding Lu, Chenshuo Ye, Lei Yang, Shan Huang, Weiwei Hu, Suxia Yang, Yuwen Peng, Jipeng Qi, Sihang Wang, Xianjun He, Yubin Chen, Tiange Li, Wenjie Wang, Yibo Huangfu, Xiaobing Li, Mingfu Cai, Xuemei Wang, and Min Shao
Atmos. Chem. Phys., 22, 14837–14858, https://doi.org/10.5194/acp-22-14837-2022,https://doi.org/10.5194/acp-22-14837-2022, 2022
Short summary
Multidecadal increases in global tropospheric ozone derived from ozonesonde and surface site observations: can models reproduce ozone trends?
Amy Christiansen, Loretta J. Mickley, Junhua Liu, Luke D. Oman, and Lu Hu
Atmos. Chem. Phys., 22, 14751–14782, https://doi.org/10.5194/acp-22-14751-2022,https://doi.org/10.5194/acp-22-14751-2022, 2022
Short summary

Cited articles

Aoki, N., Ishidoya, S., Matsumoto, N., Watanabe, T., Shimosaka, T., and Murayama, S.: Preparation of primary standard mixtures for atmospheric oxygen measurements with less than 1 µmol mol−1 uncertainty for oxygen molar fractions, Atmos. Meas. Tech., 12, 2631–2646, https://doi.org/10.5194/amt-12-2631-2019, 2019. 
Aubinet, M., Vesala, T., and Papale, D. (Eds.): Eddy Covariance: A Practical Guide to Measurement and Data Analysis, Springer, the Netherlands, 2012. 
Blaine, T. W., Keeling, R. F., and Paplawsky, W. J.: An improved inlet for precisely measuring the atmospheric Ar∕N2 ratio, Atmos. Chem. Phys., 6, 1181–1184, https://doi.org/10.5194/acp-6-1181-2006, 2006. 
Etsuki, R.: SCADA system of Tokyo Gas for wide-area city gas distribution, in: Proceedings of the 53rd Japan Joint Automatic Control Conference, Kochi, Japan, November 2010, 46, 1099–1102, 2010. 
Goto, D., Morimoto, S., Ishidoya, S., Ogi, A., Aoki, S., and Nakazawa, T.: Development of a high precision continuous measurement system for the atmospheric O2∕N2 ratio and its application at Aobayama, Sendai, Japan, J. Meteorol. Soc. Jpn., 91, 179–192, 2013a. 
Download
Short summary
Atmospheric O2 and CO2 concentrations, along with CO2 flux, have been observed in a megacity, Tokyo, Japan. The O2 : CO2 exchange ratio for net turbulent O2 and CO2 fluxes (ORF) between the urban area and the overlaying atmosphere was obtained, and we applied it to estimate the diurnal cycles of CO2 fluxes from gas and liquid fuel consumption separately. We found simultaneous observations of ORF and CO2 flux are useful in validating CO2 emission inventories from statistical data.
Altmetrics
Final-revised paper
Preprint