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ACP | Articles | Volume 20, issue 9
Atmos. Chem. Phys., 20, 5293–5308, 2020
https://doi.org/10.5194/acp-20-5293-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 5293–5308, 2020
https://doi.org/10.5194/acp-20-5293-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

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.

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AR by Anna Wenzel on behalf of the Authors (17 Mar 2020)  Author's response
ED: Referee Nomination & Report Request started (17 Mar 2020) by Thomas Karl
ED: Publish subject to minor revisions (review by editor) (27 Mar 2020) by Thomas Karl
AR by Shigeyuki Ishidoya on behalf of the Authors (06 Apr 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (09 Apr 2020) by Thomas Karl
AR by Shigeyuki Ishidoya on behalf of the Authors (23 Apr 2020)  Author's response    Manuscript
ED: Publish as is (24 Apr 2020) by Thomas Karl
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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.
Atmospheric O2 and CO2 concentrations, along with CO2 flux, have been observed in a megacity,...
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