Articles | Volume 21, issue 6
Atmos. Chem. Phys., 21, 5235–5251, 2021
https://doi.org/10.5194/acp-21-5235-2021
Atmos. Chem. Phys., 21, 5235–5251, 2021
https://doi.org/10.5194/acp-21-5235-2021

Research article 01 Apr 2021

Research article | 01 Apr 2021

COVID-19 lockdown-induced changes in NO2 levels across India observed by multi-satellite and surface observations

Akash Biswal et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by V. Singh on behalf of the Authors (09 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (10 Feb 2021) by Andreas Hofzumahaus
RR by Anonymous Referee #1 (10 Feb 2021)
RR by Anonymous Referee #2 (24 Feb 2021)
ED: Publish as is (02 Mar 2021) by Andreas Hofzumahaus
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Short summary
Satellite and surface observations show a reduction in NO2 levels over India during the lockdown compared to business-as-usual years. A substantial reduction, proportional to the population, was observed over the urban areas. The changes in NO2 levels at the surface during the lockdown appear to be present in the satellite observations. However, TROPOMI showed a better correlation with surface NO2 and was more sensitive to the changes than OMI because of the finer resolution.
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