Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 22, issue 7
Articles | Volume 22, issue 7
https://doi.org/10.5194/acp-22-4323-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-4323-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 7
Research article
 | 
04 Apr 2022
Research article |  | 04 Apr 2022

Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates

Richard J. Pope, Rebecca Kelly, Eloise A. Marais, Ailish M. Graham, Chris Wilson, Jeremy J. Harrison, Savio J. A. Moniz, Mohamed Ghalaieny, Steve R. Arnold, and Martyn P. Chipperfield

Data sets

Tropospheric NO2 from satellites TEMIS https://www.temis.nl/airpollution/no2.php

UK emissions data selector NAEI https://naei.beis.gov.uk/data/data-selector?view=air-pollutants

Download emissions maps NAEI https://naei.beis.gov.uk/data/map-uk-das?pollutant_id=6&emiss_maps_submit=naei-20210325121854

ERA5 hourly data on pressure levels from 1979 to present ECMWF https://cds.climate.copernicus.eu/cdsapp\#!/dataset/reanalysis-era5-pressure-levels?tab=overview

CAMS global reanalysis (EAC4) CAMS https://ads.atmosphere.copernicus.eu/cdsapp\#!/dataset/cams-global-reanalysis-eac4?tab=form

Data Selector AURN https://uk-air.defra.gov.uk/data/data_selector

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Short summary
Nitrogen oxides (NOx) are potent air pollutants which directly impact on human health. In this study, we use satellite nitrogen dioxide (NO2) data to evaluate the spatial distribution and temporal evolution of the UK official NOx emissions inventory, with reasonable agreement. We also derived satellite-based NOx emissions for several UK cities. In the case of London and Birmingham, the NAEI NOx emissions are potentially too low by >50%.
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