Articles | Volume 19, issue 20
Atmos. Chem. Phys., 19, 12835–12856, 2019
https://doi.org/10.5194/acp-19-12835-2019
Atmos. Chem. Phys., 19, 12835–12856, 2019
https://doi.org/10.5194/acp-19-12835-2019

Research article 15 Oct 2019

Research article | 15 Oct 2019

High-resolution (0.05°  ×  0.05°) NOx emissions in the Yangtze River Delta inferred from OMI

Hao Kong et al.

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Short summary
We develop a computationally efficient space-based top-down method to inverting NOx emissions in major urban areas at high resolution. The inversion method uses long-term OMI NO2 data to enhance the horizontal resolution, and it accounts for the nonlinear effects of horizontal transport, chemical loss, and deposition on NOx. The inversion results reveal fine-scale spatial information of emissions which is hardly captured by bottom-up inventories.
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