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ACP | Articles | Volume 19, issue 20
Atmos. Chem. Phys., 19, 12835–12856, 2019
https://doi.org/10.5194/acp-19-12835-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 19, 12835–12856, 2019
https://doi.org/10.5194/acp-19-12835-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

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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Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2019-500,https://doi.org/10.5194/amt-2019-500, 2020
Revised manuscript accepted for AMT
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Cited articles

Alnaes, M. S., Blechta, J., Hake, J., Johansson, A., Kehlet, B., Logg, A., Richardson, C., Ring, J., Rognes, M. E., and Wells, G. N.: The FEniCS Project Version 1.5, Archive of Numerical Software, 3, 9–23, https://doi.org/10.11588/ans.2015.100.20553, 2015. 
Armijo, L.: Minimization of functions having Lipschitz continuous first partial derivatives, Pac. J. Math., 16, 1–3, https://doi.org/10.2140/pjm.1966.16.1, 1966. 
Barnes, I. and Rudziński, K. J.: Disposal of Dangerous Chemicals in Urban Areas and Mega Cities, Springer Netherlands, 2013. 
Beirle, S., Boersma, K. F., Platt, U., Lawrence, M. G., and Wagner, T.: Megacity Emissions and Lifetimes of Nitrogen Oxides Probed from Space, Science, 333, 1737–1739, https://doi.org/10.1126/science.1207824, 2011. 
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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.
We develop a computationally efficient space-based top-down method to inverting NOx emissions in...
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