Remotely sensed and surface measurement-  derived mass-conserving inversion of daily  NO<sub><i>x</i></sub> emissions and inferred combustion  technologies in energy-rich northern China

Li, Xiaolu; Cohen, Jason Blake; Qin, Kai; Geng, Hong; Wu, Xiaohui; Wu, Liling; Yang, Chengli; Zhang, Rui; Zhang, Liqin

doi:https://doi.org/10.5194/acp-23-8001-2023

Articles | Volume 23, issue 14

https://doi.org/10.5194/acp-23-8001-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-8001-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 14

Research article

|

18 Jul 2023

Research article |

| 18 Jul 2023

Remotely sensed and surface measurement- derived mass-conserving inversion of daily NO_x emissions and inferred combustion technologies in energy-rich northern China

Xiaolu Li, Jason Blake Cohen, Kai Qin, Hong Geng, Xiaohui Wu, Liling Wu, Chengli Yang, Rui Zhang, and Liqin Zhang

Data sets

Data for "Remotely Sensed and Surface Measurement Derived Mass-Conserving Inversion of Daily High-Resolution NOx Emissions and Inferred Combustion Technologies in Energy Rich Northern China" Xiaolu Li, Jason Blake Cohen, and Kai Qin https://doi.org/10.6084/m9.figshare.20459889

ERA5 hourly data on pressure levels from 1940 to present ECMWF https://doi.org/10.24381/cds.bd0915c6

Changes in China’s anthropogenic emissions during the COVID-19 pandemic B. Zheng, Q. Zhang, G. Geng, Q. Shi, Y. Lei, and K. He https://doi.org/10.6084/m9.figshare.c.5214920.v2

Sentinel-5P TROPOMI Tropospheric NO2 1-Orbit L2 5.5 km x 3.5 km (S5P_L2_NO2_HiR) GES DISC https://disc.gsfc.nasa.gov/datasets/S5P_L2__NO2____HiR_2/summary?keywords=tropomi NO2

Short summary

Remotely sensed NO2 and surface NOx are combined with a mathematical method to estimate daily NOx emissions. The results identify new sources and improve existing estimates. The estimation is driven by three flexible factors: thermodynamics of combustion, chemical loss, and atmospheric transport. The thermodynamic term separates power, iron, and cement from coking, boilers, and aluminum. This work finds three causes for the extremes: emissions, UV radiation, and transport.

Remotely sensed and surface measurement- derived mass-conserving inversion of daily NOx emissions and inferred combustion technologies in energy-rich northern China

Data sets

Remotely sensed and surface measurement- derived mass-conserving inversion of daily NO_x emissions and inferred combustion technologies in energy-rich northern China