The long-term trend and production sensitivity change in the US ozone pollution from observations and model simulations

He, Hao; Liang, Xin-Zhong; Sun, Chao; Tao, Zhining; Tong, Daniel Q.

doi:https://doi.org/10.5194/acp-20-3191-2020

Articles | Volume 20, issue 5

https://doi.org/10.5194/acp-20-3191-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-3191-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 5

Research article

|

17 Mar 2020

Research article |

| 17 Mar 2020

The long-term trend and production sensitivity change in the US ozone pollution from observations and model simulations

Hao He, Xin-Zhong Liang, Chao Sun, Zhining Tao, and Daniel Q. Tong

Supplement

https://doi.org/10.5194/acp-20-3191-2020-supplement

Data sets

ERI data ECMWF https://rda.ucar.edu/datasets/ds627.0

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Short summary

We studied the trend of US ozone pollution from 1990 to 2015 using EPA observations and computer simulations. Observations indicated a decrease in peak ozone at noon due to regulations and a slight increase in ozone in early morning and late afternoon possibly. Our modeling system confirmed these findings and provided detailed information about ozone photochemistry. These results revealed the success of previous control measures and provide scientific evidence for the future regulations.