Comparison of chemical lateral boundary conditions  for air quality predictions over the contiguous  United States during pollutant intrusion events

Tang, Youhua; Bian, Huisheng; Tao, Zhining; Oman, Luke D.; Tong, Daniel; Lee, Pius; Campbell, Patrick C.; Baker, Barry; Lu, Cheng-Hsuan; Pan, Li; Wang, Jun; McQueen, Jeffery; Stajner, Ivanka

doi:https://doi.org/10.5194/acp-21-2527-2021

Articles | Volume 21, issue 4

https://doi.org/10.5194/acp-21-2527-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-2527-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 4

Research article

|

19 Feb 2021

Research article |

| 19 Feb 2021

Comparison of chemical lateral boundary conditions for air quality predictions over the contiguous United States during pollutant intrusion events

Youhua Tang, Huisheng Bian, Zhining Tao, Luke D. Oman, Daniel Tong, Pius Lee, Patrick C. Campbell, Barry Baker, Cheng-Hsuan Lu, Li Pan, Jun Wang, Jeffery McQueen, and Ivanka Stajner

Supplement

https://doi.org/10.5194/acp-21-2527-2021-supplement

Data sets

JPSS Program Office (2017): NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Aerosol Optical Depth and Aerosol Particle Size Distribution Environmental Data Record (EDR) from NDE S. Kondragunta, I. Laszlo, and L. Ma https://doi.org/10.7289/V5319T4H

Model code and software

ytangnoaa/EMC_aqfs: NAQFC with CMAQ 5.0.2 (Version v5.1.0) J. Huang, P. Lee, and M. Potts https://doi.org/10.5281/zenodo.4543694

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Short summary

Chemical lateral boundary condition (CLBC) impact is essential for regional air quality prediction during intrusion events. We present a model mapping Goddard Earth Observing System (GEOS) to Community Multi-scale Air Quality (CMAQ) CB05–AERO6 (Carbon Bond 5; version 6 of the aerosol module) species. Influence depends on distance from the inflow boundary and species and their regional characteristics. We use aerosol optical thickness to derive CLBCs, achieving reasonable prediction.