An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing–Tianjin–Hebei

Zhou, Siyuan; Yang, Jing; Wang, Wei-Chyung; Zhao, Chuanfeng; Gong, Daoyi; Shi, Peijun

doi:https://doi.org/10.5194/acp-20-5211-2020

Articles | Volume 20, issue 9

https://doi.org/10.5194/acp-20-5211-2020

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

https://doi.org/10.5194/acp-20-5211-2020

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

Articles | Volume 20, issue 9

Research article

|

05 May 2020

Research article |

| 05 May 2020

An observational study of the effects of aerosols on diurnal variation of heavy rainfall and associated clouds over Beijing–Tianjin–Hebei

Siyuan Zhou, Jing Yang, Wei-Chyung Wang, Chuanfeng Zhao, Daoyi Gong, and Peijun Shi

Data sets

Terra MODIS Level-3 aerosol and clouddataset LAADS DAAC https://ladsweb.modaps.eosdis.nasa.gov/

Ultraviolet AI data GES DISC https://daac.gsfc.nasa.gov/datasets?keywords=OMI&page=1

MACC-II and ERA-Interim reanalysis dataset EXMWF https://apps.ecmwf.int/datasets/

Short summary

Aerosol–cloud–precipitation interaction is a challenging problem in regional climate. Our study contrasted the observed diurnal variation of heavy rainfall and associated clouds over Beijing–Tianjin–Hebei between clean and polluted days during the 2002–2012 summers. We found the heavy rainfall under pollution has earlier start time, earlier peak time and longer duration, and further found the absorbing aerosols and scattering aerosols play different roles in the heavy rainfall diurnal variation.