On the relationship between convective precipitation and aerosol pollution in North China Plain during autumn and winter

Vertical Dependency of Aerosol Impacts on Local Scale Convective Precipitation

“…The global precipitation measurement (GPM) mission dual‐frequency precipitation radar (DPR) data set (GPM‐DPR) provides precipitation rate profile and precipitation types (convective, stratiform, and other), while the data set are mainly used to study the vertical structure of precipitation (Sun et al., 2020; Wang R et al., 2021; Yang et al., 2021a) without considering aerosol impacts. Several studies have used GPM‐DPR data set to study the aerosol effect on precipitation, but still focused on surface precipitation rate (Xiao et al., 2022).…”

“…Diverse aerosol effects have been found in previous studies, debating on whether aerosol effects are significant (Guo J. et al., 2014), whether the effects are suppression (Ackerman et al., 2000; Kaufman & Fraser, 1997; Kaufman & Nakajima, 1993; Qian et al., 2009; Rosenfeld, 1999; Zhao et al., 2006) or enhancement (Fan et al., 2018; Koren et al., 2005; Rosenfeld et al., 2008; Wang et al., 2016; Zhao et al., 2018), and whether the effects are monotonic (Guo X. L. et al., 2014; Jiang et al., 2016; Koren et al., 2008; Liu H. et al., 2019; Yang et al., 2018). The dynamics, thermodynamics (Fan et al., 2009; Guo J. et al., 2016; Sun & Zhao, 2020, 2021; Xiao et al., 2022), aerosol types (Han et al., 2022; Jiang et al., 2018; Yang et al., 2016) and cloud types (Chen et al., 2016; Garrett & Zhao, 2006; Gryspeerdt et al., 2014; Gryspeerdt & Stier, 2012) can all modify the aerosol effect on cloud and precipitation.…”

“…Most previous studies have investigated aerosol effect on precipitation by studying the relationships between aerosol and surface precipitation rate or characteristics of cloud (Jiang et al., 2016; Xiao et al., 2022), but few have analyzed the topic from the perspective of the whole vertical structure. The global precipitation measurement (GPM) mission dual‐frequency precipitation radar (DPR) data set (GPM‐DPR) provides precipitation rate profile and precipitation types (convective, stratiform, and other), while the data set are mainly used to study the vertical structure of precipitation (Sun et al., 2020; Wang R et al., 2021; Yang et al., 2021a) without considering aerosol impacts.…”

Impact of Aerosols on Convective System Over the North China Plain: A Numerical Case Study in Autumn

“…The aerosol pollution in North China has a prominent seasonal variation (Miao & Liu, 2019; Y. Li et al., 2021), with worse pollution in autumn and winter. Our previous work found a positive correlation between the convective precipitation rate (PR) and aerosol optical depth in North China during autumn on the basis of Global Precipitation Measurement Dual‐Frequency Precipitation Radar (GPM‐DPR) and the Modern‐Era Retrospective Analysis for Research and Applications, Version 2 (MERRA‐2) (Xiao et al., 2022). The analysis of GPM‐DPR data suggested that convective precipitation systems might have stronger latent heat release under the polluted conditions (Xiao et al., 2022).…”

“…Our previous work found a positive correlation between the convective precipitation rate (PR) and aerosol optical depth in North China during autumn on the basis of Global Precipitation Measurement Dual‐Frequency Precipitation Radar (GPM‐DPR) and the Modern‐Era Retrospective Analysis for Research and Applications, Version 2 (MERRA‐2) (Xiao et al., 2022). The analysis of GPM‐DPR data suggested that convective precipitation systems might have stronger latent heat release under the polluted conditions (Xiao et al., 2022). However, the underlying mechanisms cannot be untangled by analyzing the GPM‐DPR and MERRA‐2 data sets.…”