Impact of aerosols on warm clouds over the Sichuan Basin, China in winter based on the MERRA-2 reanalysis dataset

Zhu, Shaobin; Xiao, Zhisheng; Che, Huizheng; Chen, Quanliang

doi:10.1016/j.apr.2022.101342

Cited by 6 publications

(8 citation statements)

References 61 publications

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“…Figure S1d shows a higher proportion of sulfate aerosols in the total AOD in the SCB during the cold season, which potentially contributes to an increase in the LREF. Zhu et al (2022) found a larger LREF when sulfate aerosol concentrations were high during the winter in the SCB.…”

Section: Correlation Between Aerosol and Cloud Properties In The Tibe...mentioning

confidence: 76%

“…Notably, a signi cant positive correlation is observed between AOD anomaly and CFC anomaly. The study of Zhu et al (2022) concluded that the high concentration of sulfate aerosol in SCB winter may have contributed to the increase in cloudiness.…”

Section: Correlation Between Aerosol and Cloud Properties In The Tibe...mentioning

confidence: 99%

“…The increase of sulfate aerosol loading may favor their activation into CCN, which is conducive to the collision-coalescence process, thereby promoting an increase in LREF. Furthermore, Sulfate aerosols have a strong scattering capability, which reduces the solar ux and cools the atmosphere, leading to a higher relative humidity (Yang et al 2018;Zhu et al 2022). This phenomenon may inhibit the increase of the LREF.…”

Section: In Uence Of Aerosol Concentration On Cloud Propertiesmentioning

confidence: 99%

“…Similar viewpoints are proposed by Zhao et al (2020b;, suggesting that high aerosol concentrations in the SCB enhance atmospheric stability through radiative effect, thereby suppressing convective activity and lightning intensity. Zhu et al (2022) found that the in uence of winter aerosol on warm clouds in the SCB is constrained by meteorological conditions. Stable atmospheric conditions, strong updrafts, and higher relative humidity are conducive to an increase in cloudiness.…”

Section: Introductionmentioning

confidence: 99%

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Aerosol influence on cloud macrophysical and microphysical properties over the Tibetan Plateau and its adjacent regions

Wei,

Zhao,

Wang

et al. 2024

Environ Sci Pollut Res

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This study uses aerosol optical depth (AOD) and cloud properties data to investigate the in uence of aerosol on the cloud properties over the Tibetan Plateau and its adjacent regions. The study regions are divided as the western part of the Tibetan Plateau (WTP), the Indo-Gangetic Plain (IGP), and the Sichuan Basin (SCB). All three regions show signi cant cloud effects under low aerosol loading conditions. In WTP, under low aerosol loading conditions, the effective radius of liquid cloud particles (LREF) decreases with the increase of aerosol loading, while the effective radius of ice cloud particles (IREF) and cloud top height (CTH) increase during the cold season. Increased aerosol loading might inhibit the development of warm rain processes, transporting more cloud droplets above the freezing level and promoting ice cloud development. During the warm season, under low aerosol loading conditions, both the cloud microphysical (LREF and IREF) and macrophysical (cloud top height and cloud fraction) properties increase with the increase of aerosol loading, likely due to higher dust aerosol concentration in this region. In IGP, both LREF and IREF increase with the increase in aerosol loading during the cold season. In SCB, LREF increases with the increase in aerosol loading, while IREF decreases, possibly due to the higher hygroscopic aerosol concentration in the SCB during the cold season. Meteorological conditions also modulate the aerosol-cloud interaction. Under different convective available potential energy (CAPE) and relative humidity (RH) conditions, the in uence of aerosol on clouds varies in the three regions. Under low CAPE and RH conditions, the relationship between LREF and aerosol in both the cold and warm seasons is opposite in the WTP: LREF decreases with the increase of aerosol in the cold season, while it increases in the warm season. This discrepancy may be attributed to a difference in the moisture condition between the cold and warm seasons in this region.

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Section: Correlation Between Aerosol and Cloud Properties In The Tibe...mentioning

confidence: 76%

Section: Correlation Between Aerosol and Cloud Properties In The Tibe...mentioning

confidence: 99%

Section: In Uence Of Aerosol Concentration On Cloud Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Aerosol influence on cloud macrophysical and microphysical properties over the Tibetan Plateau and its adjacent regions

Wei,

Zhao,

Wang

et al. 2024

Environ Sci Pollut Res

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show abstract

“…Zhao et al [28] proposed that high aerosol loading strengthens atmospheric stability through radiative effects, resulting in a decrease in supercooled cloud water above the freezing layer and a reduction in ice particle formation. Zhu et al [29] found that the impact of aerosols on warm clouds is influenced by various meteorological conditions in the Sichuan Basin. High atmospheric stability, strong updrafts, and humid atmospheric conditions tend to enhance cloud cover.…”

Section: Introductionmentioning

confidence: 99%

Potential Modulation of Aerosol on Precipitation Efficiency in Southwest China

Zhao,

Liu,

Zhao

2024

Remote Sensing

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The aerosol–cloud–precipitation correlation has been a significant scientific topic, primarily due to its remarkable uncertainty. However, the possible modulation of aerosol on the precipitation capacity of clouds has received limited attention. In this study, we utilized multi-source data on aerosol, cloud properties, precipitation, and meteorological factors to investigate the impact of aerosols on precipitation efficiency (PE) in the Sichuan Basin (SCB) and Yun-nan-Guizhou Plateau (YGP), where the differences between terrain and meteorological environment conditions were prominent. In the two study regions, there were significant negative correlations between the aerosol index (AI) and PE in spring, especially in the YGP, while the correlations between the AI and PE in other seasons were not as prominent as in spring. In spring, aerosol significantly inhibited both the liquid water path (LWP) and the ice water path (IWP) in the YGP, but negatively correlated with the IWP and had no significant relationship with the LWP in the SCB. Aerosol inhibited precipitation in the two regions mainly by reducing cloud droplet effective radius, indicating that warm clouds contributed more to precipitation in spring. The suppressive impact of aerosols on precipitation serving as the numerator of PE is greater than that of the cloud water path as the denominator of PE, resulting in a negative correlation between aerosol and PE. The AI–PE relationship is significantly dependent on meteorological conditions in the YGP, but not in the SCB, which may be related to the perennial cloud cover and stable atmosphere in the SCB. In the future, as air quality continues to improve, precipitation efficiency may increase due to the decrease in aerosol concentration, and of course, the spatio-temporal heterogeneity of the aerosol–cloud–precipitation relationship may become more significant.

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Variations in aerosols and aerosols–cloud interactions in Bangkok using MODIS satellite data during high PM2.5 concentrations

Pilahome

Nissawan

Jankondee

et al. 2023

Advances in Space Research

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Impact of aerosols on warm clouds over the Sichuan Basin, China in winter based on the MERRA-2 reanalysis dataset

Cited by 6 publications

References 61 publications

Aerosol influence on cloud macrophysical and microphysical properties over the Tibetan Plateau and its adjacent regions

Aerosol influence on cloud macrophysical and microphysical properties over the Tibetan Plateau and its adjacent regions

Potential Modulation of Aerosol on Precipitation Efficiency in Southwest China

Variations in aerosols and aerosols–cloud interactions in Bangkok using MODIS satellite data during high PM2.5 concentrations

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