Impacts of Aerosol Loading on Surface Precipitation from Deep Convective Systems over North Central Mongolia

Lkhamjav, Jambajamts; Lee, Hyunho; Jeon, Ye-Lim; Seo, Jaemyeong Mango; Baik, Jong‐Jin

doi:10.1007/s13143-018-0080-5

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…A high concentration of cloud ice and snow for EXP ( Figure 5d) helps a generation of rain water, resulting in a positive precipitation change for EXP. This result is similar to a study by Lkhamjav et al [68], who showed that the increase in mass content of snow particles contributes to a larger surface precipitation amount through melting and collision-coalescence.…”

Section: Precipitation Changesupporting

confidence: 92%

Aerosol Indirect Effects on the Predicted Precipitation in a Global Weather Forecasting Model

et al. 2019

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Aerosol indirect effects on precipitation were investigated in this study using a Global/Regional Integrated Model system (GRIMs) linked with a chemistry package devised for reducing the heavy computational burden occurring in common atmosphere–chemistry coupling models. The chemistry package was based on the Goddard Chemistry Aerosol Radiation and Transport scheme of Weather Research and Forecasting with Chemistry (WRF-Chem), and five tracers that are relatively important for cloud condensation nuclei (CCN) formation were treated as prognostic variables. For coupling with the cloud physics processes in the GRIMs, the CCN number concentrations derived from the simplified chemistry package were utilized in the cumulus parameterization scheme (CPS) and the microphysics scheme (MPS). The simulated CCN number concentrations were higher than those used in original cloud physics schemes and, overall, the amount of incoming shortwave radiation reaching the ground was indirectly reduced by an increase in clouds owing to a high CCN. The amount of heavier precipitation increased over the tropics owing to the inclusion of enhanced riming effects under deep precipitating convection. The trend regarding the changes in non-convective precipitation was mixed depending on the atmospheric conditions. The increase in small-size cloud water owing to a suppressed autoconversion led to a reduction in precipitation. More precipitation can occur when ice particles fall under high CCN conditions owing to the accretion of cloud water by snow and graupel, along with their melting.

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Section: Precipitation Changesupporting

confidence: 92%

Aerosol Indirect Effects on the Predicted Precipitation in a Global Weather Forecasting Model

et al. 2019

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“…Recent numerical modelling studies show that the relationship between precipitation amount and aerosol loading is not monotonic (Jeon et al ., 2018; Lkhamjav et al ., 2018). The amount of precipitation from deep convective clouds slightly decreases as aerosol loading increases in a certain range of concentration, while notably increases in a higher concentration range.…”

Section: Summary and Discussionmentioning

confidence: 99%

Hourly extreme precipitation changes under the influences of regional and urbanization effects in Beijing

Yuan

Zhai

Chen

et al. 2020

Intl Journal of Climatology

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Short duration extreme precipitation has devastating impacts on city area. Local urbanization effects, superimposed upon regional climate change, complicate examination of long‐term changes in short duration precipitation extremes in urban areas. Based on high‐quality rain gauge observations of summer time hourly precipitation in Beijing Region over 1977–2013, this study reveals that despite the general drying tendency for North China, the urban area of Beijing has experienced more hourly precipitation extremes (HPE) than the suburban area since 2004, coinciding with the surge in the growth of urban built‐up areas. These hourly urban precipitation extremes are increasingly inclined to occurring during night‐time, especially during 1800 LST to 0200 LST (UCT+8). On the one hand, the amplified urban heat inland effect, which was more significant at night‐time, seems to have facilitated formation of more intense small scale thermal‐low and resultant ascending branch; on the other hand, it has favoured to establishing unstable stratification in the lower level. This possible mechanism explains the preference of HPE in urban areas during night‐time and climate change diversity under the influence of megacity superposition.

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Modern methods to explore the dynamics between aerosols and convective precipitation: A critical review

Metangley,

Middey,

Kadaverugu

2024

Dynamics of Atmospheres and Oceans

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Impacts of Aerosol Loading on Surface Precipitation from Deep Convective Systems over North Central Mongolia

Cited by 4 publications

References 42 publications

Aerosol Indirect Effects on the Predicted Precipitation in a Global Weather Forecasting Model

Aerosol Indirect Effects on the Predicted Precipitation in a Global Weather Forecasting Model

Hourly extreme precipitation changes under the influences of regional and urbanization effects in Beijing

Modern methods to explore the dynamics between aerosols and convective precipitation: A critical review

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