气候变化领域集成服务门户(CCPortal): Cloud resolving simulation of extremely heavy rainfall event over Kerala in August 2018 – Sensitivity to microphysics and aerosol feedback

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DOI	10.1016/j.atmosres.2021.105613
	Cloud resolving simulation of extremely heavy rainfall event over Kerala in August 2018 – Sensitivity to microphysics and aerosol feedback
	Thomas B.; Viswanadhapalli Y.; Srinivas C.V.; Dasari H.P.; Attada R.; Langodan S.
发表日期	2021
ISSN	0169-8095
卷号	258
英文摘要	The state of Kerala located in the southwestern part of India experienced heavy to extremely heavy rainfall events from 07 to 17 August 2018 during the southwest monsoon, leading to a devastating flood and extensive infrastructure damage. Rainfall analysis suggests that the prolonged heavy rainfall event between 14 and 17 August 2018, was responsible for the major devastation. In this work, the sensitivity of prediction of heavy rainfall during 14–17 August 2018 to cloud microphysics parameterization (CMP) is investigated using the Weather Research and Forecasting (WRF) model. High resolution (1-km) cloud resolving simulations are conducted to study the sensitivity of rainfall to the cloud microphysics schemes and cloud-aerosol interactions. The model results are compared with observations such as Automatic Weather Station, Tropical Rainfall Measuring Mission, radiosonde, Global Precipitation Mission precipitation estimates and Doppler weather radar products. Comparisons of simulated hydrometeor structure with DWR estimates and thermodynamic stability indices with radiosonde reveal that the differences in microphysics formulations play a vital role on the thermodynamic profile that in turn influence the intensity of convection and hydrometeor structure responsible for the extremely heavy rainfall. Comparison of simulated rainfall with IMD observational estimates suggests that the Thomson aerosol aware scheme, followed by Goddard microphysics captured the spatial and temporal distributions of observed heavy rainfall. The Thomson aerosol aware scheme followed by Goddard produced strong convective instability conditions for heavy rainfall due to the simulation of a strong westerly jet and the formation of an offshore vortex. © 2021 Elsevier B.V.
英文关键词	And WRF model; Cloud Microphysics; Heavy rainfall events; Kerala
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236741
作者单位	National Atmospheric Research Laboratory, Gadanki, Andhra Pradesh 517112, India; Department of Atmospheric Sciences, Cochin University of Science and Technology, Cochin, 682016, India; Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute, Kalpakkam, Tamilnadu 603102, India; Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Saudi Arabia; Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research Mohali, India
推荐引用方式 GB/T 7714	Thomas B.,Viswanadhapalli Y.,Srinivas C.V.,等. Cloud resolving simulation of extremely heavy rainfall event over Kerala in August 2018 – Sensitivity to microphysics and aerosol feedback[J],2021,258.
APA	Thomas B.,Viswanadhapalli Y.,Srinivas C.V.,Dasari H.P.,Attada R.,&Langodan S..(2021).Cloud resolving simulation of extremely heavy rainfall event over Kerala in August 2018 – Sensitivity to microphysics and aerosol feedback.Atmospheric Research,258.
MLA	Thomas B.,et al."Cloud resolving simulation of extremely heavy rainfall event over Kerala in August 2018 – Sensitivity to microphysics and aerosol feedback".Atmospheric Research 258(2021).