气候变化领域集成服务门户(CCPortal): Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study

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DOI	10.1016/j.atmosres.2019.01.013
	Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study
	Varghese M.; Prabha T.V.; Murugavel P.; Anu A.S.; Resmi E.A.; Dinesh G.; Jaya Rao Y.; Nagare B.; Safai P.D.; Nair S.; Nandakumar K.; Vishnu R.; Bhavani Kumar Y.
发表日期	2019
ISSN	0169-8095
起始页码	125
结束页码	140
卷号	220
英文摘要	Unique airborne observations made ≅330 km south of Mt. Everest during the Cloud-Aerosol Interaction Precipitation Enhancement EXperiment (CAIPEEX) 2014 are presented in this case study. These observations provide the vertical profile and elemental composition of aerosols from single particle analysis during the break period. An “aerosol dome” was also documented from the horizontal transect across the Varanasi city. The boundary layer was dominated by light scattering fine mode aerosols mainly a mixture of dust and pollution. The individual particle characterization revealed complex mixing states within the same aerosol aggregate. Externally mixed aerosols were present at the cloud bases. Elemental composition of aerosol particles collected from free atmosphere contained signatures of aged pollution with heavy metals, carbonaceous particles and radioactive elements. Cloud processed aerosols were also noted in the neighborhood of deep convective clouds. Shallow and deep cumulus clouds developing in the haze layer revealed distinct dropsize distributions. Shallow cumulus clouds embedded in the haze layer showed narrow droplet size distribution and were narrower than the ones observed for premonsoon conditions. Deep cumulus tops in the neighborhood of rapidly developing convection showed broad, bimodal droplet size distribution attributing to droplet evaporation and entrainment effects. Aerosol sampling near these cloud tops showed aggregates of particles that are internally mixed. © 2019 Elsevier B.V.
英文关键词	Aerosol dome; CAIPEEX; Droplet spectrum; EDX; Haze; TEM
语种	英语
scopus关键词	Aerosols; Aggregates; Atmospheric thermodynamics; Boundary layers; Clouds; Domes; Drops; Energy dispersive spectroscopy; Heavy metals; Light scattering; Precipitation (meteorology); Radioactive elements; Size distribution; Transmission electron microscopy; CAIPEEX; Deep convective clouds; Drop size distribution; Droplet size distributions; Droplet spectrums; Haze; Precipitation enhancement; Single-particle analysis; Air pollution; aerosol; boundary layer; cloud droplet; cumulus; haze; monsoon; size distribution; transmission electron microscopy; vertical profile; Gangetic Plain
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/162268
作者单位	Indian Institute of Tropical Meteorology, Pune, Maharashtra, India; National Centre for Earth Science Studies, Thiruvananthapuram, India; Gadanki, Andhra Pradesh, India; International and Inter University Centre for Nanoscience and Nanotechnology, Kottayam, Kerala, India
推荐引用方式 GB/T 7714	Varghese M.,Prabha T.V.,Murugavel P.,et al. Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study[J],2019,220.
APA	Varghese M..,Prabha T.V..,Murugavel P..,Anu A.S..,Resmi E.A..,...&Bhavani Kumar Y..(2019).Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study.Atmospheric Research,220.
MLA	Varghese M.,et al."Aerosol and cloud droplet characteristics over Ganges Valley during break phase of monsoon: A case study".Atmospheric Research 220(2019).