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dc.contributor.authorMa, Shaoxiang
dc.contributor.authorCheng, He
dc.contributor.authorLi, Jiacheng
dc.contributor.authorXu, Maoyuan
dc.contributor.authorLiu, Dawei
dc.contributor.authorOstrikov, Kostya
dc.date.accessioned2021-01-07T03:35:19Z
dc.date.available2021-01-07T03:35:19Z
dc.date.issued2020
dc.identifier.issn1680-7316
dc.identifier.doi10.5194/acp-20-11717-2020
dc.identifier.urihttp://hdl.handle.net/10072/400776
dc.description.abstractArtificial rain is explored as a remedy for climate change caused farmland drought and bushfires. Increasing the ion density in the open air is an efficient way to generate charged nuclei from atmospheric aerosols and induce precipitation or eliminate fog. Here we report on the development of a large commercial-installation-scale atmospheric ion generator based on corona plasma discharges, experimental monitoring, and numerical modeling of the parameters and range of the atmospheric ions, as well as the application of the generated ions to produce charged aerosols and induce precipitation at the scale of a large cloud chamber. The coverage area of the ions generated by the large corona discharge installation with the 7.2 km long wire electrode and applied voltage of −90 kV is studied under prevailing weather conditions including wind direction and speed. By synergizing over 300 000 localized corona discharge points, we demonstrate a substantial decrease in the decay of ions compared to a single corona discharge point in the open air, leading to large-scale (30 m ×23 m ×90 m) ion coverage. Once aerosols combine with the generated ions, charged nuclei are produced. Higher wind speed has led to larger areas covered by the plasma-generated ions. The cloud chamber experiments (relative humidity 130±10  %) suggest that charged aerosols generated by ions with a density of ∼104 cm−3 can accelerate the settlement of moisture by 38 %. These results are promising for the development of large-scale installations for the effective localized control of atmospheric phenomena.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherCopernicus Publications
dc.relation.ispartofpagefrom11717
dc.relation.ispartofpageto11727
dc.relation.ispartofissue20
dc.relation.ispartofjournalAtmospheric Chemistry and Physics
dc.relation.ispartofvolume20
dc.subject.fieldofresearchAstronomical sciences
dc.subject.fieldofresearchSpace sciences
dc.subject.fieldofresearchAtmospheric sciences
dc.subject.fieldofresearchcode5101
dc.subject.fieldofresearchcode5109
dc.subject.fieldofresearchcode3701
dc.subject.keywordsScience & Technology
dc.subject.keywordsLife Sciences & Biomedicine
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsEnvironmental Sciences
dc.subject.keywordsMeteorology & Atmospheric Sciences
dc.titleLarge-scale ion generation for precipitation of atmospheric aerosols
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationMa, S; Cheng, H; Li, J; Xu, M; Liu, D; Ostrikov, K, Large-scale ion generation for precipitation of atmospheric aerosols, Atmospheric Chemistry and Physics, 2020, 20 (20), pp. 11717-11727
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/
dc.date.updated2020-12-23T00:34:17Z
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© Author(s) 2020. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorOstrikov, Ken


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