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Corona discharge induced snow formation in a cloud chamber.

ABSTRACT: Artificial rainmaking is in strong demand especially in arid regions. Traditional methods of seeding various Cloud Condensation Nuclei (CCN) into the clouds are costly and not environment friendly. Possible solutions based on ionization were proposed more than 100 years ago but there is still a lack of convincing verification or evidence. In this report, we demonstrated for the first time the condensation and precipitation (or snowfall) induced by a corona discharge inside a cloud chamber. Ionic wind was found to have played a more significant role than ions as extra CCN. In comparison with another newly emerging femtosecond laser filamentation ionization method, the snow precipitation induced by the corona discharge has about 4 orders of magnitude higher wall-plug efficiency under similar conditions.

SUBMITTER: Ju J

PROVIDER: S-EPMC5603531 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Corona discharge induced snow formation in a cloud chamber.

Ju Jingjing J Wang Tie-Jun TJ Li Ruxin R Du Shengzhe S Sun Haiyi H Liu Yonghong Y Tian Ye Y Bai Yafeng Y Liu Yaoxiang Y Chen Na N Wang Jingwei J Wang Cheng C Liu Jiansheng J Chin S L SL Xu Zhizhan Z

Scientific reports 20170918 1

Artificial rainmaking is in strong demand especially in arid regions. Traditional methods of seeding various Cloud Condensation Nuclei (CCN) into the clouds are costly and not environment friendly. Possible solutions based on ionization were proposed more than 100 years ago but there is still a lack of convincing verification or evidence. In this report, we demonstrated for the first time the condensation and precipitation (or snowfall) induced by a corona discharge inside a cloud chamber. Ionic ...[more]

PMID: 28924141

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