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Impact of solar and geomagnetic activities on total column ozone in China
Chidinma, Okoro Eucharia1,2; Yan, Yi-hua1,3; Yin, Zhang1; Kingsley, Okoro Ugochukwu4; Nneka, Okeke Francisca2
2021-10-15
Source PublicationJOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
ISSN1364-6826
Volume223Pages:12
AbstractDynamic impacts on sunspot number (SSN), solar radio flux at 10.7 cm (F10.7) and amplitude antipodal (aa) index influencing long-term trends of total column ozone (TCO) obtained from three stations; Xianghe (39.975 degrees N, 116.37 degrees E), Linan (30.3 degrees N, 119.73 degrees E), and Kunming (25.03 degrees N, 102.683 degrees E) over China have been studied. Descriptive, regression and neural network training techniques are used from 1980 to 2018. The annual mean TCO concentrations are 333.61 +/- 1.15 DU, 280.87 +/- 0.58 DU, and 260.33 +/- 0.49 DU at Xianghe, Linan, and Kunming stations, respectively. The mean monthly peak TCO values are -417.13 DU (March), 316.79 DU (April), and 291.03 DU (April) at Xianghe, Linan, and Kunming, respectively. Irrespective of the decreasing seasonal trend during spring at Xianghe, the springtime TCO amount is greater than the TCO values in other seasons at all stations. Our analyses show direct forcing of SSN, F10.7, and aa on TCO changes throughout the different periods considered. At Xianghe, the value of r ranges between 0.09 and 0.48 and the p-value < 0.05 whereas the most contributing factor is aa index (about 40 %) to ozone enhancement. There is a dramatic improvement of the impact of the quasi-biennial oscillation (QBO)-modulated (70 hPa and 50 hPa) SSN, F10.7, and aa on TCO during winter in all the stations particularly the aa, which appreciated from -40 % to 66 %. Ozone is affected negatively during descending and low solar cycle (SC) phases whereas it enhances during ascending and high SC phases with 30 hPa QBO as the most active force of enhancement. Our finding is a profitable tool for atmospheric model development, which could be used to predict future phenomena.
KeywordOzone column SSN F10 7 Neural network QBO SC phases
Funding OrganizationNSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC
DOI10.1016/j.jastp.2021.105738
WOS KeywordINTERANNUAL VARIABILITY ; SURFACE OZONE ; CIRCULATION ; POLLUTION ; WIND ; ATMOSPHERE ; RAINFALL ; WEATHER ; CLIMATE ; STORMS
Language英语
Funding ProjectNSFC[11790301]
Funding OrganizationNSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC ; NSFC
WOS Research AreaGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS SubjectGeochemistry & Geophysics ; Meteorology & Atmospheric Sciences
WOS IDWOS:000693446600006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/75596
Collection中国科学院国家天文台
Corresponding AuthorChidinma, Okoro Eucharia
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China
2.Univ Nigeria, Dept Phys & Astron, Nsukka, Nigeria
3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
4.Imo State Univ, Dept Phys, Atmospher Phys Grp, Owerri, Nigeria
Recommended Citation
GB/T 7714
Chidinma, Okoro Eucharia,Yan, Yi-hua,Yin, Zhang,et al. Impact of solar and geomagnetic activities on total column ozone in China[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2021,223:12.
APA Chidinma, Okoro Eucharia,Yan, Yi-hua,Yin, Zhang,Kingsley, Okoro Ugochukwu,&Nneka, Okeke Francisca.(2021).Impact of solar and geomagnetic activities on total column ozone in China.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,223,12.
MLA Chidinma, Okoro Eucharia,et al."Impact of solar and geomagnetic activities on total column ozone in China".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 223(2021):12.
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