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The effect of recombination and attachment on meteor radar diffusion coefficient profiles

Cited 15 time in wos
Cited 16 time in scopus
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dc.contributor.authorLee, Changsup-
dc.contributor.authorKim, Jeong-Han-
dc.contributor.authorKim, Yong Ha-
dc.contributor.authorI. M. Reid-
dc.contributor.authorJ. P. Younger-
dc.date.accessioned2018-03-20T13:41:31Z-
dc.date.available2018-03-20T13:41:31Z-
dc.date.issued2013-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/6115-
dc.description.abstractEstimates of the ambipolar diffusion coefficient produced using meteor radar echo decay times display an increasing trend below 80-85 km, which is inconsistent with a diffusion-only theory of the evolution of meteor trails. Data from the 33 MHz meteor radar at King Sejong Station, Antarctica has been compared with observations from the Aura EOS MLS satellite instrument. It has been found that the height at which the diffusion coefficient gradient reverses follows the height of a constant neutral atmospheric density surface. Numerical simulations of meteor trail diffusion including dissociative recombination with atmospheric ions and three-body attachment of free electrons to neutral molecules indicate that three-body attachment is responsible for the distortion of meteor radar diffusion coefficient profiles at heights below 90 km, including the gradient reversal below 80-85 km. Further investigation has revealed that meteor trails with low initial electron line density produce decay times more consistent with a diffusion-only model of meteor trail evolution.he 33 MHz meteor radar at King Sejong Station, Antarctica has been compared with observations from the Aura EOS MLS satellite instrument. It has been found that the height at which the diffusion coefficient gradient reverses follows the height of a constant neutral atmospheric density surface. Numerical simulations of meteor trail diffusion including dissociative recombination with atmospheric ions and three-body attachment of free electrons to neutral molecules indicate that three-body attachment is responsible for the distortion of meteor radar diffusion coefficient profiles at heights below 90 km, including the gradient reversal below 80-85 km. Further investigation has revealed that meteor trails with low initial electron line density produce decay times more consistent with a diffusion-only model of meteor trail evolution.-
dc.languageEnglish-
dc.publisherAmerican Geophysical Union-
dc.subjectMeteorology & Atmospheric Sciences-
dc.titleThe effect of recombination and attachment on meteor radar diffusion coefficient profiles-
dc.title.alternative유성흔 확산 계수에서의 이온-전자 결합과 중성대기-전자 부착 효과-
dc.typeArticle-
dc.identifier.bibliographicCitationLee, Changsup, et al. 2013. "The effect of recombination and attachment on meteor radar diffusion coefficient profiles". <em>JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES</em>, 118: 3037-3043.-
dc.citation.titleJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES-
dc.citation.volume118-
dc.identifier.doi10.1002/jgrd.50315-
dc.citation.startPage3037-
dc.citation.endPage3043-
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2011:12.35-
dc.subject.keyworddiffusion-
dc.subject.keywordmeteors-
dc.subject.keywordradar-
dc.subject.keywordrecombination-
dc.identifier.localId2013-0236-
dc.identifier.scopusid2-s2.0-84882344252-
dc.identifier.wosid000319618300026-
Appears in Collections  
2012-2013, Reconstruction and Observation of Components for the Southern and Northern Annular Mode to Investigate the Cause of Polar Climate Change (12-13) / Kim, Seong-Joong
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