Análise de variações na radiação gama natural associada ao radônio e influência do campo elétrico atmosférico e efeitos meteorológicos

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dc.contributor.advisorRaulin, Jean Pierre
dc.contributor.advisor-co1Anaya, José Carlos Tacza
dc.contributor.advisor-co1Latteshttp://lattes.cnpq.br/4951441470422412por
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/7285541024719915por
dc.contributor.authorOliveira, Rafael Ricardo Rosa de
dc.creator.Latteshttp://lattes.cnpq.br/7591003439973545por
dc.date.accessioned2020-10-08T13:23:23Z
dc.date.accessioned2020-12-07T15:09:07Z
dc.date.available2020-12-07T15:09:07Z
dc.date.issued2020-08-17
dc.description.abstractNatural Gamma radiation is mainly produced during the interaction of energetic cosmic rays in the Earth’s atmosphere, the decay of radionucleides from the soil and transient energetic atmospheric phenomena. The variability of natural gama radiation and its relation to the atmospheric electric field is important for a better understanding of phenomena like thunderstorms and lightning. In this thesis, it is analyzed the natural gamma ray radiation for different meteorological conditions and verify its relation with the atmospheric electric field. The comparison is done for fair weather conditions on different timescale: annual, seasonal and monthly variations. During disturbed weather conditions it is reported and discussed events of abnormal and impulsive natural gamma radiation. The data were extracted from the El Leoncito Observatory in Argentina from April, 2018 to February, 2019. In fair weather averages, it was possible to obtain a good correlation between the local atmospheric electric field curve and the global electric field curve (Carnegie curve) with a correlation coefficient of R = 0.94. In the curves of natural gamma radiation, a pattern was strongly dependent on the levels of atmospheric turbulence, with maximum radiation occurring close to sunrise and minimum occurring close to sunset. On days when there were abnormal variations in natural gamma radiation, meteorological conditions were analyzed and all events are generally preceded by thunderstorms and may also be accompanied by precipitationeng
dc.description.sponsorshipFundo Mackenzie de Pesquisapor
dc.formatapplication/pdf*
dc.identifier.citationOLIVEIRA, Rafael Ricardo Rosa de. Análise de variações na radiação gama natural associada ao radônio e influência do campo elétrico atmosférico e efeitos meteorológicos. 2020. 112 f. Dissertação (Ciências e Aplicações Geoespaciais) - Universidade Presbiteriana Mackenzie, São paulo, 2020.por
dc.identifier.urihttp://dspace.mackenzie.br/handle/10899/26594
dc.keywordsatmospheric electric fieldeng
dc.keywordsglobal atmospheric electric circuiteng
dc.keywordsCarnegie curveeng
dc.keywordscamma radiationeng
dc.keywordsradoneng
dc.languageporpor
dc.publisherUniversidade Presbiteriana Mackenziepor
dc.rightsAcesso Abertopor
dc.rights.urihttp://creativecommons.org/licenses/by-nd/4.0/
dc.subjectcampo elétrico atmosféricopor
dc.subjectcircuíto elétrico atmosférico globalpor
dc.subjectcurva de Carnegiepor
dc.subjectradiação gamapor
dc.subjectradôniopor
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOFISICApor
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::OCEANOGRAFIApor
dc.titleAnálise de variações na radiação gama natural associada ao radônio e influência do campo elétrico atmosférico e efeitos meteorológicospor
dc.typeDissertaçãopor
local.contributor.board1Szpigel, Sérgio
local.contributor.board1Latteshttp://lattes.cnpq.br/2578978663165124por
local.contributor.board2Makhmutov, Vladimir
local.publisher.countryBrasilpor
local.publisher.departmentEscola de Engenharia Mackenzie (EE)por
local.publisher.initialsUPMpor
local.publisher.programCiências e Aplicações Geoespaciaispor
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