Perfis verticais da densidade e da temperatura em uma atmosfera de Van der Waals na região metropolitana de Natal-RN, Brasil

Silva, Douglas do Nascimento; Silva, Isamara de Mendonça; Medeiros, Deusdedit Monteiro

Perfis verticais da densidade e da temperatura em uma atmosfera de Van der Waals na região metropolitana de Natal-RN, Brasil

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dc.contributor.author	Silva, Douglas do Nascimento
dc.contributor.author	Silva, Isamara de Mendonça
dc.contributor.author	Medeiros, Deusdedit Monteiro
dc.date.accessioned	2020-12-14T20:48:36Z
dc.date.available	2020-12-14T20:48:36Z
dc.date.issued	2019-12-23
dc.description.resumo	The constants a and b of the Van der Waals state equation for atmosphere are determined from the concentration, critical temperature and critical pressure of the air components, using the Kay mixing rule. The radiosonde measures atmospheric pressure p, temperature T and other meteorological variables at various altitude levels. Therefore, the density of the atmosphere can be calculated based on the parameters a, b, p and T. In this study, the diurnal and nocturnal vertical profiles of the monthly average density, in the atmosphere of metropolitan region of Natal-RN, Brazil, from 2010 to 2017, were constructed considering the atmospheric system as an ideal gas and as a Van der Waals gas. The vertical profiles of the mean density difference between these two approaches and the temperature were also shown. In both scenarios, the radiosonde data of the atmosphere of this region for the calculation of the density were used, with the altitude ranging from 50m to 10km, interpolated every 10m. It has verified that the density of the atmosphere as a Van der Waals gas presents values higher than the density of air as an ideal gas at low altitudes. In both cases, densities tend therefore to have the same values when altitude increases. It has also showed a strong dependence on density related to temperature, such that the densities presented higher values in the colder months	pt_BR
dc.identifier.citation	SILVA, Isamara de Mendonça; SILVA, Douglas do Nascimento; MEDEIROS, Deusdedit Monteiro. Perfis verticais da densidade e da temperatura em uma atmosfera de Van der Waals na região metropolitana de Natal-RN, Brasil Holos, [S.L.], v. 2, p. 1-10, 23 dez. 2019. Disponível em: http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/8023. Acesso em: 06 out. 2020. http://dx.doi.org/10.15628/holos.2019.8023.	pt_BR
dc.identifier.doi	10.15628/holos.2019.8023
dc.identifier.issn	1807-1600
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30978
dc.language	en	pt_BR
dc.publisher	Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte	pt_BR
dc.subject	Van der Waals	pt_BR
dc.subject	Atmosphere	pt_BR
dc.subject	Radiosonde	pt_BR
dc.subject	Vertical profile	pt_BR
dc.subject	Density	pt_BR
dc.title	Perfis verticais da densidade e da temperatura em uma atmosfera de Van der Waals na região metropolitana de Natal-RN, Brasil	pt_BR
dc.title.alternative	Vertical profiles of density and temperature in a Van der Waals atmosphere in metropolitan region of Natal-RN, Brazil	pt_BR
dc.type	article	pt_BR