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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Ilha Grande Bay is located in Angra dos Reis, Rio de Janeiro State, Brazil. The area is characterized by different land cover, complex topography and proximity to the Atlantic Ocean. These aspects make it susceptible to thermally and dynamically induced atmospheric circulations such as those associated with valley/mountain and land/sea breeze systems, among others. The Almirante Álvaro Alberto Nuclear Complex (CNAAA) is located in this region, with a total of two nuclear power plants (NPPs) in operation in the Brazilian territory, Angra I and Angra II. Therefore, knowledge of local atmospheric circulation has become a matter of national and international security. Considering the importance of the meteorological security tool as a support for licensing, installation, routine operation and nuclear accident mitigation, the main aim of this study is the development of combined strategies of environmental statistical modeling in the analysis of thermally and dynamically driven atmospheric circulations over mountainous and coastal environments. We identified and hierarchized the influence of the thermally and mechanically driven forcing on the wind regime and stability conditions in the coastal atmospheric boundary layer over the complex topography region. A meteorological network of ground-based instruments was used along with physiographic information for the observational characterization of the atmospheric patterns in the spatial and time–frequency domain. The predominant wind directions and intensity are attributed to the combined action of multiscale weather systems, notably, the valley/mountain and continent/ocean breeze circulations, the forced channeling due to valley axis orientation, the influence of the synoptic scale systems and atmospheric thermal tide. The observational investigation of the combined influence of terrain effects and meteorological systems aimed to understand the local atmospheric circulation serves as support for safety protocols of the NPPs, contemplating operation and environmental management. The importance of the study for the adequacy and skill evaluation of computational modeling systems for atmospheric dispersion of pollutants such as radionuclide and conventional contaminants can be also highlighted, in order that such systems are used as tools for environmental planning and managing nuclear operations, particularly those located in regions over mountainous and coastal environments with a heterogeneous atmospheric boundary layer.

Details

Title
Thermally and Dynamically Driven Atmospheric Circulations over Heterogeneous Atmospheric Boundary Layer: Support for Safety Protocols and Environment Management at Nuclear Central Areas
Author
Larissa de Freitas Ramos Jacinto 1   VIAFID ORCID Logo  ; Gomes Pimentel, Luiz Claudio 1   VIAFID ORCID Logo  ; José Francisco de Oliveira Júnior 2 ; Ian Cunha D’Amato Viana Dragaud 3   VIAFID ORCID Logo  ; Silva, Corbiniano 3   VIAFID ORCID Logo  ; William Cossich Marcial de Farias 4   VIAFID ORCID Logo  ; Marton, Edilson 1 ; Luiz Paulo de Freitas Assad 5 ; Jesus Salvador Perez Guerrero 6 ; Paulo Fernando Lavalle Heilbron Filho 6 ; Landau, Luiz 3 

 Graduate Program in Meteorology, Federal University of Rio de Janeiro (UFRJ), Rua Athos da Silveira Ramos, 274, CCMN-Bloco G1, Cidade Universitária-Ilha do Fundão, Rio de Janeiro-RJ 21941-909, Brazil; [email protected] (L.d.F.R.J.); [email protected] (E.M.); [email protected] (L.P.d.F.A.) 
 Institute of Atmospheric Sciences (ICAT), Federal University of Alagoas (UFAL), Av. Paulo Holanda, 19-Cidade Universitária, Maceió, Alagoas 57072-260, Brazil; [email protected] 
 Civil Engineering Program, 149, Centro de Tecnologia-Bloco B, Federal University of Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, Sala 101-Ilha do Fundão Caixa Postal 68506, Rio de Janeiro-RJ 21941-909, Brazil; [email protected] (I.C.D.V.D.); [email protected] (C.S.); [email protected] (L.L.) 
 Department of Physics and Astronomy, Alma Mater Studiorum-Università di Bologna, Via Irnerio 46, 40126 Bologna, Italy; [email protected] 
 Graduate Program in Meteorology, Federal University of Rio de Janeiro (UFRJ), Rua Athos da Silveira Ramos, 274, CCMN-Bloco G1, Cidade Universitária-Ilha do Fundão, Rio de Janeiro-RJ 21941-909, Brazil; [email protected] (L.d.F.R.J.); [email protected] (E.M.); [email protected] (L.P.d.F.A.); Civil Engineering Program, 149, Centro de Tecnologia-Bloco B, Federal University of Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, Sala 101-Ilha do Fundão Caixa Postal 68506, Rio de Janeiro-RJ 21941-909, Brazil; [email protected] (I.C.D.V.D.); [email protected] (C.S.); [email protected] (L.L.) 
 Brazilian Nuclear Energy Commission (CNEN), Rua General Severiano, 84, Botafogo, Rio de Janeiro-RJ 22290-901, Brazil; [email protected] (J.S.P.G.); [email protected] (P.F.L.H.F.) 
First page
1321
Publication year
2021
Publication date
2021
Publisher
MDPI AG
e-ISSN
20734433
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2584305624
Copyright
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.