Explosive cyclones occurred between 2010 and 2020 in the South Atlantic under the perspective of two detection schemes

Autor: HUGO N. ANDRADE, MÁRIO FRANCISCO L. DE QUADRO, ANDRÉ B. NUNES, FABRÍCIO S.C. DE OLIVEIRA, VILSON D. DE AVILA, MATEUS S. TEIXEIRA, RITA DE CÁSSIA M. ALVES

Publikováno v: Anais da Academia Brasileira de Ciências, Vol 96, Iss suppl 1 (2024)

Abstract Under two detection schemes, this study analyzes one of the most destructive weather systems - the explosive cyclones - in the South Atlantic, from 2010 to 2020. Then, two methods are presented to study these systems: the Observational Metho

Externí odkaz: https://doaj.org/article/72242183afbf468b82604cdbbb36177d

Comparing explosive cyclogenesis cases of different intensities occurred in Southern Atlantic

Autor: VILSON D. DE AVILA, ANDRÉ B. NUNES, RITA DE CÁSSIA M. ALVES

Publikováno v: Anais da Academia Brasileira de Ciências, Vol 93, Iss 3 (2021)

Abstract Six events of explosive cyclogenesis occurred in the south Atlantic were compared using reanalysis data and satellite water vapor imagery. Cases of different intensities (weak, moderate and strong) occurred during 2014 summer season and 2012

Externí odkaz: https://doaj.org/article/a098ca6f322e4357b6c37686171b9659

Morning boundary layer turbulent kinetic energy by theoretical models

Autor: Umberto Rizza, Antonio G. Goulart, Gervásio Annes Degrazia, P. Satyamurty, H. F. Campos Velho, André B. Nunes

Publikováno v: Boundary-layer meteorology (Dordrecht. Online) 134 (2010): 23–39. doi:10.1007/s10546-009-9432-0
info:cnr-pdr/source/autori:Nunes A.B., H.F.Campos Velho, P.Satyamurty, G.A.Degrazia, A.Goulart, U.Rizza/titolo:Morning boundary layer turbulent kinetic energy by theoretical models/doi:10.1007%2Fs10546-009-9432-0/rivista:Boundary-layer meteorology (Dordrecht. Online)/anno:2010/pagina_da:23/pagina_a:39/intervallo_pagine:23–39/volume:134

A major factor that influences the diurnal variation of turbulent kinetic energy (TKE) is the sensible heat flux at the surface. Here, the TKE variations are analysed during the morning transition phase because subsequent to the neutral or stable str

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37bb845a44579e792cd682ef6a196b35

Employing Heisenberg´s turbulent spectral transfer theory to parameterize sub-filter scales in LES models

Autor: Haroldo F. de Campos Velho, André B. Nunes, Jonas C. Carvalho, Otávio C. Acevedo, Gervásio Annes Degrazia, Umberto Rizza, Prakki Satyamurty

Publikováno v: Atmospheric environment (1994) 41 (2007): 7059–7068. doi:10.1016/j.atmosenv.2007.05.004
info:cnr-pdr/source/autori:Gervásio A. Degrazia, André B. Nunes, Prakki Satyamurty, Otávio C. Acevedo, Haroldo F. de Campos Velho, Umberto Rizza, Jonas C. Carvalho;/titolo:Employing Heisenberg´s turbulent spectral transfer theory to parameterize sub-filter scales in LES models/doi:10.1016%2Fj.atmosenv.2007.05.004/rivista:Atmospheric environment (1994)/anno:2007/pagina_da:7059/pagina_a:7068/intervallo_pagine:7059–7068/volume:41

A turbulent subfilter viscosity for large eddy simulation (LES) models is proposed, based on Heisenberg's mechanism of energy transfer. Such viscosity is described in terms of a cutoff wave number, leading to relationships for the grid mesh spacing,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::261fb8b1864fe82cf5ee3850a1fc60e7
http://www.cnr.it/prodotto/i/200255