Orographic effects related to deep convection events over the Andes region

In this work, we analyze a set of 39 storms which took place between 2006 and 2011 over the South of Mendoza, Argentina. This is a semiarid region situated at mid-latitudes (roughly between 32S and 36S) at the east of the highest Andes tops which constitutes a natural laboratory where diverse source...

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Autores principales:	Hierro, Rodrigo Federico, Llamedo Soria, Pablo Martín, De La Torre, Alejandro Eduardo, Alexander, Pedro M.
Publicado:	2013
Materias:	Andes Mendoza Mountain waves Storms Convective available potential energies Convective inhibition Initial and boundary conditions Mesoscale model simulation Mountain wave Weather research and forecasting Arid regions Atmospheric turbulence Computer simulation Kinetics Radar Weather forecasting Natural convection atmospheric convection boundary condition gravity wave kinetic energy mesoscale meteorology midlatitude environment orographic effect semiarid region storm weather forecasting Argentina
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v120-121_n_p216_Hierro http://hdl.handle.net/20.500.12110/paper_01698095_v120-121_n_p216_Hierro
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01698095_v120-121_n_p216_Hierro
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spelling	paper:paper_01698095_v120-121_n_p216_Hierro2023-06-08T15:18:31Z Orographic effects related to deep convection events over the Andes region Hierro, Rodrigo Federico Llamedo Soria, Pablo Martín De La Torre, Alejandro Eduardo Alexander, Pedro M. Andes Mendoza Mountain waves Storms Andes Convective available potential energies Convective inhibition Initial and boundary conditions Mendoza Mesoscale model simulation Mountain wave Weather research and forecasting Arid regions Atmospheric turbulence Computer simulation Kinetics Radar Storms Weather forecasting Natural convection atmospheric convection boundary condition gravity wave kinetic energy mesoscale meteorology midlatitude environment orographic effect semiarid region storm weather forecasting Andes Argentina Mendoza In this work, we analyze a set of 39 storms which took place between 2006 and 2011 over the South of Mendoza, Argentina. This is a semiarid region situated at mid-latitudes (roughly between 32S and 36S) at the east of the highest Andes tops which constitutes a natural laboratory where diverse sources of gravity waves usually take place. We consider a cultivated subregion near San Rafael district, where every summer a systematic generation of deep convection events is registered. We propose that the lift mechanism required to raise a parcel to its level of free convection is partially supplied by mountain waves (MWs). From Weather Research and Forecasting (WRF) mesoscale model simulations and radar network data, we calculate the evolution of convective available potential energy and convective inhibition indices during the development of each storm. Global Final Analysis is used to construct initial and boundary conditions. Convective inhibition indices are compared with the vertical kinetic energy capable of being supplied by the MWs, in order to provide a rough estimation of this possible triggering mechanism. Vertical velocity is chosen as an appropriate dynamical variable to evidence the presence of MWs in the vicinity of each detected first radar echo. After establishing a criterion based on a previous work to represent MWs, the 39 storms are split into two subsets: with and without the presence of MWs. 12 cases with considerable MWs amplitude are retained and considered. Radar data differences between the two samples are analyzed and the simulated MWs are characterized. © 2012 Elsevier B.V. Fil:Hierro, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Llamedo, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:de la Torre, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alexander, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v120-121_n_p216_Hierro http://hdl.handle.net/20.500.12110/paper_01698095_v120-121_n_p216_Hierro
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Andes Mendoza Mountain waves Storms Andes Convective available potential energies Convective inhibition Initial and boundary conditions Mendoza Mesoscale model simulation Mountain wave Weather research and forecasting Arid regions Atmospheric turbulence Computer simulation Kinetics Radar Storms Weather forecasting Natural convection atmospheric convection boundary condition gravity wave kinetic energy mesoscale meteorology midlatitude environment orographic effect semiarid region storm weather forecasting Andes Argentina Mendoza
spellingShingle	Andes Mendoza Mountain waves Storms Andes Convective available potential energies Convective inhibition Initial and boundary conditions Mendoza Mesoscale model simulation Mountain wave Weather research and forecasting Arid regions Atmospheric turbulence Computer simulation Kinetics Radar Storms Weather forecasting Natural convection atmospheric convection boundary condition gravity wave kinetic energy mesoscale meteorology midlatitude environment orographic effect semiarid region storm weather forecasting Andes Argentina Mendoza Hierro, Rodrigo Federico Llamedo Soria, Pablo Martín De La Torre, Alejandro Eduardo Alexander, Pedro M. Orographic effects related to deep convection events over the Andes region
topic_facet	Andes Mendoza Mountain waves Storms Andes Convective available potential energies Convective inhibition Initial and boundary conditions Mendoza Mesoscale model simulation Mountain wave Weather research and forecasting Arid regions Atmospheric turbulence Computer simulation Kinetics Radar Storms Weather forecasting Natural convection atmospheric convection boundary condition gravity wave kinetic energy mesoscale meteorology midlatitude environment orographic effect semiarid region storm weather forecasting Andes Argentina Mendoza
description	In this work, we analyze a set of 39 storms which took place between 2006 and 2011 over the South of Mendoza, Argentina. This is a semiarid region situated at mid-latitudes (roughly between 32S and 36S) at the east of the highest Andes tops which constitutes a natural laboratory where diverse sources of gravity waves usually take place. We consider a cultivated subregion near San Rafael district, where every summer a systematic generation of deep convection events is registered. We propose that the lift mechanism required to raise a parcel to its level of free convection is partially supplied by mountain waves (MWs). From Weather Research and Forecasting (WRF) mesoscale model simulations and radar network data, we calculate the evolution of convective available potential energy and convective inhibition indices during the development of each storm. Global Final Analysis is used to construct initial and boundary conditions. Convective inhibition indices are compared with the vertical kinetic energy capable of being supplied by the MWs, in order to provide a rough estimation of this possible triggering mechanism. Vertical velocity is chosen as an appropriate dynamical variable to evidence the presence of MWs in the vicinity of each detected first radar echo. After establishing a criterion based on a previous work to represent MWs, the 39 storms are split into two subsets: with and without the presence of MWs. 12 cases with considerable MWs amplitude are retained and considered. Radar data differences between the two samples are analyzed and the simulated MWs are characterized. © 2012 Elsevier B.V.
author	Hierro, Rodrigo Federico Llamedo Soria, Pablo Martín De La Torre, Alejandro Eduardo Alexander, Pedro M.
author_facet	Hierro, Rodrigo Federico Llamedo Soria, Pablo Martín De La Torre, Alejandro Eduardo Alexander, Pedro M.
author_sort	Hierro, Rodrigo Federico
title	Orographic effects related to deep convection events over the Andes region
title_short	Orographic effects related to deep convection events over the Andes region
title_full	Orographic effects related to deep convection events over the Andes region
title_fullStr	Orographic effects related to deep convection events over the Andes region
title_full_unstemmed	Orographic effects related to deep convection events over the Andes region
title_sort	orographic effects related to deep convection events over the andes region
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v120-121_n_p216_Hierro http://hdl.handle.net/20.500.12110/paper_01698095_v120-121_n_p216_Hierro
work_keys_str_mv	AT hierrorodrigofederico orographiceffectsrelatedtodeepconvectioneventsovertheandesregion AT llamedosoriapablomartin orographiceffectsrelatedtodeepconvectioneventsovertheandesregion AT delatorrealejandroeduardo orographiceffectsrelatedtodeepconvectioneventsovertheandesregion AT alexanderpedrom orographiceffectsrelatedtodeepconvectioneventsovertheandesregion
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Orographic effects related to deep convection events over the Andes region

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