Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile

In this paper we present a high resolution analysis, using the WRF model, of a convective system initiation which has developed over the Sierras de Córdoba on the afternoon of October 29, 2013. It affected the region with strong wind gusts, heavy rain and hail fall. In this particular case, the stor...

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Autores principales:	Repinaldo, H.F.B., Nicolini, M., Skabar, Y.G.
Formato:	JOUR
Materias:	Mountain breeze Mountain waves Orogenic convective initiation WRF
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0325187X_v42_n2_p23_Repinaldo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0325187X_v42_n2_p23_Repinaldo
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spelling	todo:paper_0325187X_v42_n2_p23_Repinaldo2023-10-03T15:23:20Z Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile Repinaldo, H.F.B. Nicolini, M. Skabar, Y.G. Mountain breeze Mountain waves Orogenic convective initiation WRF In this paper we present a high resolution analysis, using the WRF model, of a convective system initiation which has developed over the Sierras de Córdoba on the afternoon of October 29, 2013. It affected the region with strong wind gusts, heavy rain and hail fall. In this particular case, the storm was developed in an environment characterized by the presence of low pressure near the Cordillera and the low level jet, and moisture convergence over Córdoba. The system initiation was mainly favoured by the presence of mountain breezes, which in its diurnal phase helped to bring moisture up to the top of the Sierras, and to produce the necessary convergence for the updrafts to reach the LFC. The presence of mountain waves and their interaction with waves generated by the convection itself, also have an important role in the development of deep convection. The sensitivity experiments showed that the orogenic initiation is very sensitive to the amount of moisture reaching the top, to the intensity of the convergence produced by the breeze and to the thickness between the ground and the LFC. © 2017 Centro Argentino de Meteorologos. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0325187X_v42_n2_p23_Repinaldo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Mountain breeze Mountain waves Orogenic convective initiation WRF
spellingShingle	Mountain breeze Mountain waves Orogenic convective initiation WRF Repinaldo, H.F.B. Nicolini, M. Skabar, Y.G. Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
topic_facet	Mountain breeze Mountain waves Orogenic convective initiation WRF
description	In this paper we present a high resolution analysis, using the WRF model, of a convective system initiation which has developed over the Sierras de Córdoba on the afternoon of October 29, 2013. It affected the region with strong wind gusts, heavy rain and hail fall. In this particular case, the storm was developed in an environment characterized by the presence of low pressure near the Cordillera and the low level jet, and moisture convergence over Córdoba. The system initiation was mainly favoured by the presence of mountain breezes, which in its diurnal phase helped to bring moisture up to the top of the Sierras, and to produce the necessary convergence for the updrafts to reach the LFC. The presence of mountain waves and their interaction with waves generated by the convection itself, also have an important role in the development of deep convection. The sensitivity experiments showed that the orogenic initiation is very sensitive to the amount of moisture reaching the top, to the intensity of the convergence produced by the breeze and to the thickness between the ground and the LFC. © 2017 Centro Argentino de Meteorologos.
format	JOUR
author	Repinaldo, H.F.B. Nicolini, M. Skabar, Y.G.
author_facet	Repinaldo, H.F.B. Nicolini, M. Skabar, Y.G.
author_sort	Repinaldo, H.F.B.
title	Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
title_short	Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
title_full	Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
title_fullStr	Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
title_full_unstemmed	Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile
title_sort	convective storm initiation over the sierras de córdoba and sensitivity to changes in the orographic profile
url	http://hdl.handle.net/20.500.12110/paper_0325187X_v42_n2_p23_Repinaldo
work_keys_str_mv	AT repinaldohfb convectivestorminitiationoverthesierrasdecordobaandsensitivitytochangesintheorographicprofile AT nicolinim convectivestorminitiationoverthesierrasdecordobaandsensitivitytochangesintheorographicprofile AT skabaryg convectivestorminitiationoverthesierrasdecordobaandsensitivitytochangesintheorographicprofile
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Convective storm initiation over the Sierras de Córdoba and sensitivity to changes in the orographic profile

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