The influence of the Andes mountains on the South American low-level flow

A dry, hydrostatic, three-dimensional primitive equation model is used to evaluate the mechanical effect of the Andes mountains on the South American low-level flow (LLF). The model simulations reproduce the evolution of a baroclinic wave over the continent under winter and summer conditions. In bot...

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Detalles Bibliográficos
Autores principales: Campetella, C.M., Vera, C.S.
Formato: JOUR
Materias:
Mathematical models
Storms
Wave effects
Earth sciences
Geophysics
Andes mountains
atmospheric circulation
atmospheric dynamics
boundary layer
orographic effect
South America
Baroclinic waves
Basic flow
Cyclone activity
Mechanical effects
Model simulation
Seasonal changes
Three dimensional primitive equations
Warm seasons
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00948276_v29_n17_p7_Campetella
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00948276_v29_n17_p7_Campetella
record_format dspace
spelling todo:paper_00948276_v29_n17_p7_Campetella2023-10-03T14:56:28Z The influence of the Andes mountains on the South American low-level flow Campetella, C.M. Vera, C.S. Mathematical models Storms Wave effects Earth sciences Geophysics Andes mountains Geophysics Storms atmospheric circulation atmospheric dynamics boundary layer orographic effect South America Baroclinic waves Basic flow Cyclone activity Mechanical effects Model simulation Seasonal changes Three dimensional primitive equations Warm seasons A dry, hydrostatic, three-dimensional primitive equation model is used to evaluate the mechanical effect of the Andes mountains on the South American low-level flow (LLF). The model simulations reproduce the evolution of a baroclinic wave over the continent under winter and summer conditions. In both seasons as a consequence of the interaction between the basic flow and the Andes, northerly LLF was reproduced east of the Andes which resembles the main characteristics of the observed flow. Moreover, seasonal changes of cyclone activity have a significant impact on the location of maximum LLF and its alignment, which exhibits a NW-SE orientation during winter and more meridional orientation in the warm season. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00948276_v29_n17_p7_Campetella
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Mathematical models
Storms
Wave effects
Earth sciences
Geophysics
Andes mountains
Geophysics
Storms
atmospheric circulation
atmospheric dynamics
boundary layer
orographic effect
South America
Baroclinic waves
Basic flow
Cyclone activity
Mechanical effects
Model simulation
Seasonal changes
Three dimensional primitive equations
Warm seasons
spellingShingle Mathematical models
Storms
Wave effects
Earth sciences
Geophysics
Andes mountains
Geophysics
Storms
atmospheric circulation
atmospheric dynamics
boundary layer
orographic effect
South America
Baroclinic waves
Basic flow
Cyclone activity
Mechanical effects
Model simulation
Seasonal changes
Three dimensional primitive equations
Warm seasons
Campetella, C.M.
Vera, C.S.
The influence of the Andes mountains on the South American low-level flow
topic_facet Mathematical models
Storms
Wave effects
Earth sciences
Geophysics
Andes mountains
Geophysics
Storms
atmospheric circulation
atmospheric dynamics
boundary layer
orographic effect
South America
Baroclinic waves
Basic flow
Cyclone activity
Mechanical effects
Model simulation
Seasonal changes
Three dimensional primitive equations
Warm seasons
description A dry, hydrostatic, three-dimensional primitive equation model is used to evaluate the mechanical effect of the Andes mountains on the South American low-level flow (LLF). The model simulations reproduce the evolution of a baroclinic wave over the continent under winter and summer conditions. In both seasons as a consequence of the interaction between the basic flow and the Andes, northerly LLF was reproduced east of the Andes which resembles the main characteristics of the observed flow. Moreover, seasonal changes of cyclone activity have a significant impact on the location of maximum LLF and its alignment, which exhibits a NW-SE orientation during winter and more meridional orientation in the warm season.
format JOUR
author Campetella, C.M.
Vera, C.S.
author_facet Campetella, C.M.
Vera, C.S.
author_sort Campetella, C.M.
title The influence of the Andes mountains on the South American low-level flow
title_short The influence of the Andes mountains on the South American low-level flow
title_full The influence of the Andes mountains on the South American low-level flow
title_fullStr The influence of the Andes mountains on the South American low-level flow
title_full_unstemmed The influence of the Andes mountains on the South American low-level flow
title_sort influence of the andes mountains on the south american low-level flow
url http://hdl.handle.net/20.500.12110/paper_00948276_v29_n17_p7_Campetella
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