Abstract:
The present work focuses on the study of the environmental conditions preceding the development of a group of subtropical mesoscale convective systems over central and northern Argentina on 6-7 February 2003 during the South American Low Level Jet Experiment. This period was characterized by an extreme northerly low-level flow along the eastern Andes foothills [South American low-level jet (SALLJ)]. The entire studied episode was dominated by the presence of a very unstable air mass over northern Argentina and a frontal zone near 40°S. The SALLJ generated an important destabilization of the atmosphere due to the strong humidity and differential temperature advection. Orography provided an extra lifting motion to the configuration of the regional wind field, which was efficient in forcing the initiation of convection. Once convection developed, it moved and regenerated in regions where the convective instability was horizontally homogeneous and stronger. © 2010 American Meteorological Society.
Registro:
Documento: |
Artículo
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Título: | Environment associated with deep moist convection under SALLJ conditions: A case study |
Autor: | Borque, P.; Salio, P.; Nicolini, M.; Skabar, Y.G. |
Filiación: | Departamento de Ciencias de la Atmósfera y los Océanos, FCEN, University of Buenos Aires, Buenos Aires, Argentina Centro de Investigaciones del Mar y la Atmósfera, CONICET, University of Buenos Aires, Buenos Aires, Argentina National Weather Service, Facultad de Agronomía, University of Buenos Aires, Buenos Aires, Argentina Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, QC, Canada
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Palabras clave: | Deep convection; Field experiments; Jets; Mesoscale systems; South America; Subtropics; Deep convection; Field experiment; Field experiments; Meso-scale systems; South America; Atmospheric movements; Natural convection; Storms; Tropics; Experiments; advection; air mass; air temperature; atmospheric convection; convective system; jet; mesoscale meteorology; orographic effect; relative humidity; wind field; wind forcing; Argentina |
Año: | 2010
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Volumen: | 25
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Número: | 3
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Página de inicio: | 970
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Página de fin: | 984
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DOI: |
http://dx.doi.org/10.1175/2010WAF2222352.1 |
Título revista: | Weather and Forecasting
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Título revista abreviado: | Weather Forecast.
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ISSN: | 08828156
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08828156_v25_n3_p970_Borque |
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Citas:
---------- APA ----------
Borque, P., Salio, P., Nicolini, M. & Skabar, Y.G.
(2010)
. Environment associated with deep moist convection under SALLJ conditions: A case study. Weather and Forecasting, 25(3), 970-984.
http://dx.doi.org/10.1175/2010WAF2222352.1---------- CHICAGO ----------
Borque, P., Salio, P., Nicolini, M., Skabar, Y.G.
"Environment associated with deep moist convection under SALLJ conditions: A case study"
. Weather and Forecasting 25, no. 3
(2010) : 970-984.
http://dx.doi.org/10.1175/2010WAF2222352.1---------- MLA ----------
Borque, P., Salio, P., Nicolini, M., Skabar, Y.G.
"Environment associated with deep moist convection under SALLJ conditions: A case study"
. Weather and Forecasting, vol. 25, no. 3, 2010, pp. 970-984.
http://dx.doi.org/10.1175/2010WAF2222352.1---------- VANCOUVER ----------
Borque, P., Salio, P., Nicolini, M., Skabar, Y.G. Environment associated with deep moist convection under SALLJ conditions: A case study. Weather Forecast. 2010;25(3):970-984.
http://dx.doi.org/10.1175/2010WAF2222352.1