DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU

This article studies the influential factors in the occurrence of extreme rainfall in the northern Peru. The favorable conditions are analyzed under the following hypothesis: warming up of the sea surface temperature (SST), the southward movement of the Inter Tropical Convergence Zone (ITCZ), and th...

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Autores principales: Carrillo,Mauricio, Bazo,Juan
Lenguaje:English
Publicado: Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2004
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200016
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spelling oai:scielo:S0717-653820040002000162005-09-14DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERUCarrillo,MauricioBazo,JuanThis article studies the influential factors in the occurrence of extreme rainfall in the northern Peru. The favorable conditions are analyzed under the following hypothesis: warming up of the sea surface temperature (SST), the southward movement of the Inter Tropical Convergence Zone (ITCZ), and the advection of humidity transferred from the east part of the Andes. Extreme rainfall has been periodically observed, it occurs during El Niño and non El Niño events. The main goal is to quantify the critical threshold for this occurrence. These limits will be associated to the teleconnections of the SST, ITCZ and winds. The generation of a warm "nucleus" of SST facilitates the creation of convergence "nucleus" in low levels due to positive temperature advection. It may weaken the thermal inversion and raise the atmospheric instability. To explain the dynamics of generation of extreme precipitation, the relationship of these three important factors: SST, ITCZ and winds, is analyzed using MODIS, GOES, and simulation of winds with the Regional Atmospheric Modeling System (RAMS). The results of this study will help to alert extreme rainfall eventsinfo:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.68 n.2 suppl.TIProc 20042004-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200016en10.4067/S0717-65382004000200016
institution Scielo Chile
collection Scielo Chile
language English
description This article studies the influential factors in the occurrence of extreme rainfall in the northern Peru. The favorable conditions are analyzed under the following hypothesis: warming up of the sea surface temperature (SST), the southward movement of the Inter Tropical Convergence Zone (ITCZ), and the advection of humidity transferred from the east part of the Andes. Extreme rainfall has been periodically observed, it occurs during El Niño and non El Niño events. The main goal is to quantify the critical threshold for this occurrence. These limits will be associated to the teleconnections of the SST, ITCZ and winds. The generation of a warm "nucleus" of SST facilitates the creation of convergence "nucleus" in low levels due to positive temperature advection. It may weaken the thermal inversion and raise the atmospheric instability. To explain the dynamics of generation of extreme precipitation, the relationship of these three important factors: SST, ITCZ and winds, is analyzed using MODIS, GOES, and simulation of winds with the Regional Atmospheric Modeling System (RAMS). The results of this study will help to alert extreme rainfall events
author Carrillo,Mauricio
Bazo,Juan
spellingShingle Carrillo,Mauricio
Bazo,Juan
DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
author_facet Carrillo,Mauricio
Bazo,Juan
author_sort Carrillo,Mauricio
title DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
title_short DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
title_full DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
title_fullStr DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
title_full_unstemmed DYNAMICS OF GENERATION OF EXTREME PRECIPITATION IN THE NORTHERN OF PERU
title_sort dynamics of generation of extreme precipitation in the northern of peru
publisher Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate 2004
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200016
work_keys_str_mv AT carrillomauricio dynamicsofgenerationofextremeprecipitationinthenorthernofperu
AT bazojuan dynamicsofgenerationofextremeprecipitationinthenorthernofperu
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