CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC

Characteristics of the Intertropical Convergence Zone (ITCZ) in the eastern Pacific are derived from the monthly mean wind convergence of ERS-QuikSCAT fields for 1991-2004. Its climatology is computed over 1999-2004, and compared with those derived from monthly sea surface temperature, atmospheric w...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Garcés-Vargas,José, Abarca del Río,Rodrigo, Schneider,Wolfgang
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=S0717-65382004000200039
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-65382004000200039
record_format	dspace
spelling	oai:scielo:S0717-653820040002000392005-05-16CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFICGarcés-Vargas,JoséAbarca del Río,RodrigoSchneider,WolfgangCharacteristics of the Intertropical Convergence Zone (ITCZ) in the eastern Pacific are derived from the monthly mean wind convergence of ERS-QuikSCAT fields for 1991-2004. Its climatology is computed over 1999-2004, and compared with those derived from monthly sea surface temperature, atmospheric water vapor, cloud liquid water, and rain rate from the Tropical Rain Measuring Mission (TRMM, 1999-2004). Preliminary results indicated an excellent relationship between wind convergence and TRMM data for the northern branch of ITCZ (NITCZ). However, none of the TRMM fields show, as the ERS-QuikSCAT fields does the southern branch of ITCZ (SITCZ). Therefore, an especial emphasis is given over SITCZ, for instance only shown in wind convergence, with a permanent characteristic, although with a wide and narrow cover during February-March and October-November, respectively. TRMM data only shows the SITCZ during February to April. We extend the analysis to interannual time scales, with a particular emphasis on El Niño-Southern Oscillation cycle. The analysis of the ERS-QuikSCAT fields shows that during El Niño events both NITCZ and SITCZ are united in the first months and SITCZ disappear in the rest, whereas during la Niña, the SITCZ tends to strength and permanence throughout the yearinfo: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=S0717-65382004000200039en10.4067/S0717-65382004000200039
institution	Scielo Chile
collection	Scielo Chile
language	English
description	Characteristics of the Intertropical Convergence Zone (ITCZ) in the eastern Pacific are derived from the monthly mean wind convergence of ERS-QuikSCAT fields for 1991-2004. Its climatology is computed over 1999-2004, and compared with those derived from monthly sea surface temperature, atmospheric water vapor, cloud liquid water, and rain rate from the Tropical Rain Measuring Mission (TRMM, 1999-2004). Preliminary results indicated an excellent relationship between wind convergence and TRMM data for the northern branch of ITCZ (NITCZ). However, none of the TRMM fields show, as the ERS-QuikSCAT fields does the southern branch of ITCZ (SITCZ). Therefore, an especial emphasis is given over SITCZ, for instance only shown in wind convergence, with a permanent characteristic, although with a wide and narrow cover during February-March and October-November, respectively. TRMM data only shows the SITCZ during February to April. We extend the analysis to interannual time scales, with a particular emphasis on El Niño-Southern Oscillation cycle. The analysis of the ERS-QuikSCAT fields shows that during El Niño events both NITCZ and SITCZ are united in the first months and SITCZ disappear in the rest, whereas during la Niña, the SITCZ tends to strength and permanence throughout the year
author	Garcés-Vargas,José Abarca del Río,Rodrigo Schneider,Wolfgang
spellingShingle	Garcés-Vargas,José Abarca del Río,Rodrigo Schneider,Wolfgang CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
author_facet	Garcés-Vargas,José Abarca del Río,Rodrigo Schneider,Wolfgang
author_sort	Garcés-Vargas,José
title	CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
title_short	CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
title_full	CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
title_fullStr	CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
title_full_unstemmed	CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC
title_sort	climatology and interannual variability of intertropical convergence zone in the eastern pacific
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2004
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000200039
work_keys_str_mv	AT garcesvargasjose climatologyandinterannualvariabilityofintertropicalconvergencezoneintheeasternpacific AT abarcadelriorodrigo climatologyandinterannualvariabilityofintertropicalconvergencezoneintheeasternpacific AT schneiderwolfgang climatologyandinterannualvariabilityofintertropicalconvergencezoneintheeasternpacific
_version_	1718442067324043264

CLIMATOLOGY AND INTERANNUAL VARIABILITY OF INTERTROPICAL CONVERGENCE ZONE IN THE EASTERN PACIFIC

Ejemplares similares