ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)

Satellite - derived oceanographic parameters were used to explain the coastal and oceanic behavior of the chlorophyll concentration (CHL) in Chilean waters (18°-40°S, coast- 900 km offshore). CHL shows two different regimens of the annual cycle, the closer to the shore one with a austral summer maxi...

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Autores principales:	Yuras,Gabriel, Ulloa,Osvaldo, Letelier,Ricardo, Pizarro,Oscar
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=S0717-65382004000300056
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spelling	oai:scielo:S0717-653820040003000562005-05-16ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)Yuras,GabrielUlloa,OsvaldoLetelier,RicardoPizarro,OscarSatellite - derived oceanographic parameters were used to explain the coastal and oceanic behavior of the chlorophyll concentration (CHL) in Chilean waters (18°-40°S, coast- 900 km offshore). CHL shows two different regimens of the annual cycle, the closer to the shore one with a austral summer maximum in concordance to the upwelling and wind regimes; and an offshore one with a CHL maximum in winter time. The annual cycle is stronger in a thin band (20 km) close to the shore and in the oceanic zone, where it counts for more of the 80% of the variability present. There is a band, which varies with latitude, located between 100-200 km from coast where the annual cycle is not well resolved by the 100 km data bins used in this study. A EOF analysis of 9km resolution data was performed and the first mode (29.5% of variance explained) represented clearly the annual cycle and its 6 months out of phase behavior among coastal and oceanic waters The previous idea of a weak annual cycle in northern Chile, changes to a strong annual cycle close to the shore with maximum CHL in summer, an intermediate zone in which it is no possible to resolve an annual cycle and an outer zone in which the annual cycle has a maximum in the winter monthsinfo:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.68 n.2 suppl.TIIProc 20042004-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300056en10.4067/S0717-65382004000300056
institution	Scielo Chile
collection	Scielo Chile
language	English
description	Satellite - derived oceanographic parameters were used to explain the coastal and oceanic behavior of the chlorophyll concentration (CHL) in Chilean waters (18°-40°S, coast- 900 km offshore). CHL shows two different regimens of the annual cycle, the closer to the shore one with a austral summer maximum in concordance to the upwelling and wind regimes; and an offshore one with a CHL maximum in winter time. The annual cycle is stronger in a thin band (20 km) close to the shore and in the oceanic zone, where it counts for more of the 80% of the variability present. There is a band, which varies with latitude, located between 100-200 km from coast where the annual cycle is not well resolved by the 100 km data bins used in this study. A EOF analysis of 9km resolution data was performed and the first mode (29.5% of variance explained) represented clearly the annual cycle and its 6 months out of phase behavior among coastal and oceanic waters The previous idea of a weak annual cycle in northern Chile, changes to a strong annual cycle close to the shore with maximum CHL in summer, an intermediate zone in which it is no possible to resolve an annual cycle and an outer zone in which the annual cycle has a maximum in the winter months
author	Yuras,Gabriel Ulloa,Osvaldo Letelier,Ricardo Pizarro,Oscar
spellingShingle	Yuras,Gabriel Ulloa,Osvaldo Letelier,Ricardo Pizarro,Oscar ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
author_facet	Yuras,Gabriel Ulloa,Osvaldo Letelier,Ricardo Pizarro,Oscar
author_sort	Yuras,Gabriel
title	ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
title_short	ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
title_full	ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
title_fullStr	ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
title_full_unstemmed	ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)
title_sort	on the annual cycle of satellite chlorophyll off chile (18°-40°s)
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2004
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382004000300056
work_keys_str_mv	AT yurasgabriel ontheannualcycleofsatellitechlorophylloffchile1840s AT ulloaosvaldo ontheannualcycleofsatellitechlorophylloffchile1840s AT letelierricardo ontheannualcycleofsatellitechlorophylloffchile1840s AT pizarrooscar ontheannualcycleofsatellitechlorophylloffchile1840s
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ON THE ANNUAL CYCLE OF SATELLITE CHLOROPHYLL OFF CHILE (18°-40°S)

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