The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions

The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions

In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (B...

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Autors principals: Oliva-Méndez, Norma, Delgadillo-Hinojosa, Francisco, Pérez-Brunius, Paula, Valencia-Gasti, Augusto, Huerta-Diaz, Miguel A, Palacios-Coria, Eduardo, Hernández-Ayón, J Martín
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Publicat: Iniversidad Autónoma de Baja California 2018
Accés en línia:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833
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spelling repositorioinstitucional-20.500.12930-75442023-05-09T14:30:49Z The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions El sistema de carbonatos en aguas costeras del norte de la península de Baja California bajo condiciones de La Niña Oliva-Méndez, Norma Delgadillo-Hinojosa, Francisco Pérez-Brunius, Paula Valencia-Gasti, Augusto Huerta-Diaz, Miguel A Palacios-Coria, Eduardo Hernández-Ayón, J Martín In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (Baja California, Mexico) and surrounding waters. The results showed that ZΩa variability was modulated by the intensity of interannual conditions and by the water masses that were present in the region. Subarctic Water predominated in the upper 200 m with anomalous characteristics, such as low temperature and low salinity. Also, isopycnals shoaled toward the coast and ZΩa was thus ~30 m in the nearshore area, in contrast with the oceanic region, where ZΩa was ~150 m. Prior to this study, there were no records of ZΩa in Todos Santos Bay, nor were there any records of its shallowness. En el Pacífico Norte se presentan variaciones en la profundidad de las isopicnas durante eventos interanuales que influyen en las características biogeoquímicas de la columna de agua y en el horizonte de saturación del aragonita (ZΩa). El objetivo de este trabajo fue evaluar el efecto de las condiciones de La Niña de 2011 sobre el ZΩa en la bahía de Todos Santos (Baja California, México) y aguas adyacentes. Los resultados mostraron que la variabilidad del ZΩa estuvo modulada por la intensidad de las condiciones interanuales y por las masas de agua que se presentaron en la región. En los primeros 200 m superficiales predominó el Agua del Subártico con características anómalas de baja temperatura y baja salinidad. Asimismo, se observó un ascenso de las isopicnas con dirección a la costa y, por tanto, el ZΩa fue de ~30 m en la zona más cercana a la costa, en contraste con la región más oceánica, donde el ZΩa fue de ~150 m. Antes del presente estudio, no se tenían registros del ZΩa para la zona dentro de la bahía de Todos Santos, tampoco de que pudiera ser somero. 2018-09-28 2021-06-03T03:55:38Z 2021-06-03T03:55:38Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833 10.7773/cm.v44i3.2833 https://hdl.handle.net/20.500.12930/7544 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833/420420451 Copyright (c) 2018 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 44 No. 3 (2018); 203–220 Ciencias Marinas; Vol. 44 Núm. 3 (2018); 203–220 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
description In the North Pacific, variations in isopycnal depth influence the biogeochemical characteristics of the water column and the aragonite saturation horizon (ZΩa) during interannual events. The objective of this study was to assess the effect of the 2011 La Niña conditions on ZΩa in Todos Santos Bay (Baja California, Mexico) and surrounding waters. The results showed that ZΩa variability was modulated by the intensity of interannual conditions and by the water masses that were present in the region. Subarctic Water predominated in the upper 200 m with anomalous characteristics, such as low temperature and low salinity. Also, isopycnals shoaled toward the coast and ZΩa was thus ~30 m in the nearshore area, in contrast with the oceanic region, where ZΩa was ~150 m. Prior to this study, there were no records of ZΩa in Todos Santos Bay, nor were there any records of its shallowness.
format info:eu-repo/semantics/article
author Oliva-Méndez, Norma
Delgadillo-Hinojosa, Francisco
Pérez-Brunius, Paula
Valencia-Gasti, Augusto
Huerta-Diaz, Miguel A
Palacios-Coria, Eduardo
Hernández-Ayón, J Martín
spellingShingle Oliva-Méndez, Norma
Delgadillo-Hinojosa, Francisco
Pérez-Brunius, Paula
Valencia-Gasti, Augusto
Huerta-Diaz, Miguel A
Palacios-Coria, Eduardo
Hernández-Ayón, J Martín
The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
author_facet Oliva-Méndez, Norma
Delgadillo-Hinojosa, Francisco
Pérez-Brunius, Paula
Valencia-Gasti, Augusto
Huerta-Diaz, Miguel A
Palacios-Coria, Eduardo
Hernández-Ayón, J Martín
author_sort Oliva-Méndez, Norma
title The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_short The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_full The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_fullStr The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_full_unstemmed The carbonate system in coastal waters off the northern region of the Baja California Peninsula under La Niña conditions
title_sort carbonate system in coastal waters off the northern region of the baja california peninsula under la niña conditions
publisher Iniversidad Autónoma de Baja California
publishDate 2018
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2833
_version_ 1792609855089934336

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