Retention time and transport potential of eddies in the northwestern Gulf of Mexico

Retention time and transport potential of eddies in the northwestern Gulf of Mexico

Eddies are transient structures that strongly influence mean ocean circulation. They modify the distribution of mass and properties such as heat, salt, chlorophyll, and passive particles. The capacity of eddies to transport properties or particles depends on their retention capacity. In this study t...

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Autores principales: Bello-Fuentes, Fernando José, García-Nava, Héctor, Andrade-Canto, Fernando, Durazo, Reginaldo, Castro, Rubén, Yarbuh, Ismael
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Publicado: Iniversidad Autónoma de Baja California 2021
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116
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spelling oai:cienciasmarinas.com.mx:article-31162023-11-24T21:12:35Z Retention time and transport potential of eddies in the northwestern Gulf of Mexico Tiempo de retención y capacidad de transporte de los remolinos del noroeste del golfo de México Bello-Fuentes, Fernando José García-Nava, Héctor Andrade-Canto, Fernando Durazo, Reginaldo Castro, Rubén Yarbuh, Ismael remolinos método lagrangiano retención de masa de agua derrame de hidrocarburos transporte eddies Lagrangian method water mass retention oil spill transport Eddies are transient structures that strongly influence mean ocean circulation. They modify the distribution of mass and properties such as heat, salt, chlorophyll, and passive particles. The capacity of eddies to transport properties or particles depends on their retention capacity. In this study the mesoscale eddies of the northwestern Gulf of Mexico (NWGM) were identified and characterized through a Lagrangian method that allows estimating the retention time and the mass fraction that they can retain and transport. For the analysis, daily 1993–2016 altimetry data were used. A total of 254 eddies, 73 anticyclones, and 181 cyclones, were detected in the study period. Approximately 30% of total detected eddies were identified to occur in a region at 94.75º W and 26.75º N, between the 1,000- and 2,500-m isobaths. On average, eddy radius was ~40 km for isobath <1,000 m and ~70 km for isobath >2,500 m. Mesoscale eddies in the NWGM can transport ~60% of the mass they had when they were detected. On average, mass transport occurs over 33 d for cyclones and 26 d for anticyclones. It rarely occurs for 60 d or more. Los remolinos son estructuras transitorias que influyen en gran medida en la circulación promedio del océano. Modifican la distribución de masa y propiedades como calor, sal, clorofila y partículas inertes. La capacidad que tienen los remolinos para transportar propiedades o partículas depende de su capacidad de retención. En este estudio se identificaron y caracterizaron los remolinos de mesoescala del noroeste del golfo de México (NOGM) a través de un método lagrangiano que permite evaluar el tiempo de retención y la fracción de masa que pueden retener y transportar. Para el análisis, se utilizaron datos diarios de altimetría de 1993 a 2016. En el periodo de estudio se detectaron un total de 254 remolinos, 73 anticiclones y 181 ciclones. Se identificó una región (94.75º W, 26.75º N) donde ocurren ~30% del total de los remolinos ciclónicos detectados entre las isóbatas de 1,000 y 2,500 m. En promedio, el radio de los remolinos fue de ~40 km para la isobata <1,000 m y ~70 km para la isobata >2,500 m. Los remolinos de mesoescala del NOGM pueden trasportar ~60% de la masa que contenían al momento de ser detectados. En promedio, el transporte de masa ocurrió por 33 d para los ciclones y por 26 d para los anticiclones. Rara vez ocurrió por 60 d o más. Iniversidad Autónoma de Baja California 2021-06-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado image/gif application/pdf text/xml text/xml https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116 10.7773/cm.v47i2.3116 Ciencias Marinas; Vol. 47 No. 2 (2021); 71–88 Ciencias Marinas; Vol. 47 Núm. 2 (2021); 71–88 2395-9053 0185-3880 eng spa https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116/420420569 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116/420420562 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116/420420762 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116/420420804 Copyright (c) 2021 Ciencias Marinas https://creativecommons.org/licenses/by/4.0
institution Ciencias Marinas
collection OJS
language eng
spa
format Online
author Bello-Fuentes, Fernando José
García-Nava, Héctor
Andrade-Canto, Fernando
Durazo, Reginaldo
Castro, Rubén
Yarbuh, Ismael
spellingShingle Bello-Fuentes, Fernando José
García-Nava, Héctor
Andrade-Canto, Fernando
Durazo, Reginaldo
Castro, Rubén
Yarbuh, Ismael
Retention time and transport potential of eddies in the northwestern Gulf of Mexico
author_facet Bello-Fuentes, Fernando José
García-Nava, Héctor
Andrade-Canto, Fernando
Durazo, Reginaldo
Castro, Rubén
Yarbuh, Ismael
author_sort Bello-Fuentes, Fernando José
title Retention time and transport potential of eddies in the northwestern Gulf of Mexico
title_short Retention time and transport potential of eddies in the northwestern Gulf of Mexico
title_full Retention time and transport potential of eddies in the northwestern Gulf of Mexico
title_fullStr Retention time and transport potential of eddies in the northwestern Gulf of Mexico
title_full_unstemmed Retention time and transport potential of eddies in the northwestern Gulf of Mexico
title_sort retention time and transport potential of eddies in the northwestern gulf of mexico
description Eddies are transient structures that strongly influence mean ocean circulation. They modify the distribution of mass and properties such as heat, salt, chlorophyll, and passive particles. The capacity of eddies to transport properties or particles depends on their retention capacity. In this study the mesoscale eddies of the northwestern Gulf of Mexico (NWGM) were identified and characterized through a Lagrangian method that allows estimating the retention time and the mass fraction that they can retain and transport. For the analysis, daily 1993–2016 altimetry data were used. A total of 254 eddies, 73 anticyclones, and 181 cyclones, were detected in the study period. Approximately 30% of total detected eddies were identified to occur in a region at 94.75º W and 26.75º N, between the 1,000- and 2,500-m isobaths. On average, eddy radius was ~40 km for isobath <1,000 m and ~70 km for isobath >2,500 m. Mesoscale eddies in the NWGM can transport ~60% of the mass they had when they were detected. On average, mass transport occurs over 33 d for cyclones and 26 d for anticyclones. It rarely occurs for 60 d or more.
publisher Iniversidad Autónoma de Baja California
publishDate 2021
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/3116
_version_ 1792095469483065344

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