Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016
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Redalyc · Ciencias Marinas
A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico)...
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| Pubblicato in: | Ciencias Marinas |
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Autónoma de Baja California
2017
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| _version_ | 1878325300273610752 |
|---|---|
| author | Reginaldo Durazo |
| author_facet | Reginaldo Durazo |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Reginaldo Durazo Rubén Castro Luis E. Miranda Francisco Delgadillo-Hinojosa Adán Mejía-Trejo Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows. 2017 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48052086002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.43 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2754 10.7773/cm.v43i2.2754 |
| description | A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows.
En el periodo 2013–2016 se presentó en el Pacífico una sucesión de eventos cálidos de escala interanual, durante los cuales se manifestaron anomalías térmicas positivas. Durante 2013 se observó una región muy extensa de aguas anómalamente cálidas, la cual se formó en el Pacífico nororiental y, para 2015, se extendió hacia aguas frente a Baja California (México). También en 2015, además del efecto de calentamiento ya existente, se registraron las primeras evidencias de un evento El Niño. En este trabajo se analizan los datos hidrográficos medidos en la bahía Todos Santos y sus alrededores, así como datos satelitales del nivel del mar, para caracterizar los cambios en las condiciones hidrográficas durante el periodo 2013–2016. Las observaciones mostraron las máximas anomalías positivas de temperatura (~5 ºC) durante septiembre de 2015 y un rápido decaimiento hacia condiciones neutras en la primavera de 2016. Los registros para la bahía mostraron cambios leves en las condiciones hidrográficas durante la primavera, lo cual evidenció la importancia de los forzamientos locales sobre los forzamientos remotos en esa época del año. En contraste, en otoño las señales interanuales dominaron sobre los procesos locales. El análisis de datos de altimetría sugirió una conectividad entre el norte y sur frente a la península a través de la propagación de señales, identificadas como un flujo costero superficial hacia el polo. |
| format | Artículo científico |
| id | redalyc_48052086002 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2017 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Condiciones hidrográficas anómalas frente a la costa noroeste de la penínsulade Baja California durante 2013–2016 Durazo, Reginaldo Castro, Rubén Miranda, Luis E Delgadillo-Hinojosa, Francisco Mejía-Trejo, Adán A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows. En el periodo 2013–2016 se presentó en el Pacífico una sucesión de eventos cálidos de escala interanual, durante los cuales se manifestaron anomalías térmicas positivas. Durante 2013 se observó una región muy extensa de aguas anómalamente cálidas, la cual se formó en el Pacífico nororiental y, para 2015, se extendió hacia aguas frente a Baja California (México). También en 2015, además del efecto de calentamiento ya existente, se registraron las primeras evidencias de un evento El Niño. En este trabajo se analizan los datos hidrográficos medidos en la bahía Todos Santos y sus alrededores, así como datos satelitales del nivel del mar, para caracterizar los cambios en las condiciones hidrográficas durante el periodo 2013–2016. Las observaciones mostraron las máximas anomalías positivas de temperatura (~5 ºC) durante septiembre de 2015 y un rápido decaimiento hacia condiciones neutras en la primavera de 2016. Los registros para la bahía mostraron cambios leves en las condiciones hidrográficas durante la primavera, lo cual evidenció la importancia de los forzamientos locales sobre los forzamientos remotos en esa época del año. En contraste, en otoño las señales interanuales dominaron sobre los procesos locales. El análisis de datos de altimetría sugirió una conectividad entre el norte y sur frente a la península a través de la propagación de señales, identificadas como un flujo costero superficial hacia el polo. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2017-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf text/xml text/xml https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2754 10.7773/cm.v43i2.2754 Ciencias Marinas; Vol. 43 No. 2 (2017); 81-92 Ciencias Marinas; Vol. 43 Núm. 2 (2017); 81-92 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2754/1643 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2754/420420596 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2754/420420773 Copyright (c) 2017 Ciencias Marinas https://creativecommons.org/licenses/by/4.0 ['Redalyc'] redalyc_48052086002 Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 ['Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016', 'Reginaldo Durazo', 'Ciencias de la Tierra', 'Hydrography', 'IMECOCAL program', 'surface countercurrent', 'interannual variability', 'Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Reginaldo Durazo Rubén Castro Luis E. Miranda Francisco Delgadillo-Hinojosa Adán Mejía-Trejo Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows. 2017 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48052086002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.43'] ['Reginaldo Durazo'] ['Reginaldo Durazo'] ['Artículo científico'] ['2017'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'Hydrography', 'IMECOCAL program', 'surface countercurrent', 'interannual variability'] ['https://www.redalyc.org/articulo.oa?id=48052086002'] ['Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Reginaldo Durazo Rubén Castro Luis E. Miranda Francisco Delgadillo-Hinojosa Adán Mejía-Trejo Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows. 2017 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48052086002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.43'] |
| spellingShingle | Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Reginaldo Durazo Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 Reginaldo Durazo Rubén Castro Luis E. Miranda Francisco Delgadillo-Hinojosa Adán Mejía-Trejo Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability A succession of interannual warm events occurred in the Pacific during the 2013–2016 period, when positive thermal anomalies were detected. A broad region with abnormally warm waters in the northeastern Pacific Ocean was observed in 2013, which by 2015 had reached waters off Baja California (Mexico). In addition to the ongoing warming effect, early evidence of an El Niño event was detected in 2015. This paper analyzes hydrographic data measured at Todos Santos Bay and environs, as well as satellite-derived sea-level data, to characterize changes in the hydrographic conditions during the 2013–2016 period. The highest positive temperature anomalies (~5 ºC) were observed in September 2015, with a steep decline to neutral conditions in spring 2016. Records for the bay showed slight variations in hydrographic conditions during spring, highlighting the importance of local over remote forcings during this time of year. In autumn, by contrast, interannual signals prevailed over local processes. Satellite-derived sea-level data revealed an alongshore propagation of remote signals, identified as shallow coastal poleward flows. 2017 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48052086002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.43 |
| title | Anomalous hydrographic conditions off the northwestern coast of the Baja California Peninsula during 2013–2016 |
| title_alt | Condiciones hidrográficas anómalas frente a la costa noroeste de la penínsulade Baja California durante 2013–2016 |
| topic | Ciencias de la Tierra Hydrography IMECOCAL program surface countercurrent interannual variability |
| url | https://www.redalyc.org/articulo.oa?id=48052086002 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2754 |