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http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/2472| Temporal Variability of Oceanic Mesoscale Events in the Gulf of California | |
| EDGARDO BASILIO FARACH ESPINOZA JUANA LOPEZ MARTINEZ Ricardo Garcia-Morales Manuel Otilio Nevárez Martínez Daniel Bernardo Lluch Cota SOFIA ORTEGA GARCIA | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| DOI: 10.3390/rs13091774 URL: https://www.mdpi.com/2072-4292/13/9/1774 ISSN: 2072-4292 | |
| mesoscale events, satellite images, Gulf of California, temporal variability, MEI, PDOI | |
| "Oceanic mesoscale events such as eddies, coastal upwelling, filaments and fronts created by water mass intrusion present properties allowing them to concentrate, transport and disperse salt, nutrients and plankton, among other important constituents in the ocean. The use of satellite images enables the continuous monitoring of the ocean dynamics at different temporal and spatial scales, aiding the study of its variability. This study focuses on the identification of these mesoscale events in the Gulf of California (GC) by means of sea surface temperature (SST) and chlorophyll a (Chl a) fronts (edge) detection by processing 5-day satellite images from the 1998–2019 period. The anual occurrence or frequency and duration of each event was identified; the interannual variability was evaluated and underlying correlations with the Multivariate El Niño Index (MEI) and the Pacific Decadal Index (PDOI) were assessed via Principal Component Analysis. Most events showed a seasonal variability due to the seasonal behavior of forcing agents (i.e., Pacific Ocean and winds) that stimulate their formation or presence in the GC; seasonality was more evident in the northern región than in the southern region. The interannual variability of their frequency or duration was associated with strong and intense El Niño and La Niña conditions (positive or negative MEI values) together with positive or negative phases of the PDOI. The use of SST and Chl a satellite images with a 5-day temporal resolution allowed to better identify and quantify the annual frequency and duration of each mesoscale event. It allowed to detect a seasonal behavior of these events in the northern region, followed by the central region. The southern region, due to the interaction of different water masses with unique characteristics, exhibited a less evident seasonality in the frequency of eddies, and no apparent association between their interannual frequency and duration with the MEI and PDOI. Constantly monitoring these oceanic events and their variability will help in the understanding of how the different regions of this large marine ecosystem respond to these variations in the long term." | |
| Multidisciplinary Digital Publishing Institute | |
| 2021 | |
| Artículo | |
| Remote sensing | |
| Inglés | |
| Farach-Espinoza, E.B.; López-Martínez, J.; García-Morales, R.; Nevárez-Martínez, M.O.; Lluch-Cota, D.B.; Ortega-García, S. Temporal Variability of Oceanic Mesoscale Events in the Gulf of California. Remote Sens. 2021, 13, 1774. https://doi.org/10.3390/rs13091774 | |
| INTERACCIONES MAR-AIRE | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos |
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| Remote Sens 2021v13 1774.pdf | 56.02 kB | Adobe PDF | Visualizar/Abrir |