Indicadores

Marine Heatwaves and Marine Cold-spells on the Yucatan Shelf-break Upwelling region and its relationship with Red tide

Cita: Reyes, O.F., Carrillo, L., Manta, G. (2022). Marine Heatwaves and Marine Cold-spells on the Yucatan Shelf-break Upwelling region and its relationship with Red tide. EuroSea/OceanPredict Workshop – Met Office. Uk, Online.
EuroSea/OceanPredict Workshop – Met Office

Periodo de realización: 1900/01/01 al 2022/06/29

Tipo: Ponencia

Lugar(es) de estudio: Polígono de zona geográfica
Resumen: "Since the historic marine temperature has been changing and consequently the ecological processes, this work studies the presence and magnitude of anomalous events at the sea surface temperature (SST) from a climate change perspective in a Non-eastern upwelling system. Concepts and metrics for Marine Heatwaves (MHW) and Marine Cold–Spell (MCS) were applied over the marine region of the Yucatan continental shelf and Yucatan Channel. To calculate the MHW/MCS and climatology between 1982 to 2019, a remote historic dataset of SST was used. Furthermore, a frequency-domain cross-correlation analysis between SST and Chlorophyll-a was conducted to analyze a temporal relationship among those anomalies and the Red tide that struck the coastal region, in the year 2011. Results indicate that MHW/MCS have varied spatially and temporarily over the marine region of the Yucatan shelf, and have become more frequent and longer in the last twenty-years, tending to keep increasing in some sub-regions. MCS events are of equal or greater significance than MHW, mainly in the inner–shelf sub-region, where more than 110 days of MCS were recorded in 2011. The extreme biological event reported that year could be explained by MCS. The results will be head to local government as scientific information to promote mitigation action in co-creation."

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