Evidence of climate-driven changes on atmospheric, hydrological, and oceanographic variables along the Chilean coastal zone

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dc.contributor.authorWinckler Grez, Patricio
dc.contributor.authorAguirre, Catalina
dc.contributor.authorFarías, Laura
dc.contributor.authorContreras-López, Manuel
dc.contributor.authorMasotti, Ítalo
dc.date.accessioned2022-03-17T15:28:59Z
dc.date.available2022-03-17T15:28:59Z
dc.date.issued2020
dc.description.abstractThe Chilean coastal zone (CCZ) is subjected to a complex spectrum of anthropogenic, geophysical, biogeochemical, and climate-driven perturbations. Potentially affected variables including atmospheric sea level pressure (Pa), alongshore wind, sea surface temperature (SST), chlorophyll-a, rainfall, river discharge, relative mean sea level (RMSL), and wave climate are studied using in situ and satellite records, hindcasts, and reanalysis datasets. Linear temporal trends and correlations of anomalies are estimated between 18°S and 55°S along the CCZ. The comparison of some of the variables is achieved by means of a strict homogenization procedure on a monthly basis for 35 years. Our findings show that the poleward drift and strengthening of the Southeast Pacific Subtropical Anticyclone (SPSA) partially explains the increase in Pa and reduction in rainfall and river discharge. The enhancement of alongshore winds, also attributable to changes in the SPSA, increases coastal upwelling, which in turn could reduce SST and increase chlorophyll-a. Despite differential latitudinal responses, increasing wave heights and a southward rotation are evidenced. RMSL does not show significant variation as it is presumably affected by seafloor changes during the seismic cycle. Though some correlations are evidenced, the influence of climate variability at decadal scale (PDO, SAM) may be affecting the detected trends due to the short length of available data. Impacts on coastal communities, infrastructure, and ecosystems are discussed, aiming to highlight that coastal vulnerabilities and risk management should be based on the cumulative impacts of these variables.en_ES
dc.facultadFacultad de Ingenieríaen_ES
dc.identifier.doihttps://doi.org/10.1007/s10584-020-02805-3
dc.identifier.urihttp://repositoriobibliotecas.uv.cl/handle/uvscl/3865
dc.language.isoenen_ES
dc.publisherSpringeren_ES
dc.rights© The Author(s) 2020en_ES
dc.sourceClimatic Changeen_ES
dc.subjectCOASTAL PROCESSESen_ES
dc.subjectDECADAL TRENDSen_ES
dc.subjectCLIMATE CHANGEen_ES
dc.titleEvidence of climate-driven changes on atmospheric, hydrological, and oceanographic variables along the Chilean coastal zoneen_ES
uv.catalogadorRCR DIBRAen_ES
uv.departamentoEscuela de Ingenieria Civil Oceanicaen_ES

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