EXPLORING THE TEMPERATURE AND HYDROLOGIC RESPONSE OF TROPICAL OCEANS TO VOLCANIC ERUPTIONS OVER THE LAST 400 YEARS USING CORAL GEOCHEMISTRY

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dc.contributor.advisorKilbourne, Kelly H.en_US
dc.contributor.authorPerez Delgado, Zoraida Paolaen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2021-02-15T06:31:53Z
dc.date.available2021-02-15T06:31:53Z
dc.date.issued2020en_US
dc.description.abstractVolcanic eruptions perturb the Earth’s climate system. Open questions remain about the response of the hydrologic cycle and internal variability. Coral skeletal strontium to calcium ratios (Sr/Ca) and oxygen isotopic ratios (δ18O) record temperature and seawater oxygen isotopic signatures in the oceans, thus climatic perturbations from eruptions maybe recorded in the coral skeletal chemistry. I quantify the temperature and hydrologic response of the tropical climate system to eruptions since 1640 CE based on coral geochemical records. Data from all basins except the central and eastern Pacific show cooling and increases in seawater δ18O within the first three years of an eruption. Statistical significance of identified signals was tested by comparing against non-eruption sections from the records. Analyses with paired Sr/Ca and δ18O illustrate that the number of observations still limits detection of small signals provided by the eruptions.en_US
dc.identifierhttps://doi.org/10.13016/gsxs-28te
dc.identifier.urihttp://hdl.handle.net/1903/26857
dc.language.isoenen_US
dc.subject.pqcontrolledPaleoclimate scienceen_US
dc.subject.pqcontrolledGeochemistryen_US
dc.subject.pquncontrolledclimateen_US
dc.subject.pquncontrolledcoralsen_US
dc.subject.pquncontrolledpaleoclimateen_US
dc.subject.pquncontrolledvolcanoesen_US
dc.titleEXPLORING THE TEMPERATURE AND HYDROLOGIC RESPONSE OF TROPICAL OCEANS TO VOLCANIC ERUPTIONS OVER THE LAST 400 YEARS USING CORAL GEOCHEMISTRYen_US
dc.typeThesisen_US

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