Joint Seminar: Causal attribution of high-impact marine heatwaves over the northeast Pacific

Over the last decade, the northeast Pacific (NP) experienced strong marine heatwaves (MHWs) that produced devastating marine ecological impacts and received major societal concerns. In this study, we assess the link between the well-mixed greenhouse gases (GHG) forcing, and the occurrence probabilities of the duration and intensity of the NP high-impact MHWs. We investigate whether GHG forcing was necessary for the MHWs to occur and whether it is a sufficient cause for such events to continue to repeatedly occur in the 21st Century. Our results, based on two different attribution techniques, provide a complete picture of anthropogenic influence on SST extremes over the North Pacific.

Date

01.03.2022

Time

15:15 h

Place

Virtual Seminar
Hamburg

Speaker

Armineh Barkhordarian, Institut für Meereskunde, Universität Hamburg

Organizers

Diego Jiménez-de-la-Cuesta Otero

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