Investigating trends in Bering Strait transport ...

• Main Authors: Alberty, Marion, Timmermans, Mary-Louise, Sonya, Legg, Robert, Hallberg
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Arctic; Chukchi Sea; Bering Strait; Chukchi
• Online Access: https://dx.doi.org/10.57757/iugg23-0522; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016981

<!--!introduction!--> Bering Strait transport is a key source of heat, freshwater, and nutrients for the Arctic. Moored observations indicate that transport has been increasing over the last decades. Recently, Danielson et al. (2020) have proposed a feedback mechanism by which increased sea surface temperatures (SST) in the Chukchi Sea would drive stronger ocean to atmosphere heat fluxes in fall, leading to anomalously strong winds to the North over the Bering Strait, and thus increased Bering Strait heat and volume fluxes. We investigate this hypothesis with a combination of observations and modeling. First, we inspect reanalysis products to interrogate whether the observed trends support the proposed feedback mechanism. Next we investigate the response of an ocean model to reanalysis forcing, looking for evidence of whether this response can be detected for such simulations. Results indicate that the proposed increase in northward wind stress over the Bering Strait is highly localized in space and ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...