Interannual Variation of Summer Sea Surface Salinity in the Dotson–Getz Trough, West Antarctica

In this study, we explore the interannual variability of Sea Surface Salinity (SSS) in the Dotson–Getz Trough located in West Antarctica, focusing on the month of February. Utilizing the oceanic analysis product EN4, we first validate the EN4 SSS with data from a singular ship-based survey, and then...

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Bibliographic Details
Published in:Journal of Marine Science and Engineering
Main Authors: Lu-Sha Yu, Hailun He, Hengling Leng, Xiaohui Chen
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2024
Subjects:
Sea Surface Salinity
Dotson–Getz Trough
interannual variability
sea ice concentration
curl of surface stress
Naval architecture. Shipbuilding. Marine engineering
VM1-989
Oceanography
GC1-1581
Antarc*
Antarctica
Sea ice
West Antarctica
Online Access:https://doi.org/10.3390/jmse12071067
https://doaj.org/article/9f73dda9a2b64bb7917d81360c665561
Description
Summary:In this study, we explore the interannual variability of Sea Surface Salinity (SSS) in the Dotson–Getz Trough located in West Antarctica, focusing on the month of February. Utilizing the oceanic analysis product EN4, we first validate the EN4 SSS with data from a singular ship-based survey, and then delve into potential factors that may influence SSS, with a particular emphasis on surface freshwater flux, sea ice concentration (SIC), and also the surface stress curl, which will induce upwelling via Ekman transport to affect the SSS. Our findings primarily indicate a link between SSS and sea ice concentration, showcasing a negative correlation where the peak (average) coefficient is around −0.6 (−0.4), further affirming the substantial interannual variability of SSS in this region.

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