Numerical simulation of salinity anomaly propagation in the Nordic seas and the Arctic Ocean

We investigate the response of the Nordic seas-Arctic Ocean system to surface freshwater flux anomalies that we regard as typical for long-term atmospheric variability. We employ response experiments with a coupled sea ice-ocean model where we introduce a surface freshwater flux anomaly (A) over the...

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Bibliographic Details
Published in:Polar Research
Main Authors: Gerdes, Rüdiger, Köberle, Cornelia
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian Polar Institute 1999
Subjects:
Arctic
Arctic Ocean
Norwegian Sea
Laptev Sea
Amundsen Basin
amundsen basin
laptev
Nordic Seas
Polar Research
Sea ice
Online Access:https://polarresearch.net/index.php/polar/article/view/2225
https://doi.org/10.3402/polar.v18i2.6569
Description
Summary:We investigate the response of the Nordic seas-Arctic Ocean system to surface freshwater flux anomalies that we regard as typical for long-term atmospheric variability. We employ response experiments with a coupled sea ice-ocean model where we introduce a surface freshwater flux anomaly (A) over the Norwegian Sea and (B) in the Laptev Sea. Case A offers an explanation for the intermediate depth salinity changes observed in the Amundsen Basin. The signal observed there belongs to an original perturbation that, according to the model, occurred around a decade earlier. Salinity fluctuations in the Laptev Sea could play a role in changes in the near surface salinity in the Amundsen Basin.

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