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Séminaire

Ocean dynamics in North Svalbard: from sub-mesoscale to regional variations

Lester Kwiatkowski Norwegian Polar Institute, Tromsø and Geophysical institute

North Svalbard is one of the entry regions for warm, salty Atlantic waters into the Arctic.

Université de Versailles-Saint-Quentin-en-Yvelines  55 Avenue de Paris  78000  Versailles  Université de Versailles-Saint-Quentin-en-Yvelines, 55 Avenue de Paris, 78000 Versailles

Date 07/12/2021
Organisateur LOCEAN

Description

North Svalbard is one of the entry regions for warm, salty Atlantic
waters into the Arctic. It is a very dynamic region where the
properties of the Atlantic waters are affected by lateral and
horizontal mixing. Understanding the ocean dynamics north of Svalbard
is key to understanding the input of salt and heat from the Atlantic
waters to the rest of the Arctic Ocean. My post-doctoral work aimed to
improve our understanding of the circulation and physical processes
affecting the Atlantic waters north of Svalbard, mainly using in situ
data collected as part of the Norwegian Nansen Legacy project. I
studied the seasonal variations of the Atlantic inflow current in the
Arctic from mooring data, and demonstrated the presence of a counter
current on the continental shelf and an intensified bottom current.
Two hydrographic campaigns have documented vertical turbulent mixing
and the dynamics of a temperature front in the Arctic. These different
studies provide a better understanding of ocean dynamics and the
interactions between the ocean, ice and atmosphere in an Arctic in
transition.

Informations dates et horaires

Room: https://cnrs.zoom.us/j/96986193134?pwd=OWtKZnVOd1pGT1hZb3RpZHV3SDl1UT09,
Meeting ID: 969 8619 3134, Passcode: rWK9tU

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