Impact of ocean vertical mixing parameterization on Arctic sea ice and upper ocean properties using the NEMO-SI3 model
Geoscientific Model Development, August 2024
with A. M. Treguier, C. Lique, C. de Boyer Montégut, F. Massonnet, T. Fichefet & A. Barthélemy
Abstract
We evaluate the vertical turbulent kinetic energy (TKE) mixing scheme of the NEMO-SI3 ocean–sea ice general circulation model in sea ice-covered regions of the Arctic Ocean. Specifically, we assess the parameters involved in the TKE mixed layer penetration (MLP) parameterization. This ad hoc parameterization aims to capture processes such as near-inertial oscillations, ocean swells, and waves that impact the ocean surface boundary layer, which are often not well represented in the default TKE scheme. We evaluate this parameterization for the first time in three regions of the Arctic Ocean: the Makarov, Eurasian, and Canada Basins.