Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 16, issue 11
Articles | Volume 16, issue 11
https://doi.org/10.5194/gmd-16-3335-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-3335-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 11
Development and technical paper
 | 
14 Jun 2023
Development and technical paper |  | 14 Jun 2023

Adding sea ice effects to a global operational model (NEMO v3.6) for forecasting total water level: approach and impact

Pengcheng Wang and Natacha B. Bernier

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Latest update: 23 Oct 2025
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Short summary
Effects of sea ice are typically neglected in operational flood forecast systems. In this work, we capture these effects via the addition of a parameterized ice–ocean stress. The parameterization takes advantage of forecast fields from an advanced ice–ocean model and features a novel, consistent representation of the tidal relative ice–ocean velocity. The new parameterization leads to improved forecasts of tides and storm surges in polar regions. Associated physical processes are discussed.
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