EGU21-2409, updated on 03 Mar 2021
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

A high resolution three-dimensional model of ocean tides for the pan-arctic region

Alfatih Ali1, Malte Muller1, Laurent Bertino2, and Arne Melson1
Alfatih Ali et al.
  • 1Met Norway, Oslo, Norway (
  • 2Nansen Environmental and Remote Sensing Center, Bergen, Norway

As grid resolutions of operational ocean models are becoming finer and approach closer to the coast, the importance of inclusion of tidal forcing in high resolution operational ocean forecasting systems has increasingly been recognized. In the current work,  we present a 3D general ocean circulation model of ocean tides in the pan-Arctic region at ~3km horizontal grid resolution and 50 hybrid layers in the vertical, thus representing both barotropic and internal tides. The model system is based on the Hybrid Coordinate Ocean Model (HYCOM)  coupled with the Los Alamos Sea Ice Model (CICE). The results showed good agreement when compared with observations from tide gauges and a data-assimilative global barotropic tidal model. Among other results, the evaluation includes results for tidal amplitude and phase of the most energetic constituents (M2, S2, K1 and Q1).   The model system is currently operational and its development is supported by the Copernicus Marine Environment Monitoring Service (CMEMS) where its forecasts are disseminated.

How to cite: Ali, A., Muller, M., Bertino, L., and Melson, A.: A high resolution three-dimensional model of ocean tides for the pan-arctic region, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-2409,, 2021.