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2021WP/VLD-02_Aimie_Moulin_Med_Wave_Coupling – NEMO
wiki:2021WP/VLD-02_Aimie_Moulin_Med_Wave_Coupling

Version 5 (modified by amoulin, 6 months ago) (diff)

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  1. Summary
  2. Preview
  3. Tests
  4. Review

Summary

Action NEMO-Wave coupling in the Mediterranean Sea
PI(S) Aimie Moulin, Emanuela Clementi
Digest
Dependencies
Branch source:/NEMO/branches/{YEAR}/dev_r{REV}_{ACTION_NAME}
Previewer(s) TBD
Reviewer(s) TBD
Ticket #2612

Description

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The wave-current Mediterranean Sea prototype consists on the implementation of a coupled NEMO v4.2 and WW3 modeling system in the Mediterranean Sea, based on the operational CMEMS Med-MFC analysis and forecasting physical system (MedFS).

The aim of the prototype is to assess the impact of wave-current interactions, especially the effect of the wave-induced mixing on the Mediterranean sea circulation and to propose improvements for the next generation CMEMS systems.

The implementation of NEMO trunk in the Mediterranean Sea is done and the setup of the wave model WWIII v6.07 has been finalized. The 2-year simulations for the control experiment without coupling as well as the online coupled system NEMOv4.2-OASIS-WW3 for the Mediterranean sea are on going. The results will be analysed through basin averaged trends and diagnostics, comparison with Insitu (T/S) and satellite (SST) data. Currents, tracers and mixed layer depth modifications are expected when including wave mixing and Langmuir turbulence.

Tested development: Wave-current interaction developments

Stokes drift parameterization (Breivik et al, 2016) Vortex Force Bernoulli Head Pressure term Enhanced mixing by waves in the TKE vertical mixing

Implementation

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Domain: Mediterranean Sea + Atlantic box @ 1/24° and 141 vertical levels Grid(s) and size: 380x1307x141 = 70,029,060 points Time simulated by experiment: 2 years for each experiment (2019-2020) Specific outputs: Daily T/S, UV, MLD Fixed parameterization: key_qco, time splitting, split-explicit free surface, atm. pressure, non-linear bottom friction, EOS-80, MUSCL for tracer adv, bilaplacian lateral diffusion for tracers and momentum, vector form momentum adv, een, no tides Variable parameterizations: Vertical mixing scheme, Wave current interaction, Langmuir (possibly)

WW3: spectral discretization: 30 frequency (log) and 15° in direction, ST4

Documentation updates

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Preview

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Tests

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Review

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