Multi-Resolution Modeling for Flexible Mesh Coastal-Ocean Models

Type of project

M.Sc.

Contact

Jesper Mariegaard (jem@dhigroup.com)

Topic

  Flexible mesh models allow for varying spatial resolution, but running high-resolution models in operations is often too costly. This project explores techniques for mapping from coarse- to fine-resolution models, such that only the coarse model needs to be run in operations, with the fine-resolution results being inferred via a mapping. The focus is on testing this in the Southern North Sea and Øresund using MIKE 21 HD.

Relevance to DHI

Enabling operational workflows with coarse-resolution models while maintaining high-resolution outputs would significantly reduce runtime and resource requirements. This could allow for long climate scenarios and fast ensemble forecasting.

What is the student's contribution

Develop and test a method for mapping coarse-resolution results to fine-resolution equivalents. Evaluate performance and accuracy tradeoffs. Deliverables: code, test case results, and technical documentation.