MPAS-Ocean Shallow Water Meshes for Model Verification

Planar hexagonal mesh files in NetCDF format support a verification suite of shallow water test cases for ocean models. The data includes mesh plots showing cell centers, edge centers, vertices, and orientation of normal vectors, as well as plots of state variables and spatial operators. Siddhartha Bishnu of MIT authored this resource associated with the Rotating_Shallow_Water_Verification_Suite GitHub repository.

Use Cases

• Verifying the barotropic solver of ocean models based on the hexagonal mesh files.
• Analyzing interpolation error for state variables moved between cell centers, edges, and vertices.
• Evaluating the convergence of various spatial operators of the TRiSK scheme applied to state variables.
• Comparing high-resolution and low-resolution meshes for shallow water simulations.

Strengths

• Includes multiple visualization outputs such as mesh plots and error plots for verification.
• Associated with a specific GitHub repository (Rotating_Shallow_Water_Verification_Suite) for code and context.
• Designed for a specific, well-defined verification suite of shallow water test cases.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Massachusetts Institute of Technology

Collection Method

Likely generated as part of developing and verifying the MPAS-Ocean model's shallow water component.