Regional Ocean Modeling in the turbulence resolving limit
Abstract
Approved for Public AccessThis project proposes the further development and application of the regional ocean modeling system (ROMS) at UCLA. UCLA ROMS is primarily used for process studies in the ocean, using an efficient code base, Using our well established nesting approach, we re proposing to push the limits of realistic ocean modeling in transient flow environments and complex topography. The grid resolutions that we are aiming for are typically reserved for Large Eddy Simulation (LES) models which are typically limited to simple, flat bottom topographies and lateral boundary conditions. Increased spatial resolution makes it possible to resolve physical processes that have to be parameterized in the current class of very high resolution ocean simulations. These processes include wave-wave, wave-eddy interactions, vertical shear instabilities, symmetrical and inertial instabilities, and many more. In orderto support these simulations at spatialresolutions that are currently non-existent for realistic simulations, we propose further code development of UCLA ROMS which will build on existing efforts that have been, in part, supported by existing and past ONR funding. An ongoing process of bringing ROMS into the 21st century from its roots in fortran77 is underway which is improving the ease of use and maintenance as well as a possible future port into another programming language. While the existing functionality of UCLA ROMS includes a non-hydrostatic kernel, which is essential to the simulations at ultra high resolutions, further development is necessary to improve efficiency and user friendliness.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 09, 2024
- Source ID
- N000142412692
Entities
People
- Maarten Molemaker
Organizations
- Office of Naval Research
- United States Navy
- University of California, Los Angeles