Seamless Multiscale Forecasting: Hybridizable Unstructured-mesh Modeling and Conservative Two-way Nesting

Lead PI: Pierre Lermusiaux, Massachusetts Institute of Technology
Start Year: 2015 | Duration: 3 Years
Partners: Naval Research Laboratory

One of our research thrusts is to derive and apply advanced techniques for multiscale modeling of tidal-to-mesoscale processes over regional domains (nearshore-coastal-basin) with complex geometries including shallow seas with strong tides, steep shelfbreaks with fronts, and deep ocean interactions. On the one hand, our conservative implicit two-way nesting for realistic multi-resolution modeling has enabled such high-fidelity coupled multiscale dynamics studies. On the other hand, a high-order multi-dynamics modeling capability based on novel hybridizable discontinuous Galerkin (HDG) numerical schemes is also promising for seamless conservative multi-resolution forecasting. Our overall goal for this NOPP project is to improve, utilize and verify: (i) HYCOM downscaling schemes and conservative two-way nesting schemes for seamless multiscale forecasting and dynamical analyses of realistic coupled physics at abrupt topography; and, (ii) high-order non-hydrostatic HDG schemes for high-fidelity, conservative, and efficient multi-dynamics modeling.

Annual PI Reports:
FY 2016 PI Report