A POD reduced-order 4D-Var adaptive mesh ocean modelling approach
نویسندگان
چکیده
A novel Proper Orthogonal Decomposition (POD) inverse model, developed for an adaptive mesh ocean model (the Imperial College Ocean Model, ICOM) is presented here. The new POD model is validated using the Munk gyre flow test case, where it inverts for initial conditions. The optimised velocity fields exhibit overall good agreement with those generated by the full model. The correlation between the inverted and the true velocity is 80% − 98% over the majority of the domain. Error estimation was used to judge quality of reduced adaptive mesh models. The cost function is reduced by 20% of its original value, and further by 70% after the POD bases are updated.
منابع مشابه
A POD reduced - order 4 D - Var adaptive mesh ocean modelling approach 3
A novel proper orthogonal decomposition (POD) inverse model, developed for an adaptive mesh ocean model (the Imperial College Ocean Model, ICOM), is presented here. The new POD model is validated 11 using the Munk gyre flow test case, where it inverts for initial conditions. The optimized velocity fields exhibit overall good agreement with those generated by the full model. The correlation betw...
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