Article(electronic)#1November 1, 2023
Variational Data Assimilation for Ocean Thermodynamics Model and Sensitivity of Marine Characteristics to Observation Errors
In: Izvestija Rossijskoj Akademii Nauk. Fizika atmosfery i okeana, Volume 59, Issue 6, p. 815-824
The methodology of variational assimilation of observational data for the restoration of the initial state and heat fluxes for the mathematical model of sea thermodynamics is presented. An algorithm is developed for estimating the sensitivity of a model solution to errors in observational data. Calculation of the gradient of the response function of the model solution is based on the use of the Hessian of the cost functional. The results of numerical experiments for the Black Sea dynamics model developed at INM RAS are presented.