4D-Var data assimilation system for a coupled physical biological model

Journal of Earth system science

J M Lellouche1¹  W Eifler1¹  M Ouberdous1¹ 

[1] Joint Research Centre of the European Commission, Space Applications Institute, Marine Environment Unit, TP 690, I-21020 Ispra (VA), Italy.$$

关键词: Data assimilation;    parameter estimation;    bio-physical model.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

A 3-compartment model of phytoplankton growth dynamics has been coupled with a primitive-equation circulation model to better understand and quantify physical and biological processes in the Adriatic Sea. This paper presents the development and application of a data assimilation procedure based on optimal control theory. The aim of the procedure is to identify a set of model coefficient values that ensures the best fit between data and model results by minimizing a function that measures model and data discrepancies. In this sense, twin experiments have been successfully implemented in order to have a better estimation of biological model parameters and biological initial conditions.

【 授权许可】

Unknown