Improvement of surface water quality variables modelling that incorporates a hy...

• Author(s): Gonçalves, A. Manuela ; Costa, Marco
• Date: 2011
• Persistent ID: http://hdl.handle.net/10773/6670
• Origin: RIA - Repositório Institucional da Universidade de Aveiro
• Subject(s): Hydrological basin; Water quality; State-space modelling; Kalman filter; Hydro-meteorological factor
• Document Type: Conference Object
• Language: English

Description

In this work it is constructed a hydro-meteorological factor to improve the adjustment of statistical time series models, such as state space models, of water quality variables by observing hydrological series (recorded in time and space) in a River basin. The hydro-meteorological factor is incorporated as a covariate in multivariate state space models fitted to homogeneous groups of monitoring sites. Additionally, in the modelling process it is considered a latent variable that allows incorporating a structural component, such as seasonality, in a dynamic way.