Improvement of surface water quality variables modelling that incorporates a hydro-meteorological factor: a state-space approach

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 incorpor...

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Bibliographic Details
Main Author: Gonçalves, A. Manuela (author)
Other Authors: Costa, Marco (author)
Format: conferenceObject
Language:eng
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/10773/6670
Country:Portugal
Oai:oai:ria.ua.pt:10773/6670
Description
Summary: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.