Data/hora: 03/06/2024 06:41:00

Provedor de dados: | 5
País: | France
Título: | Analyse statistique de l'évolution temporelle de paramètres hydrobiologiques dans les bassins du port du Havre
Autores: | Menesguen, Alain; Laurec, Alain.
Data: | 1984
Ano: | 1984
Palavras-chave: | Analyse spectrale; Désaisonnalisation; Séries temporelles multivariées; Eutrophisation; Spectral analysis; Deseasonalisation; Multivariate time-series; Nutrient enrichment.
Resumo: | The study of the spatial structure and temporal evolution of several hydrobiological parameters in a flooding docks system provided a good illustration for the analytical power of a methodology dealing with the statistical processing of multivariate timeseries. This technique can be characterized by prior extraction of the trends, treated separately as ordinary multivariate data, and by a consequent multi-spectral analysis of the residual signais. This procedure offers the advantage of clarifying the analysis of the major features of the phenomenon (i.e. the trends) and unmasking the subtle spatio-temporal structure through the residual signais. The application on Le Havre harbour showed a strong enrichment in nutrients and also a plausible but partial origin for this enrichment in the form of perturbations sources. These can be distinguished by their frequential signature and the associated path of propagation.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/00113/22466/20147.pdf
Editor: | Gauthier-Villars
Relação: | http://archimer.ifremer.fr/doc/00113/22466/
Formato: | application/pdf
Fonte: | Oceanologica Acta (0399-1784) (Gauthier-Villars), 1984 , Vol. 7 , N. 1 , P. 53-61
Fonte: | Gauthier-Villars