Change Detection in Climate Data over the Iberian Peninsula

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

Raquel Sebastiao (Autor) Outra; Pedro Pereira Rodrigues (Autor) FMUP; Joao Gama (Autor) FEP

Ata de Conferência Internacional

Título: 2009 IEEE INTERNATIONAL CONFERENCE ON DATA MINING WORKSHOPS (ICDMW 2009)

Páginas: 248-253

9th IEEE International Conference on Data Mining

Miami Beach, FL, DEC 06-09, 2009

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

ID Authenticus: P-003-SSG

DOI: 10.1109/icdmw.2009.27

Abstract (EN): This paper addresses the space-time change detection problem in climate data over the Iberian Peninsula using a 50 years dataset. The data were analyzed concerning the temporal and geographical information, using the following methodology: information about space-time drifts in climate data was obtained by applying a change detection algorithm on all the temporal data available for each physical location considered in this study; the performance and the robustness of this algorithm were then assessed by the McNemar nonparametric statistical test on cluster structures; geographical correlations were inferred using visualization tools and graphical representations of data. Most of the space-temporal drifts detected by the algorithm were confirmed by the results of the McNemar test and are in accordance with visual and graphical representations, supporting the advantage of using inter-disciplinary methods. This analysis also shows that there are locations which do not reveal any change along all the observed years.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6