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Change Detection in Climate Data over the Iberian Peninsula

Title
Change Detection in Climate Data over the Iberian Peninsula
Type
Article in International Conference Proceedings Book
Year
2009
Authors
Raquel Sebastiao
(Author)
Other
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Joao Gama
(Author)
FEP
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Conference proceedings International
Pages: 248-253
9th IEEE International Conference on Data Mining
Miami Beach, FL, DEC 06-09, 2009
Scientific classification
FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering
Other information
Authenticus ID: P-003-SSG
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.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
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