2005
DOI: 10.3402/tellusa.v57i3.14672
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Analysis and downscaling multi-model seasonal forecasts in Peru using self-organizing maps

Abstract: We present an application of self-organizing maps (SOMs) for analysing multi-model ensemble seasonal forecasts from the DEMETER project in the tropical area of Northern Peru. The SOM is an automatic data-mining clustering technique, which allows us to summarize a high-dimensional data space in terms of a set of reference vectors (cluster centroids). Moreover, it has outstanding analysis and visualization properties, because the reference vectors can be projected into a two-dimensional lattice, preserving their… Show more

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Cited by 26 publications
(36 citation statements)
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“…Solman and Nuñez 1999;Gutiérrez et al 2004) have developed and used statistical downscaling methods to predict daily precipitation or temperature at local scale (weather station) in South America. The present study is a contribution to fill this gap.…”
Section: Discussionmentioning
confidence: 99%
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“…Solman and Nuñez 1999;Gutiérrez et al 2004) have developed and used statistical downscaling methods to predict daily precipitation or temperature at local scale (weather station) in South America. The present study is a contribution to fill this gap.…”
Section: Discussionmentioning
confidence: 99%
“…In the following, we will compare the performance of two often-used techniques: k-means (Gutiérrez et al 2004) and the SOM (Self-Organizing Maps; Hewitson and Crane 2006). While other methods (analogue and k-nearest neighbours) have also been implemented, we only discuss these two clustering methods, which gave the best results.…”
Section: The Classification Proceduresmentioning
confidence: 99%
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