A method for identifying salient features for regionalization of watersheds

What is it about?

In this study, a method based on exploring the nearest and farthest neighbours of data points is introduced for identifying salient features for regionalization of watersheds.

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Why is it important?

The method used for feature selection or feature weighting in regionalization of watersheds may affect the results of regionalization methods considerably. It can play a key role in forming hydrologically homogeneous regions for regional flood frequency analysis. The proposed method includes options to relate watershed features to flood data records in order to increase the homogeneity of the regions.