Classification of rainfall radar images using the scattering transform - Archive ouverte HAL Access content directly
Journal Articles Journal of Hydrology Year : 2016

Classification of rainfall radar images using the scattering transform

(1) , (1) , (2) , (2)
1
2

Abstract

The classification of rainfall fields has mainly focused on the split between convective and stratiform rainfall fields. In the present case study, the wavelet-based scattering transform is used to classify rainfall events observed by a weather radar. This very recent method has, to the best of the authors’ knowledge, not yet been applied for such a purpose. This method considers the spatial properties of rainfall radar images. This case study regroups 34 rainfall periods recorded over the Nantes region (western France) during 23 days in both 2009 and 2012. These periods display different characteristics in terms of duration and type of rainfall field. A reference configuration of the scattering transform has been evaluated and compared to various configurations in order to approximate the application conditions most appropriate to this case study. This evaluation is performed by a leave-one-out cross validation. A global accuracy of 93.5% of well classified images is obtained in the reference conditions which is an encouraging result. The temporal sampling of the rainfall fields is an important aspect of the classification process.
Not file

Dates and versions

hal-01397741 , version 1 (16-11-2016)

Licence

Attribution - NonCommercial - CC BY 4.0

Identifiers

Cite

Gerard Busquets, Mathieu Lagrange, Hervé Andrieu, Isabelle Emmanuel. Classification of rainfall radar images using the scattering transform. Journal of Hydrology, 2016, ⟨10.1016/j.jhydrol.2016.06.063⟩. ⟨hal-01397741⟩
193 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More