The Effect of Rain-No Rain Intermittency on the Estimation of the Universal Multifractals Model Parameters - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Hydrometeorology Année : 2009

The Effect of Rain-No Rain Intermittency on the Estimation of the Universal Multifractals Model Parameters

Louis de Montera
  • Fonction : Auteur
Laurent Barthès
  • Fonction : Auteur
Cécile Mallet
Peter Golé
  • Fonction : Auteur

Résumé

The multifractal properties of rain are investigated within the framework of universal multifractals. The database used in this study includes measurements performed over several months in different locations by means of a disdrometer, the dual-beam spectropluviometer (DBS). An assessment of the effect of the rain-no rain intermittency shows that the analysis of rain-rate time series may lead to a spurious break in the scaling and to erroneous parameters. The estimation of rain multifractal parameters is, therefore, performed on an event-by-event basis, and they are found to be significantly different from those proposed in scientific literature. In particular, the parameter H, which has often been estimated to be 0, is more likely to be 0.53, thus meaning that rain is a fractionally integrated flux (FIF). Finally, a new model is proposed that simulates high-resolution rain-rate time series based on these new parameters and on a simple threshold.
Fichier principal
Vignette du fichier
2008jhm1040_1.pdf (1.4 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00400833 , version 1 (14-11-2020)

Identifiants

Citer

Louis de Montera, Laurent Barthès, Cécile Mallet, Peter Golé. The Effect of Rain-No Rain Intermittency on the Estimation of the Universal Multifractals Model Parameters. Journal of Hydrometeorology, 2009, 10 (2), pp.493-506. ⟨10.1175/2008JHM1040.1⟩. ⟨hal-00400833⟩
95 Consultations
36 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More