Impact of integration time steps of rain drop size distribution on their double-moment normalization: a case study in northern Benin.

AuteurMOUMOUNI, SOUNMAILA
AuteurAKPONI, FULGENCE PAYOT
AuteurZAHIRI, ERIC PASCAL
AuteurLAWIN, AGNIDE EMMANUEL
AuteurGOSSET, MARIELLE
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2023
ResumeThis study analyzed the sensitivity of the double-moment normalization of rain drop size distributions (DSDs) to their integration time steps. Six DSD datasets measured at different integration time steps were modeled by the double-moment normalization method. Six couples of reference moments are used for the normalization. Three DSD models (gamma, generalized gamma and lognormal) are used for modeling. Statistical criteria are used to assess the estimation of the moments of the DSDs made by the models. As results, the analysis highlighted the dependence of the shape function parameters on the DSD integration time step. It is also noted that the three DSD models are well adapted to the data used. Nevertheless, the generalized gamma model is recommended because of the independence of the moment estimation errors with respect to the integration time step, which is not the case for the other models.
DOI10.5802/crgeos.200
Autre identifiantBECDB-13853
URIhttps://dspace.uac.bj/handle/123456789/11840
Languefr
Fait partie deComptes Rendus Géoscience – Sciences de la Planète
SujetRain DSD
SujetDouble-moment normalization
SujetIntegration time steps
SujetUnimodal DSD models
SujetGeneralized gamma
SujetWeather radars
SujetWest Africa rainfall
TitreImpact of integration time steps of rain drop size distribution on their double-moment normalization: a case study in northern Benin.
TypeArticle

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