Modeling Rain Rate Distribution Per Diameter Class from Disdrometer Data Collected in Northern Benin (AMMA Campaign): A New Relationship Between Radar Reflectivity and Rainfall Rate.

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AuteurKOUGBEAGBEDE, HILAIRE
AuteurHOUNGNINOU, BODOUN ETIENNE
AuteurMOUMOUNI, SOUNMAILA
Date d'ajout2026-06-02T16:06:57Z
Date de disponibilite2026-06-02T16:06:57Z
Date de publication2017
ResumeWe analyzed the DSD with a new function R(D) which is equal to the rain rate per interval of raindrop diameters. The expressions of some weather variables (radar reflectivity Z, liquid water content W and rainfall rate RT ) were written with the function. The disdrometer data collected in northern of Benin during the African Monsoon Multidisciplinary Analysis (AMMA), were divided into two samples: DATA A and DATA B written in rain rate distribution per diameter class form (R-DSD). The R-DSD of DATA A classified by intervals of rainfall rates are averaged. Gamma function with three parameters (R T , Dc and μ) models these averaged R-DSD. Various relations are established between the parameters of these averaged R-DSD. Thus, when the moments of these R-DSD are parameterized only by the rain rate RT , we make a relationship between the radar reflectivity Z and rain rate RT . Using the sample DATA B allows us to estimate Z by this relation, on one hand, and by the classical Z-R T relation. The comparison of the two estimations allows us to state that the new Z-RT relation is in the same order as the classical Z-R T relation.
Autre identifiantBECDB-4786
URIhttps://dspace.uac.bj/handle/123456789/4487
Languefr
Fait partie deInternational Journal of Research and Innovations in Earth Science
SujetDSD
SujetRadar Reflectivity
SujetRainfall Rate
SujetDisdrometer
SujetAMMA
TitreModeling Rain Rate Distribution Per Diameter Class from Disdrometer Data Collected in Northern Benin (AMMA Campaign): A New Relationship Between Radar Reflectivity and Rainfall Rate.
TypeArticle

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