Title :
Comparison between empirical lognormal and gamma rain drop-size distribution models for Indian region
Author :
Vidyarthi, Anurag ; Jassal, B.S. ; Gowri, R. ; Shukla, A.K.
Author_Institution :
Dept. of Electron. & Commun. Eng., Graphic Era Univ., Dehradun, India
Abstract :
The disdrometer data on rain drop sizes, collected at Ahmedabad (India), has been analyzed to develop empirical model on drop-size distribution (DSD). Analyses has been carried out to find suitability of lognormal or gamma distribution. The lognormal distribution has been found to give better correlation. The data has been analysed on annual and monthly basis to find out seasonal variability. Statistical analysis on rate of rain fall was carried out on monthly and annual basis to derive rain rate exceedance characteristic. August appears to be worst month from the attenuation point of view.
Keywords :
atmospheric techniques; gamma distribution; log normal distribution; rain; statistical analysis; Ahmedabad; Indian region; correlation analysis; data analysis; disdrometer data; empirical lognormal rain drop-size distribution model; gamma rain drop-size distribution model; rain fall rate; seasonal variability analysis; statistical analysis; Attenuation; Correlation; Data models; Mathematical model; Rain; Shape; Software; Drop-size distribution; Empirical rain model; Microwave propagation; Rain induced attenuation;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
