72
S. Kiran and D. R. Micheal
Fig. 3 Relationship between the theoretical and empirical quantiles for annual rainfall
higher and the other listed goodness-of-fit test values are close to that of log-normal
distribution.
5 Conclusion
In this study, we have considered rainfall data recorded in four observation stations
in Sikkim, three from North district, and one from East district. The influence of altitude on rainfall was observed with stations in the mid and lower hills (Chungthang,
Gangtok, and Mangan) receiving more rainfall than the station at higher elevation
(Thangu) where precipitation is predominantly in the form of snow. The annual
rainfall follows either normal or log-normal distribution in stations located at the
mid and lower ranges, and Weibull distribution in stations receiving less rainfall or
at higher elevations. The present study has also revealed that probability distribution function is not only different across the various rain gauge stations within the
S. Kiran and D. R. Micheal
Fig. 3 Relationship between the theoretical and empirical quantiles for annual rainfall
higher and the other listed goodness-of-fit test values are close to that of log-normal
distribution.
5 Conclusion
In this study, we have considered rainfall data recorded in four observation stations
in Sikkim, three from North district, and one from East district. The influence of altitude on rainfall was observed with stations in the mid and lower hills (Chungthang,
Gangtok, and Mangan) receiving more rainfall than the station at higher elevation
(Thangu) where precipitation is predominantly in the form of snow. The annual
rainfall follows either normal or log-normal distribution in stations located at the
mid and lower ranges, and Weibull distribution in stations receiving less rainfall or
at higher elevations. The present study has also revealed that probability distribution function is not only different across the various rain gauge stations within the