Weekly rainfall frequency analysis for Junagadh of Gujarat State of India: A case study

SMEMAX transformation, its modified versions and power transformation were applied to weekly rainfall records tested previously for independence, homogeneity and completeness for their capability of predicting rainfall amount at various probability levels. Computationally all the three versions of SMEMAX were equally simple and easy for analyzing the frequency. They yielded identical results. Even though SMEMAX transformation reduced C_s to near zero; their distribution was not a true normal distribution. In most of the cases C k was quite different from 3. Power transformation is the most suitable among all three versions of SMEMAX transformations in transforming the rainfall data to a normal distribution. C k could play an important role at low probability levels. Leaky law was found to be appropriate for handling zero values in the rainfall series.