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In the design process of Earth-space link telecommunication systems at higher frequencies, the precise estimation of attenuation due to rain which depends on rain height is important. This study examines two statistical distribution models for freezing height level over Durban, South Africa, using 5 years data and then studied the monthly, seasonal and annual variations using the parameters estimated...
One of the important limitation in designing Earth-space link telecommunication systems operating at frequencies above 10 GHz is attenuation due to rain which depends on rain height. This study observes Three-parameter Dagum distribution on the Freezing Height Level (FHL) using averaged 5-year data over Durban. The distribution shows a good fit with Root Mean Square Error of about 0.2613 when compared...
In this paper, 4-year precipitation data obtained from Tropical Rain Measuring Mission-Precipitation Radar (TRMM-PR) satellite were processed and used to determine the distribution of rain height based on 00C isotherm height over Durban in South Africa. The results show that there is a strong variation of bright-band height over the years of observation and will mostly lie between 3639 m and 4197...
One minute rainfall rates are a key tool for rain attenuation modeling. Availability of this data is still very scarce worldwide, especially in the tropics with insufficient propagation measurement. The scenario at the tropical and the equatorial locations is of concern due to the nature of the climate which is characterized by high rainfall intensity, enhanced frequencies of rain occurrence and the...
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