Radioatenuacion troposferica pronosticada para diferentes angulos de elevacion del enlace en las ciudades valera y trujillo entre el 2010 y 2014

This research's purpose has been to predict the tropospheric radioattenuation by rain for Valera and Trujillo cities, between 2010 and 2014 by changing the elevation angle of the radio link in order to observe the relationship and the influence it exerts on the radioattenuation, using rainfall's historical data (2000-2009) to obtain the prediction of subsequent periods with the forecasting method Auto Regression Integrated Moving Average (ARIMA) for temporary series. The research is field-type and predictive, its design is considered non-experimental, longitudinal and ex post fact. The project was done in several phases: based on the rainfall data provided by the National System of Hydrological and Meteorological Information and the Meteorological Service of the Air Force of Venezuela, consecutively, the intensity of rain in mm per hour was determined and then used in the radioattenuation's calculation for each city, to finally present the results of the relationship between the radioattenuation and the elevation angle of the radio link when the latter is changed. The obtained results demonstrate that the angle with the lowest radioattenuation for Valera and Trujillo is 30[grados] and the highest level occurs for 60[grados], although no tendency was observed.