105-Rainfall Station Network Optimization Using Entropy Method.

Abstract

Data collection forms the basis for most of the analysis and decision making process in hydrological studies. An efficient data collection network is to be designed so as to minimize the expenditure in data collection, at the same time incorporating its spatial variability. The application of entropy concept which gives a quantitative measure of information is used to express the redundancy in networks, and to derive an optimum network. The present study deals with the methodology based on entropy concept for ranking the stations of a rainfall gauging station network. The application of the methodology to the monthly rainfall values of the rain gauge network stations of United Kingdom is illustrated. The significance of the assumed distribution to the station data series, in identifying the optimum data collection network is also analysed.