A very important part for the success of applying the isotope method, for all further evaluation activities in connection with the data from surface or ground waters, is a knowledge of the basic data, the knowledge of the climatic conditions of the rainfall for instance. Not only of the amount, density and distribution of the rainfall, but also of the isotopic composition of the rainfall. These data are called input data and are the premises for the interpretation and the evaluation of the output data from ground water and surface water.
Here you see the precipitation Hyderabad, the amount and the distribution all over the years, and here you see the reaction on this rainfall conditions in the ground water and in the ground water body.