Choice of acceptable intervals of types and values of tomographic factors as the possibilities to detemine the reliability zones of the transferred information of continuous features measured in point

In this paper there is a proposition of different ways of construction of distribution model of phenomenon, than the ones in which it is assumed that tha spatial distribution of parameters is described by the same function of distribution in each place of the area. It was assumed that the closer the measurement point is the probability that information transfer in the neighborhood is correct, is greater. Secondly, it was asumed that in the areas of similar topographic conditions, informtaion transfer of the value of parameter measured in point to its surroundings is more probable than when other factors change e.g. land cover, height above the sea level etc. Present proposition is aggregate geometric basic units of the system in adequate areas on the grounds of their affiliation to certain regions. Such areas will have similar topographic conditions. They can also be a basis for the analysis of distribution of other environment-dependent phenomena, such as different types of pollution, soil erosion, climate, vegetation and so on. Classification can be used to evaluate the usability of areas for different purposes, forecasting the outcome of investments and the like. Selectin of the reference unit, which fulfill the needs, details level and accuracy of the compilation scale are a very important point of the construction of the spatial information system.