Estimation of influence of null data on calculation of curves of material well-being

The norms for calculating the provided values of hydrological characteristics contain only the basic methods without taking into account inaccuracy, especially in the part of the maximum and minimum values. Today we propose a simple method for assessing the impact of data exclusion, the number of subsamples and the justification for the assumption of variation in parameters under the conditions of the appearance of new data. Based on the evaluation of the statistical distribution of hydrological characteristics, the inaccuracy is determined.