### Analiza statystyczna głównych parametrów hydrogeologicznych południowej części synkliny brzeżnej

#### Abstract

STATISTICAL ANALYSIS OF MAIN HYDROGEOLOGICAL PARAMETERS IN THE SOUTHERN PART OF THE MARGINAL SYNCLINE

Summary

In the present paper there are statistically analysed data concerning the filtration coefficient “k” and the unit yield coefficient “q” received after test pumpings made in the southern area of the marginal syncline.

82 observations have been analyzed as to the filtration coefficient “k”, 76 as to the unit yield coefficient “q”, which have also been arranged as the separating ranges on the table I. On the tables II and III there are given the separating ranges “k” and “q” for the individual lithological types. Comparing the separating ranges and distribution curves one may state that so the curve for “k”, as well as that for “q” are logarithmical curves after a formula Y = a-b log x (for distribution curve k y = 48-34 log k, for distribution curve q y = 6-2, 7log q), thus, their distribution is not a normal one. The changeability coefficients of parametres “k” and “q: computed after a formula:

V = (σ/x) • 100 (Tab. IV)

are also compared.

Changeability of these parameters is in general high, simultaneously, however, it may be seen that during examination of various types, the water-bearing changeability of the filtration coefficient (vk) is little lower, than changeability of unit yield (v). The changeability coefficients of regions having approximate values of parameters are, however, considerably diverse for individual regions.

Summary

In the present paper there are statistically analysed data concerning the filtration coefficient “k” and the unit yield coefficient “q” received after test pumpings made in the southern area of the marginal syncline.

82 observations have been analyzed as to the filtration coefficient “k”, 76 as to the unit yield coefficient “q”, which have also been arranged as the separating ranges on the table I. On the tables II and III there are given the separating ranges “k” and “q” for the individual lithological types. Comparing the separating ranges and distribution curves one may state that so the curve for “k”, as well as that for “q” are logarithmical curves after a formula Y = a-b log x (for distribution curve k y = 48-34 log k, for distribution curve q y = 6-2, 7log q), thus, their distribution is not a normal one. The changeability coefficients of parametres “k” and “q: computed after a formula:

V = (σ/x) • 100 (Tab. IV)

are also compared.

Changeability of these parameters is in general high, simultaneously, however, it may be seen that during examination of various types, the water-bearing changeability of the filtration coefficient (vk) is little lower, than changeability of unit yield (v). The changeability coefficients of regions having approximate values of parameters are, however, considerably diverse for individual regions.