Application of statistical methods to analysing of the Pilica river suspended sediment transport depending on discharge-characteristic of a reservoir supply

Poland, as a member state of European Union, is obliged to implement Union Directives, aimed at achieving good ecological state of the environment. Which conforms to standards of EU member states. Sulejow Reservoir is a source of drinking water for Lodz Agglomeration in which severe symptoms of eutrophication have been observed. High catchment surface to reservoir surface ratio and agricultural use of catchment (64% of surface) result in high loads of sediments and nutrients (phosphorus among others) reaching the reservoir through the Pilica River. The aim of this paper is better understanding of processes of the suspended sediment transport by the Pilica River during low and high discharges. For an analysis methods offered by statistical pattern recognition theory has been used. ...

Analysis of the sides lenght of 3rd class horizontal geodetic networks on the basis of data from 56 counties

This paper presents selected geometric characteristics of 3rd class horizon-tal geodetic networks, calculated on the basis of data from 56 counties, and its statistical analysis in relation to the G-1Technical Instructions. The authors also uses the correlation analysis and method of graphs as a tool to determine the degree of linkage between each features. Derived parameters of the average object can be used to create regular models for testing various geodetic aspects ...