Analysis of the critical infrastructure using very high resolution imagery data

The article presents the method of analysis of critical infrastructure, basing on the method of detection and identification of recognized objects applied very high resolution imagery data. Authors described the informative contents of both aerial and satellite images. They also showed, that factor usefulness of satellite imageries, is not their high measuring possibilities but the limited interpretative possibilities. Special attention was also paid on radiometrical and spectral resolution of gaining imageries as a critical factors in interpretation of aerial and satellite images process. In the paper the analytic procedures of images as well as using of author's tools to the semi-automatic interpretation of images, were introduced. Presented method includes: the analysis of problem and the definition of interpretative aim of analysis, the selection of source materials, semi-automatic as well as manual interpretation, the results processing in environment of Geographic Information Systems and making accessible data. According to designed method the results of spatial analysis are published with application of WWW servers as well as in the image map form, which is created through cartographical study of ortophotomap, enriched with information coming from other spatial data sources. ...

Critical infrastructure and reliability of wastewater drain and wastewater treatment system in adverse weather conditions

Intense, prolonged rainfall combined with low capacity and stuffy storm-water drainage system may be the cause of severe economic losses as a result of the presence of inundation, flooding of urban areas, or washout the surface of the ground. There are also failures on wastewater treatment plant. Flash runoff from urban area can cause damage of wastewater treatment plant components, hydraulic overload and affect on the process of biological treatment by changing the quantitative and qualitative parameters of the influent.The purpose of this article is to present the experience gained in the operation of the wastewater treatment plant in adverse weather conditions and indicate lack of classification this type of objects as objects of critical infrastructure that is dangerous to the life, health, property or the environment.     ...