In recent years Poland has observed climate changes, which entail several weather anomalies, particularly visible during the summer in numerous floods and inundations. The state policy based on the Directive of the European Parliament dated 23^rd October 2007 on the assessment and management of flood risks [2007/60/EC] covers extensive actions aimed at preventing floods and minimising their consequences. The most important action is the project entitled “IT System of the Country’s Protection against Extreme Hazards” (ISOK), which is executed under the patronage of GUGiK (Head Office for Geodesy and Cartography) in cooperation with KZGW (National Water Management Authority) and IMiGW (Institute of Meteorology and Water Management). The principal objective of the project is to build an electronic IT platform to serve as the main tool of crisis management. From the perspective of the subject of this paper, it is important to specify the basic elements of the platform. They include inventory and updating of the existing databases and references, and development of risk and hazard maps. The scope of this project covers the areas with the highest risk, located near the reception basins of the main rivers, omitting the less hazardous rivers and streams. The main objective of this publication is to draw attention to the need for expansion of the ISOK databases with information from areas not covered by the project but regularly flooded as a result of local inundations. This problem has been contemplated from the legal, technical, and economic perspective.

175-184