Areas prone to flooding by inland waters and lakes

Areas prone to flooding by inland waters and lakes:

Areas flooded due to exceptional raise of water table in groundwater, rivers and lakes, affecting adjacent land or areas further away being at the same altitude or lower than the flooding water. It affects housing and industrial sites, agricultural land, transportation network, sewage systems, dams and so on.

Occurrence:

Flat river plains, delta areas, valley bottoms and shorelines.

Physical mapping of areas susceptible to flooding, line for highest recorded level, also division into zones with different susceptibility classes.

Data needs:

Detailed elevation models and measurements in the field;

Areas with certain regulations/ restrictions for different land use / resource use linked to flooding risk.

Constructions for flood control：

Data set on restriction zones on land use/ building/ activities downstream reservoirs in case of reservoir brake-down;

Drainage capacity of ground and soil sealing areas with low drainage capacity.