Aim of the study:
The study aims to simulate the extent and depth of fluvial and pluvial flooding under different scenarios using the 2D hydraulic MIKE+ model in combination with geographic information systems (GIS).

Material and methods:
As for the fluvial floods, we used steady-state flow conditions for three flood scenarios (Q₁₀, Q₁₀₀, and Q₁₀₀₀). The modeled flood maps were compared to official flood maps created under the second cycle of EU Floods Directive (2007). Regarding the pluvial flooding, we used the rain-on-grid method, where the rainfall input was set to three constant intensities (20, 40, and 60 mm/hour) under two scenarios: fully saturated soils and infiltration losses. Study area was a 3.68 km section of the Teplica River in western Slovakia.

Results and conclusions:
Based on the results, the flood extent difference against the official flood maps was 0.009, 0.075, and 0.123 km² for Q₁₀, Q₁₀₀, and Q₁₀₀₀, respectively. In case of 20, 40, and 60 mm/hour rainfall scenarios and fully saturated soils, 13.5, 22.1, and 29.2% of the domain, respectively, had flow depths between 0.005‒0.1 m, while 2.0, 4.2, and 6.1% of the domain had flow depths above 0.1 m. In case of 20, 40, and 60 mm/hour rainfall scenarios with infiltration losses, 6.0, 14.6, and 22.7% of the domain, respectively, had flow depths between 0.005‒0.1 m, while 0.4, 2.5, and 4.5% of the domain had flow depths above 0.1 m. When the infiltration rates of land cover classes are applied, pluvial flood extent decreases by 58.2%, 34.4%, and 23.2% for the 20, 40, and 60 mm/hour rainfall scenario, respectively.