return period

ESTIMATION OF DAILY RUNOFF COEFFICIENT OF THE PERVIOUS SURFACES FOR THE CLIMATE CONDITIONS OF THE CITY OF LVIV

The method of calculation of daily runoff coefficients based on the SCS USDA curve number method is presented in this paper. The calculated values ​​of daily runoff coefficients for climatic and geological conditions of the city of Lviv for maximum daily rainfall events with a return period of 0.1 – 5 years are obtained.