A 24 hour storm occurred over a catchment with 1.8 km2 area and the total rainfall observed was 10 cm. An infiltration capacity of 1 cm/hr initially and finally 0.3 cm/hr is obtained from Horton's curve with k = 5 hr-1. An IMD pan installed in the catchment indicated a decrease of 0.6 cm in the water level during 24 hours of its operation. What is the runoff from the catchment (in m3)? Assume pan coefficient = 0.7.

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