The peak flow of a flood hydrograph caused by an isolated storm was observed to be 100 m³/s. The storm had a duration of 8 hours and total depth of rainfall was 7 cm. If in the above storm, the total rainfall was 9.5 cm in the same duration of 8 hours, then the flood peak discharge is found to be increased by 40%. Considering the base flow as 20 m³/s, the value of -index for the given catchment is cm/h (round off to two decimal places).
The peak flow of a flood hydrograph caused by an isolated storm was observed to be 100 m³/s. The storm had a duration of 8 hours and total depth of rainfall was 7 cm. If in the above storm, the total rainfall was 9.5 cm in the same duration of 8 hours, then the flood peak discharge is found to be increased by 40%. Considering the base flow as 20 m³/s, the value of -index for the given catchment is cm/h (round off to two decimal places).
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Hydrology problem, please solve it
![The peak flow of a flood hydrograph caused by an isolated storm was observed to be
100 m³/s. The storm had a duration of 8 hours and total depth of rainfall was 7 cm. If in
the above storm, the total rainfall was 9.5 cm in the same duration of 8 hours, then the
flood peak discharge is found to be increased by 40%. Considering the base flow as 20
m³/s, the value of O-index for the given catchment is cm/h (round off to two decimal
places).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc90ac6e-4521-4827-b7bd-b53c73c91413%2Fc21dc207-31f0-4839-9196-53db01972daa%2Fclurb6b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The peak flow of a flood hydrograph caused by an isolated storm was observed to be
100 m³/s. The storm had a duration of 8 hours and total depth of rainfall was 7 cm. If in
the above storm, the total rainfall was 9.5 cm in the same duration of 8 hours, then the
flood peak discharge is found to be increased by 40%. Considering the base flow as 20
m³/s, the value of O-index for the given catchment is cm/h (round off to two decimal
places).
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