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A unit hydrograph has
- a)one unit of peak discharge
- b)one unit of rainfall duration
- c)one unit of direct runoff
- d)one unit of the time base of direct runoff
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A unit hydrograph hasa)one unit of peak dischargeb)one unit of rainfal...
Unit Hydrograph Explanation:
Unit hydrograph is a hydrological tool used to represent the response of a watershed to a unit input of rainfall. It helps in predicting the direct runoff hydrograph resulting from a given rainfall event.
Key Components of a Unit Hydrograph:
- One unit of direct runoff: This is the key component of a unit hydrograph. It represents the total volume of direct runoff generated by a unit input of rainfall over a specific watershed area.
- One unit of peak discharge: The peak discharge is the maximum flow rate in the hydrograph. In a unit hydrograph, the peak discharge is normalized to one unit for ease of comparison and analysis.
- One unit of rainfall duration: This represents the duration of the unit rainfall input that results in the generation of the unit direct runoff. It helps in understanding the time distribution of runoff.
- One unit of the time base of direct runoff: The time base of direct runoff is the time interval between the start and end of direct runoff. In a unit hydrograph, this time base is normalized to one unit for standardization purposes.
Conclusion:
In summary, a unit hydrograph consists of one unit of direct runoff, which is the total volume of runoff generated by a unit input of rainfall. This component is crucial in understanding the response of a watershed to different rainfall events and is fundamental in hydrological analysis and modeling.
Unit hydrograph is a hydrological tool used to represent the response of a watershed to a unit input of rainfall. It helps in predicting the direct runoff hydrograph resulting from a given rainfall event.
Key Components of a Unit Hydrograph:
- One unit of direct runoff: This is the key component of a unit hydrograph. It represents the total volume of direct runoff generated by a unit input of rainfall over a specific watershed area.
- One unit of peak discharge: The peak discharge is the maximum flow rate in the hydrograph. In a unit hydrograph, the peak discharge is normalized to one unit for ease of comparison and analysis.
- One unit of rainfall duration: This represents the duration of the unit rainfall input that results in the generation of the unit direct runoff. It helps in understanding the time distribution of runoff.
- One unit of the time base of direct runoff: The time base of direct runoff is the time interval between the start and end of direct runoff. In a unit hydrograph, this time base is normalized to one unit for standardization purposes.
Conclusion:
In summary, a unit hydrograph consists of one unit of direct runoff, which is the total volume of runoff generated by a unit input of rainfall. This component is crucial in understanding the response of a watershed to different rainfall events and is fundamental in hydrological analysis and modeling.
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