Question
Download Solution PDFSelect the correct option with regard to the following two statements (H1 and H2) pertaining to the hydrograph of a storm in a catchment.
H1: The rising limb of the hydrograph depends on the catchment characteristics only.
H2: The recession limb of the hydrograph depends on the storm characteristics and catchment characteristics.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Hydrograph:
- A hydrograph is a plot between discharge and time at any given section of a river, channel, etc.
- It is a response of a given catchment to the rainfall input.
- The shape of the rising limb of a hydrograph depends on both catchment characteristics and rainfall characteristics.
- The shape of the falling or recession limb of a hydrograph depends only on catchment characteristics.
- The inflation point on the falling limb is often assumed to be the point where direct runoff ends.
- Time of Concentration is the time required by the entire drainage area to contribute to the runoff is called the time of concentration or time required by the most extreme point in the drainage to reach the point of interest.
Last updated on May 28, 2025
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