Natural Flow Equation:
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Natural Flow Volume is the quantity of water that would have flowed in a river past a particular point in a particular period, unaffected by human interventions such as irrigation, domestic water supply, and industrial use.
The calculator uses the Natural Flow equation:
Where:
Explanation: The equation calculates the natural water flow by subtracting the return flow volume from the total catchment yield.
Details: Accurate natural flow estimation is crucial for water resource management, environmental impact assessments, and understanding the baseline hydrological conditions of a river system.
Tips: Enter yield of catchment and volume of return flow in m³/s. Both values must be non-negative numbers.
Q1: What is Yield of Catchment?
A: Yield of Catchment at a time period is influenced by the water balance equation and represents the total water available from the catchment area.
Q2: What constitutes Return Flow?
A: Return Flow includes water that returns to the river system after use for irrigation, domestic water supply, and industrial purposes.
Q3: Why is Natural Flow Volume important?
A: It helps in understanding the natural hydrological regime, which is essential for environmental flow assessments and sustainable water resource planning.
Q4: Are there limitations to this calculation?
A: The calculation assumes accurate measurement of both yield and return flow, and may not account for all hydrological complexities in certain watersheds.
Q5: How frequently should these calculations be performed?
A: Regular calculations are recommended, especially during different seasons, to account for temporal variations in water availability and usage patterns.