Equation For Linear Storage Or Linear Reservoir:
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The Equation For Linear Storage Or Linear Reservoir describes the relationship between total storage in a channel reach and outflow rate. It provides a fundamental approach to understanding water storage dynamics in hydrological systems.
The calculator uses the linear storage equation:
Where:
Explanation: The equation represents a linear relationship where storage is directly proportional to outflow rate through a constant factor specific to the catchment.
Details: Accurate storage estimation is crucial for flood forecasting, reservoir management, and understanding hydrological responses in watershed systems.
Tips: Enter constant K (dimensionless) and outflow rate in m³/s. Both values must be positive numbers greater than zero.
Q1: What does constant K represent?
A: Constant K is specific to the catchment and is determined by flood hydrograph characteristics, representing the storage-outflow relationship.
Q2: When is the linear storage assumption valid?
A: The linear assumption works well for many natural systems where storage and outflow maintain a proportional relationship.
Q3: How is constant K determined for a catchment?
A: Constant K is typically derived from analysis of historical flood hydrographs and storage-outflow relationships for the specific watershed.
Q4: What are typical units for this calculation?
A: Storage is typically measured in cubic meters (m³) while outflow rate is in cubic meters per second (m³/s).
Q5: Are there limitations to this equation?
A: The linear assumption may not hold for complex hydrological systems with non-linear storage-outflow relationships or rapidly changing conditions.