Abstraction In Time Given Yield Of Catchment Calculator

Formula Used:

\[ Ab = Y - Ro - \Delta Sv \]

Yield of Catchment (Y):

unit

Observed Flow Volume (Ro):

Cubic Meter per Second

Change in Storage Volumes (ΔSv):

unit

Abstraction in Time (Ab):

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1. What is Abstraction in Time?

Abstraction in Time refers to the water volume extracted for irrigation, water supply, and industrial use, including evaporation losses in surface water bodies on the stream over a specific time period.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Ab = Y - Ro - \Delta Sv \]

Where:

\( Ab \) — Abstraction in Time (unit)
\( Y \) — Yield of Catchment (unit)
\( Ro \) — Observed Flow Volume (Cubic Meter per Second)
\( \Delta Sv \) — Change in Storage Volumes (unit)

Explanation: This formula calculates water abstraction by subtracting observed flow volume and changes in storage from the total catchment yield.

3. Importance of Abstraction Calculation

Details: Accurate abstraction calculation is crucial for water resource management, ensuring sustainable water allocation for various uses while maintaining ecological balance in water systems.

4. Using the Calculator

Tips: Enter Yield of Catchment, Observed Flow Volume, and Change in Storage Volumes. All values must be valid numerical values with appropriate units.

5. Frequently Asked Questions (FAQ)

Q1: What is Yield of Catchment?
A: Yield of Catchment refers to the total water volume generated from a catchment area over a specific time period, influenced by the water balance equation.

Q2: How is Observed Flow Volume measured?
A: Observed Flow Volume is typically measured using flow gauges installed in rivers or streams, recording the quantity of water flowing past a specific point.

Q3: What does Change in Storage Volumes represent?
A: Change in Storage Volumes represents the difference between incoming and outgoing water in storage bodies such as reservoirs, lakes, or artificial storage facilities on the stream.

Q4: Why include evaporation losses in abstraction?
A: Evaporation losses are included because they represent water that is effectively "abstracted" from surface water bodies and unavailable for other uses.

Q5: What are typical units for these measurements?
A: While units may vary, common measurements include cubic meters, cubic meters per second for flow rates, or volume units specific to the catchment area being studied.