1. What is the Inflow Rate Between Inter-Isochrone Area?

The Inflow Rate for a given catchment area is the average volume of incoming water in unit time at any interval of time of the day. It is calculated using the inter-isochrone area and time interval.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( I \) — Inflow Rate (m³/s)
• \( A_r \) — Inter-Isochrone Area (m²)
• \( \Delta t \) — Time Interval (s)

Explanation: The formula calculates the inflow rate by multiplying the constant 2.78 with the ratio of inter-isochrone area to time interval.

3. Importance of Inflow Rate Calculation

Details: Accurate inflow rate estimation is crucial for hydrological modeling, flood prediction, and water resource management in catchment areas.

4. Using the Calculator

Tips: Enter inter-isochrone area in square meters and time interval in seconds. All values must be valid (area > 0, time interval > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is inter-isochrone area?
A: Inter-isochrone area divides the watershed area into subareas with distinct runoff translation times.

Q2: Why is the constant 2.78 used in the formula?
A: The constant 2.78 is a conversion factor that accounts for unit consistency in the calculation.

Q3: What are typical values for inflow rate?
A: Inflow rate values vary significantly depending on the catchment area, rainfall intensity, and time interval.

Q4: Can this formula be used for all catchment areas?
A: While generally applicable, specific catchment characteristics may require adjustments to the formula for optimal accuracy.

Q5: How does time interval affect the inflow rate?
A: Shorter time intervals typically result in higher inflow rates as they capture more instantaneous flow variations.