1. What is the Equation For Daily Lake Evaporation?

The Equation For Daily Lake Evaporation calculates the amount of water that evaporates from a lake surface over a 24-hour period. It considers various water inputs and outputs including precipitation, surface flows, groundwater flows, transpiration losses, and changes in lake storage.

2. How Does the Calculator Work?

The calculator uses the equation:

Where:

• \( EL \) — Daily Lake Evaporation (Meter)
• \( P \) — Precipitation (Meter)
• \( Vis \) — Daily Surface Inflow (Cubic Meter per Second)
• \( Vos \) — Daily Surface Outflow (Cubic Meter per Second)
• \( Vig \) — Daily Groundwater Inflow (Cubic Meter per Second)
• \( Vog \) — Daily Seepage Outflow (Cubic Meter per Second)
• \( TL \) — Daily Transpiration Loss (Meter)
• \( \Delta SL \) — Increase in Lake Storage in a Day (Meter)

Explanation: The equation accounts for all water inputs and outputs to determine the net evaporation from the lake surface over a daily period.

3. Importance of Daily Lake Evaporation Calculation

Details: Accurate daily lake evaporation calculation is crucial for water resource management, irrigation planning, hydrological studies, and climate change research. It helps in understanding water balance and managing water supplies effectively.

4. Using the Calculator

Tips: Enter all values in their respective units. Ensure all measurements are taken over the same 24-hour period for accurate results. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is daily lake evaporation important?
A: Daily lake evaporation is important for water resource management, irrigation scheduling, and understanding the hydrological cycle of lake systems.

Q2: What factors affect lake evaporation?
A: Temperature, humidity, wind speed, solar radiation, and water surface area are the main factors affecting lake evaporation rates.

Q3: How accurate is this calculation method?
A: This method provides a comprehensive water balance approach but accuracy depends on the precision of input measurements and proper accounting of all water fluxes.

Q4: Can this equation be used for other water bodies?
A: While primarily designed for lakes, the equation can be adapted for reservoirs and large ponds with similar hydrological characteristics.

Q5: What time period should measurements cover?
A: All measurements should cover the same 24-hour period to ensure accurate daily evaporation calculation.