The Penman equation is used primarily for estimating
- ARunoff
- BSoil moisture content
- CEvapotranspirationCorrect
- DGroundwater recharge
Solution
Concept
Penman equation for evapotranspiration estimation
Formula
NONE
Step-by-step solution
1. The Penman equation is a standard hydrological equation combining energy balance and mass transfer principles. 2. It is widely used to calculate potential evapotranspiration from meteorological data. Answer: C
Explanation
The Penman equation is a fundamental hydrological formula that combines energy balance and mass transfer principles to estimate evapotranspiration. It uses climatological data such as radiation, temperature, humidity, and wind speed to calculate water loss. Therefore, option C is the correct answer.
Why the other options are wrong
A) Runoff is estimated using hydrological methods like the rational formula rather than Penman's equation. D) Groundwater recharge is estimated using water balance or tracer methods.
Shortcut
Penman equation combines energy balance and mass transfer to calculate Evapotranspiration.
Common mistake
Confusing Penman's equation with runoff estimation methods or soil moisture formulas.
Correct answer: C) Evapotranspiration