16. Evaporation Process
The evaporation process is a key component of the hydrological cycle, significantly affecting water resources engineering. Understanding the factors influencing evaporation, methods for measuring and estimating it, and techniques for reducing evaporation losses is crucial for effective water management. Additionally, evapotranspiration's distinct role in the water cycle emphasizes its importance for agricultural and environmental planning.
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What we have learnt
- Evaporation is influenced by various climatic factors such as temperature, humidity, wind speed, and solar radiation.
- Multiple methods, including the Class A Evaporation Pan and energy budget methods, exist for measuring and estimating evaporation.
- Evapotranspiration represents the combined loss of water from soil and vegetation and has distinct potential and actual measurements.
Key Concepts
- -- Evaporation
- The process by which water changes from liquid to vapor due to energy absorption.
- -- Evapotranspiration
- The combined loss of water from soil through evaporation and from vegetation through transpiration.
- -- Class A Evaporation Pan
- A standard instrument used to measure evaporation in hydrological studies.
- -- Potential Evapotranspiration (PET)
- Maximum possible evapotranspiration that can occur under optimal water supply conditions.
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