DESCRIPTION OF COURSES
AP 631 EVAPOTRANSPIRATION (2L+1P) III
To impart theoretical and practical knowledge about crop ET estimation and measurement
Radiation and its interaction with crop environment and radiation use efficiency, energy balance, its components and their estimation in crop canopy.
Theories of evapotranspiration – concept of evapotranspiration; potential, reference and actual evapotranspiration;
Estimation of potential evapotranspiration using different approaches – empirical, aerodynamic, radiation, Bowen ratio, combination and eddy correlation techniques, factors affecting evapotranspiration – meteorological, soil and cultural.
Thornthwaite’s climatic water balance.
Measurement of evapotranspiration using various types of lysimeters, water use efficiency, irrigation scheduling and yield functions.
Estimation of evapotranspiration using remote sensing technique.
Radiation balance, Thornthwaite’s method, Blaney Criddle method, Radiation (Makkink’s) method, Bowen’s Ratio, Aerodynamic method, Combination (Penman’s) method, Combination (FAO 56) method, Pan Evaporation, Climatic Water Balance, Lysimeter