FAO-56 Penman-Monteith Daily ET_𝑜 from Linear Regression Calibrated Hargreaves Equation with Wind Terms in Tropics with Limited Data

Table 1

Local values for the 𝑘_HG and 𝑘₄ parameters of LHGu equation for 𝑢₂ range 0.5–6.0 m/s.

Location	Latitude (°N)	𝑘HG=𝑎×(𝑢2+𝑏)^𝑐			𝑘4=𝛼−𝛽𝑢2+𝛾𝑢^22
		𝑎	𝑏	𝑐	𝛼	𝛽	𝛾
Abidjan	5.25	0.00143	1.6508	0.4046	0.4875	0.3730	0.0174
Accra	5.55	0.00135	1.7953	0.4406	0.4892	0.3924	0.0165
Daloa	6.86	0.00137	1.7375	0.4348	0.7861	0.6029	0.0248
Lome	6.16	0.00142	1.4993	0.4310	0.5616	0.4429	0.0204