Normalized Water Content

Normalized water content, abbreviated as \(\Theta\), also called effective saturation, a dimensionless number, is the water content for which the gradient becomes zero.

 

Normalized water content formula
\(\large{ \Theta = \frac { \theta \;-\; \theta_r } { \theta_s \;-\; \theta_r } }\)
Symbol	English	Metric
\(\large{ \Theta }\)  (Greek symbol Theta) = normalized water content	\(\large{dimensionless}\)
\(\large{ \theta_r }\)  (Greek symbol theta) = residual water content	\(\large{ft^3}\)	\(\large{m^3}\)
\(\large{ \theta_s }\)  (Greek symbol theta) = saturated water content	\(\large{ft^3}\)	\(\large{m^3}\)
\(\large{ \theta }\)  (Greek symbol theta) = volumetric water content	\(\large{ft^3}\)	\(\large{m^3}\)