Estimation of Evapotranspiration and Water Budget Components Using Concurrent Soil Moisture and Water Table Monitoring

Table 1

Notation used in the 1D transect model along with description and units of each symbol.

Notation	Description	Units	Notation	Description	Units
P	Precipitation	[LT^−1]	𝜏𝑖	Effective flow thickness in the 𝑖th grid cell	[L]
𝑑WT	Depth to the water table	[L]	𝑃𝐸	Effective rainfall	[L^3L^−2]*
ET	Evapotranspiration	[LT^−1]	𝐼𝐶	Interception capture	[L^3L^−2]*
I	Infiltration	[LT^−1]	URI	Upstream runoff infiltration	[L^3L^−2]*
𝐼𝑆	Daily soil infiltration	[L^3L^−2]*	DS ET	Evapotranspiration from depression storage	[L^3L^−2]*
ETS	Evapotranspiration from soil moisture	[LT^−1]	TET	Total evapotranspiration	[L^3L^−2]*
q	Specific lateral discharge	[L^3L^−1T^−1]	TRE	Total rainfall excess	[L^3L^−2]*
S	Water storage in the soil column per unit width	[L^3L^−1]	NR	Net runoff	[L^3L^−2]*
θ	Water content	[L^3L^−3]	HR	Hortonian runoff	[L^3L^−2]*
Δ𝑋𝑖	lateral dimension of 𝑖th grid cell	[L]	SER	Saturation excess runoff	[L^3L^−2]*
K	Hydraulic conductivity	[LT^−1]	𝐼𝑆	Soil infiltration	[LT^−1]

* Accumulated on daily time step.