| | Parameter | Equation | Definition | Units1 | Value2 |
| | aaet | 1 | Annual actual evapotranspiration | mm·year−1 | 200 | | appt | 1, 16 | Annual precipitation | mm·year−1 | 300 | | arfr | 15, 22 | Area of one farm | ha | 2.84 | | cdap | 7, 8, 19 | Calibration parameter to represent nonlinear variations in salinity | dmnl | 3 | | cfpm | 2, 4, 9 | Hydraulic conductivity | m·day−1 | 10 | | cfrf | 1 | Return flow coefficient | dmnl | 0.2 | | cfro | 1, 16 | Runoff coefficient | dmnl | 0.2 | | cwot | 20 | Costs of water other than energy | €·m−3 | 1.4 | | dpwl | 2, 4 | Depth of pumping wells below sea level | m | 100 | | dtcp | 2, 4, 9 | Density contrast parameter | dmnl | 0.025 | | dtfw | 2, 4, 9 | Freshwater density | kg·m−3 | 1.000 | | dtsw | 2, 4, 9 | Saltwater density | kg·m−3 | 1.025 | | efir | 21, 24, 26 | Irrigation system efficiency | dmnl | 0.8 | | egcm | 20 | Energy required to pump one cubic meter one meter | kwh·m−4 | 0.017 | | expf | 22 | Initial expected profit per irrigated farm | €·year−1 | 23,000 | | hght | 20 | Average height of land surface above sea level | m | 100 | | idqt | 23 | Irrigation quota | m3·ha−1·year−1 | 20,000 | | lgth | 1, 2, 4, 9, 11, 14, 19, 26 | Coastal aquifer length | km | 10 | | lttf | 1 | Lateral transference from other aquifers | hm3·year−1 | 7.9 | | oaag | 16 | If 1, then open-air agriculture else under plastic agriculture | dmnl | 0 | | ocfm | 13 | Average opportunity cost for a farmer | €·yr−1 | 23,000 | | ocfv | 13 | Coefficient of variation of the opportunity cost for a farmer | dmnl | 0.29 | | octh | 21 | Other costs per hectare | €·ha−1·year−1 | 40,053 | | prcp | 21, 24 | Crop price | €·kg−1 | 0.76 | | preg | 20 | Price of energy | €·kwh−1 | 0.05 | | pxys | 23 | If 1, then farmers seek economic optimum else they seek agronomic optimum | dmnl | 1 | | pycm | 17, 24 | Potential marginal yield per cubic meter of water | kg·m−3 | 30 | | sfmz | 19 | Average salinity factor across a line segment connecting the FB and AB | kg·m−3 | imp | | slcl | 8, 18, 19 | Crop-limiting salinity | kg·m−3 | 2 | | slfp | 18, 19 | Crop-specific calibration parameter | kg·m−3 | 0.5 | | slfw | 7, 8, 19 | Freshwater salinity | kg·m−3 | 0.15 | | slmz | 19 | Actual average salinity across a line segment connecting FB and AB, CDAB ≤ x ≤ CDFB | kg·m−3 | imp | | slsw | 7, 8 | Saltwater salinity | kg·m−3 | 35 | | subh | 21 | Subsidies per hectare | €·ha−1·year−1 | 0 | | tfex | 15, 22, 25 | Time for farmers to adjust expectations | year | 3 | | tmbf | 6 | Time for current SB and FB to achieve equilibrium, freshening phase | year | 10 | | tmbi | 6 | Time for current SB and FB to achieve equilibrium, intrusion phase | year | 5 | | tmhe | 10 | Time for the FGS to achieve equilibrium | year | 5 | | vtmz | 4 | Vertical thickness of the MZ | m | 20 | | wdth | 1, 11, 26 | Coastal aquifer width | km | 4 | | wrao | 17, 23, 24, 25 | Water requirement for agronomic optimum yield | m3·ha−1·year−1 | 7500 | | subscript 0 | | Time zero, initial state of the system | year | unt | | subscript s | | Time step | year | 0.0078125 | | subscript t | | State of the system at a given time | year | unt |
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