Pumping

To activate pumping, the user needs to provide pumping data as inputs to the model. It is recommended to provide pumping data in \(\mathrm{m^3.s^{-1}}\) but other units are possible as long as the user provides an adapted pumping coefficient.

A Nash model with two linear reservoirs is used to introduce a time delay in the pumping time series. These two reservoirs are characterized by their own half-life time constant.

Physical parameters

River pumping coefficient

[watershed.1]
pumping.river.coefficient = { value = 1.0, opti = false }

River pumping halflife time rise

[watershed.1]
pumping.river.halflife_rise = { value = 0.5, lower = 0.05, upper = 10.0, opti = false, sameas = 0 }

River pumping halflife time fall

[watershed.1]
pumping.river.halflife_fall = { value = 2.0, lower = 0.05, upper = 15.0, opti = false, sameas = 0 }

Groundwater pumping coefficient

[watershed.1]
pumping.groundwater.coefficient = { value = 1.0, opti = false }

Groundwater pumping halflife_rise

[watershed.1]
pumping.groundwater.halflife_rise = { value = 0.5, lower = 0.05, upper = 10.0, opti = false, sameas = 0 }

Groundwater pumping halflife_fall

[watershed.1]
pumping.groundwater.halflife_fall = { value = 2.0, lower = 0.05, upper = 15.0, opti = false, sameas = 0 }