Edelman#

class Edelman(up=True, gain_scale_factor=1.0, cutoff=0.999, **kwargs)[source]#

The function of Edelman, describing the propagation of an instantaneous water level change into an adjacent half-infinite aquifer.

Parameters:
  • up (bool or None, optional) – indicates whether a positive stress will cause the head to go up (True, default) or down (False), if None the head can go both ways.

  • gain_scale_factor (float, optional) – the scale factor is used to set the initial value and the bounds of the gain parameter, computed as 1 / gain_scale_factor.

  • cutoff (float, optional) – proportion after which the step function is cut off.

Notes

The Edelman function is explained in Edelman (1947).

The impulse response function for this class can be viewed on the Documentation website or using latexify by running the following code in a Jupyter notebook environment:

ps.Edelman.impulse

Attributes#

impulse

Methods#

__init__

block

Method to return the block function.

gain

get_init_parameters

Get initial parameters and bounds.

get_t

Internal method to determine the times at which to evaluate the step response, from t=0.

get_tmax

Method to get the response time for a certain cutoff.

step

Method to return the step function.

to_dict

Method to export the response function to a dictionary.