Interpolated Volume

Video using the Interpolated Volume Parameter

General Description

Generic interpolation parameter that returns a value based on a Reservoir or Storage nodes current (time step) volume. The

parameter uses an array (table) of Reservoir Volumes and corresponding values. In this case the associated values are the corresponding Reservoir Area for a given Volume.

Interpolation is used to calculate values betwen points given in the interpolation array. API Reference

Attributes

Name	Description	Required
type	interpolatedvolume	Yes
node	Storage node to provide input volume values to interpolation calculation	Yes
volumes	x coordinates of the data points for interpolation	Yes
values	y coordinates of the data points for interpolation	Yes
interp_kwargs	Dictionary of keyword arguments to pass to scipy.interpolate.interp1d class and used for interpolation	Optional

Example

The following Json shows an example Area vs Volume rating cure for a reservoir. This could be used to define the Area attribute of a Storage or Reservoir node.

{
  "type": "InterpolatedVolumeParameter",
  "node": "Reservoir or Storage node name",
  "volumes": [
    0,
    7,
    10,
    15,
    25
  ],
  "values": [
    1,
    2,
    4,
    6,
    14
  ],

  "interp_kwargs": {
    "kind": "linear"
  },
  "comment": "volumes: Mm3, values:  Km2"
}

The Json represents the table below:

Volume (Mm3)	Area (Km2)
0	1
7	2
10	4
15	6
25	14

When plotted it looks like this:

Below is an example Area rating table

Volume (Mm3)	Area (Km2)
0	1
7	2
10	4
15	6
25	14

When plotted it looks like this