Time sequence (Water Overlay)

In the Water Overlay, a number of elements can be configured as a time sequence rather than a single value. This means that during the simulation, the value used for calculations changes over time.

Time sequences can be loaded in via two methods: directly as attributes of imported Geo data, or by importing a CSV file via the configuration wizard.

Structure of a time sequence

Time sequences are stored in project data in the form of attribute_arrays. It consists of a sequence of pairs of a time and a value to use for that time. A maximum of 100 values is used, interpreted as 50 individual pairs of a time and a value.

Depending on the type of element you wish to configure using a time sequence, the interpretation of a time sequence can differ.

Definition by end

Rainfall and evaporation use an interpretation by which the times indicate up to when the value is used.

Definition by start

Hydraulic structures use an interpretation by which the times indicate from when onward a value is used.

Interpolated

Breaches use an interpretation by which the used value is interpolated based on the current time in the simulation, the preceding and upcoming defined time in the time sequence, and the associated value.