Rainfall Overlay tutorial

Getting Started

1. Open the Tygron Engine, logon with user name and password and open the project Inun Test NL
2. Download and unpack the content of this zip-file: [1]

Editing terrain

First we add water to the terrain model of our project:

1. Go to Terrain in the ribbon and select Import GeoJSON file
2. Press Select File and import the file openwater.geojson from the tutorial
3. Select Water from the Import as Terrain Type: selection menu

Press Send. You have added the canals of our water system!

Adding a Rainfall Overlay

1. Go to Overlays, in the GeoData ribbon and select Add Rainfall. The rainfall indicator appears on the left-side-panel
2. Open the Rain Overlay Wizzard by clicking on the Configuration Wizard button in the right-side-panel

The Rainfall Overlay Wizard will appear:

Step 1: defining the weather

Press Next to proceed to the Weather panel, here the user can define rainfall and evaporation input. Change all numbers and the according to this picture: File:RFO Tutorial Weather.png

By this setting you have defined a rainfall event:

1. Of two peaks in 120 minutes
2. With a total rainfall amount of 100mm
3. With a dry period after rainfall of 120 minutes, so a total simulation time of 4 hours

Reference evapotranspiration will be assumed on 1.5mm/day

Step 2: defining the water system

Step 2.1: adding water level areas

Press Select File, browse to the file: waterlevelareas.geojson. Set the following:

1. Set name based on attribute, and select the NAME attribute from the geojson file.
2. Import the OUTLET attribute and assign it to the OUTLET key. Here a pump capacity (m3/s) is specified. In water areas with the pump capacity defined, water will be extracted with the pump capacity. Extracted water via the pump is assumed to be discharging outside the project domain.
3. Import the WATER_LEVEL attribute and assign it to the WATER_LEVEL key. Here the initial water level in the water area is defined in m + reference (being NAP in the Netherlands)