MIKE+ 2D Overland | Time Series types supported for a rain on grid simulation

Fig. 1 - Boundaries Conditions | 2D Precipitation and Evaporation

Description of options
Below you have a step-by-step description of your 4 options: constant, uniformly time distributed, spatially distributed and spatially and time varying.

Option 1 - Constant rain intensity
The first available option to load is a constant rain intensity which is equally applied throughout the 2D domain – see Fig. 2

Fig. 2 - Option 1 - Constant rain intensity

Option 2 - Rain varying in time 
The second option is to set a rain varying in time, regular time series in the format of *.dfs0 – see Fig. 3

Fig. 3 - Option 2 - Rain varying in time

Option 3 - Varying in domain and time
The third option is to set the rain as varying in domain and time, this would represent the same spatially distribution or a RADAR reported time series, nonetheless since the rain is applied directly on the grid there is no need to apply weights to different catchments.

Fig. 4 - Option 3 - Varying in domain and time

Option 4 - The option None
The option none simply disables the boundary condition from being applied to the surface.

Conclusion 
The input for rainfall time series can be a constant defined value, a dfs0 file or a dfs2 file.
Moreover, the rainfall time series must:

1. have an Item type set to Rainfall rate
2. only include 1 item in the file
3. And finally, for a spatially varying rain specified with a dfs2 file the file must have the same number of cells and cell size as the DEM. 

FURTHER INFORMATION & USEFUL LINKS

Manuals and User Guides
MIKE+. 2D Overland User Guide.

Training options
MIKE+ CS - Getting started with urban drainage modelling 
MIKE+ 2D Overland Flow - Getting started with urban flood modelling