The Save Interval corresponds to the interval in which simulation results are saved (intern simualtion not processing time interval). The start time of the simulation is normally set to 0, unless you want to continue a simulation ( Continue Calculation). GUI: under additional settings - calculation optionsįield E: Simulation time and titme interval for storagingĪll times given in seconds in the toolbox and as well as the XML file. XML: GeneralSettings - Ma圎xchangeQuantityPromille For this purpose, it is advisable to calculate with a lower raster resolution of input data. If you want to reduce the simulation time significantly i.e. Larger exchange quantities (up to a maximum of 100 ‰) only make sense, The smallest possible input value is 1 ‰. Tests show that values between 1‰ and 5‰ give the best results. These instabilities do not lead to a termination of the simulation run, but in extreme cases they can lead to an interruption of the simulation run due to too high water levels in singleĬells falsifying the results. If the values specified here are relatively large, a „ripple“ can occur in the model depending on the environmental conditions. The value indirectly influences the simulation speed, since the model reduces the duration of the iteration interval to fulfill this condition. The Maximum exchange rate specifies the maximum amount of the current cell content that can be passed on to the neighboring cells in one iteration step. GUI: under additional settings - output optionsġ = Inundation depth at water level position in absolute height (m a.s.l.)Ģ = Inundation depth at water level in absolute height (m a.s.l.) + flow velocity and flow directionģ = Inundation depth in flooding depths in relative height (m)Ĥ = Inundation depth in flooding depths in relative height (m) + flow velocity + flow direction If the calculation option Pointinput is activated, the file PumpVolume.pum is stored here as well- see Read out pump volume. The FloodArea log file is also written to this path. The output grids get an „o“, „v“ or a „d“ at the beginning of the file name. Simulation results will be stored in the newly created subfolders within the output folder named „output“ (flood depth), „velocity“ (flow velocity) and „direction“ (flow direction). The fng.xml is stored in the folder for the temporary data (see Starting FloodArea via XML ). Here the paths for the temporary data and the simulation results are set. GUI: Basic Data, the map unit ( Map Units) is read automatically. XML: Paths - DTM_ras, General Settings - ElevationUnits and RasterUnits. This information have to be specified for each simulation. Specification of the path to Digital Elevation Model (DEM) for the area of interest, value units and the cell size. The following explanation of the parameters also refers to the structure of the file fng.xml (see Starting FloodArea via the XML ) and the GUI. Cancellation is then only possible via the Task Manager (Keyboard shortcut ++). If FloodArea is started by Toolbox and the ArcMap-project is crashed or the user is closing the FloodArea-dialog manually,įloodArea continues to run.