Time series

This property page contains the specifications for time series output files to be generated during the simulation. These output files are created in addition to the regular and the additional .res1d output files. Time series output can be saved in .dfs0 or ASCII files. The purpose of this facility is to offer the possibil­ity of getting time series files without manually extracting them from the .res1d file after the simulation has been completed. This is often useful for automatic or manual calibration or when running production simulations.

To request a time series output file to be generated during the simulation, a new item should be added to the overview table at the bottom of the page. Time series outputs are added or deleted from the table by use of Append '+' or Delete '-' buttons above the overview table.

For each row in this table, one time series output file will be generated. The upper part of the dialogue displays the properties of the active entry in the table, which are described below.

Time series

ID

String identification of the time series. ID will be used in the output results and hence makes it easier to identify each created time series.

Format

The format column gives three choices for the file format:

-          –         dfs0. This will generate a .dfs0 file in the standard DHI file format for time series. Files can be loaded into for instance the time series edi­tor, Plot Composer, MIKE View or used as simulated data for the auto calibration tool.

-          –         Ascii – column based. This will generate an ASCII file with a column based format. There will be one time column and one column for grid point item selected for output. The number of lines will equal the number of saved time steps.

-          –         Ascii – table based. This will generate an ASCII file with a table based format. There will be one table for each time step saved. Each table will have rows corresponding to the number of selected grid points, and columns corresponding to the number of selected items.

File name

Here the name of the output file should be specified together with the path where the file should be stored.

Text file settings

These check boxes only apply for the two ASCII file formats:

-          –         Minimum: A separate table at the bottom of the file will show the minimum value of the output items.

-          –         Maximum: A separate table at the bottom of the file will show the maximum value of the output items.

-          –         Time of minimum: A separate table at the bottom of the file will show the time of minimum value of the output items.

-          –         Time of maximum: A separate table at the bottom of the file will show the time of maximum value of the output items.

The following format specifications can also be expressed for the ascii output files:

-          –         Delimiter: Between each column a special character like semicolon, comma etc. can be requested. This makes import to for instance Excel easier.

-          –         Column width: The desired minimum width of each column can be specified.

Time period

In this section the desired period of the output time series can be specified.

Period

Here you can choose from the drop down menu whether the output time series will cover the full Simulation period or a Selected period.

Start

Start date of the output time series, when the type of period is ‘Selected period’.

End

End date of the output time series, when the type of period is ‘Selected period’.

Items

Time series output is produced for the selected items. These can be added or removed from the output file by using the Append ‘+’ and Delete ‘-’ buttons above the table. It is also possible to add to the output file all the available items by clicking on Add all items.

For each row in the table, the properties below must be specified.

Item

The items can be selected from the choices available in the drop down menu. Some of the items are dynamic and some are static. Dynamic items are items between "Water level" and "Bed shear stress". In the dfs0 files only dynamic items will be saved. In ASCII files both dynamic and static items will be saved.

The available items are:

-          –         Water level

-          –         Discharge

-          –         Velocity

-          –         Cross section area

-          –         Flow width

-          –         Radius

-          –         Resistance number

-          –         Conveyance

-          –         Froude number

-          –         Volume

-          –         Flooded area

-          –         Mass error

-          –         Lateral inflows

-          –         Water level slope

-          –         Energy level slope

-          –         Energy level

-          –         Bed shear stress

-          –         Lowest river bed level

-          –         Left levee bank level

-          –         Right levee bank level

Name

A user defined name for the item can be specified. If not specified, the default name will apply.

No decimals

The specification of the number of decimals will only apply for output in ASCII files.

Grid points

The calculation points which will be saved in the time series output are speci­fied here. Using the ‘Selection’ drop-down list to the right, the user may choose to either save all points, only the selected ones from the table or all-but-selected ones.

The identification of grid points in the table is done through specifying a num­ber of reaches, which are themselves defined by river name, upstream chain­age and downstream chainage. Single grid points can be defined by setting the upstream chainage equal to the downstream chainage.

Note: Outputs are only saved at h-points locations.The discharge is however saved at h-points when saving to an ASCII file, or at Q-points when saving to a .dfs0 file.