Delft-FEWS and the Deltares Open Archive can easily be linked. Delft-FEWS has a lot of possibilities to export data to the Deltares Open Archive which makes it easy to store data in the Deltares Open Archive from FEWS. At the same time Delft-FEWS can access the data stored in the Deltares Open Archive in several ways. Data from the Deltares Open Archive can be used in Delft-FEWS from viewing purposes but it is also possible to download data from the archive and use the data in, for example, transformations and/or the general adapter. In the sections below we will first explain how data from the Delft-FEWS can be exported to the Deltares Open Archive. We will also explain how to connect from a Stand Alone or an Operator Client to the Deltares Open Archive and use the data for viewing or calculation purposes.
Exporting data from Delft-FEWS to the Deltares Open Archive
The configuration of the data export to the Deltares Open Archive is quite similar to the configuration of a regular data export in Delft FEWS. The data export is executed by a regular FEWS workflow in a FEWS FSS. The data directly written by the FSS to the data directory of the archive. The harvester of the archive will detect during its next run that new data was added to archive and update the catalogue accordingly. See also Export to Deltares Open Archive
Delft-FEWS SystemConfigFile Archives.xml
To connect to the Deltares Open Archive from a Stand Alone or an Operator Client you need specify where the Deltares Open Archive is located. This can be done by using the Archives.xml file in the SystemConfigFiles folder. See also: Archives
Archive connection status in Delft-FEWS status bar
You can easily check if you are connected to the archive by using the status bar in the FEWS explorer. After the configuration on the Archives.xml (which is only a few lines of configuration) a lot functionality becomes available! Below a summary of the functionality which is available after configuring the Archives.xml.
Connected
If you are connected to the archive, the name and version of the archive will be displayed.
Not connected
If the connection fails because of a configuration error (or when the archive is not available) you will see the following:
Forecast Management Display
The forecast management display will have an additional tab "Archived forecasts" available. This panel will show in the upper part of the panel which forecasts are available in the archive. The forecasts can be downloaded by using the download button.
System monitor
System Monitor display has a tab “Archive Server Status”. The upper part of this tab shows the version of the archive server, status of the archive server components, number of records in the catalog and disk space info. The lower panel shows the status of the available archive server tasks. If the task is scheduled, then the column “Repeat Time” displays the schedule interval. Column “status” shows whether the task is running or pending. In addition to internal harvester and clear internal catalog also other configured task such as historical events exporter or file sweeper might be shown.
The tab “Archive Server Status” is able to show the status information only when the Archive Server version 2017.02 patch 73970 or higher is running. If there is an older version running, the status cannot be obtained and the tab will be filled as shown below
ArchiveDisplay
The archive display can be used to search for data in the archive and to download and import it. At the moment it is only possible to import data into a stand alone. In addition it is possible to create, update and delete events. The create events can be used in the same display to download and import data. See also: Archive display
Historical events
It is possible to define historical events by using the archive display. Historical events are a special type of event. If data in the archive is marked as being part of a historical event, the archive will export this data to the folder /root archive/historical event. FEWS will periodically run an import for historical events to import historical events from this folder. After the import the historical events are available in the time series dialog.
If a historical event is available for a time series then the historical event button
will be shown (see image above).
After clicking on this button the display above appears. A list of historical events which is available for this displayed time series will shown.
After selecting one or more events the time series for these events will be displayed in the time series dialog. By using the arrow buttons 
and 
the time series can be shifted to the left or right. The historical event will be shifted by a single time step to the left or right when using the buttons. When multiple time series are shown the smallest time step will be used. If you display is zoomed out then another rule will be used. As long as displayed period divided by 100 is smaller than the time step of the displayed time series then the time step of the time series will be used. But as soon as this is no longer the case then the displayed period divided by 100 will be used when shifting the historical events.
