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 Archivecan 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 chapters 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.
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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. More detailed information about the configuration of data exports to archive can be found here 22-2 See also Export to Deltares Open Archive
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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. More detailed information can be found here: 10 See also: Archives
Archive connection status in Delft-FEWS status bar
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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. Details about how to configure the archive display can be found here:21 See also: Archive display
Historical events
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If a historical event is available for a time series then the historical event button
will be shown (see image above).
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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 1 one or more events the time series for these events will be displayed in the time series dialog. By using the arrow buttons 
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.
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