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Interested in accessing layers within a webviewer? An example script is provided for the NHI data portal, though other webviewers may order/name XML tags differently.
COASTAR
Enabling information via storymaps is a popular way of dissemination. This can easily be done by FAIR data. It is not necessary to establish this via uploading all your data to ArcGIS Online (which is also very slow in handling vector data). Via the geoserver on the Deltares data portal data has been converted into AIR data (Accessible, Interoperable and Reusable). You can view the example of COASTAR project here (parts of the storymap are under cunstruction on 01-12-2021).