The Sensor Observation Service (SOS) is a web-based API that allows access to the EFAS post-processes forecasts via web-based query. This allows users to download real-time data from stations on the EFAS River Network.
EFAS SOS can be accessed by EFAS Partners using the credentials available on the https://www.efas.eu/en/efas-web-services page.
Currently, SOS is not available for GloFAS.
EFAS SOS Example Requests
Get Capabilities Request: https://efas-sos.efas.eu/sos/kvp?service=SOS&request=GetCapabilities
Get all featureOfInterest/stations :
https://efas-sos.efas.eu/sos/?service=SOS&version=2.0.0&request=GetFeatureOfInterest
Get a specific station (a feature of interest):
https://efas-sos.efas.eu/sos/?service=SOS&version=2.0.0&request=GetFeatureOfInterest&featureOfInterest=ID_1
Get observations for a specific station (ID_1), model/ensemble member(eud_lisflood) and execution time (2020-08-10T12:00:00Z):
https://efas-sos.efas.eu/sos/?service=SOS&version=2.0.0&request=GetObservation&featureOfInterest=ID_1&procedure=eud_lisflood&temporalFilter=om:resultTime,2020-08-10T00:00:00Z
Get observations for a specific station (ID_1), model/ensemble member (eue_lisflood_3) and execution time (2020-08-10T12:00:00Z):
https://efas-sos.efas.eu/sos/?service=SOS&version=2.0.0&request=GetObservation&featureOfInterest=ID_1&procedure=eue_lisflood_3&temporalFilter=om:resultTime,2020-08-10T00:00:00Z
Get observations for a specific station (ID_1), model/ensemble (eue) and execution time (2020-08-10T12:00:00Z):
https://efas-sos.efas.eu/sos/?service=SOS&version=2.0.0&request=GetObservation&featureOfInterest=ID_1&procedure=eue&temporalFilter=om:resultTime,2020-08-10T00:00:00Z
Helgoland Client
The Helgoland client is a thin client developed by 52North and customised for EFAS allowing the display of Observational and Forecast data on an OpenStreetMap background.
The current URL for accessing the client is https://efas-sos.efas.eu/. The credentials can be retrieved at https://www.efas.eu/en/efas-web-services ONCE you are logged in AND your account is in an organisation that is a partner of EFAS.
The image below is the main display of the Helgoland client. Stations that provide Real-time data are available to select.
On the right-hand side, there are 2 different 'Phenomena' available to select; averageDischargeOverPrevious6Hours and averageDischargeOverPrevious24Hours.
Users can select the parent sensor (dwd, eud, eue, cos, mcp_obs and mcp_sim).
In the image below you can see selecting all COS child models for one station for one run of the EFAS Forecast.
Users can then select the dates available for the data in the database.
Users can then select the Child Sensor (mcp_simq1 - mcp_simq99)
In the image below, multiple result times have been selected from September 1st to 3rd of the DWD Forecast and one result of the EUD forecast for comparison on one station.
