52°North SOS¶

Web Service¶

The 52°North Sensor Observation Service (SOS) supports the interoperable provision of live and archived sensor observation data. A sensor could be a water level meter in a stream, a weather station, or an air quality monitoring station.

Features¶

Browser Client: The SOS is delivered with a browser based application. This provides means for administration and configuration of the service instance, as well as sending test requests for SOS operations; appropriate sample requests are included.
Helgoland: The SOS contains the Helgoland application for the exploration, analysis and visualization of sensor web data in various fields of use, e.g. hydrology, meteorology, environmental monitoring, traffic management.
Specifications: The 52°North SOS implements the current specification version 2.0.0 and the previous version 1.0.0 (here no transactional operations). Implemented operations for each standard version are listed below.
INSPIRE Download Service Extension: Starting with Version 4.2.0, an extension is available that allows the SOS to be used as an INSPIRE download service. Background information is provided in a blog post and in the wiki .
Air Quality Data e-Reporting Extension: Starting with version 4.3.0, an extension is available that provides for the Air Quality Data Flows E1a, E1b and E2a compliant data (the instance on OSGeo-Live is not configured accordingly). The installation and configuration is documented in the 52°North Wiki.
RESTful API for Timeseries: Starting with Version 4.1.1., a bundle version is available, that directly provides the RESTful API, is available. Hence, timeseries can be requested in a RESTful way in JSON encoded requests. More details incl. documentation can be found in the SOS webapp.
Read more: Details of the implemented functionalities can be found in the 52°North Wiki.

SOS Operations¶

Queries:

GetCapabilities: for requesting a self-description of the service.
DescribeSensor: for requesting information about the sensor.
GetFeatureOfInterest / GetFeatureOfInterestTime (from 1.0): for requesting features (e.g. sensor/measurement locations).
GetObservationById / GetObservation: for requesting observations.
GetResult (from specification version 2.0): for requesting sensor data.
GetResultTemplate (from specification version 2.0): for requesting a template of the result structure that will be returned by a GetResult request.
GetDataAvailability (from SOS 2.0 Hydrology Profile - OGC Best Practice): for requesting the data availability for certain configurations.

Transactions:

InsertSensor (from specification version 2.0): for inserting metadata of new sensors.
InsertObservation (from specification version 2.0): for inserting new observations.
UpdateSensorDescription (from specification version 2.0): for updating the description of a sensor.
DeleteSensor (from specification version 2.0): for deleting a sensor/procedure and all related offerings and observations.
DeleteObservation (extension for SOS specification 2.0): for deleting an observation.
InsertResultTemplate (from specification version 2.0): for inserting a result template.
InsertResult (from specification version 2.0): for inserting results.
InsertFeatureOfInterest for feature insertion
DeleteResultTemplate for the deletion of resultTemplates by identifier or offering/observedProperty pairs

Within these operations, the following filter operators are possible where applicable: