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OGC® Ocean Science IE Report has been submitted to OGC
This document provides lessons learned and best practices resulted from the Ocean Science Interoperability Experiment (Oceans IE). The Oceans IE was created to investigate the use of OGC Web Feature Services (WFS) and OGC Sensor Observation Services (SOS) for representing and exchanging point data records from fixed in-situ marine platforms.
The Oceans IE Phase I investigated the use of OGC Web Feature Services (WFS) and OGC Sensor Observation Services (SOS) for representing and exchanging point data records from fixed in-situ marine platforms. It concluded that the use of OGC Sensor Observation Services (SOS) was better suited than the use of OGC Web Feature Services (WFS) for this purpose. By publishing an SOS service instead of a WFS service communities will not required to create and maintain schemas, and interoperability at the client side is achieved; however this requires an effort in creating and maintaining controlled vocabularies by marine communities. The Oceans IE developed the following best practices for using an OGC Sensor Observation Service (1.1), which will help improve existing standards and recommendations at OGC:
- Requesting a get latest observation
- Encoding of OGC URNs when versioning is missing
- Publishing of URIs by service providers
- Using Semantic Web technologies to categorize SOS services
- Publishing an SOS as an HTTP-Get service
- Encoding vertical datums (Sea level based systems, geoid based systems and bottom based systems) in marine observations
Also, the OOSTethys team, developed a set of toolkits to help service providers publish SOS services. The toolkits are in Java, Perl and Python and follow the best practices detailed in this document. The toolkits are available at http://www.oostethys.org.
