SOS in the context of INSPIRE Alexander Kotsev
Context • The number of devices connected to the Internet exceeded that of people in 2008 and • Expected to reach 50 billion in 2020 (Swan, 2012) • Many of those are sensors which may be organized into sensing networks • Environmental wireless sensor networks in the IoT have a new kind of scope which can be applied to a wide range of uses (Martinez, 2004) • This is creating a revolution in all environmental sciences similar to the one generated by the use of satellite remote sensing in the 1970s (Hart et. al. 2006).
INSPIRE and observation data from sensors • INSPIRE as Framework Directive is focused on the ’spatial’ • However • Guidelines for the use of Observations & Measurements and Sensor Web Enablement-related standards in INSPIRE Annex II and III data specification development • Created in response to the necessity to provide observation data in Annex II and Annex III • http://inspire.ec.europa.eu/documents/Data_Specifications/D2.9_O&M_Guidelines_v2.0rc3.pdf • SOS is seen as one of the possible candidates for the extension of TG for INSPIRE Download services (v. 3.0)
Study on SOS in the context of INSPIRE • Comparison with other solutions • Mapping between INSPIRE NS regulation and SOS specifications (Bröring et. al. 2012) • Availability of client/server solutions
Why not Atom and WFS? • Data view • Geospatial versus Observation centric perspective on data • Atom – not suited for the purpose of direct access • WFS is flexible enough to accommodate observation data • However: • WFS focus is on features • Flexibility may lead to very different implementations • SOS focuses on observations (e.g. 1 TB of data for one feature)
TG update and Open Source INSPIRE/SOS Implementation (Are3na) • Bundle of: • Open Source Software • Proposal for an update of the Technical Guidance document for INSPIRE Download servcies http://inspireaq.jrc.ec.europa.eu/52n-inspire-sos
JRC Air Quality station http://inspireaq.jrc.ec.europa.eu/52n-inspire-sos/sos/kvp?service=SOS&request=GetCapabilities
Possible ways ahead • Sensors with onboard service capabilities • RaspberryPI • Arduino shield (JRC Air and Climate unit) • Study of other INSPIRE download service ‘candidates’ • Web Coverage Service (WCS) • Table Joining Service (TJS)