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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)

Service implementationPredefined

dataset download service

Direct access download service

WFS Х ХAtom Х  

Availability of solutions – server implementationsProduct Responsible institution Description

Database SOS version License

istSOS

Earth Science Institute (IST); University of Applied Sciences

of the South Switzerland (SUPSI)

Implementation for Canton Ticino

hydro-meteorological

monitoring network

(Switzerland). Support of SOS 2.0

is expected in 2013.

Postgresql/PostGIS

1.0

GNU General Public License 2.0

52°North SOS

52°North GmbHMost widely used

and complex implementation of

SOS

Postgresql/PostGIS

1.0 and 2.0 GNU General Public License 2.0

PySOSOpen source community

Simple Python implementation of

SOS

Postgresql/PostGIS 0.3  Artistic License

MapServer SOSOpen source community

Versions from 5.6 above support SOS Core

Any (already existing) 1.0 MIT-style license

Deegree SOS

LatLon GmbHService is

unmaintainedAny (JDBC)

1.0 GNU General Public License 2.0

GeoCENS SOS

GeoCENS project

Java and CouchDB SOS

implementation within the

GeoCENS project.

CouchDB 1.0  

Availability of solutions – clients

Product Responsible institution Description

ArcGIS Server SOS Extension 52°North GmbH

Server Object Extension for ArcGIS server allowing retrieval of observations and SensorML through queries

ArcGIS Desktop SOS Extension

52°North GmbH

Extension for ArcGIS Desktop allowing retrieval of observations and SensorML through queries

OX RESTful SOS

52°North GmbH

 

sos4R52°North GmbH

Extension of the open source R statistical package to use SOS for data retrieval

uDig SOS Plugin52°North GmbH

Plugin for the widely used uDig desktop GIS.

SWE Client52°North GmbH

Thin web based client which provides access to O & M and SensorML with charting, map visualization and export functionalities

Rich OX Client 52°North GmbH Java (Swing) fronted of the 52°North OX-Framework

OpenLayersOpen source community

Implementation of OpenLayers acting as client for SOS sensor offerings is available

OOSTethys -OpenIOOS 

 

ProteusIntelligent

Automation Inc.

Basic desktop client for discovery and retrieval of SOS sensor offerings

Environmental Data Connector SOS ASA

 

GeoLand2 WebMapViewer

GeoLand FP7 project partners

Enables service providers to deliver their content through a cartographic map interface

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)

Thank you!