Solution Supporting Building of Global Earth                 Observation Systems of Systems Building (GEOSS)              ...
Introduction     • The Global Earth Observation System of Systems        (GEOSS) has been built by the Group on Earth     ...
Introduction     • To achieve its objectives, EnviroGRIDS is building modern       Spatial Data Infrastructure (SDI) that ...
Objectives     • The main objectives of the implementation of GeoPortal       cover the implementation of following servic...
Objectives     • Invoke spatial data services: enabling data services to be       invoked.     • This implementation is do...
Methodology     • EG portal can be seen from two sides:             – As a client accessing external services.            ...
Technology descriptionSession 9f, 11 May 2012   IST-Africa 2012                     Copyright 2012 CCSS
Technology descriptionSession 9f, 11 May 2012   IST-Africa 2012                     Copyright 2012 CCSS
Technology descriptionSession 9f, 11 May 2012   IST-Africa 2012                     Copyright 2012 CCSS
Developments     • The enviroGrids GeoPortal is divided into four basic       buildings blocks, which are currently implem...
Results     • EG portal ensures that any user can easily discover,       evaluate and use any type of information.     • C...
Results     • EG portal provides:             – Discovery service                • Writing and publishing INSPIRE-complian...
Conclusion and outlook     • EG portal is now part of of GEOSS infrastructure.     • Solution supports both major SDI inia...
Conclusion and outlook     • Basic infrastructure is prepared for             – management of metadata and data           ...
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Ist africa2012 solution supporting building of global earth observation systems_1

  1. 1. Solution Supporting Building of Global Earth Observation Systems of Systems Building (GEOSS) Premysl Vohnout Czech Centre for Science and Society Czech RepublicSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  2. 2. Introduction • The Global Earth Observation System of Systems (GEOSS) has been built by the Group on Earth Observations (GEO). • The GEOSS is focused on user needs and support better utilisation of enviromental data and decision-support tools by users • EnviroGRIDS @ Black Sea Catchment aims at – building capacities in the Black Sea region, – to use new international standards to gather, store, distribute, analyze, visualize and disseminate crucial information on past, present and future states of this region, in order to assess its sustainability and vulnerability.Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  3. 3. Introduction • To achieve its objectives, EnviroGRIDS is building modern Spatial Data Infrastructure (SDI) that will become one component in GEOSS, compatible with the new EU directive on Infrastructure for Spatial Information in the European Union (INSPIRE). • EnviroGRIDS GeoPortal is designed as „virtual database“. – It uses principles of Uniform Resource Management System (URM) and Geoportal4everybody – It integrates different technologies like Geographic Information System (GIS), multimedia, Content Management System, social media.Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  4. 4. Objectives • The main objectives of the implementation of GeoPortal cover the implementation of following services: • Discovery services: supporting discovery of data, evaluation and use of spatial data and services through their metadata properties. • View services: as a minimum, display, navigate, zoom in/out, pan, or overlay spatial data and display legend information and any relevant content of metadata • Download services: enabling copies of complete spatial data sets or parts of such sets to be downloaded • Transformation services: enabling spatial data to be transformed (projection and harmonization)Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  5. 5. Objectives • Invoke spatial data services: enabling data services to be invoked. • This implementation is done using Open Geospatial Consortium (OGC) services – Web Map Service (WMS), – Web Feature Services (WFS), – Web Coverage Services (WCS), – Web Processing Services (WPS), – Catalogue Services for Web (CSW) • All of this services will be made also interoperable with Grid servicesSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  6. 6. Methodology • EG portal can be seen from two sides: – As a client accessing external services. – As a server making data and services available for other components of SDI (INSPIRE and GEOSS based) or for GRID service. • EG portal supports easy registration of different spatial services (here is client). The system offers possibilities to: – Register services temporally for visualisation – Register services to catalogue – Connect temporally other catalogue into discovery client of GeoPortal – Register catalogoue services fo harvesting • EG portal provides tools for users to create services (here is server)Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  7. 7. Technology descriptionSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  8. 8. Technology descriptionSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  9. 9. Technology descriptionSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  10. 10. Developments • The enviroGrids GeoPortal is divided into four basic buildings blocks, which are currently implemented: • Metadata management (editing, discovery, access, harvesting) • Data management (upload, download, import to DB, OGC service publishing) • Data visualization (local data, WMS, WFS, KML and management of WMC) • Content management (publishing of context and connection with social networks)Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  11. 11. Results • EG portal ensures that any user can easily discover, evaluate and use any type of information. • Core component of the system is metadata management system – It allows to manage any types of information. – It allows to search and share data using catalogue service and social networks. • Tools which are mainly used also in other portals are: – MIcKA – HSLayers – Mapserver or GeoserverSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  12. 12. Results • EG portal provides: – Discovery service • Writing and publishing INSPIRE-compliant metadata – View service • Publishing data using INSPIRE-compliant view service (WMS 1.3.0) – Download service • This is most problematic part. But portal provides reliable solution. Problems are performance and interoperability.Session 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  13. 13. Conclusion and outlook • EG portal is now part of of GEOSS infrastructure. • Solution supports both major SDI iniatives INSPIRE as well as GEOSS. • It can be now used as tool for capacity building in region. • Curently it offers: – List of basic services to integrate data in any region. – Harvesting of available data and services – Integrated access point for data in region • This experiences can be transferred to other regions including AfricaSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
  14. 14. Conclusion and outlook • Basic infrastructure is prepared for – management of metadata and data – publishing and accessing services • In final phases of development was done heavy tests of services related to GEOSS and EnviroGRIDS – We discovered a lot of interoperability problems. This is mainly problem of version of services. – It is necessary to cooperate with services providers to fix problems. – Biggest problems are with new WFS versions, WCS and CSW services. • There is generally needed more work on newer standards to provide advanced clients for WPS and SOSSession 9f, 11 May 2012 IST-Africa 2012 Copyright 2012 CCSS
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