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Fully upgraded to ISO 19139

Status of upgrading CDI service (user interface, harvesting via GeoNetwork, CDI interoperability options following SeaDataNet D8.7) By Dick M.A. Schaap – Technical Coordinator Barcelona – Spain, 19 – 20 March 2014, Combined EMODNet Chemistry 2 TWG and SeaDataNet TTG.

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Fully upgraded to ISO 19139

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  1. Status of upgrading CDI service (user interface, harvesting via GeoNetwork, CDI interoperability options following SeaDataNet D8.7) By Dick M.A. Schaap – Technical Coordinator Barcelona – Spain, 19 – 20 March 2014, Combined EMODNet Chemistry 2 TWG and SeaDataNet TTG

  2. Fully upgraded to ISO 19139 • ISO19115 content standard and XML Schema have been migrated to INSPIRE compliant ISO19139 with info extensions • EDMED refs • CSR refs • Publication refs • Quality Info • Vocabularies NVS 2.0 • From C16 to C19 for Sea regions • Central CDI import and retrieval system • User interface also upgraded to support new elements and extra search options • Upgrading done for all CDI portals

  3. CDI User Interface upgraded Extra P02 Extra Sea Region Extra Multiple Extra Duration

  4. CDI Data Discovery and Access Service – details EDMED Sea regions

  5. CDI Data Discovery and Access Service – details CSR (EDMO) (EDMERP)

  6. CDI Data Discovery and Access Service – details Publications Quality Info

  7. Outstanding actions: User Interface • SeaDataNet formats: SDN ODV ASCII will be combined with SDN NetCDF (CF) for point data • Awaits: • NEMO upgrade for ODV to NetCDF • Download Manager upgrade for NetCDF generation and delivery next to ODV • Implementation at all data centres incl need to convert all ODV files to NetCDF and include both in storage and coupling table • Updating of CDIs to include NetCDF next to ODV format (can be done centrally in communication with data providers) • Add MSFD regions as search criterium (via geotagging of all CDIs during import) and in Summary (to ease EMODnet reporting) • Include dynamic WMS – WFS to existing Store Query (via Bookmark and URL)

  8. Harvesting of CDI XMLs – progress of pilot • IFREMER has implemented CDI and CSR schema’s in GeoNetwork (details by IFREMER presentation) • Via GeoNetwork IFREMER now provides a CSW for CDI and for CSR http://www.ifremer.fr/geonetwork-sdn/srv/eng/csw-cdi?SERVICE=CSW&VERSION=2.0.2&REQUEST=GetCapabilities • The retrieved CDI XML files are good XML documents, but need some editing (delete the first 3 lines and replace these with normal CDI XML header and delete the last tag) to parse it as OK in XML-SPY and for loading into MIKADO and CDI import routines. • Content consistency is 100% good • Plan to use Var06 = Revision Date Data as trigger for regular (once a week) harvesting of new and revised CDI XML files • Var06 is automatically updated by MIKADO when you save a CDI file • Outstanding: check on numbers for the right query

  9. Harvesting of CDI XMLs – planned implementation • Selected data centres will install GeoNetwork with IFREMER add-on’s and CSW and will use that to store output of MIKADO • MARIS will install CSW harvesting configurations to each data centre for regular harvesting of new and revised CDI XML files • Normal procedure is continued: • Validation and check for potential duplicates -> communication MARIS to data provider • Import in CDI import user interface => visual check by data provider • Migration from import to production, if ok by data provider • Data provider also updates coupling table and stored files / database queries • Time scale? Which data centres for start?

  10. CDI interoperability options (D8.7) - progress • OGC – CSW • OGC WMS – WFS • OpenSearch

  11. CDI interoperability options (D8.7) – OGC - CSW • CSW arranged via MARIS – CNR using GI-CAT on CDI aggregates • CDI aggregation by • P08 term • EDMO-data-centre • Measurement-area-type (point / curve / area) => 1.5 Million CDIs give at present 397 aggregated CDI XMLs • CDI aggregation pages are secured by IP-IP to CNR • CNR operates CSW service via GI-CAT http://seadatanet.essi-lab.eu/gi-cat/services/cswiso? • Regarding the CSW interface: the CSW GetRecords operation has a mandatory HTTP/POST binding (HTTP/GET is optional)

  12. CDI interoperability options (D8.7) – OGC - CSW • Test Client at CNR (ESSI lab) : http://seadatanet.essi-lab.eu/gi-cat/gi-portal/

  13. Outstanding actions: CSW • Check on numbers in – out • Trigger by MARIS to CNR for harvesting update for CSW • Considering adding HTTP/GET because easier • Use of the upgraded CSW by RIHMI in Ocean Data Portal (ODP) =========================================== SeaDataNet included in GEOSS portal: • Via GEO-DAB broker: Official GEO Portal: http://www.geoportal.orgTest portal URL: http://eurogeoss-broker.eu/

  14. CDI interoperability options (D8.7) – OGC – WMS - WFS • CDI service has dynamic WMS – WFS for set selections: http://geoservice.maris2.nl/wms/seadatanet/cdi_v2/emodnet/chemistry http://geoservice.maris2.nl/wms/seadatanet/cdi_v2/emodnet/hydrography http://geoservice.maris2.nl/wms/seadatanet/cdi_v2/seadatanet • Getcapabilities http://geoservice.maris2.nl/wms/seadatanet/cdi_v2/emodnet/chemistry?service=WMS&request=GetCapabilities • Example WMS request: http://geoservice.maris2.nl/wms/seadatanet/cdi_v2/seadatanet?styles=&format=image/png&transparent=true&request=getmap&version=1.1.1&srs=EPSG:4326&layers=lines&width=580&height=290&bbox=-180,-90,180,90

  15. CDI interoperability options (D8.7) – OGC – WMS - WFS • Example of WMS Layer of CDI for surveys by WMS in Bathymetry Viewer

  16. CDI interoperability options (D8.7) – OGC – WMS - WFS • Getcapabilites indicates what is available. In CDI case it is both WMS and WFS. Implementing WFS is depending on the client and needs programming • Example of WFS request: http://geoservice.maris2.nl/wfs/seadatanet/cdi_v2/emodnet/chemistry?service=WFS&version=1.0.0&request=getfeature&outputformat=gml3&typename=points&maxfeatures=10&bbox=-0.2793103448275872,57.4448275862069,1.5206896551724127,59.244827586206895 Gives:

  17. CDI interoperability options (D8.7) – OGC – WMS - WFS • Example of WFS CDI layer of physical oceanography data sets from SeaDataNet as WMS – WFS in the SIMORC User Interface (www.simorc.com) . URLs to SeaDataNet

  18. Outstanding actions: WMS - WFS • Include WMS – WFS in the Store Query – Bookmark function in the CDI User Interface • Then every user can make and share its own WMS – WFS layer following its selection

  19. CDI interoperability options (D8.7) – OpenSearch • OpenSearch is supported by Google, Yahoo, and others • The protocol gives metadata about the content together with a set of URL templates which indicate which parameters are accepted and the range of output formats for results • OpenSearch request is simple and consists of HTTP GET with parameters: • Free search • Geospatial (area or point + radius) • Temporal (from to) • Required to split the total metadata in multiple OpenSearch access points (virtual aggregations) • OpenSearch entry points need to be prepared as RDF and registered in a portal. Each RDF file decribes an access point of an aggregated set of CDIs • MARIS has experience via GENESI-DEC project

  20. Outstanding actions: Open Search • Proposed implementation by aggregation on P03 terms (max 59 OpenSearch entry points) – Search by time, place and free (proposed: parameters (p03 and p02) + station name + platform type + instrument type) • Registration of entry points on SDN CDI portal • Development of client to demonstrate the OpenSearch capabilities for querying CDI service

  21. END

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