Presentation is loading. Please wait.

Presentation is loading. Please wait.

World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS) WMO Presented by Timo Pröscholdt WIS.

Similar presentations


Presentation on theme: "World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS) WMO Presented by Timo Pröscholdt WIS."— Presentation transcript:

1 World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS) WMO Presented by Timo Pröscholdt WIS Professional Officer for WIS The WMO Information System (WIS)

2 October 2011WIS Overview2 WMO: Observations, Models, Data and Information

3 October 2011WIS Overview3 Global Telecommunication System (GTS) Exeter Sofia Melbourne Buenos Aires Tokyo Beijing Nairobi Washington Cloud Cloud I Jeddah Prague Toulouse Dakar Algiers Offenbach Brasilia Cairo New Delhi Moscow Cloud II

4 October 2011WIS Overview4 Types of Centres: GISCs, DCPCs, and NCs IRI and other climate research institutes Universities Regional Climate Centres GAW World Data Centres GCOS Data Centres Global Run-off Data Centre Global Precipitation Climatology Centre Satellite Dissemination IGDDS, EUMETSAT, etc. World Radiation Centre Regional Instrument Centres International Organizations (IAEA, CTBTO, UNEP, FAO.. ) Commercial Service Providers WMO World Data Centres Internation projects (eg GMES HALO) Internet Area Meteorological Data Communication Networks (AMDCNs) Satellite Two-Way System WIS core network GISC NC DCPC Internet NC GISC NC DCPC NC/ DCPC KEY: NC = National Centres GISC = Global Information System Centres DCPC = Data Collection or Production Centres Real-time "push" On-demand "pull " WMO World Data Centres Internation projects (eg GMES HALO)

5 October 2011WIS Overview5 Status of WIS 3 GISCs and 4 DCPCs have been audited –DWD (GISC) –JMA (GISC) –CMA (GISC) –Eumetsat (DCPC) –ECMWF (DCPC) –Arctic Datacenter (DCPC) INMET Météo France, UK, NOAA will come online this year

6 October 2011WIS Overview6 Some GISCs / Japan

7 October 2011WIS Overview7 Some GISCs / DWD

8 October 2011WIS Overview8 WIS metadata WIS metadata is ISO19139 based Data owners create and maintain metadata WMO core profile of ISO mandatory for WMO community internal metadata Have concluded that ISO19139 requires ISO19136, thus enfore gml compat. Use the schema at

9 October 2011WIS Overview9 WIS and WIGOS WIGOS is at an early development stage WIGOS will use the WIS infrastructure for data exchange and metadata => Compatibility with WIS crucial for future WIGOS activities

10 October 2011WIS Overview10 WIS internal metadata synchronization NCs/DCPCs upload metadata to affiliated GISC GISCs make metadata of their affiliated centres available in OAI-PMH set All GISCs harvest from all other GISCs its part of the catalogue

11 October 2011WIS Overview11 metadata synchronization between WIS and GEOSS The whole WIS catalogue is available at each GISC Can be harvested regularly with OAI- PMH But what about validation? GISC Offenbach GEOSS clearinghouse GISC Tokyo Other GISC OAI harveesting

12 October 2011WIS Overview12 Problems & Issues Huge catalogue (initially 100k records, but can grow to >1m) leads to potentially prohibitively big search results  Large search results need to be visualized appropiately  Browsing can help, but needs automatic partitioning Is some sort of clustering the answer? Different communities have different search behaviour  Experts search for « precipitation », laymen for « rain »  Ontologies might help, but  Impossible to agree one ontology  => intelligent search algorithms needed

13 October 2011WIS Overview13 Questions About ISO which ISO19139 do you use? - how do you deal with situations where different schemata are used? About OAI-PMH - do you have experiences with large scale OAI- PMH systems - might loose updates due to « delta » syncing


Download ppt "World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS) WMO Presented by Timo Pröscholdt WIS."

Similar presentations


Ads by Google