The WMO Information System (WIS)

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Presentation transcript:

The WMO Information System (WIS) WIS-Overview 101 11 April 2017 World Meteorological Organization (WMO) Observing and Information Systems Department WMO Information System (WIS) WMO The WMO Information System (WIS) Presented by Timo Pröscholdt <tproescholdt@wmo.int> WIS Professional Officer for WIS

WMO: Observations, Models, Data and Information WIS-Overview 101 WMO: Observations, Models, Data and Information 11 April 2017 October 2011 WIS Overview

Global Telecommunication System (GTS) WIS-Overview 101 Global Telecommunication System (GTS) 11 April 2017 Exeter Sofia Melbourne Buenos Aires Tokyo Beijing Nairobi Washington Cloud I Jeddah Prague Toulouse Dakar Algiers Offenbach Brasilia Cairo New Delhi Moscow Cloud II October 2011 WIS Overview

Types of Centres: GISCs, DCPCs, and NCs WIS-Overview 101 11 April 2017 Types of Centres: GISCs, DCPCs, and NCs International Organizations (IAEA, CTBTO, UNEP, FAO.. ) GAW World Data Centres GCOS Data Centres Global Run-off Data Centre Global Precipitation Climatology Centre World Radiation Centre Regional Instrument Centres Internet DCPC IRI and other climate research institutes Universities Regional Climate Centres NC Internet NC Area Meteorological Data Communication Networks (AMDCNs) NC/ DCPC NC/ DCPC GISC NC Commercial Service Providers NC WIS core network GISC GISC NC NC DCPC KEY: NC = National Centres GISC = Global Information System Centres DCPC = Data Collection or Production Centres Real-time "push" On-demand "pull" GISC GISC DCPC Satellite Dissemination IGDDS, EUMETSAT, etc. WMO World Data Centres Internation projects (eg GMES HALO) WMO World Data Centres Internation projects (eg GMES HALO) Internet Satellite Two-Way System Internet NC NC NC NC October 2011 WIS Overview

Status of WIS 3 GISCs and 4 DCPCs have been audited WIS-Overview 101 Status of WIS 11 April 2017 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 October 2011 WIS Overview

Some GISCs / Japan http://www.wis-jma.go.jp/cms/ October 2011 WIS Overview

Some GISCs / DWD http://gisc.dwd.de October 2011 WIS Overview

WIS metadata WIS metadata is ISO19139 based WIS-Overview 101 WIS metadata 11 April 2017 WIS metadata is ISO19139 based Data owners create and maintain metadata WMO core profile of ISO 19139 mandatory for WMO community internal metadata Have concluded that ISO19139 requires ISO19136, thus enfore gml 3.2.1 compat. Use the schema at http://wis.wmo.int/2011/schemata/iso19139_2007/schema.xsd October 2011 WIS Overview

WIS and WIGOS WIGOS is at an early development stage WIS-Overview 101 WIS and WIGOS 11 April 2017 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 October 2011 WIS Overview

WIS internal metadata synchronization WIS-Overview 101 WIS internal metadata synchronization 11 April 2017 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 October 2011 WIS Overview

metadata synchronization between WIS and GEOSS WIS-Overview 101 metadata synchronization between WIS and GEOSS 11 April 2017 The whole WIS catalogue is available at each GISC Can be harvested regularly with OAI-PMH But what about validation? GEOSS clearinghouse OAI harveesting GISC Offenbach GISC Tokyo Other GISC October 2011 WIS Overview

Is some sort of clustering the answer? WIS-Overview 101 Problems & Issues 11 April 2017 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 Existing centres within WMO Member States may apply for designation as one of the three types of WIS Centers. So far, WMO Members have proposed 13 candidate GISC's and about 110 candidate DCPC's. The final number of designated WIS Centres will likely be over 300. To be officially designated as a WIS Centre requires a demonstrated capability to implement the WIS Compliance Specifications There are specific procedures for having a candidate WIS Centre endorsed by WMO Expert Teams. October 2011 WIS Overview

Questions About ISO19139 - which ISO19139 do you use? WIS-Overview 101 Questions 11 April 2017 About ISO19139 - 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 October 2011 WIS Overview