1. 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 WIS Professional Officer for WIS

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

3. 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

4. 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

5. 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

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

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

8. 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 mandatory for WMO community internal metadata
Have concluded that ISO19139 requires ISO19136, thus enfore gml compat.
Use the schema at
October 2011
WIS Overview

9. 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

10. 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

11. 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

12. 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

13. 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