© Crown copyright Met Office Status Report WIS – WMO Information System Chris Little, Met Office, Co-chair OGC Met. & Oceanography Domain WG

© Crown copyright Met Office

Status ReportWIS – WMO Information System

Chris Little, Met Office, Co-chair OGC Met. & Oceanography Domain WG



New WMO Information System

WIS Background SummaryWMO Telecoms, GTS, is reliable, inflexible, ‘push’ only

Still many point-to-point links

Managed Network in Europe with two roles:– Areal Meteorological Data Comms Network AMDCN– Global Core/Main Trunk Network MTN

Some of Eastern Europe/Caucasus not yet joined

Some global centres still joining MTN– Brasil – consultant helping with telecom procurement– Canada – lawyers reading the agreement– South Africa - connected 2011-11-24, last week!

Other regions’ AMDCNs not yet happened.


WIS Components - 1

1. Global Information System Centre (GISC)Global Catalogue + 24 hour operational Global Data Cache

Exchanges information & synchronises with other GISCs

Receives information from NCs and DCPCs

Ensures around-the-clock, reliable and secure operations

2. National Centre (NC) maybe >1 per maybe >1 per country

Country collected/generated information sent to GISC/DCPC

Portal for national users & administrates their access to WIS

Generate standardised metadata as well as data


3. Data Collection & Production Centre (DCPC)

Neither GISC or NC: information production facility, regional or global

Generates, maintains and makes accessible standardized metadata catalogues of its data holdings through GISCs

Supports information “Push” and ”Pull” mechanisms

May facilitate access/exchange from/to NCs and GISCs

Replaces/enhances Regional Telecom Hubs RTHs

Replaces Regional Specialised Met. Centres RSMCs

WIS Components - 2

WIS Interoperability StandardsWMO Data FormatsWMO Telecoms protocols + WMO Extranet + ‘Push’WMO processes WMO Data Formats (though format neutral)Internet + WMO Extranet Global Catalogues

– ISO19115+ISO19139+WMO profile V1.2 +ISO19119– ISO23950+SRU1.3 (+CSW?)– OAI-PMH

Global Cache (Bit Torrent to be piloted & proposed)‘Push & Pull’ Dissemination Ad Hoc & Subscription

(PubSub?)


WIS live catalogue demo! WMO Congress Geneva May 2011

Scenario: How WIS can help with a (imaginary) food security analysis


5 GISCs endorsed by WMO4 Technology solutions:• CMA China Meteorological Administration (own software)• DWD Deutscher Wetter Dienst (IBL Moving Weather)• JMA Japan Meteorological Agency (own software, RSS)• Météo-France (OpenWIS)• UK Met Office (OpenWIS)

Interoperability of catalogues, and harvesting of information demonstrated between all nodes, plus Brazil, Iran, NCAR

Harvesting protocol agreed by WMO: OAI-PMH: • Geonetwork (Lucene & Postgres)• Java OAI API (Oracle)

37 DCPCs endorsed by WMO

CMA China Meteorological Administration: 1

HKO Hong Kong, China: 1

DWD Deutscher Wetter Dienst: 10

JMA Japan Meteorological Agency: 8

Météo-France: 6

Norway: 1

UK Met Office: 8

ECWMF: 1

EUMETSAT: 1

http://www.wmo.int/pages/prog/www/WIS/centres/index_en.php

Now operational

Now operational



Operational

Operational


Demo links: GISCs, DCPCsUK Met Office user portal

http://wis.metoffice.gov.uk/openwis-user-portal/srv/en/main.home Search and find, then self registration for delivery

Météo-France user portal http://wisp.meteo.fr:8080/openwis-user-portal/srv/en/main.home

DWD Deutscher Wetter Dienst http://gisc.dwd.de

CMA China Meteorological Administration 国家气象信息中心简介 http://wisportal.cma.gov.cn/

JMA Japan Meteorological Agency http://www.wis-jma.go.jp/cms/

EUMETSAT EO Portal http://www.eumetsat.int/Home/Main/DataProducts/ProductNavigator/index.htm

Norway IPYhttp://arcticdata.met.no/


WIS Technologies - 1

Global Catalogue• Metadata: ISO 19115 + 19139

– WMO Profile 1.2– Services could be ISO19119

• Search with ISO23950 + SRU (+ CSW?)• Harvesting: OAI-PMH• Prototype: Geonetwork• Catalogue access for all• Default access policy, others supported

• No more than 24 hours out of date


WIS Technologies - 2Subscriptions• Subscriptions & ad-hoc retrievals for authenticated

and authorised users including self registered• Using OpenAM/SAML2 (was OpenSSO)• Need to agree subscription & backup standard

(OGC PubSub?)

Cache• 24 hours worth of all ‘Essential’, critical, data• Need to agree Content Distribution standard

(Vuze + BitTorrent?)• Stringent global performance standards (2 min

latency end-to-end maximum for Warnings)


OpenWIS demo (possibly)




Questions & Answers

Documents

© Crown copyright Met Office Status Report WIS – WMO Information System Chris Little, Met Office, Co-chair OGC Met. & Oceanography Domain WG