gts as wis component
DESCRIPTION
GTS as WIS Component. Kevin Alder RA V Coordinator of the Subgroup on Regional Aspects of ISS Member, ET on WIS-GTS CTS Meteorological Service of New Zealand Limited. Contents. Function of the GTS Organisation of the GTS Design Principles Governance Implementation WIS Services - PowerPoint PPT PresentationTRANSCRIPT
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GTS as WIS Component
Kevin AlderRA V Coordinator of the Subgroup on Regional Aspects of ISSMember, ET on WIS-GTS CTS Meteorological Service of New Zealand Limited
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Contents
• Function of the GTS• Organisation of the GTS• Design Principles• Governance• Implementation• WIS Services• WIS Implementation
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Function of the GTS
• to facilitate the flow of data and processed products to meet WWW requirements in a timely and cost-effective way, ensuring that all members have access to data and products in accordance with approved procedures and within agreed limits of the WWW system
• It also gives telecommunications support to other programmes, as decided by the WMO Congress or the Executive Council, within the limits of its primary objectives.
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Executive Council
“…emphasized that with the sustained progress benefiting from Information & Communication Technology (ICT) development made in its implementation, operation and upgrade, the GTS, including satellite-based data-distribution systems and the Improved MTN, would effectively contribute to the WIS implementation as the core communication component for exchange and delivery of time and operation-critical data and products.”
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Organisation
• The GTS shall be so organised as to accommodate the volume of information and its transmission within required time limits to meet the needs of World, Regional Specialised and National Meteorological Centres
– Main telecommunication network linking together WMCs and designated RTHs
– Regional telecommunication networks– National networks
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Six Design Principles
• For the collection, exchange and distribution of information on a world-wide basis to meet the needs of all NMS as well as WMCs and RSMCs within the agreed WWW system
• An integrated network with point to point, point to multi-point and multi-point to point circuits
• Circuits are adequate to accommodate the volume of information exchanged
• Designed to ensure the highest practicable reliability and availability
• Will connect NMCs, RSMCs, RTHs, and WMCs• Diversity provided through alternative routing
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GTS Governance
• The GTS includes mechanisms to facilitate information management and information exchange, in response to changing requirements
• How communication links are implemented with a Region is the responsibility of that Regional Association
• Governance includes data management, quality controls, deployment of new technologies and real-time and non real-time monitoring
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GTS Implementation
• Point to point circuits operating over leased lines
• Point to multi-point circuits operating over satellite e.g. EMWIN in RA IV and RA V
RA-IV RMTN over ISCSMDD in RA I
DAB in RA II
• Managed Data Networks e.g. RMTN RA VI and most of the MTN
• Internet
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World Meteorologic
al Centres
WWW GTS
Regional/Specialized Meteorological
CentresNational
Meteorological
Centres
Meteorological and R&D Satellite Operator
Centres
Current situation: GTSInformation exchange agreed procedures; real-time
Information management agreed data formats; implicit metadata; catalogues
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Information managementmultiplicity of data formats; uncoordinated metadata and catalogues
Current situation (GTS + other WMO programmes networks)
Information exchange multiplicity of procedures; real-time and non-real time
internet
5 GAW World Data Centres
GCOS Data Centres
Global Run-off Data Centre
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IRI and other climate research institutes
Universities
Regional Climate Centres
stopstop WWW
GTS
World Meteorologica
l Centres
Regional/Specialized Meteorological
Centres
National Meteorologic
alCentres
Meteorological and R&D Satellite Operator
Centres
International Organizations (IAEA, CTBTO, UNEP, FAO.. )
Commercial Service
Providers
World Radiation Centre
Regional Instrument Centres
WMO World Data Centres
stopstop
stopstopstopstop
stopstop
WWW GTS
Real-time “push”
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Information exchangeCommon procedures; real-time, non-real time
5 GAW World Data Centres
GCOS Data Centres
Global Run-off Data Centre
IRI and other climate research institutes
Universities
Regional Climate Centres
International Organizations (IAEA, CTBTO, UNEP, FAO.. )
Commercial Service
Providers
World Radiation Centre
Regional Instrument Centres
WMO World Data Centres
Information managementa few standard data formats; coordinated metadata and catalogues
Real-time “push”
On-demand “pull”
internet
DCPC
NC/DCPC
NCNC
NC/DCPC
NC
NC
NC
NC
NC
NC
GISC
GISCGISC
SatelliteTwo-Way System
Satellite Dissemination
NC
NC
DCPC
GISC GISC
DCPC
WISWIS
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WIS Services
(1) Routine collection and dissemination service for time-critical and operation-critical data and products:
Based on real-time “push” mechanism (including Multicast); implemented essentially through dedicated telecommunication means with guaranteed quality of service, e.g. leased circuits, dedicated data communication network services and satellite-based data-distribution systems;
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WIS Services
(2) Data Discovery, Access and Retrieval service:
Based on request/reply “pull” mechanism with relevant data management functions; implemented essentially through the Internet (HTTP, FTP,…);
(3) Timely delivery service for data and products:
Based on delayed mode “push” mechanism, implemented through a combination of dedicated telecommunication means and of public data networks, especially the Internet
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IGDDSGTS
Data pull
Data push
WIS
WIS DATA-COMMUNICATIONS FUNCTIONS AND SERVICES(weather, water, climate and related data and products)
WIS/GTS: for time and operation-critical data & products WIS/IGDDS: for space-based data & productsWIS/DAR: data discovery, access and retrieval Data push: routine distribution of data & productsData pull: access to and retrieval of data & products
DAR
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WIS/GTS: for time and operation-critical data & products WIS/IGDDS: for space-based data & productsWIS/DAR: data discovery, access and retrieval Data push: routine distribution of data & productsData pull: access to and retrieval of data & products
Data pull
Data push
WIS DATA-COMMUNICATIONS FUNCTIONS AND SERVICES(weather, water, climate and related data and products)
Essentially through telecom. with guaranteed quality of service, e.g. leased circuits, dedicated data com network services, sat.-based systems, ..
GTS
Essentially through the Internet(HTTP, FTP, VPN…)
DAR
WIS IGDD
S
Essentially through satellite based data distribution systems, e.g. DVB-S
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WIS Implementation
Phase A
Is the continued consolidation and further improvements of the GTS for time-critical and operation-critical data, including its extension to meet operational requirements of WMO programmes in addition to World Weather Watch (including improved management of services)
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WIS Implementation
Phase B
Would provide for an extension of the information services through flexible data discovery, access and retrieval services to all users, as well as flexible timely delivery services (target for the GISC-DCPC prototype demonstrations)
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WIS Implementation
IGDDS - WMO Space Programme
The current development of IGDDS as a component of the WIS will focus on the exchange of space-based observation data and products contributes to phase A and B.
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World Weather Watch
GTS
Realtime Data Exchange
Climate Change
Research
Hydrology Oceanography Disaster Prevention
WISWMO Common Infrastructure
Environment
Capacity Building
Agriculture
Data Collection
/distributionData PortalRequest/Reply
Discovery
MetadataMulti-HazardWarnings
Evolution
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Questions