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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

stopstop

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