Slide: 1/30WMO TECO-WIS Seoul 07 Nov 2006 [email protected] Service provider for...

Slide: 1/30 WMO TECO-WIS Seoul 07 Nov 2006 [email protected]

Service provider for environmental near-real-time data dissemination

EUMETSAT

Satellite based data dissemination systems

Lothar Wolf


Overview

• Today: Description of existing operational satellite based dissemination system - EUMETCast

• The Future: An interoperable satellite based dissemination system with global coverage - GEONETCast


EUMETSAT Objectives

... The primary objective is to establish, maintain and exploit European systems of operational meteorological satellites.

A further objective is to contribute to the operational monitoring of the climate and the environment as well as the detection of global climatic changes.


EUMETSAT’s Mission is….

... to deliver operational satellite data and products thatsatisfy the meteorological and climate data requirements of its Member States - 24 hours a day, 365 days a year.

This is carried out according to the recommendations of the World Meteorological Organization (WMO).


EUMETSAT Headquarters


EUMETSAT Control Centre


EUMETSAT Dissemination Services

• Dissemination of EUMETSAT Meteosat and METOP data

• Dissemination of Foreign Satellite Data (e.g. GOES, MTSAT)

• Meteorological Products and Forecast Data (ECMWF, DWD, MetOffice)

• DWDSAT

• DCP

• MDD (WMO Region 1) (including PUMA/AMESD)

• BMD (WMO Region 6)

• EARS (EUMETSAT Advanced Re-transmission System)

• GEONETCast trial service

All those services make use of the EUMETCast framework


EUMETCast

•Generic (open and flexible), multi-mission dissemination system based on the standard DVB multicast technology and a combination of communication infrastructure

•Independent of local (network) infrastructure at the reception side

•Simultaneous product availability across the broadcast footprint

•Closed-loop product and performance monitoring

•High SLA of 99.50% with very rigid, guarantied and mission related timeliness (e.g. 3m50sec MET8 image timeliness across EUMETCast footprint)

•Scalable by usage of commercial telecommunication satellites (using a set of broadcast forward channels)

•Allowing the usage of off-the shelf, commercial, inexpensive equipment for reception

• File level encryption including the ability of “Denial of Service” to endorse data policy


EUMETCast System Components

Satellite 1

Uplink Provider

EUMETSATService

Management

EUMETSATas DataProvider

ExternalData

Provider 1

ExternalData

Provider n

Comm unicationlines

TurnaroundProvider 1

Users

Users

Users

TurnaroundProvider N

Satellite 2

Satellite N

w


EUMETSAT’s role as EUMETCast Service Management Provider

DWD

EUMETSAT

SAFs

UsersEUMETSAT DVB Uplink

EARS

Other Sources

DVB Broadcast

Data

Others…Service Management


EUMETCast Communication System Integration

Networks used for Data Acquisition and Dissemination

• WMO and regional networks (GTS, RMDCN)

• Private networks

• IP-VPN networks

• Internet

• Broadcast (including encryption and mission oriented guarantied timeliness)

EUMETSAT is involved in all WMO related activities (WIS, VGISC/SIMDAT, IGDDS etc.)


EARS Project as example of combined communication infrastructure

Tromsø

Maspalomas

Site N

ProductProcessing Node

ProductProcessing Node

Product Processing Node


EUMETCastBroadcast Up-link

EUMETCastBroadcast Up-link

IP VPN Network



EUMETSAT

Upgraded bandwidth 128 kbs > 512 kbs

Upgraded bandwidth 128 kbs > 512 kbs

ASCAT Level 2ASCAT Level 2

KNMI

Improved redundancy

EARSControl

EARSControl


EUMETSATAdvanced

RetransmissionService

Regional

30 min.

Global DataDump

Global

3-6 hours

HRPT Reception

Local

Immediate

Global DataDump

Global

3-6 hours

HRPT Reception

Local

Immediate

EARS Project as example for near-real time product availability


BMD as example for a non-imagery mission

From 1 September 2005 the RA VI Basic Meteorological Data (BMD) became operational for a two year pilot phase.

Service contains:

• SYNOP, TEMP, PILOT, Warnings and Tropical Cyclone data:

• Forecast data in GRIB format from ECMWF and DWD:

• Charts of WAFS, Aerological Diagrams, basic meteorological field parameters and observations in graphical form.

Access to BMD is restricted to the WMO members (National Meteorological Services and partner

organisations) of the WMO Regional Association VI.


Procedure to become a EUMETCast Data Provider

- Specification to EUMETSAT:Data (files) to be transmitted, with attributes

Size

Frequency (per hour, day, week, month …)

Time (hh:mm) of transmission

Timeliness requirements

- Discussion/clarification with EUMETSAT of technical issues (like need for a segmentation of files for very large file sizes)

- Test Phase:File transfers from Data Provider to Uplink Service Provider,

transmissions via satellite, Reception Station handling

- Request to the STG OPSWG for inclusion of this data into the EUMETCast services, subsequent endorsement by STG/Council

- Inclusion into the operational EUMETCast schedule


EUMETCast Europe Coverage

HB-6, Ku-Band Coverage


EUMETCast Africa Coverage

AB-3, C-Band Coverage


EUMETCast South America Coverage

NSS 806, C-Band Coverage Begins Q2 2006


The Future

- EUMETCast as service framework for current and pre-operational mission data delivery with guarantied timeliness

- EUMETCast as technology core for the implementation of a satellite multicast based dissemination system for environmental data with global coverage: GEONETCast


GEONETCast Background

- Ministers agreed at the third Earth Observation Summit in February 2005 to develop the GEOSS to meet the need for timely, quality, long-term global environmental information as a basis for sound decision making and to enhance delivery of the benefits to society.

- GEONETCast is a dissemination system under development by which GEOSS environmental satellite and in situ data and products from participating Data Providers will be transmitted to users using a multicast, access controlled, broadband capability.

- Especially useful for less developed or low infrastructure areas

- Participation in GEONETCast as a data provider, end user, or dissemination infrastructure provider is voluntary.

- The intergovernmental Group on Earth Observations (GEO) has defined the GEONETCast task as Capacity Building Task #CB-06-04 with oversight by the GEO Architecture and Data Committee


GEONETCast Benefits

- A key feature in increasing the use of environmental data globally is to make it accessible to all nations in a cost-effective and efficient manner.

- Given the rapidly increasing volume and diversity of data and products, particularly from earth observation and environmental satellites, this presents a real challenge. Adding to the complexity of the situation is the diversity of organisations and national entities involved in earth observation satellite systems, in-situ observations and production activities.

- The introduction of a coordinated, coherent, global dissemination scheme that addresses the existing problems of data dissemination is to be welcomed, and GEONETCast has the potential to achieve these goals in coordination with other data dissemination methods.

- GEONETCast promises to facilitate and enhance access, particularly for developing countries, to key environmental data in the nine societal benefit areas of GEO.


GEONETCast Status

• EUMETCast, operated by EUMETSAT, currently provides the operational dissemination infrastructure that hosts GEONETCast. This provides geographic coverage of Europe, the Middle East, Africa, and South, Central and most of North America.

• Discussions have started with the Chinese Meteorological Administration (CMA) to integrate FengYungCast into GEONETCast. This would provide geographic coverage of the Asia/Pacific region. A first data exchange trial has been started and is demonstrated at CGMS in Shanghai.

• NOAA has a stated initial intention to establish a dissemination system providing comprehensive coverage of the Americas known as GEONETCast Americas. Users in the region will be provided with a long-term perspective for access to GEONETCast. A data exchange trial was established during summer including a local American beam demonstrated in Seattle.

• The GEONETCast concept was also presented during various GEO conferences and during this years EUMETSAT African User Conference (Maputo)


GEONETCast Status

• Together, these three regional systems (EUMETCast, FengYunCast and GEONETCast Americas) form GEONETCast, and have the capability to provide global coverage.

AsiaSat-4

GEONETCast Evolution to global coverage


GEONETCast Status

• The added value that GEONETCast brings is to facilitate and enhance access, particularly for developing countries, to key environmental data in the nine societal benefit areas of GEO by applying standards across, and encouraging the development of, regional systems.

• These three regional systems are seen as the minimum required to establish global geographic coverage. Should additional regional systems be made available the GEONETCast concept can easily accommodate them.


GEONETCast System Design Overview

- GEONETCast Regional Network Centre - GNC

- Re-use of EUMETCast framework- Re-use of technical standards

- High level design of GEONETCast implementation via interconnected GNC

- Re-use of existing networks for data acquisition- Re-use of service standards- Central point of entry for users (one stop shop)

Satellite 1

Uplink Provider

GNC Service Management- users- data policy- infrastructure- Ops Implementation Group Member- Portal

GNCas Data Provider

External Data

Provider 1

External Data

Provider n

Communication lines

Turnaround Provider 1

Users

Users

Users

Turnaround Provider N

Satellite 2

Satellite N

w

Other GNCs

User access to portal

GEONETCast Network Centre

Communication lines for data

exchange between GNCs

- GTS- RMDCN- Internet- IP-VPN- Leased Line





Data Provider(s)

Data Provider(s)

Data Provider(s)



GEONETCast Regional Network Centre - GNC

- Re-use of EUMETCast framework

- Re-use of technical standards

Satellite 1

Uplink Provider

GNC Service Management- users- data policy- infrastructure- Ops Implementation Group Member- Portal

GNCas Data Provider

External Data

Provider 1

External Data

Provider n

Communication lines

Turnaround Provider 1

Users

Users

Users

Turnaround Provider N

Satellite 2

Satellite N

w

Other GNCs

User access to portal



High level design of GEONETCast implementation via interconnected GNC

- Re-use of existing networks for data acquisition

- Re-use of service standards

- Central point of entry for users (one stop shop)


Communication lines for data

exchange between GNCs






Data Provider(s)

Data Provider(s)

Data Provider(s)


GEONETCast Current and Planned coverage

AsiaSat-4

GEONETCast Evolution to global coverage


GEONETCast

- GEONETCast further information:

http://www.geonetcast.org

- GEONETCast Implementation Team collaboration:

http://wiki.geonetcast.org


Service provider for environmental near-real-time data dissemination

EUMETSAT

Satellite based data dissemination systems

For more information on EUMETCast please visit our web site: http://www.eumetsat.int

Slide: 1/30WMO TECO-WIS Seoul 07 Nov 2006 [email protected] Service provider for...

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