Eumetcast
Encyclopedia
EUMETCast is a scheme for dissemination of various (mainly satellite based) meteorological data operated by EUMETSAT, the European Organisation for the Exploitation of Meteorological Satellites. The main purpose is the dissemination of EUMETSAT's own data, but various data from other providers are broadcast as well.
EUMETCast is a contribution to GEONETCast and IGDDS (WMO's
World Meteorological Organization
The World Meteorological Organization is an intergovernmental organization with a membership of 189 Member States and Territories. It originated from the International Meteorological Organization , which was founded in 1873...

 Integrated Global Data Dissemination Service) and provides data for GEOSS and GMES.

Services

EUMETCast includes data from Meteosat
Meteosat
The Meteosat series of satellites are geostationary meteorological satellites operated by EUMETSAT under the Meteosat Transition Programme and the Meteosat Second Generation program....

 7 (Indian Ocean), 8
Meteosat 8
Meteosat 8 is a weather satellite, also known as MSG 1. The Meteosat series are operated by EUMETSAT under the Meteosat Transition Programme and the Meteosat Second Generation program. Notable for imaging the first meteor to be predicted to strike the earth, 2008 TC3...

 and 9, derived products, data from polar orbiting satellites (Metop-A and NOAA-18 global coverage, NOAA-17 and NOAA-18 European regional coverage) and data from other meteorological programmes. Most common formats used for satellite images are HRIT and LRIT, known under common name as XRIT.

Transmission Technology

EUMETCast uses the DVB-S
DVB-S
DVB-S is an abbreviation for Digital Video Broadcasting — Satellite; it is the original Digital Video Broadcasting forward error coding and demodulation standard for satellite television and dates from 1994, in its first release, while development lasted from 1993 to 1997...

 MPEG2 stream for encapsulating IP
Internet Protocol
The Internet Protocol is the principal communications protocol used for relaying datagrams across an internetwork using the Internet Protocol Suite...

 frames (IP over DVB
IP over DVB
IP over DVB or IP over MPEG implies that Internet Protocol datagrams are transferred over the MPEG transport stream, and are distributed using some digital television system, for example DVB-H, DVB-T, DVB-S or DVB-C.-Application examples:...

). At this IP layer, IP Multicast techniques are used for distributing the file based content. For this purpose, TELLICAST (an IP multicast software from Newtec (formerly Tellitec)) is used.

The primary transmission via Eutelsat
Eutelsat
Eutelsat S.A. is a French-based satellite provider. Providing coverage over the entire European continent, as well as the Middle East, Africa, India and significant parts of Asia and the Americas, it is one of the world's three leading satellite operators in terms of revenues.Eutelsat’s satellites...

's Eurobird
Eurobird
Eurobird is the name for a set of satellites owned by Eutelsat. The Eurobird satellites provide broadcasting and telecommunication services primarily to the Western and Central European region from orbital positions of 28.5, 25.5 and 33 degrees East....

 9 satellite (in Ku band
Ku band
The Kμ band is a portion of the electromagnetic spectrum in the microwave range of frequencies. This symbol refers to —in other words, the band directly below the K-band...

) can be received by most end users in Europe and is relayed via Eutelsat
Eutelsat
Eutelsat S.A. is a French-based satellite provider. Providing coverage over the entire European continent, as well as the Middle East, Africa, India and significant parts of Asia and the Americas, it is one of the world's three leading satellite operators in terms of revenues.Eutelsat’s satellites...

's Atlantic Bird
Atlantic Bird
Atlantic Bird is the name for a set of satellites operated by Eutelsat operating over the Atlantic Ocean.Two of the original three satellites replaced the France Telecom Telecom 2 series satellites which Eutelsat had acquired in 1999....

 3 (in C band
C band
The C band is a name given to certain portions of the electromagnetic spectrum, including wavelengths of microwaves that are used for long-distance radio telecommunications. The IEEE C-band - and its slight variations - contains frequency ranges that are used for many satellite communications...

, covers Europe and Africa) and SES New Skies
SES NEW SKIES
SES World Skies—formerly SES New Skies, New Skies Satellites , and SES Americom—is a Dutch operator of communications spacecraft, owned by SES.On 30 November 1998, several former Intelsat satellites were transferred to New Skies’ control...

' NSS-806 (in C band
C band
The C band is a name given to certain portions of the electromagnetic spectrum, including wavelengths of microwaves that are used for long-distance radio telecommunications. The IEEE C-band - and its slight variations - contains frequency ranges that are used for many satellite communications...

, covers both Americas).

The technology used makes it possible for end users to receive the data with regular off-the-shelf satellite TV equipment and a PC.

Licensing

The data policy distinguishes between essential and licensed data. Generally data may be used free of charge for scientific, educational or personal purposes, however for receiving licensed data registration is necessary and a hardware key (€ 40) has to be bought in order to decrypt the content. A License for the TELLICAST client software must be obtained for € 60.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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