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GEONETCast Facility

GEONETCast Ground Reception Station at the Environmental and Water Science Section 

GEONETCast is a near real time, global network of satellite-based data dissemination systems designed to distribute space-based, air-borne and in situ data, metadata and products to diverse communities.

GEONETCast is a task in the Group on Earth Observation (GEO) work plan to realize the Global Earth Observing System of Systems (GEOSS). It is led by EUMETSAT, the United States, China, and the World Meteorological Organization (WMO). Many GEO Members and Participating Organizations contribute to this Task.

GEO - Group on Earth Observations

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Intergovernmental organization was established in May, 2005

Promotes the concept of establishing global earth observation system

Global Earth Observation System of Systems (GEOSS).

The GEOSS Common Infrastructure allows the user of Earth observations to access, search and use the data, information, tools and services available through the Global Earth Observation System of Systems.

GEONETCast is a Task in the GEO Work Plan and is led by EUMETSAT, the United States, China, and the World Meteorological Organization (WMO). 


Aim of GEONETCast

  • GEONETCast is a milestone in the emerging Global Earth Observation System of Systems (GEOSS) that is being coordinated by the intergovernmental Group on Earth Observations (GEO), and is designed to put a vast range of essential environmental data at the fingertips of users around the globe.
  • This user-driven, user-friendly and low-cost information dissemination service aims to provide global information as a basis for sound decision-making in a number of critical areas, including public health, energy, agriculture, weather, water, climate, natural disasters and ecosystems.
  • Accessing and sharing such a range of vital data will yield societal benefits through improved human health and well-being; environment management, and economic growth.
  • Within the existing framework, GEONETCast is already partially realising this goal with environmental data exchange and data delivery available in Europe, Africa and the Americas.
  • An additional data exchange is now being established covering the Asia Pacific region.

Products and Services Disseminated via EUMETCast – Africa on the GEONETCast System


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 The following products and services are being made available to the GEONETCast user community:

 

GEONETCast Infrastructure

The conceptual idea of a global GEONETCast implementation is that several regional centres take on the responsibilities for establishing a satellite-based regional dissemination system — based upon Digital Video Broadcast (DVB) technology — and provide complementary services to a common user community.

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GEONETCast Broadcast Streams

  • EUMETCast :  is the EUMETSAT contribution to GEONETCast with coverage over Europe, Africa and the Americas. Established in 2004, EUMETCast has more than 2,000 registered reception stations with more than 1,600 users benefiting from the environmental data it provides.
  • CMAcast (FengYunCast): is the China Meteorological Administration’s contribution to GEONETCast. CMACast utilises the AsiaSat 4 satellite beam to broadcast data and products to a user community in the Asia Pacific region.
  • GEONETCast-Americas:  managed by the United States National Oceanic and Atmospheric Administration (NOAA) and broadcasts to North, Central, and South America.

GEONETCast Coverage

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Key GEONETCast Product Data Providers

  • EUMETSAT: Meteorological products for atmospheric, land and marine applications
  • EUMETSAT Satellite Application Facilities (SAFs): Meteorological products for atmospheric, land and marine applications
  • VITO: Various products derived from SPOT-Vegetation for land applications.
  • NOAA: NOAA-NESDIS products for atmospheric applications
  • ECMWF/Met Office, Deutscher Wetterdienst, Météo-France: Observational and forecast products for atmospheric, marine and land applications

Technical features of the system

  • Secure delivery allows multicasts to be targeted to a specific user or group of users thus supporting any required data policy;
  • handling of any file format, allowing the dissemination of a broad range of products;
  • use of DVB turnarounds allows the easy extension of geographical coverage;
  • one-stop-shop delivery mechanism allows Users to receive many data streams via one reception station;
  • an installed User base of over 1700 User stations;
  • use of off-the-shelf, commercially available, DVB reception equipment;
  • highly scalable system architecture;

EumetCast Architecture

 Master station and satellite transponder                                                                       Data (re) broadcast subsystem
 
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GEONETCASTCast Overview

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GEONETCast Client service subsystem

 Tellicast
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 Eurobird coverage and satellite transponder settings

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Ku-band Transponder         EUROBIRD™ 9

Parameter

Value

Name

EUROBIRD™ 9

Transponder

TP63

Down Link Frequency

11976.82 MHz

Symbol Rate

27500 kS/s

FEC

3/4

Polarization

horizontal

 
 
 
Min. Antenna Size with 2W/3W BUC and EIRP: 47dBW = 90cm, 45dBW = 120cm, 40dBW = 180cm
  
Satellite Data: TX Freq: 13.75-14.0 GHz (extended uplink frequency) / Rx Freq: 10.95 - 11.7 GHz (PLL LNB required)
 

Atlantic Bird coverage and satellite transponder settings

 
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C-band Transponder          Atlantic Bird™

Parameter

Value

Name

Atlantic Bird™ 3

Transponder

C02

Down Link Frequency

3731.7570 MHz

Symbol Rate

11.963 MS/s

FEC

2/3

Polarization

Circular Left Hand









 NSS-806 coverage and satellite transponder settings

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From satellite broadcast to on site reception

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Examples of Products and Data Received at UWC

  •  Daytime standard colour scheme MSG: IR_016, VIS008, VIS006 in RGB for 17 July 2012 at 13:30 UTC

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  • DayTime Microphysical Colour Scheme, VIS006, IR_039 and IR_108 in RGB for 17 July 2012 at 13:30 UTC

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  • Meteosat 7 disk of 31 July 2012 , at 0900 UTC, channel 007

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  • Classified cloud mask map of 31 July 2012, 12:00 UTC

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  • Multi Sensor Precipitation Estimate of 31 July 2012, 12:00 UTC

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  • MPE over a daytime microphysical colour scheme composite of 31 July 2012, 12:00 UTC

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Links

Contact

For a full list of services available on GEONETCast and access to data received please contact us on
Mr Henok Solomon
Tel: 021 959 2820
Email: hsolomon@uwc.ac.za
Environmental and Water Science,
Earth Science Department,
3rd Floor, Core 2, New Life Science Building

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Bellville, 7535,
Republic of South Africa

info@uwc.ac.za | +27 21 959 2911

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