GEONETCast is a global network of satellite-based data dissemination systems providing environmental data to users around the world.

Last Updated

12 September 2022

Published on

30 April 2020

Aim of GEONETCast

"To strengthen international cooperation on global Earth Observation"

GEONETCast is a milestone in the Global Earth Observation System of Systems (GEOSS), coordinated by the intergovernmental Group on Earth Observation (GEO).

It 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
  • 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.

GEONETCast products

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

  • Meteosat image data
  • GOES East and West image data
  • FY-2 image data
  • Land and Ocean Sea Ice Satellite Application Facility (SAF) products
  • EUMETSAT meteorological products
  • NOAA-NESDIS meteorological products
  • NOAA-NESDIS Ocean colour and sea surface temperature products
  • VEGETATION products from VITO
  • MODIS Ocean colour products
  • In-situ and observational data

GEONETCast infrastructure

The idea of a global GEONETCast service 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.

Current partners include the China Meteorological Administration (CMA), the National Oceanic and Atmospheric Administration (NOAA), the World Meteorological Organization (WMO) and EUMETSAT, as well as many prospective data provider partners.

GEONETCast service

Example of how to use GEONETCast

GEONETCast broadcast streams

Delivery Media Description
EUMETCast EUMETCast is the EUMETSAT contribution to GEONETCast with coverage over Europe, Africa and the Americas. Established in 2004, EUMETCast has more than 4,000 registered reception stations with more than 3,200 users benefiting from the environmental data it provides.
CMACast CMACast 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 Broadcast covering the Americas, managed by NOAA.

Key GEONETCast satellite data providers

  • EUMETSAT — Meteosat (every 15 minutes) and Metop (per local satellite pass) satellite data
  • NOAA — GOES and POES satellite data and NOAA-NESDIS products (atmospheric and marine)
  • CMA — FY-1/2 satellite data
  • JMA — MTSAT satellite data

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 National Environmental Satellite, Data and Information Service — for atmospheric applications
  • ECMWF/Met Office, Deutscher Wetterdienst, Météo-France — Observational and forecast products for atmospheric, marine and land applications

User registration

Users interested in receiving products and services delivered via GEONETCast should register with GEONETCast network provider covering their geographical location. Users should register on the Earth Observation Portal for services provided by EUMETCast (EUMETCast-Europe, EUMETCast-Africa, EUMETCast-America).

To register for CMACast reception, please contact the China Meteorological Administration


Feedback is welcomed, from:

  • Data providers interested in using the GEONETCast framework to disseminate products and services to users.
  • Users, about the types of services they would like to receive.

Please use the GEONETCast Feedback Form