"Climate change is a major global issue and few people will argue about its effects or that it is linked to extreme weather events," says Dai Davies, General Manager of DANTE, which manages the GEANT2 network. "This makes the need for accurate weather prediction even more critical than ever before."

Mr Davies points to recent natural disasters such as floods in Mozambique and central Europe, droughts in Spain, Portugal and Mali, and the destruction of Hurricane Katrina. Such natural disasters destroy people's lives and livelihoods, particularly in the developing world.

"The ability to forecast weather on a global basis could help prevent these natural disasters from causing such devastation, but until now, sharing the vast amount of data necessary has been difficult because of technology and networking constraints," he explains. "Another challenge has been that the data is perishable."

National weather centres, led by the Deutscher Wetterdienst (DWD) are working together to create a Global Interactive Forecasting System (GIFS), which will use the latest technology for more accurate and timely forecasting. GIFS will use GEANT2 to transfer critical, time-sensitive data among researchers.

"GIFS will be able to transmit as much as 500 Gigabytes of data daily. That's equivalent to more than 700 CDs worth of data. The international connectivity overcomes the cost of high capacity links and enables meteorological services to work together to combine data and skills," Mr Davies says. "This will speed up weather forecasting and allow meteorologists to make more accurate and timely predictions."

To share the power of national weather computers, GIFS will use advanced Grid computing technology that will allow processing workloads to be shared across national weather computers automatically via GEANT2 and national networks. It plans to conduct feasibility studies during 2006/2007, operational tests in 2008 with the aim of full operation within 10 years.

GEANT2 itself connects 34 countries through 30 National Research and Education Networks. With an estimated 30 million users across the continent, the network offers unrivalled geographic coverage, high bandwidth, innovative hybrid networking technology and a range of user-focused services.

It builds on the global connectivity established by its predecessor, GEANT, a flagship project created in 2000 under the European Commission's IST programme, linking Europe to North America, Japan and other regions, building a foundation for global collaboration.

"The cost of connectivity has decreased by a factor of 10,000 over the past 10 years," says Mr Davies. "GEANT2 is the first hybrid network operating on an international scale. With this powerful communication infrastructure, we can do things today we never even dreamed of."

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