Weather satellite set for launch

Metop-B, the second of the EUMETSAT Polar orbiting satellites, which provide data for use by meteorologists and climate scientists at the Met Office and around the world, will be launched today.

Metop-B is scheduled to be launched by a Soyuz rocket from Baikonur, Kazakhstan, at 17:28 BST and once in orbit will collect critical data for weather forecasters, such as the Met Office.

Using satellites to help create weather forecasts

Along with its partner satellite Metop-A, it will orbit the earth from pole to pole at an altitude of around 800 km, taking measurements including temperature, humidity and  cloud properties, as well as snow and ice cover, sea surface temperature and land vegetation.

All of this data is fed into the Numerical Weather Prediction (NWP) models that produce our weather forecasts up to 10 days ahead. NWP is the basis of all modern global and regional weather forecasting, providing forecast advice, severe weather warnings and other support to public and private decision making.

Information from the Metop satellites has become indispensible to weather forecasters. A recent study by the Met Office demonstrated that Metop-A observations contribute close to 25% of the performance of numerical weather prediction (NWP) forecasts.

The data gathered by Metop have revolutionised the way the Earth’s weather, climate and environment are monitored, both in the short term and in monitoring climate over decade-long data series of temperature, humidity, cloud cover and atmospheric gases such as carbon dioxide, methane and nitrogen dioxide.

David Willetts, Minister of State for Universities and Science said: “I welcome the launch of Metop B which will enable the Met Office to stay at the forefront of weather forecasting and climate monitoring. I am also very pleased that a crucial piece of onboard instrumentation, the microwave humidity sounder, was built and designed in the UK, demonstrating our leading role in this area of technology.”

You can watch a live stream of the launch of Metop-B at from 15:30 BST  this afternoon.

You can also read the transcript of the  twitterview between the Met Office and EUMETSAT that was held last week.

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