METimage is to be used on the next generation of low-flying weather satellites, the Post-EUMETSAT Polar System (EPS). It will be far superior to the current system in terms of resolution and image width as it can photograph a strip nearly 3000 kilometers wide with a resolution of 500 meters and better. The instrument currently in orbit offers a resolution of 1100 meters. The marked improvement in the quality of the images will provide for six-day weather forecasts in advance, significantly longer than at present.
From the original black-white photo to multi-spectral scanner images
Satellite weather monitoring started with basic black-white photos of cloud formations which were then interpreted by meteorologists. Over the years multi-spectral methods were developed, delivering highly detailed information such as for example temperature profiles or characteristics of clouds. Today, weather satellites not only supply images but a whole range of information, delivering the input for computer-aided weather forecasting. In addition to radar measurements, the key role today is played by optical measurement equipment for weather monitoring.
The EUMETSAT Polar System (EPS) is the current European contribution towards the global system of meteorological weather satellites circulating the poles. Last year the decision was taken to begin development of the METimage instrument in Germany for the development of the successor system, known as Post EPS for short.