Vaisala Oyj Stock exchange release, 1 August 2007 at 10:00 Vaisala has won a contract with the Meteorological Service Canada (PWGSC) for the modernization of Canada's synoptic upper-air observation network. The contract term is ten years, and estimated value 27 million USD. The contract covers 35 sounding systems and corresponding services as well as radiosonde supply for ten years. It also includes options for further deliveries and support services. The deliveries start in October 2007. Meteorological Service Canada's current network is based on an older model of Vaisala sounding system and radiosondes, delivered in early 1990's. Synoptic observations include upper-air measurements of temperature, humidity, pressure, wind speed and direction. These measurements are taken simultaneously at fixed, scheduled times at a large number of locations around the world. The data obtained through these measurements is used for weather forecasts, warnings and research purposes. Further information: Erkki Järvinen, Director, Vaisala Measurement Systems gsm +358 40 5491 891 Jouni Lintunen, CFO gsm +358 40 579 0181 Distribution: Helsinki Stock Exchange Finnish news agency Major media