Phoenix AZ, January 12 - Vaisala is investing in the development of
an operational reference radiosonde. When complete, this instrument
will provide superior-quality climatological data on the upper parts
of the atmosphere, and shed light on the dynamics of climate change.

"The international scientific community has clearly expressed a need
for a high-precision instrument to enable long-term research on
climate change. As the global leader in environmental measurement, we
feel it is our duty to respond to this need. This development project
is a significant investment towards a better future - we do not
expect commercial gains. Rather, the project is part of Vaisala's
Corporate Responsibility program. We are committed to supporting the
research on climate change and want to provide the best possible
tools for scientists," Kjell Forsén, Vaisala's CEO explains.

Vaisala plans to carry out the project in close cooperation with the
international scientific community. Scientific evaluation has already
begun. After piloting, the instrument will be further developed
according to the experiences gained. The project requires long-term
work and commitment. Vaisala has a history of more than 70 years of
experience in the development of operational radiosondes.


Further information:
Kjell Forsén, CEO, Vaisala Oyj
Tel. +358 400 757 948, kjell.forsen@vaisala.com
(In Phoenix, Arizona at the time of publishing)

Marikka Nevamäki
Communications (Finland)
Tel. +358 40 700 4340, marikka.nevamaki@vaisala.com

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Radiosondes are meteorological devices that are used to measure
temperature, humidity, pressure, wind speed and direction in the
upper atmosphere. A balloon filled with hydrogen or helium gas
carries the radiosonde into the upper atmosphere. The instrument
transmits atmospheric data back to Earth throughout its flight.

Vaisala is a global leader in environmental and industrial
measurement. Building on more than 70 years of experience, Vaisala
contributes to a better quality of life by providing a comprehensive
range of innovative observation and measurement products and services
for meteorology, weather critical operations and controlled
environments. Headquartered in Finland, Vaisala employs over 1100
professionals worldwide and is listed on the Nordic Stock Exchange,
Helsinki. www.vaisala.com


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