Long-term activities of Geir Braathen

Co-chair of the Network for the Detection of Stratospheric Change

NDSC (The Network for the Detection of Stratospheric Change) is a set of high-quality remote-sounding research stations for observing and understanding the physical and chemical state of the stratosphere. Ozone and key ozone-related chemical compounds and parameters are targeted for measurement. The NDSC is a major component of the international upper atmosphere research effort and has been endorsed by national and international scientific agencies, including the International Ozone Commission, the United Nations Environment Programme (UNEP), and the World Meteorological Organization (WMO). Following five years of planning, instrument design and implementation, the NDSC began network operations in January 1991.

Geir Braathen has been a member of the NDSC Steering Committee since 1992, first as an ex-officio member and since 1995 as representative for the ozone and aersol sonde working group. In September 2004 he was elected co-chair of the NDSC Steering Committee.

More information on the NDSC can be found on the official NDSC web page:

You can also find information on the sonde working group web site at NILU: