Launching an ozonesonde at the NDSC station in Ny-Ålesund. Photo: Thomas Seiler.
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.

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