At the AWIPEV Atmosphere Observatory in Ny-Alesund, atmospheric key parameters for climate change are monitored on a longterm basis. The measurements, including surface and upper-air meteorology, surface based radiation, as well as aerosols and trace gases from ground to the stratosphere, that are analyzed the Atmospheric Physics section. Furthermore, the observations contribute to several international scientific networks like e.g. the Baseline Surface Radiation Network (BSRN), the Network for the Detection of Atmospheric Composition Changes (NDACC) and the GCOS Reference Upper Air Network (GRUAN).