with green laser beam of the lidar instrument. (Photo: G. Tran / Alfred Wegener Institute) At the Atmosphere Observatory of the AWIPEV research base in Ny-Ålesund , Svalbard, we operate long-term observations [...] at Neumayer Station, Antarctica. (Photo: H. Schmithüsen / Alfred-Wegener-Institut) In Antarctica, atmospheric research is split into two observatories at the Neumayer Station. At the Meteorological [...] observations at AWIPEV-Base in Ny-Ålesund, Spitsbergen (Photo: Alfred-Wegener-Institut)