https://hdl.handle.net/21.12132/3.f9703e0df4d143ee 1.0 https://instrumentdb.out.ocp.fmi.fi/instrument/f9703e0d-f4d1-43ee-9288-1b5d8a9bf98b AWI CL51 (F3460002) Alfred Wegener Institute for Polar and Marine Research 032e6b942 Vaisala Oyj 05yhgzh28 Vaisala CL51 https://vocabulary.actris.nilu.no/actris_vocab/VaisalaCL51 lidar ceilometer https://vocabulary.actris.nilu.no/actris_vocab/lidarceilometer attenuated backscatter coefficient 2009-02-01 F3460002