https://hdl.handle.net/21.12132/3.1f7d5b3ddc55483b 1.0 https://instrumentdb.out.ocp.fmi.fi/instrument/1f7d5b3d-dc55-483b-8e13-debb13f42bc5 FMI HALO 32 Finnish Meteorological Institute 05hppb561 HALO Photonics StreamLine https://vocabulary.actris.nilu.no/actris_vocab/HALOPhotonicsStreamLine Doppler lidar https://vocabulary.actris.nilu.no/actris_vocab/Dopplerlidar Doppler velocity attenuated backscatter coefficient 2011-08-30 32