https://hdl.handle.net/21.12132/3.af519eeea2db4a90 1.0 https://instrumentdb.out.ocp.fmi.fi/instrument/af519eee-a2db-4a90-8cad-2a2fda5db201 FMI HALO 53 Finnish Meteorological Institute 05hppb561 HALO Photonics StreamLine Pro https://vocabulary.actris.nilu.no/actris_vocab/HALOPhotonicsStreamLinePro Doppler lidar https://vocabulary.actris.nilu.no/actris_vocab/Dopplerlidar Doppler velocity attenuated backscatter coefficient 2012-11-20 53