https://hdl.handle.net/21.12132/3.20e6ed2d17f6469a 1.0 https://instrumentdb.out.ocp.fmi.fi/instrument/20e6ed2d-17f6-469a-8ec0-93277c159e5e UL CS135 University of Leeds 024mrxd33 Campbell Scientific, Inc. Campbell Scientific CS135 https://vocabulary.actris.nilu.no/actris_vocab/CampbellScientificCS135 lidar ceilometer https://vocabulary.actris.nilu.no/actris_vocab/lidarceilometer attenuated backscatter coefficient 2016-06-11 2023-09-11 ncas-ceilometer-1 E1037