Ceilometer observation Vessel: R/V MIRAI Cruise No.: MR18-04Leg2 Period: 13 Aug. 2018 - 06 Sep. 2018 Instruments: CL51 Software Level ID 102 , Vaisala, Finland Software: CL-VIEW Ver.2.0, Vaisala, Finland Location: Compass deck (18m from the sea level) Measure parameters; Cloud base height [m] Backscatter profile Cloud cover [oktas] and height [m] Sampling rate: 36 [seconds] Height offset: 0 [m] Data type; YYMMDD00.dat: RAW data (ASCII, about 18,451KB) Remarks; Window Cleaning 05:57UTC 21 Aug. 2018 01:21UTC 31 Aug. 2018