These data were collected by the Vaisala CL-31 ceilometer at Eatons Neck, Long Island during July 27-Sep.19, 2018, for the LISTOS field campaign measurement. They are stored in the NetCDF format by the BL-View sofware. If any questions or comments, please contact Yonghua Wu by email: yhwu@ccny.cuny.edu or phone: 212-650-8330.