Abstract
An intercomparison study of ground-based Mie-scattering lidar systems was held at Gosan, Korea during ABC-EAREX 2005 in order to ensure the correctness and accuracy of the lidar retrieval algorithms as well as the aerosol extinction profiles. We compared the vertical profiles of the range-corrected raw lidar signals as well as the aerosol extinction coefficients determined from different types of Mie-scattering lidar systems. Three different aerosol loading cases were selected; in these cases, the mean deviations of the range-corrected raw lidar signals were estimated to be 4.5%, 8.0%, and 7.3%. An intercomparison of the instruments by an identical data-handling procedure (Fernald approach) demonstrated that the aerosol extinction profiles for the three selected cases were in agreement within a bias difference of 0.0051 km-1. The mean deviation of the signals for the aerosol layer between 0.6 and 3.0 km was 3.0%. The systems were intercompared for two lidar inversion algorithms by using simultaneous lidar measurement data sets as input; these input data sets showed agreement with their aerosol extinction profiles within a bias difference of 0.0086 km-1 and a mean deviation of 11.6%.
