Open AccessAtmospheric extinction coefficient retrieval and validation for the single-band Mie-scattering Scheimpflug lidar technique
Author(s) -
Liang Mei,
Peng Guan,
Yang Yang,
Zheng Kong
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.00a628
Subject(s) - lidar , scheimpflug principle , remote sensing , mie scattering , environmental science , molar absorptivity , haze , aerosol , diffuse sky radiation , atmospheric optics , optics , atmosphere (unit) , scattering , ceilometer , atmospheric sciences , meteorology , light scattering , physics , geology , cornea
An 808 nm single-band Mie scattering Scheimpflug lidar system is developed in Dalian, Northern China, for real-time, large-area atmospheric aerosol/particle remote sensing. Atmospheric measurement has been performed in urban area during a typical haze weather condition, and time-range distribution of atmospheric backscattering signal is recorded from March 18th to 22nd, 2017, by employing the Scheimpflug lidar system. Atmospheric extinction coefficient is then retrieved according to the Klett-inversion algorithm, while the boundary value is obtained by the slope-method in the far end where the atmosphere is homogeneous in a subinterval region. The correlation between the extinction coefficients retrieved from the Scheimpflug lidar technique and the PM10/PM2.5 concentrations measured by a conventional air pollution monitoring station is also studied. The good agreement between the measurement results, i.e., a correlation coefficient of 0.85, successfully demonstrates the feasibility and great potential of the Scheimpflug lidar technique for atmospheric studies and applications.