13 February 2001 Climatology of cloud distribution and backscattering coefficients of aerosols observed by the compact Mie-scattering lidar at Tsukuba, Japan
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Abstract
The climatology of tropospheric clouds and aerosol layer are studied with the results of observation by Compact Mie- scattering Lidar (CML) located at Tsukuba, Japan. The operation of CML is fully automated and the data have been collected constantly every 15 minutes regardless of weather conditions. Therefore the results of the observation by CML are devoted to statistical analyses of characteristics of aerosols and clouds. Range-corrected signal intensity from the zenith during June 1996 and August 2000 was analyzed to detect the cloud base and the top of aerosol layer. Multi-modal distribution of clouds were detected and the annual and year-to-year variation of them were confirmed. Though the distribution of the top of aerosol layer also indicated temporal variations, the characteristics were little complicated and general tendency was obscure. Backscattering coefficients in the lower troposphere were also inferred using Fernald's method when there was no cloud in the lower layer. The annual and diurnal variations were examined and characteristics of profiles of backscattering coefficients were dependent on the seasons.
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Atsushi Shimizu, Atsushi Shimizu, Nobuo Sugimoto, Nobuo Sugimoto, Ichiro Matsui, Ichiro Matsui, } "Climatology of cloud distribution and backscattering coefficients of aerosols observed by the compact Mie-scattering lidar at Tsukuba, Japan", Proc. SPIE 4153, Lidar Remote Sensing for Industry and Environment Monitoring, (13 February 2001); doi: 10.1117/12.417038; https://doi.org/10.1117/12.417038
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