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
... [Show full abstract] 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.