an deserts.
over East
icles were
dain Jaran
elt of high
s from the
results of
s that are
| particles.
‘East Asia
| in Figs.4
(OSA
channel is
| the Kosa
/P11), the
"incident
ila, where
en 1974).
the shape
> the size
r -4 was
¢ of Kosa
Japan the
its value
the size
the value
)) particle
ution.
3 channel
nel (Ps)sss
and 140
r2. As a
n the case
greement
zes in the
in 1981
low sand
> radius 2
POLDER
of yellow
/PODER
ization at
the 865
| 110 and
1e size of
| was also
| that the
high density Kosa cloud moves from the main land of
China to the western part of Japan, and that almost all part
of East Asia is covered with the hazy Kosa layer during
Kosa events.
REFERENCES
Kai K. et al. 1988, Lidar Observation and Numerical
Simulation of a Kosa (Asian Dust) over Tsukuba, Japan
during the Spring of 1986, J. Meteor. Soc. Japan, Vol.66,
pp.457-472.
Arao, K and Y. Ishizaka, 1986, Volume and Mass of
Yellow Sand Dust in the Air over Japan as Estimated from
Atmospheric Turbidity, J. Meteor. Soc. Japan, Vol.64,
pp.79-93.
POLDER Level 1 Product Data Format and User Manual,
1997, CNES, France.
Report of Environmental Atmospheric survey, 1995,
Ishikawa, Japan.
Hansen, J. E. and L.D. Travis, 1974, Light Scattering in
Planetary Atmosphere, Space Sci. Rev., 16, pp.527-610.
Tanaka, M. et al, 1983, Refractive Index and Size
Distribution of Aerosols as Estimated from Light Scattering
Measurements, J. Climate Appl. Meteor., 22, pp.1253-
1261.
Fig.] POLDER image taken on April 12, 1997
80
©
[s 0]
3
£50
.9
540
6
'o30
a
20
10
Ge
0 100 110 120 130 140 150 160 170 180
Scattering Angle(^ )
Fig.3 Profiles of polarization (%) versus the scattering angle on the principal plane
of POLDER data taken on Apri! 12, 1997
Intemational Archives of Photogrammetry and Remote Sensing. Vol. XXXII, Part 7, Budapest, 1998 441