Seasonal and Interannual Variabilities of Vertical Eddy Diffusivity
Observed by the MU Radar
Manabu D. Yamanaka, Satoshi Kurosaki, Shoichiro Fukao, H. Hashiguchi,
Toshitaka Tsuda and Susumu Kato
Radio Atmospheric Science Center, Kyoto University,
Uji, Kyoto 611, Japan
Advances in Space Research ,
Vol. 14 , No.9, pp.(9)277-(9)280.
Paper No. C.2-S.2.10 presented at a symposium entitled
``The Middle Atmosphere:
Its Energetics, Chemistry and Dynamics and
Coupling to Regions Above and Below''
in the 29th COSPAR Plenary Meeting,
the World Space Congress,
Washington D.C., USA,
28 August-5 September 1992.
First draft: February, 1992;
Submitted: August 1993,
Accepted: September 1993
Published: September, 1994
ABSTRACT ,
CONTENTS ,
CORRECTIONS ,
FIGURES ,
REFERENCES ,
CITATIONS
Abstract
The vertical eddy diffusivity in the troposphere,
lower stratosphere and mesosphere has been observed by the MU radar
every month since January 1986.
Semiannual variations are dominantly detected in the mesosphere.
Annual variations with maxima in winter dominates in the lower stratosphere,
while annual maxima in the mesosphere exist in summer.
Quasi-biennial variabilities are also analyzed.
These observational results are interpreted
by the gravity-wave breaking theory.
Contents
- Introduction
- MU Radar Observations
- Seasonal Variability
- Interannual Variability
- Theoretical Interpretation
- Conclusions
Corrections and Additional Remarks
Fukao et al. (1992) was published as Fukao et al. (1994) cited below.
List of Figures
(no tables)
- Fig. 1.
Vertical profiles of the annual medians of vertical eddy diffusivity $K$
observed by the MU radar during 1986--91 in
(a) the mesosphere and (b) the upper troposphere and lower stratosphere,
compared with standard model profiles /9,10/.
- Fig. 2.
Vertical-temporal plot of the monthly medians of
vertical eddy diffusivity ($K$),
observed by the MU radar during 1986--91 in (a) the mesosphere and
(b) the strato-troposphere. &
- Fig. 3.
Same as Fig.\ 2 but for 12-month running-mean data. \\
References
(Updated after publication)
Allen et al., 1981: J. Geophys. Res., 86, 3617.
Blum and Schuchardt, 1978:
J. Atmos. Terr. Phys., 40, 1137.
Chanin and Hauchecorne, 1981:
J. Geophys. Res., 86, 9715.
Crutzen, 1974: Can.\ J.\ Chem., 52, 1569.
Fukao et al., 1994:
J. Geophys. Res., 99, 18973.
Gage et al., 1980: Radio Sci., 15, 407.
Garcia and Solomon, 1985: J. Geophys. Res., 90, 3850.
Hocking, 1983: J. Atmos. Terr. Phys., 45, 89.
Hocking, 1985: Radio Sci., 20, 1403.
Hocking, 1988: J. Geophys. Res., 93, 2475.
Lindzen, 1981: J. Geophys. Res. , 86 , 9707.
L\"{u}bken et al., 1987: J. Atmos. Terr. Phys., 49, 763.
Massie and Hunten, 1981: J. Geophys. Res., 86, 9859.
Matsuno, 1982: J. Meteor. Soc. Japan, 60, 215.
McIntyre, 1989: J. Geophys. Res., 94, 14617.
Ogawa and Shimazaki, 1975: J. Geophys. Res., 80, 3945.
Sato and Woodman, 1982: J. Atmos. Sci., 39, 2546.
Strobel, 1989: Pure Appl. Geophys., 130, 533.
Strobel et al., 1987: J. Geophys. Res., 92, 6691.
Thrane et al., 1985: J. Atmos. Terr. Phys., 47, 243.
Tsuda et al., 1990: Radio Sci., 26, 1005.
Tsuda et al., 1990: Geophys. Res. Lett., 17, 725.
VanZandt et al., 1981: 20th Conf.\ Radar Met., 129.
Wilson et al., 1991: J. Geophys. Res., 95, 5169.
Yamamoto et al., 1987: J. Geophys. Res., 92, 11993.
Yamanaka, 1992: Adv. Space Res. , 12 (10), 215.
Yamanaka and Fukao,
J. Geophys. Res., 97, still in preparation}{1992}
Citations by Subsequent Papers
(Under construction !!!!!)
List of Original Papers
by M. D. Yamanaka
Bibliography
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M. D. YAMANAKA homepage (English)
E-mail : yamanaka@kurasc.kyoto-u.ac.jp