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Volume 51 Supplement 7-8

Special Issue: Dynamics and Structure of the Mesopause Region (DYSMER)

Simultaneous measurements of dynamical structure in the mesopause region with lidars and MU radar


In order to clarify the horizontal structure of the wavelike oscillation frequently observed in the night time sodium density profile with a small Gaussian half-width in the middle of the night and a broad distribution at dusk, simultaneous observations with two lidars at Shigaraki (34.9°N, 136.1°E) and Hachioji (35.6°N, 139.4°E) and the MU radar at Shigaraki has been carried out. In the campaign of 35 nights, simultaneous observation was successful in four nights. On December 27–28, 1995, a large scale wave motion was observed by two lidars and the MU radar with meteor observation mode. Phase velocities were almost the same at the two sites and there were only slight differences in phase between the two sites. The wave motion was inconsistent with the component of the tidal wave and similar with the results of hodograph analyses. It is possible that the wave observed by lidars on December 27–28, 1995 was a gravity wave. The results of analyses suggest the possibility of gravity waves which were observed at fixed local time.


  1. Bills, R. E., C. S. Gardner, and C. Y. She, Narrowband lidar technique for sodium temperature and Doppler wind observations of the upper atmosphere, Opt. Eng., 30, 13–21, 1991.

    Article  Google Scholar 

  2. Chiu, Y. T. and B. K. Ching, The response of atmospheric and lower ionospheric layer structures togravity waves, Geophys. Res. Lett., 5, 539–542, 1978.

    Article  Google Scholar 

  3. Collins, R. L., A. Nomura, and C. S. Gardner, Gravity waves in the upper mesosphere over Antarctica: Lidar observations at the south pole and Syowa, J. Geophys. Res., 99, 5475–5485, 1994.

    Article  Google Scholar 

  4. Fritts, D. C. and P. K. Rastogi, Convective and dynamical instabilities due to gravity wave motions in the lower and middle atmosphere: Theory and observations, Radio Sci., 20, 1247–1277, 1985.

    Article  Google Scholar 

  5. Gardner, C. S. and J. D. Shelton, Density response of neutral atmospheric layers to gravity wave perturbations, J. Geophys. Res., 90, 1745–1754, 1985.

    Article  Google Scholar 

  6. Gardner, C. S. and D. G. Voelz, Lidar studies of the nighttime sodium layer over Urbana, Illinois 2. gravity waves, J. Geophys. Res., 92, 4673–4694, 1987.

    Article  Google Scholar 

  7. Gossard, E. E. and W. H. Hooke, Waves in the atmosphere, in Developments in Atmospheric Science, vol. 2, 456 pp., Elsevier Sci., New York, 1975.

    Google Scholar 

  8. Hines, C. O., Internal atmospheric gravity waves at ionospheric heights, Can. J. Phys., 38, 1441–1481, 1960.

    Article  Google Scholar 

  9. Hostetler, C. A. and C. S. Gardner, Observations of horizontal and vertical wave number spectra of gravity wave motions in the stratosphere and mesosphere over the mid-Pacific, J. Geophys. Res., 99, 1283–1302, 1994.

    Article  Google Scholar 

  10. Kwon, K. H., C. S. Gardner, S. K. Avery, and J. P. Avery, Correlative radar and airborne sodium lidar observations of the vertical and horizontal structure of gravity waves near the mesopause, J. Geophys. Res., 95, 13737–13748, 1990.

    Article  Google Scholar 

  11. Nakamura, T., T. Tsuda, M. Yamamoto, S. Fukao, and S. Kato, Characteristics of gravity waves in the mesosphere observed with the middle and upper atmosphere radar 1. Momentum flux, J. Geophys. Res., 98, 8899–8910, 1993.

    Article  Google Scholar 

  12. Nakamura, T., T. Tsuda, S. Fukao, H. Takahashi, P. P. Batista, R. A. Buriti, M. Tsutsumi, M. Ishi, K. Igarashi, H. Fukunishi, Y. Yamada, A. Nomura, T. D. Kawahara, K. Kobayashi, C. Nagasawa, M. Abo, and M. J. Taylor, Studies of the MLT region using the MU radar and simultaneous observations with OH spectrometer and other optical instruments, Adv. Space Res., 19, 643–652, 1997.

    Article  Google Scholar 

  13. Namboothiri, S. P., T. Tsuda, M. Tsutsumi, T. Nakamura, C. Nagasawa, and M. Abo, Simultaneous observations of mesospheric gravity waves with the MU radar and a sodium lidar, J. Geophys. Res., 101, 4057–4062, 1996.

    Article  Google Scholar 

  14. She, C. Y., J. R. Yu, J. W. Huang, C. Nagasawa, and C. S. Gardner, Na temperature lidar measurements of gravity wave perturbations of wind, density and temperature in the mesopause region, Geophys. Res. Lett., 18, 1329–1331, 1991.

    Article  Google Scholar 

  15. Taylor, M. J., D. C. Fritts, and J. R. Isler, Determination of horizontal and vertical structure of an unusual pattern of short period gravity waves imaged during ALOHA-93, Geophys. Res. Lett., 22, 2837–2840, 1995.

    Article  Google Scholar 

  16. Tsuda, T., S. Kato, T. Yokoi, T. Inoue, M. Yamamoto, T. E. VanZandt, S. Fukao, and T. Sato, Gravity waves in the mesosphere observed with the middle and upper atmosphere radar, Radio Sci., 26, 1005–1018, 1990.

    Article  Google Scholar 

  17. Tsutsumi, M., T. Tsuda, T. Nakamura, and S. Fukao, Temperature fluctuations near the mesopause inferred from meteor observations with the middle and upper atmosphere radar, Radio Sci., 29, 599–610, 1994.

    Article  Google Scholar 

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Correspondence to K. Kobayashi.

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Kobayashi, K., Kitahara, T., Kawahara, T.D. et al. Simultaneous measurements of dynamical structure in the mesopause region with lidars and MU radar. Earth Planet Sp 51, 731–739 (1999).

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  • Lidar
  • Gravity Wave
  • Tidal Wave
  • Vertical Wavelength
  • Mesopause Region