Long-period unstable gravity-waves and associated VHF radar echoes

Annales Geophysicae

Volumn 15, Issue 6, 1997, Pages 813-822

  Worthington, R M ^a   Thomas, L ^a  

^a ABERYSTWYTH UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0642342624     PISSN: 09927689     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00585-997-0813-8     Document Type: Article

References (55)

1. Andreassen, Ø., C. E. Wasberg, D. C. Fritts, and J. R. Isler, Gravity wave breaking in two and three dimensions. 1. Model description and comparison of two-dimensional evolutions, J. Geophys. Res., 99, 8095-8108, 1994.
2. Axford, D. N., An observation of gravity waves in shear flow in the lower stratosphere, Q. J. R. Meteorol. Soc., 96, 273-286, 1970.
3. Axford, D. N., On an observation of turbulent waves on the tropopause surface. Q. J. R. Meteorol. Soc., 99, 438-449, 1973.
4. Bader, M. J., G. S. Forbes, J. R. Grant, R. B. E. Lilley, and A. J. Waters, Images in weather forecasting. A practical guide for interpreting satellite and radar imagery, Cambridge University Press, Section 3.2.2.3, 1995.
5. Bannon, J. K., Shear frequencies in the upper troposphere and lower stratosphere over England, Meteorol. Mag., 79, 161-165, 1950
6. Brown, W. O. J., S. Fukao, M. Yamamoto, and G. J. Fraser, Spaced antenna scattering and orientation measurements of the upper troposphere on the MU radar. J. Geomag. Geoelect., 47, 1231-1235, 1995.
7. Brown, W. O. J., S. Fukao, M. Yamamoto, Multiple antenna FDI observations on the MU radar. Proc. 7th Workshop on Tech. and Sci. Aspects of MST Radar, Ed. B. Edwards. SCOSTEP, Boulder. Colorado, USA, 384-387, 1996.
8. Browning, K. A., Structure of the atmosphere in the vicinity of large-amplitude Kelvin-Helmholtz billows, Q. J. R. Meteorol. Soc., 97, 283-299, 1971.
9. Browning, K. A., and C. D. Watkins, Observations of clear air turbulence by high power radar. Nature. 227, 260-263, 1970.
10. Browning, K. A., C. D. Watkins, J. R. Starr, and A. McPherson, Simultaneous measurements of clear air turbulence at the tropopause by high-power radar and instrumented aircraft, Nature. 228, 1065-1067, 1970.
11. Browning, K. A., J. R. Starr, and A. J. Whyman, Measurements of air motion in regions of clear air turbulence using high-power Doppler radar, Nature, 239, 267-269, 1972.
12. Cho, J. Y. N., Inertio-gravity wave parameter estimation from cross-spectral analysis, J. Geophys. Res., 100, 18727-18737, 1995.
13. Clodman, J., Anisotropic high-level turbulence, Q. J. R. Meteorol. Soc., 83, 116-120 (see also 84, 180-182), 1957.
14. Clodman, J., Anisotropic high-level turbulence, Q. J. R. Meteorol. Soc., 83, 116-120 (see also 84, 180-182), 1957.
15. Cornish, C. R., and M. F. Larsen, Observations of low-frequency inertia-gravity waves in the lower stratosphere over Arecibo, J. Atmos. Sci., 46, 2428-2439, 1989.
16. Dalaudier, F., C. Sidi, M. Crochet and J. Vernin, Direct evidence of "sheets" in the atmospheric temperature field, J. Atmos. Sci., 51, 237-248, 1994.
17. Dutton, J. A., and H. A. Panofsky, Clear air turbulence: a mystery may be unfolding, Science, 167, 937-944, 1970.
18. 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.
19. Fritts, D. C., J. R. Isler, and Ø. Andreassen, Gravity-wave breaking in two and three dimensions. 2. Three dimensional evolution and instability structure, J. Geophys. Res., 99, 8109-8123, 1994.
20. Gage, K. S., Implications of tilting of stable layers on atmospheric measurements by clear-air Doppler radars, Preprints of 23rd Cunf. on Radar Meteorology and Conf. on Cloud Physics, Sept. 22-26, 1986, Snowmass, Colo. American Meteorological Society, Boston, Mass., 30-33, 1986.
21. Gage, K. S., D. A. Carter and W. L. Ecklund, The effect of gravity waves on specular echoes observed by the Poker Flat MST radar, Geophys. Res. Lett., 8, 599-602, 1981.
22. Hicks, J. J., Radar observations of a gravitational wave in clear air near the tropopause associated with CAT, J. Appl. Meteorol., 8, 627-633, 1969.
23. Hill, E. C. C., Breaking waves in cirrus cloud, Weather, 6, 286-287, 1951.
24. Hines, C. O., Tropopausal mountain waves over Arecibo: a case study, J. Atmos. Sci., 46, 476-488, 1989.
25. Hines, C. O., Comments on "Observations of low-frequency inertia-gravity waves in the lower stratosphere over Arecibo", J. Atmos. Sci., 52, 607-610, 1995.
26. Hooper, D., and L. Thomas, Aspect sensitivity of VHF scatterers in the troposphere and stratosphere from comparisons of powers in off-vertical beams, J. Atmos. Terr. Phys., 57, 655-663, 1995.
27. Kilburn, C., S. Fukao, and M. Yamamoto, Extended period frequency domain interferometry observations at stratospheric and tropospheric heights, Radio Sci., 30, 1099-1109, 1995.
28. Klostermeyer, J., and R. Rüster, Further study of a jet streamgenerated Kelvin-Helmholtz Instability, J. Geophys. Res., 86, 6631-6637, 1981.
29. Larsen, M. F., Reply with comments on "Modulated mountain waves", J. Atmos. Sci., 52, 611-612, 1995.
30. Larsen, M. F., and J. Röttger, VHF radar measurements of inbeam incidence angles and associated vertical-beam radial velocity corrections, J. Atmos. Ocean. Tech., 8, 477-490, 1991.
31. Luce, H., M. Crochet, F. Dalaudier, and C. Sidi, Interpretation of VHF ST radar vertical echoes from in situ temperature sheet observations, Radio Sci., 30, 1003-1025, 1995.
32. Ludlam, F. H., Characteristics of billow clouds and their relation to clear-air turbulence. Q. J. R. Meteorol. Soc., 93, 419-435, 1967.
33. O'Sullivan, D. and T. J. Dunkerton Generation of inertia-gravity waves in a simulated life cycle of baroclinic instability. J. Atmos. Sci., 52, 3695-3716, 1995.
34. Palmer, R. D., M. F. Larsen, R. F. Woodman, S. Fukao, M. Yamamoto, T. Tsuda, and S. Kato, VHF radar interferometry measurements of vertical velocity and the effect of tilted refractivity surfaces on standard Doppler measurements, Radio Sci., 26, 417-427, 1991.
35. Palmer, R. D., M. F. Larsen, E. L. Sheppard, S. Fukao, M. Yamamoto, T. Tsuda, and S. Kato, Poststatistic steering wind estimation in the troposphere and lower stratosphere, Radio Sci., 28, 261-271, 1993.
36. Pfister, L., W. Starr, R. Craig, M. Loewenstein, and M. Legg, Small-scale motions observed by aircraft in the tropical lower stratosphere: evidence for mixing and its relationship to large-scale flows. J. Atmos. Sci., 43, 3210-3225, 1986.
37. Reid, I. M., R. Rüster, and G. Schmidt VHF radar observations of cat's-eye-like structures at mesospheric heights, Nature, 327, 43-45, 1987.
38. Reiter, E. R., and A. Nania, Jet-stream structure and clear-air turbulence (CAT), J. Appl. Meteorol., 3, 247-259, 1964.
39. Roach, W. T., Some aircraft reports of high-level turbulence, Meteorol. Mag., 98, 65-78, 1969.
40. Röttger, J., and G. Schmidt, High-resolution VHF radar sounding of the troposphere and stratosphere, IEEE Trans. Geosci. Electr., GE17, 182-189, 1979.
41. Röttger, J., C. H. Liu, J. K. Chao, A. J. Chen, C. J. Pan, and I-J. Fu, Spatial interferometer measurements with the Chung-Li VHF radar, Radio Sci., 25, 503-515, 1990.
42. Sato, K., A statistical study of the structure, saturation and sources of inertio-gravity waves in the lower stratosphere observed with the MU radar, J. Atmos. Terr. Phys., 56, 755-774, 1994.
43. Sato, T., and R. F. Woodman, Fine altitude resolution observations of stratospheric turbulent layers by the Arecibo 430 MHz radar, J. Atmos. Sci., 39, 2546-2552, 1982.
44. Schilling, V. K., and U. Janssen, Particle dispersion due to dynamical instabilities in the lower stratosphere. Beitr. Atmos. Phys., 65, 259-273, 1992.
45. Thomas, L., I. T. Prichard, and I. Astin Radar observations of an inertia-gravity wave in the troposphere and lower stratosphere, Ann. Geophysicae., 10, 690-697, 1992.
46. Thompson, R. O. R. Y., Observation of inertial waves in the stratosphere. Q. J. R. Meteorol. Soc., 104, 691-698, 1978.
47. Tsuda, T., K. Hirose, S. Kato, and M. P. Sulzer, Some findings on correlation between the stratospheric echo power and the wind shear observed by the Arecibo UHF radar, Radio Sci., 20, 1503-1508, 1985.
48. Tsuda, T., W. E. Gordon, and H. Saito, Azimuth angle variations of specular reflection echoes in the lower atmosphere observed with the MU radar, J. Atmos. Terr. Phys., in press, 1997a.
49. Tsuda, T., T. E. VanZandt, and H. Saito Zenith-angle dependence of VHF specular reflection echoes in the lower atmosphere, J. Atmos. Terr. Phys., in press, 1997b.
50. Van Baelen, J. S., A. D. Richmond, T. Tsuda, S. K. Avery, S. Kato, S. Fukao, and M. Yamamoto, Radar interferometry technique and anisotropy of the echo power distribution: first results, Radio Sci., 26, 1315-1326, 1991.
51. Worthington, R. M., and L. Thomas, Radar measurements of critical-layer absorption in mountain waves. Q. J. R. Meteorol. Soc., 122, 1263-1282, 1996a.
52. Worthington, R. M., and L. Thomas, The measurement of gravity-wave momentum flux in the lower atmosphere using VHF radar. Radio Sci., 31, 1501-1517, 1996b.
53. Yamanaka, M. D., S. Ogino, S. Kondo, T. Shimomai, S. Fukao, Y. Shibagaki, Y. Maekawa, and I. Takayabu, Inertio-gravity waves and subtropical multiple tropopauses: vertical wavenumber spectra of wind and temperature observed by the MU radar, radiosondes and operational rawinsonde network, J. Atmos. Terr. Phys., 58, 785-805, 1996.
54. Yoe, J. G., P. Czechowsky, R. Rüster, and G. Schmidt, Spatial variability of the aspect sensitivity of VHF radar echoes in the troposphere and lower stratosphere during jet stream passages. Ann. Geophysicae, 12, 733-745, 1994.
55. Young, J. R. C., Breaking gravity waves on a jet stream over the North Pacific, Weather, 26, 306-307, 1971.