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Seasonal and Inter-annual Variability of the Quasi 2 Day Wave Over Collm (51.3° N, 13° E) as Obtained from Vhf Meteor Radar Measurements : Volume 12, Issue 14 (10/11/2014)

By Lilienthal, F.

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Book Id: WPLBN0004002742
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Seasonal and Inter-annual Variability of the Quasi 2 Day Wave Over Collm (51.3° N, 13° E) as Obtained from Vhf Meteor Radar Measurements : Volume 12, Issue 14 (10/11/2014)  
Author: Lilienthal, F.
Volume: Vol. 12, Issue 14
Language: English
Subject: Science, Advances, Radio
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Jacobi, C., & Lilienthal, F. (2014). Seasonal and Inter-annual Variability of the Quasi 2 Day Wave Over Collm (51.3° N, 13° E) as Obtained from Vhf Meteor Radar Measurements : Volume 12, Issue 14 (10/11/2014). Retrieved from

Description: Institute for Meteorology, University of Leipzig, Stephanstr. 3, 04103 Leipzig, Germany. The quasi 2 day wave (QTDW) over Collm (51° N, 13° E) has been studied between September 2004 and September 2013 using a VHF meteor radar. The 9 year mean amplitudes show a strong summer maximum with several irregular bursts and much weaker winter maxima. In summer, the meridional amplitude is slightly larger than the zonal one with about 15 m s−1 at 91 km height. Phase differences are slightly higher than 90°, which indicates a polarization that is nearly circular. On an average the QTDW is amplified after a maximum of zonal wind shear. This can be realized in the summer mesospheric jet where the zonal wind component has its minimum or, in other words, the easterly jet maximizes. Thus, instability is found as a likely forcing mechanism. QTDW amplitudes exhibit considerable inter-annual variability. In particular, there is a possible relation between the QTDW amplitude and the 11-year solar cycle in winter but not in summer.

Seasonal and inter-annual variability of the quasi 2 day wave over Collm (51.3° N, 13° E) as obtained from VHF meteor radar measurements

Babadshanov, P. B., Kalchenko, B. V., Kashcheyev, B. L., and Fedynsky, V. V.: Winds in the equatorial lower thermosphere, Proc. Acad. Sci. USSR, 208, 1334–1337, 1973 (in Russian).; Bristow, W. A., Yee, J.-H., Zhu, X., and Greenwald, R. A.: Simultaneous observations of the July 1996 2-day wave event using the Super Dual Auroral Radar Network and the High Resolution Doppler Imager, J. Geophys. Res., 104, 12715–12721, doi:10.1029/1999JA900030, 1999.; Charney, J. G. and Stern, M. E.: On the Stability of Internal Baroclinic Jets in a Rotating Atmosphere, J. Atmos. Sci., 19, 159–172, 2.0.CO;2>doi:10.1175/1520-0469(1962)019<0159:OTSOIB>2.0.CO;2, 1962.; Craig, R. L. and Elford, W. G.: Observations of the quasi 2day wave near 90 km altitude at Adelaide (35\degree S), J. Atmos. Terr. Phys., 43, 1051–1056, doi:10.1016/0021-9169(81)90019-2, 1981.; Ern, M., Preusse, P., Kalisch, S., Kaufmann, M., and Riese, M.: Role of gravity waves in the forcing of the quasi two-day waves in the mesosphere: An observational study, J. Geophys. Res., 118, 3467–3485, doi:10.1029/2012JD018208, 2013.; Gurubaran, S., Sridharan, S., Ramkumar, T. K., and Rajaram, R.: The mesospheric quasi-2-day wave over Tirunelveli (8.7° N), J. Atmos. Sol.-Terr. Phy., 63, 975–985, doi:10.1016/S1364-6826(01)00016-5, 2001.; Hocking, W., Fuller, B., and Vandepeer, B.: Real-time determination of meteor-related parameters utilizing modern digital technology, J. Atmos. Sol.-Terr. Phy., 63, 155–169, doi:10.1016/S1364-6826(00)00138-3, 2001.; Jacobi, C.: 6 year mean prevailing winds and tides measured by VHF meteor radar over Collm (51.3° N, 13.0° E), J. Atmos. Sol.-Terr. Phys., 78–79, 8–18, doi:10.1016/j.jastp.2011.04.010, 2012.; Jacobi, C., Schminder, R., and Kürschner, D.: The quasi 2-day wave as seen from Dl LF wind measurements over Central Europe (52° N, 15° E) at Collm, J. Atmos. Sol.-Terr. Phy., 59, 1277–1286, doi:10.1016/S1364-6826(96)00170-8, 1997.; Plumb, R. A.: Baroclinic Instability of the Summer Mesosphere: A Mechanism for the Quasi-Two-Day Wave?, J. Atmos. Sci., 40, 262–270, 1983.; Jacobi, C., Portnyagin, Y. I., Merzlyakov, E. G., Kashcheyev, B. L., Oleynikov, A., Kürschner, D., Mitchell, N. J., Middleton, H., Muller, H. G., and Comley, V. E.: Mesosphere/lower thermosphere wind measurements over Europe in summer 1998, J. Atmos. Sol.-Terr. Phy., 63, 1017–1031, doi:10.1016/S1364-6826(01)00012-8, 2001.; Jacobi, Ch., Hoffmann, P., Placke, M., and Stober, G.: Some anomalies of mesosphere/lower thermosphere parameters during the recent solar minimum, Adv. Radio Sci., 9, 343–348, doi:10.5194/ars-9-343-2011, 2011.; Malinga, S. B. and Ruohoniemi, J. M.: The quasi-two-day wave studied using the Northern Hemisphere SuperDARN HF radars, Ann. Geophys., 25, 1767–1778, doi:10.5194/angeo-25-1767-2007, 2007.; Merzlyakov, E. G. and Jacobi, Ch.: Quasi-two-day wave in an unstable summer atmosphere – some numerical results on excitation and propagation, Ann. Geophys., 22, 1917–1929, doi:10.5194/angeo-22-1917-2004, 2004.; Muller, H. G.: Long-period meteor wind oscillations, Phil. T. R. Soc. A, 271, 585–598, 1972.; Muller, H. G. and Ne


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