Advances in Radio Science
Advances in Radio Science
ARS
Articles | Volume 15
Articles | Volume 15
https://doi.org/10.5194/ars-15-199-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/ars-15-199-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 15
21 Sep 2017
 | 21 Sep 2017

El Niño influence on the mesosphere/lower thermosphere circulation at midlatitudes as seen by a VHF meteor radar at Collm (51.3 ° N, 13 ° E)

Christoph Jacobi, Tatiana Ermakova, Daniel Mewes, and Alexander I. Pogoreltsev

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Cited articles

Calvo, N., Giorgetta, M. A., Garcia-Herrera, R., and Manzini, E.: Nonlinearity of the combined warm ENSO and QBO effects on the Northern Hemisphere polar vortex in MAECHAM5 simulations, J. Geophys. Res., 114, D13109, https://doi.org/10.1029/2008JD011445, 2009.
Camp, C. D. and Tung, K.-K.: Stratospheric polar warming by ENSO in winter: A statistical study, Geophys. Res. Lett., 34, L04809, https://doi.org/10.1029/2006GL028521, 2007. 
Fischer, A. M., Shindell, D. T., Winter, B., Bourqui, M. S., Faluvegi, G., Rozanov, E., Schraner, M., and Brönnimann, S.: Stratospheric winter climate response to ENSO in three chemistry-climate models, Geophys. Res. Lett., 35, L13819, https://doi.org/10.1029/2008GL034289, 2008.
Fleming, E. L., Chandra, S., Barnett, J. J., and Corney, M: Zonal mean temperature, pressure, zonal wind and geopotential height as function of latitude, Adv. Space. Res., 10, 11–59, 1990.
Fomichev, V. I. and Shved, G. M.: Parameterization of the radiative flux divergence in the 9.6 µm O3 band, J. Atmos. Terr. Phys., 47, 1037–1049, https://doi.org/10.1016/0021-9169(85)90021-2, 1985.
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There is continuous interest in coupling processes between the lower and middle atmosphere. Here we analyse midlatitude winds measured by radar at 82–97 km and find that especially in February they are positively correlated with El Niño. The signal is strong for the upper altitudes accessible to the radar, but weakens below. The observations can be qualitatively reproduced by numerical experiments using a mechanistic global circulation model.
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