Department of Electronic and Electrical Engineering
 
Professor Nick Mitchell of the Department of Electronic and Electrical Engineering (EEE)

Contact details

Room 2 East 4.18

Tel: +44 (0) 1225 386062

Email: N.J.Mitchell@bath.ac.uk

 

Professor Nicholas Mitchell

BSc, PhD

Profile

Prof Mitchell studied for a BSc and a PhD at The University of Sheffield. He worked at The University of Wales before joining The University of Bath in 2002.

He is a professor in Electronic and Electrical Engineering and director of the Centre for Space, Atmospheric and Oceanic Science.  

Research

Prof Mitchell’s research addresses the dynamics and coupling of the Earth’s Middle Atmosphere. A particular interest is investigating the role of gravity waves, tides and planetary waves in coupling the stratosphere and mesosphere to the thermosphere above and to the troposphere below.

Prof Mitchell’s research group carries out experimental work using VHF meteor radars operated at Esrange in the Arctic, Bear Lake in the US, on Ascension Island in the equatorial Atlantic and at Rothera in the Antarctic.

These measurements are complemented by satellite observations (particularly from NASA’s EOS Aura satellite), modelling studies and measurements from other ground-based instruments such as the EISCAT radars and imagers.

There is strong collaboration with The British Antarctic Survey and leading international groups in Europe, the US, Australia and Japan.

Publications

Book Sections

Singer, W., Latteck, R., Millan, L. F., Mitchell, N. J. and Fiedler, J., 2008. Radar backscatter from underdense meteors and diffusion rates. In: Trigo-Rodriguez, J. M., Rietmeijer, F. J. M., Llorca, J. and Janches, D., eds. Advances in Meteoroid and Meteor Science. New York, U. S. A.: Springer, pp. 403-409.

Latteck, R., Singer, W., Mitchell, N. J., Weiss, J. and von Zahn, U., 2004. High resolution radar observations of the 1999, 2000 and 2001 Leonid meteor storms over middle Europe and Northern Scandinavia. In: Impact of Minor Bodies of Our Solar System on Planets and Their Middle and Upper Atmosphere.Vol. 33. , pp. 1496-1500. (Advances in Space Research)

Articles

Smith, A. K., Garcia, R., Moss, A. C. and Mitchell, N. J., 2017. The semiannual oscillation of the tropical zonal wind in the middle atmosphere derived from satellite geopotential height retrievals. Journal of the Atmospheric Sciences, 74 (8), pp. 2413-2425.

Wright, C. J., Hindley, N. P., Hoffmann, L., Alexander, M. J. and Mitchell, N. J., 2017. Exploring gravity wave characteristics in 3-D using a novel S-transform technique: AIRS/Aqua measurements over the Southern Andes and Drake Passage. Atmospheric Chemistry and Physics, 17 (13), pp. 8553-8575.

Lieberman, R. S., Riggin, D. M., Nguyen, V., Palo, S. E., Siskind, D. E., Mitchell, N. J., Stober, G., Wilhelm, S. and Livesey, N. J., 2017. Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system. Journal of Geophysical Research : Atmospheres, 122 (8), pp. 4135-4149.

McCormack, J., Hoppel, K., Kuhl, D., de Wit, R., Stober, G., Espy, P., Baker, N., Brown, P., Fritts, D., Jacobi, C., Janches, D., Mitchell, N., Ruston, B., Swadley, S., Viner, K., Whitcomb, T. and Hibbins, R., 2017. Comparison of mesospheric winds from a high-altitude meteorological analysis system and meteor radar observations during the boreal winters of 2009–2010 and 2012–2013. Journal of Atmospheric and Solar-Terrestrial Physics, 154, pp. 132-166.

White, I. P., Lu, H. and Mitchell, N. J., 2016. Seasonal evolution of the QBO-induced wave forcing and circulation anomalies in the northern winter stratosphere. Journal of Geophysical Research : Atmospheres, 121 (18), 10,411-10,431.

Moss, A. C., Wright, C. J. and Mitchell, N. J., 2016. Does the Madden-Julian Oscillation modulate stratospheric gravity waves? Geophysical Research Letters

Wright, C., Hindley, N., Moss, A. and Mitchell, N., 2016. Multi-instrument gravity-wave measurements over Tierra del Fuego and the Drake Passage – Part 1:potential energies and vertical wavelengths from AIRS, COSMIC, HIRDLS, MLS-Aura, SAAMER, SABER and radiosondes. Atmospheric Measurement Techniques, 9 (3), pp. 877-908.

Moss, A., Wright, C., Davis, R. and Mitchell, N., 2016. Gravity-wave momentum fluxes in the mesosphere over Ascension Island (8° S, 14° W) and the anomalous zonal winds of the semi-annual oscillation in 2002. Annales Geophysicae, 34 (2), pp. 323-330.

Wright, C. J., Hindley, N. P. and Mitchell, N. J., 2016. Combining AIRS and MLS observations for three-dimensional gravity wave measurement. Geophysical Research Letters, 43 (2), pp. 884-893.

Yuan, T., Heale, C. J., Snively, J. B., Cai, X., Pautet, P. D., Fish, C., Zhao, Y., Taylor, M. J., Pendleton, W. R., Wickwar, V. and Mitchell, N. J., 2016. Evidence of dispersion and refraction of a spectrally broad gravity wave packet in the mesopause region observed by the Na lidar and Mesospheric Temperature Mapper above Logan, Utah. Journal of Geophysical Research : Atmospheres, 121 (2), pp. 579-594.

Hindley, N. P., Smith, N. D., Wright, C. J., Rees, D. A. S. and Mitchell, N. J., 2016. A two-dimensional Stockwell transform for gravity wave analysis of AIRS measurements. Atmospheric Measurement Techniques

White, I. P., Lu, H., Mitchell, N. J. and Phillips, T., 2015. Dynamical response to the QBO in the northern winter stratosphere:signatures in wave forcing and eddy fluxes of potential vorticity. Journal of the Atmospheric Sciences, 72 (12), pp. 4487-4507.

Iimura, H., Fritts, D. C., Janches, D., Singer, W. and Mitchell, N. J., 2015. Interhemispheric structure and variability of the 5-day planetary wave from meteor radar wind measurements. Annales Geophysicae, 33 (11), pp. 1349-1359.

Hindley, N. P., Wright, C. J., Smith, N. D. and Mitchell, N. J., 2015. The southern stratospheric gravity wave hot spot: individual waves and their momentum fluxes measured by COSMIC GPS-RO. Atmospheric Chemistry and Physics, 15 (14), pp. 7797-7818.

Liu, G., England, S. L., Immel, T. J., Frey, H. U., Mannucci, A. J. and Mitchell, N. J., 2015. A comprehensive survey of atmospheric quasi 3 day planetary-scale waves and their impacts on the day-to-day variations of the equatorial ionosphere. Journal of Geophysical Research: Space Physics, 120 (4), pp. 2979-2992.

Fritts, D. C., Pautet, P. D., Bossert, K., Taylor, M. J., Williams, B. P., Iimura, H., Yuan, T., Mitchell, N. J. and Stober, G., 2014. Quantifying gravity wave momentum fluxes with Mesosphere Temperature Mappers and correlative instrumentation. Journal of Geophysical Research : Atmospheres, 119 (24), pp. 13583-13603.

De Wit, R. J., Hibbins, R. E., Espy, P. J. and Mitchell, N. J., 2013. Interannual variability of mesopause zonal winds over Ascension Island:coupling to the stratospheric QBO. Journal of Geophysical Research : Atmospheres, 118 (21), pp. 12052-12060.

Mthembu, S.H., Sivakumar, V., Mitchell, N.J. and Malinga, S.B., 2013. Studies on planetary waves and tide interaction in the mesosphere/lower thermosphere region using meteor RADAR data from Rothera (68°S, 68°W), Antarctica. Journal of Atmospheric and Solar-Terrestrial Physics, 102, pp. 59-70.

Yuan, T., Fish, C., Sojka, J., Rice, D., Taylor, M.J. and Mitchell, N.J., 2013. Coordinated investigation of summer time mid-latitude descending e layer (E) perturbations using Na lidar, ionosonde, and meteor wind radar observations over Logan, Utah (41.7°N, 111.8°W). Journal of Geophysical Research, 118 (4), pp. 1734-1746.

Day, K. A. and Mitchell, N. J., 2013. Mean winds in the MLT, the SQBO and MSAO over Ascension Island (8° S, 14° W). Atmospheric Chemistry and Physics, 13 (18), pp. 9515-9523.

Davis, R. N., Du, J., Smith, A. K., Ward, W. E. and Mitchell, N. J., 2013. The diurnal and semidiurnal tides over Ascension Island (° S, 14° W) and their interaction with the stratospheric quasi-biennial oscillation:Studies with meteor radar, eCMAM and WACCM. Atmospheric Chemistry and Physics, 13 (18), pp. 9543-9564.

Fritts, D.C., Janches, D., Hocking, W.K., Mitchell, N.J. and Taylor, M.J., 2012. Assessment of gravity wave momentum flux measurement capabilities by meteor radars having different transmitter power and antenna configurations. Journal of Geophysical Research: Atmospheres, 117 (D10), D10108.

Day, K. A., Taylor, M. J. and Mitchell, N. J., 2012. Mean winds, temperatures and the 16- and 5-day planetary waves in the mesosphere and lower thermosphere over Bear Lake Observatory (42° N, 111° W). Atmospheric Chemistry and Physics, 12 (3), pp. 1571-1585.

Davis, R. N., Chen, Y.-W., Miyahara, S. and Mitchell, N. J., 2012. The climatology, propagation and excitation of ultra-fast Kelvin waves as observed by meteor radar, Aura MLS, TRMM and in the Kyushu-GCM. Atmospheric Chemistry & Physics, 12 (4), pp. 1865-1879.

Nielsen, K., Nedoluha, G. E., Chandran, A., Chang, L. C., Barker-Tvedtnes, J., Taylor, M. J., Mitchell, N. J., Lambert, A., Schwartz, M. J. and Russell, J. M., 2011. On the origin of mid-latitude mesospheric clouds: The July 2009 cloud outbreak. Journal of Atmospheric and Solar-Terrestrial Physics, 73 (14-15), pp. 2118-2124.

Tunbridge, V. M., Sandford, D. J. and Mitchell, N. J., 2011. Zonal wave numbers of the summertime 2 day planetary wave observed in the mesosphere by EOS Aura Microwave Limb Sounder. Journal of Geophysical Research, 116 (D11), D11103.

Cho, Y. M., Shepherd, G. G., Shepherd, M. G., Hocking, W. K., Mitchell, N. J. and Won, Y. I., 2011. A study of temperature and meridional wind relationships at high northern latitudes. Journal of Atmospheric and Solar-Terrestrial Physics, 73 (9), pp. 936-943.

Day, K. A., Hibbins, R. E. and Mitchell, N. J., 2011. Aura MLS observations of the westward-propagating s=1, 16-day planetary wave in the stratosphere, mesosphere and lower thermosphere. Atmospheric Chemistry & Physics, 11 (9), pp. 4149-4161.

Davis, R. N., Chen, Y. W., Miyahara, S. and Mitchell, N. J., 2011. The climatology, propagation and excitation of ultra-fast Kelvin waves as observed by meteor radar, Aura MLS, TRMM and in the Kyushu-GCM. Atmospheric Chemistry and Physics Discussions, 11 (10), pp. 29479-29525.

Fritts, D. C., Janches, D., Iimura, H., Hocking, W. K., Mitchell, N. J., Stockwell, R. G., Fuller, B., Vandepeer, B., Hormaechea, J., Brunini, C. and Levato, H., 2010. Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides. Journal of Geophysical Research, 115, D18112.

Beldon, C. L. and Mitchell, N. J., 2010. Gravity wave-tidal interactions in the mesosphere and lower thermosphere over Rothera, Antarctica (68 degrees S, 68 degrees W). Journal of Geophysical Research, 115, D18101.

Smirnova, M., Belova, E., Kirkwood, S. and Mitchell, N., 2010. Polar mesosphere summer echoes with ESRAD, Kiruna, Sweden: variations and trends over 1997-2008. Journal of Atmospheric and Solar-Terrestrial Physics, 72 (5-6), pp. 435-447.

Day, K. A. and Mitchell, N. J., 2010. The 5-day wave in the Arctic and Antarctic mesosphere and lower thermosphere. Journal of Geophysical Research, 115, D01109.

Sandford, D. J., Beldon, C. L., Hibbins, R. E. and Mitchell, N. J., 2010. Dynamics of the Antarctic and Arctic mesosphere and lower thermosphere - Part 1: Mean winds. Atmospheric Chemistry & Physics, 10 (21), pp. 10273-10289.

Day, K. A. and Mitchell, N. J., 2010. The 16-day wave in the Arctic and Antarctic mesosphere and lower thermosphere. Atmospheric Chemistry & Physics, 10 (3), pp. 1461-1472.

Tunbridge, V. M. and Mitchell, N. J., 2009. The two-day wave in the Antarctic and Arctic mesosphere and lower thermosphere. Atmospheric Chemistry & Physics, 9 (17), pp. 6377-6388.

Beldon, C. L. and Mitchell, N. J., 2009. Gravity waves in the mesopause region observed by meteor radar, 2: Climatologies of gravity waves in the Antarctic and Arctic. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (8-9), pp. 875-884.

Mitchell, N. J. and Beldon, C. L., 2009. Gravity waves in the mesopause region observed by meteor radar: 1. A simple measurement technique. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (8-9), pp. 866-874.

Rao, R. K., Gurubaran, S., Sathishkumar, S., Sridharan, S., Nakamura, T., Tsuda, T., Takahashi, H., Batista, P. P., Clemesha, B. R., Buriti, R. A., Pancheva, D. V. and Mitchell, N. J., 2009. Longitudinal variability in intraseasonal oscillation in the tropical mesosphere and lower thermosphere region. Journal of Geophysical Research, 114 (D19110).

Pancheva, D., Mukhtarov, R., Andonov, B., Mitchell, N. J. and Forbes, J. M., 2009. Planetary waves observed by TIMED/SABER in coupling the stratosphere-mesosphere-lower thermosphere during the winter of 2003/2004: Part 1-Comparison with the UKMO temperature results. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (1), pp. 61-74.

Pancheva, D., Mukhtarov, R., Andonov, B., Mitchell, N. J. and Forbes, J. M., 2009. Planetary waves observed by TIMED/SABER in coupling the stratosphere-mesosphere-lower thermosphere during the winter of 2003/2004: Part 2-Altitude and latitude planetary wave structure. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (1), pp. 75-87.

Younger, P. T., Astin, I., Sandford, D. J. and Mitchell, N. J., 2009. The sporadic radiant and distribution of meteors in the atmosphere as observed by VHF radar at Arctic, Antarctic and equatorial latitudes. Annales Geophysicae, 27 (7), pp. 2831-2841.

Kirkwood, S., Nilsson, H., Morris, R. J., Klekociuk, A. R., Holdsworth, D. A. and Mitchell, N. J., 2008. A new height for the summer mesopause: Antarctica, December 2007. Geophysical Research Letters, 35 (23), L23810.

Pancheva, D., Mukhtarov, P., Mitchell, N. J., Merzlyakov, E., Smith, A. K., Andonov, B., Singer, W., Hocking, W., Meek, C., Manson, A. and Murayama, Y., 2008. Planetary waves in coupling the stratosphere and mesosphere during the major stratospheric warming in 2003/2004. Journal of Geophysical Research, 113 (D12), D12105.

Belova, A., Kirkwood, S., Murtagh, D., Mitchell, N. J., Singer, W. and Hocking, W., 2008. Five-day planetary waves in the middle atmosphere from Odin satellite data and ground-based instruments in Northern Hemisphere summer 2003, 2004, 2005 and 2007. Annales Geophysicae, 26 (11), pp. 3557-3570.

Pancheva, D., Mukhtarov, P., Mitchell, N. J., Andonov, B., Merzlyakov, E., Singer, W., Murayama, Y., Kawamura, S., Xiong, J., Wan, W., Hocking, W., Fritts, D., Riggin, D., Meek, C. and Manson, A., 2008. Latitudinal wave coupling of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004. Annales Geophysicae, 26 (3), pp. 467-483.

Ballinger, A. P., Chilson, P. B., Palmer, R. D. and Mitchell, N., 2008. On the validity of the ambipolar diffusion assumption in the polar mesopause region. Annales Geophysicae, 26 (11), pp. 3439-3443.

Pancheva, D., Mukhatrov, P., Mitchell, N., Fritts, D., Riggin, D., Takahashi, H., Batista, P., Clemesha, B., Gurubaran, S. and Ramkumar, G., 2008. Planetary Wave Coupling (5-6-Day Waves) in the Low Latitude Atmosphere-Ionosphere System. Journal of Atmospheric and Solar-Terrestrial Physics, 70 (1), pp. 101-122.

Singer, W., Latteck, R., Millan, L. F., Mitchell, N. J. and Fiedler, J., 2008. Radar backscatter from underdense meteors and diffusion rates. Earth Moon and Planets, 102 (1-4), pp. 403-409.

Sandford, D. J., Schwartz, M. J. and Mitchell, N. J., 2008. The wintertime two-day wave in the polar stratosphere, mesosphere and lower thermosphere. Atmospheric Chemistry & Physics, 8 (3), pp. 749-755.

Smith, A. K., Pancheva, D. V., Mitchell, N. J., Marsh, D. R., Russell, J. M. and Mlynczak, M. G., 2007. A link between variability of the semidiurnal tide and planetary waves in the opposite hemisphere. Geophysical Research Letters, 34 (7).

Mukhtarov, P., Andonov, B., Mitchell, N., Merzlyakov, E., Singer, W., Hocking, W., Meek, C., Manson, A. and Murayama, Y., 2007. Large-Scale Thermodynamics of the Stratosphere and Mesosphere during the Major Stratospheric Warming in 2003/2004. Journal of Atmospheric and Solar-Terrestrial Physics, 69 (17-18), pp. 2338-2354.

Sandford, D. J. and Mitchell, N. J., 2007. Lunar tides in the mesosphere over Ascension Island (8(circle)S, 14.4(circle) W). Annales Geophysicae, 25 (1), pp. 9-12.

Chshyolkova, T., Manson, A. H., Meek, C. E., Aso, T., Avery, S. K., Hall, C. M., Hocking, W., Igarashi, K., Jacobi, C., Makarov, N., Mitchell, N., Murayama, Y., Singer, W., Thorsen, D. and Tsutsumi, M., 2007. Polar vortex evolution during Northern Hemispheric winter 2004/05. Annales Geophysicae, 25 (6), pp. 1279-1298.

Sandford, D. J., Mitchell, N. J., Vincent, R. A. and Murphy, D. J., 2007. The lunar tides in the Antarctic mesosphere and lower thermosphere. Journal of Atmospheric and Solar-Terrestrial Physics, 69 (17-18), pp. 2219-2237.

Beldon, C. L., Muller, H. G. and Mitchell, N. J., 2006. The 8-hour tide in the mesosphere and lower thermosphere over the UK, 1988-2004. Journal of Atmospheric and Solar-Terrestrial Physics, 68 (6), pp. 655-668.

Sandford, D. J., Muller, H. G. and Mitchell, N. J., 2006. Observations of lunar tides in the mesosphere and lower thermosphere at Arctic and middle latitudes. Atmospheric Chemistry & Physics, 6, pp. 4117-4127.

Nielsen, K., Taylor, M. J., Pautet, P. D., Fritts, D. C., Mitchell, N., Beldon, C., Williams, B. P., Singer, W., Schmidlin, F. J. and Goldberg, R. A., 2006. Propagation of short-period gravity waves at high-latitudes during the MaCWAVE winter campaign. Annales Geophysicae, 24 (4), pp. 1227-1243.

Pancheva, D. V., Mukhtarov, P. J., Shepherd, M. G., Mitchell, N. J., Fritts, D. C., Riggin, D. M., Franke, S. J., Batista, P. P., Abdu, M. A., Batista, I. S., Clemesha, B. R. and Kikuchi, T., 2006. Two-day wave coupling of the low-latitude atmosphere-ionosphere system. Journal of Geophysical Research, 111 (A7).

Younger, P. T. and Mitchell, N. J., 2006. Waves with period near 3 days in the equatorial mesosphere and lower thermosphere over Ascension Island. Journal of Atmospheric and Solar-Terrestrial Physics, 68 (3-5), pp. 369-378.

Wu, Q., Mitchell, N. J., Killeen, T. L., Solomon, S. C. and Younger, P. T., 2005. A high-latitude 8-hour wave in the mesosphere and lower thermosphere. Journal of Geophysical Research, 110 (A9).

Pancheva, D., Mukhtarov, P., Mitchell, N. J. and Muller, H. G., 2005. Empirical model of the dynamics in the mesosphere and lower thermosphere region over the UK, including solar and geomagnetic activity. Journal of Atmospheric and Solar-Terrestrial Physics, 67 (1-2), pp. 197-209.

Szasz, C., Kero, J., Pellinen-Wannberg, A., Mathews, J., Mitchell, N. J. and Singer, W., 2005. Latitudinal variations of diurnal meteor rates. Earth Moon and Planets, 95 (1-4), pp. 101-107.

Merzlyakov, E. G., Portnyagin, Y. I., Jacobi, C., Fedulina, I., Mitchell, N. J., Kashcheyev, B. L., Oleynikov, A. N. and Manson, A. H., 2005. On the day-to-day wind and semidiurnal tide variations at heights of the mid-latitude summer mesopause: Zonal wavenumber estimations and its consequences, case-study in 1998. Journal of Atmospheric and Solar-Terrestrial Physics, 67 (6), pp. 535-551.

Hocking, W. K., Singer, W., Bremer, J., Mitchell, N. J., Batista, P., Clemesha, B. and Donner, M., 2004. Meteor radar temperatures at multiple sites derived with SKiYMET radars and compared to OH, rocket and lidar measurements. Journal of Atmospheric and Solar-Terrestrial Physics, 66 (6-9), pp. 585-593.

Pancheva, D., Mitchell, N. J., Manson, A. H., Meek, C. E., Jacobi, C., Portnyagin, Y., Merzlyakov, E., Hocking, W. K., MacDougall, J., Singer, W., Igarashi, K., Clark, R. R., Riggin, D. M., Franke, S. J., Kurschner, D., Fahrutdinova, A. N., Stepanov, A. M., Kashcheyev, B. L., Oleynikov, A. N. and Muller, H. G., 2004. Variability of the quasi-2-day wave observed in the MLT region during the PSMOS campaign of June–August 1999. Journal of Atmospheric and Solar-Terrestrial Physics, 66 (6-9), pp. 539-565.

Haldoupis, C., Pancheva, D. and Mitchell, N. J., 2004. A study of tidal and planetary wave periodicities present in midlatitude sporadic E layers. Journal of Geophysical Research, 109 (A2).

Merzlyakov, E., Pancheva, D., Mitchell, N., Forbes, J. M., Portnyagin, Y. I., Palo, S., Makarov, N. and Muller, H. G., 2004. High- and mid-latitude quasi-2-day waves observed simultaneously by four meteor radars during summer 2000. Annales Geophysicae, 22 (3), pp. 773-788.

Stebel, K., Blum, U., Fricke, K. H., Kirkwood, S., Mitchell, N. J. and Osepian, A., 2004. Joint radar/lidar observations of possible aerosol layers in the winter mesosphere. Journal of Atmospheric and Solar-Terrestrial Physics, 66 (11), pp. 957-970.

Manson, A. H., Meek, C. E., Hall, C. M., Nozawa, S., Mitchell, N. J., Pancheva, D., Singer, W. and Hoffmann, P., 2004. Mesopause dynamics from the scandinavian triangle of radars within the PSMOS-DATAR Project. Annales Geophysicae, 22 (2), pp. 367-386.

Portnyagin, Y., Solovjova, T., Merzlyakov, E., Forbes, J., Palo, S., Ortland, D., Hocking, W., MacDougall, J., Thayaparan, T., Manson, A., Meek, C., Hoffmann, P., Singer, W., Mitchell, N., Pancheva, D., Igarashi, K., Murayama, Y., Jacobi, C., Kuerschner, D., Fahrutdinova, A., Korotyshkin, D., Clark, R., Taylor, M., Franke, S., Fritts, D., Tsuda, T., Nakamura, T., Gurubaran, S., Rajaram, R., Vincent, R., Kovalam, S., Batista, P., Poole, G., Malinga, S., Fraser, G., Murphy, D., Riggin, D., Aso, T. and Tsutsumi, M., 2004. Mesosphere/lower thermosphere prevailing wind model. Advances in Space Research, 34 (8), pp. 1755-1762.

Pancheva, D., Mitchell, N. J. and Younger, P. T., 2004. Meteor radar observations of atmospheric waves in the equatorial mesosphere/lower thermosphere over Ascension Island. Annales Geophysicae, 22 (2), pp. 387-404.

Portnyagin, Y. I., Solovjova, T. V., Makarov, N. A., Merzlyakov, E. G., Manson, A. H., Meek, C. E., Hocking, W., Mitchell, N., Pancheva, D., Hoffmann, P., Singer, W., Murayama, Y., Igarashi, K., Forbes, J. M., Palo, S., Hall, C. and Nozawa, S., 2004. Monthly mean climatology of the prevailing winds and tides in the Arctic mesosphere/lower thermosphere. Annales Geophysicae, 22 (10), pp. 3395-3410.

Smith, A. K., Pancheva, D. V. and Mitchell, N. J., 2004. Observations and modeling of the 6-hour tide in the upper mesosphere. Journal of Geophysical Research, 109 (D10).

Pancheva, D. V. and Mitchell, N. J., 2004. Planetary waves and variability of the semidiurnal tide in the mesosphere and lower thermosphere over Esrange (68°N, 21°E) during winter. Journal of Geophysical Research, 109, A08307.

Pancheva, D., Mitchell, N. J., Younger, P. T. and Muller, H. G., 2003. Intra-seasonal oscillations observed in the MLT region above UK (52°N, 2°W) and ESRANGE (68°N, 21°E). Geophysical Research Letters, 30 (21), 2084.

Arnold, N. F., Cook, P. A., Robinson, T. R., Lester, M., Chapman, P. J. and Mitchell, N., 2003. Comparison of D-region Doppler drift winds measured by the SuperDARN Finland HF radar over an annual cycle using the Kiruna VHF meteor radar. Annales Geophysicae, 21 (10), pp. 2073-2082.

Pancheva, D., Haldoupis, C., Meek, C. E., Manson, A. H. and Mitchell, N. J., 2003. Evidence of a role for modulated atmospheric tides in the dependence of sporadic E layers on planetary waves. Journal of Geophysical Research, 108 (A5).

Cierpik, K. M., Forbes, J. M., Miyahara, S., Miyoshi, Y., Fahrutdinova, A., Jacobi, C., Manson, A., Meek, C., Mitchell, N. J. and Portnyagin, Y., 2003. Longitude variability of the solar semidiurnal tide in the lower thermosphere through assimilation of ground- and space-based wind measurements. Journal of Geophysical Research, 108 (A5), 1202.

Jacobi, C., Kurschner, D., Muller, H. G., Pancheva, D., Mitchell, N. J. and Naujokat, B., 2003. Response of the mesopause region dynamics to the February 2001 stratospheric warming. Journal of Atmospheric and Solar-Terrestrial Physics, 65 (7), pp. 843-855.

Zhang, S. P., Salah, J. E., Mitchell, N., Singer, W., Murayama, Y., Clark, R. R., van Eyken, A. and Thayer, J., 2003. Responses of the mesospheric wind at high latitudes to the April 2002 space storm. Geophysical Research Letters, 30 (23).

Altadill, D., Apostolov, E. M., Jacobi, C. and Mitchell, N. J., 2003. Six-day westward propagating wave in the maximum electron density of the ionosphere. Annales Geophysicae, 21 (7), pp. 1577-1588.

Pancheva, D., Mitchell, N., Middleton, H. and Muller, H., 2003. Variability of the semidiurnal tide due to fluctuations in solar activity and total ozone. Journal of Atmospheric and Solar-Terrestrial Physics, 65 (1), pp. 1-19.

Pancheva, D., Mitchell, N. J., Hagan, M. E., Manson, A. H., Meek, C. E., Luo, Y., Jacobi, C., Kurschner, D., Clark, R. R., Hocking, W. K., MacDougall, J., Jones, G. O. L., Vincent, R. A., Reid, I. M., Singer, W., Igarashi, K., Fraser, G. I., Nakamura, T., Tsuda, T., Portnyagin, Y., Merzlyakov, E., Fahrutdinova, A. N., Stepanov, A. M., Poole, L. M. G., Malinga, S. B., Kashcheyev, B. L., Oleynikov, A. N. and Riggin, D. M., 2002. Global-scale tidal structure in the mesosphere and lower thermosphere during the PSMOS campaign of June-August 1999 and comparisons with the global-scale wave model. Journal of Atmospheric and Solar-Terrestrial Physics, 64 (8-11), pp. 1011-1035.

Pogoreltsev, A. I., Fedulina, I. N., Mitchell, N. J., Muller, H. G., Luo, Y., Meek, C. E. and Manson, A. H., 2002. Global free oscillations of the atmosphere and secondary planetary waves in the mesosphere and lower thermosphere region during August/September time conditions. Journal of Geophysical Research: Atmospheres, 107 (D24), 4799.

Pancheva, D., Merzlyakov, E., Mitchell, N. J., Portnyagin, Y., Manson, A. H., Jacobi, C., Meek, C. E., Luo, Y., Clark, R. R., Hocking, W. K., MacDougall, J., Muller, H. G., Kurschner, D., Jones, G. O. L., Vincent, R. A., Reid, I. M., Singer, W., Igarashi, K., Fraser, G. I., Fahrutdinova, A. N., Stepanov, A. M., Poole, L. M. G., Malinga, S. B., Kashcheyev, B. L. and Oleynikov, A. N., 2002. Global-scale tidal variability during the PSMOS campaign of June-August 1999: interaction with planetary waves. Journal of Atmospheric and Solar-Terrestrial Physics, 64 (17), pp. 1865-1896.

Middleton, H. R., Mitchell, N. J. and Muller, H. G., 2002. Mean winds of the mesosphere and lower thermosphere at 52 degrees N in the period 1988-2000. Annales Geophysicae, 20 (1), pp. 81-91.

Kirkwood, S., Barabash, V., Brandstrom, B. U. E., Mostrom, A., Stebel, K., Mitchell, N. and Hocking, W., 2002. Noctilucent clouds, PMSE and 5-day planetary waves: A case study. Geophysical Research Letters, 29 (10).

Clark, R. R., Burrage, M. D., Franke, S. J., Manson, A. H., Meek, C. E., Mitchell, N. J. and Muller, H. G., 2002. Observations of 7-d planetary waves with MLT radars and the UARS-HRDI instrument. Journal of Atmospheric and Solar-Terrestrial Physics, 64 May-Jul (8-11), pp. 1217-1228.

Pogoreltsev, A. I., Pancheva, D. and Mitchell, N. J., 2002. Secondary planetary waves in the middle atmosphere: numerical simulation and analysis of the neutral wind data. Journal of Atmospheric and Solar-Terrestrial Physics, 64 May-Jul (8-11), pp. 1251-1261.

Younger, P. T., Pancheva, D., Middleton, H. R. and Mitchell, N. J., 2002. The 8-hour tide in the Arctic mesosphere and lower thermosphere. Journal of Geophysical Research, 107 (A12).

Pancheva, D., Mitchell, N., Clark, R. R., Drobjeva, J. and Lastovicka, J., 2002. Variability in the maximum height of the ionospheric F2-layer over Millstone Hill (September 1998-March 2000); influence from below and above. Annales Geophysicae, 20 (11), pp. 1807-1819.

Jacobi, C., Portnyagin, Y. I., Merzlyakov, E. G., Kashcheyev, B. L., Oleynikov, A. N., Kurschner, D., Mitchell, N. J., Middleton, H. R., Muller, H. G. and Comley, V. E., 2001. Mesosphere/lower thermosphere wind measurements over Europe in summer 1998. Journal of Atmospheric and Solar-Terrestrial Physics, 63 (10), pp. 1017-1031.

Merzlyakov, E. G., Portnyagin, Y. I., Jacobi, C., Mitchell, N. J., Muller, H. G., Manson, A. H., Fachrutdinova, A. N., Singer, W. and Hoffmann, P., 2001. On the longitudinal structure of the transient day-to-day variation of the semidiurnal tide in the mid-latitude lower thermosphere - I. Winter season. Annales Geophysicae, 19 (5), pp. 545-562.

This list was generated on Tue Oct 17 13:15:55 2017 IST.