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Personal profile

Research interests

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.

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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mesosphere Earth & Environmental Sciences
thermosphere Earth & Environmental Sciences
meteor Earth & Environmental Sciences
meteoroids Physics & Astronomy
planetary wave Earth & Environmental Sciences
radar Earth & Environmental Sciences
gravity wave Earth & Environmental Sciences
planetary waves Physics & Astronomy

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Projects 2005 2020

ocean wave
gravity wave
mesosphere
stratosphere
general circulation model

The South Georgia Wave Experiment

Mitchell, N.

4/09/1720/10/17

Project: Central government, health and local authorities

The South Georgia Wave Experiment (SG-WEX)

Mitchell, N.

2/12/131/12/16

Project: Research council

gravity wave
experiment
mesosphere
weather
prediction

Wave Dynamics of the Mesosphere

Mitchell, N.

17/05/1016/05/13

Project: Research council

mesosphere
atmosphere
polar vortex
momentum
filter
meteor
thermosphere
mesosphere
radar
atmosphere

Research Output 2001 2018

The South Georgia Wave Experiment: A Means for Improved Analysis of Gravity Waves and Low-Level Wind Impacts Generated from Mountainous Islands

Jackson, D. R., Gadian, A., Hindley, N. P., Hoffmann, L., Hughes, J., King, J., Moffat-griffin, T., Moss, A. C., Ross, A. N., Vosper, S. B., Wright, C. J. & Mitchell, N. J. 1 May 2018 In : Bulletin of the American Meteorological Society. 99, 5, p. 1027-1040

Research output: Contribution to journalArticle

Open Access
6 Citations

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

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. & Hibbins, R. 1 Feb 2017 In : Journal of Atmospheric and Solar-Terrestrial Physics. 154, p. 132-166 35 p.

Research output: Contribution to journalArticle

Open Access
File
radar tracking
meteoroids
systems analysis
meteor
high altitude
5 Citations
Open Access
AIRS
gravity wave
momentum
transform
climate modeling
5 Citations

Global observations of 2 day wave coupling to the diurnal tide in a high-altitude forecast-assimilation system

Lieberman, R. S., Riggin, D. M., Nguyen, V., Palo, S. E., Siskind, D. E., Mitchell, N. J., Stober, G., Wilhelm, S. & Livesey, N. J. 27 Apr 2017 In : Journal of Geophysical Research : Atmospheres. 122, 8, p. 4135-4149 15 p.

Research output: Contribution to journalArticle

Open Access
File
Tides
assimilation
high altitude
tides
forecasting
1 Citations

The semiannual oscillation of the tropical zonal wind in the middle atmosphere derived from satellite geopotential height retrievals

Smith, A. K., Garcia, R., Moss, A. C. & Mitchell, N. J. 1 Aug 2017 In : Journal of the Atmospheric Sciences. 74, 8, p. 2413-2425 13 p.

Research output: Contribution to journalArticle

Open Access
File
semiannual oscillation
middle atmosphere
zonal wind
geopotential
quasi-biennial oscillation