Research Output 1987 2019

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2009
22 Citations (Scopus)

The sporadic radiant and distribution of meteors in the atmosphere as observed by VHF radar at Arctic, Antarctic and equatorial latitudes

Younger, P. T., Astin, I., Sandford, D. J. & Mitchell, N. J., 2009, In : Annales Geophysicae. 27, 7, p. 2831-2841 11 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)

Vertical current flow through extensive layer clouds

Nicoll, K. A. & Harrison, R. G., Dec 2009, In : Journal of Atmospheric and Solar-Terrestrial Physics. 71, 17-18, p. 2040-2046 7 p.

Research output: Contribution to journalArticle

cloud cover
atmospheric electricity
radiation measurement
Earth surface
solar radiation
24 Citations (Scopus)

Wideband digital low-frequency radio receiver

Füllekrug, M., Nov 2009, In : Measurement Science and Technology. 21, 1, 015901.

Research output: Contribution to journalArticle

radio receivers
Radio receivers
Low Frequency
Receiver
low frequencies
2008
5 Citations (Scopus)

A double-Gerdien instrument for simultaneous bipolar air conductivity measurements on balloon platforms

Nicoll, K. A. & Harrison, R. G., Aug 2008, In : Review of Scientific Instruments. 79, 8, 084502.

Research output: Contribution to journalArticle

air conductivity
Balloons
balloons
Radiosondes
radiosondes
14 Citations (Scopus)

Air-earth current density measurements at Lerwick; implications for seasonality in the global electric circuit

Harrison, R. G. & Nicoll, K. A., Jul 2008, In : Atmospheric Research. 89, 1-2, p. 181-193 13 p.

Research output: Contribution to journalArticle

density current
atmospheric electricity
seasonality
air
lightning
124 Citations (Scopus)

An overview of Earth's global electric circuit and atmospheric conductivity

Rycroft, M. J., Harrison, R. G., Nicoll, K. A. & Mareev, E. A., 1 Jun 2008, In : Space Science Reviews. 137, 1-4, p. 83-105 23 p.

Research output: Contribution to journalArticle

atmospheric conductivity
lightning
conductivity
air conductivity
Earth surface
2 Citations (Scopus)

Automated chirp detection with diffusion entropy: Application to infrasound from sprites

Ignaccolo, M., Farges, T., Blanc, E. & Füllekrug, M., 2008, In : Chaos Solitons & Fractals. 38, 4, p. 1039-1050 12 p.

Research output: Contribution to journalArticle

Chirp
Entropy
Detector
Spectrogram
False Alarm Rate
85 Citations (Scopus)

Recent Results from Studies of Electric Discharges in the Mesosphere

Neubert, T., Rycroft, M., Farges, T., Blanc, E., Chanrion, O., Arnone, E., Odzimek, A., Arnold, N., Enell, C. F., Turunen, E., Bosinger, T., Mika, A., Haldoupis, C., Steiner, R. J., van der Velde, O., Soula, S., Berg, P., Boberg, F., Thejll, P., Christiansen, B. & 5 others, Ignaccolo, M., Füllekrug, M., Verronen, P. T., Montanya, J. & Crosby, N., 2008, In : Surveys in Geophysics. 29, 2, p. 71-137 67 p.

Research output: Contribution to journalArticle

sprite
Thunderstorms
Electric discharges
electric discharges
mesosphere
2006

Tracing patterns in the Antarctic sky

Mitchell, N., 1 Sep 2006, Planet Earth - Natural Environment Research Council, AUTUMN 2006, p. 8-9 2 p.

Research output: Contribution to specialist publicationArticle

2003
11 Citations (Scopus)

Intra-seasonal oscillations observed in the MLT region above UK (52°N, 2°W) and ESRANGE (68°N, 21°E)

Pancheva, D., Mitchell, N. J., Younger, P. T. & Muller, H. G., 4 Nov 2003, In : Geophysical Research Letters. 30, 21, p. 1-4 4 p., 2084.

Research output: Contribution to journalArticle

intraseasonal variations
oscillation
oscillations
meteoroids
polar regions
19 Citations (Scopus)

The use of GPS measurements for water vapor determination

Bengtsson, L., Robinson, G., Anthes, R., Aonashi, K., Dodson, A., Elgered, G., Gendt, G., Gurney, R., Jietai, M., Mitchell, C., Mlaki, M., Rhodin, A., Silvestrin, P., Ware, R., Watson, R. & Wergen, W., 1 Sep 2003, In : Bulletin of the American Meteorological Society. 84, 9, p. 1249-1258+1162

Research output: Contribution to journalArticle

2002
71 Citations (Scopus)

Mean winds and tides in the Arctic mesosphere and lower thermosphere

Mitchell, N. J., Pancheva, D., Middleton, H. R. & Hagan, M. E., 3 Jan 2002, In : Journal of Geophysical Research: Space Physics. 107, A1

Research output: Contribution to journalArticle

2001
19 Citations (Scopus)

A spectral climatology of planetary waves and tidal variability

Beard, A. G., Williams, P. J. S., Mitchell, N. J. & Muller, H. G., 23 May 2001, In : Journal of Atmospheric and Solar-Terrestrial Physics. 63, 9, p. 801-811 11 p.

Research output: Contribution to journalArticle

2000
36 Citations (Scopus)

Automatic mine detection by textural analysis of COTS sidescan sonar imagery

Blondel, P., 1 Jan 2000, In : International Journal of Remote Sensing. 21, 16, p. 3115-3128 14 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Global lightning acquisition system installed

Füllekrug, M., Constable, S., Heinson, G., Sato, M., Takahashi, Y., Price, C. & Williams, E., 25 Jul 2000, In : Eos, Transactions American Geophysical Union . 81, 30, p. 333-48 16 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)

Nonlinear interactions between planetary waves in the mesosphere/lower-thermosphere region

Pancheva, D., Beard, A. G., Mitchell, N. J. & Muller, H. G., 1 Jan 2000, In : Journal of Geophysical Research: Space Physics. 105, A1, p. 157-170 14 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Rapid variations in echo power maps of VHF radar backscatter from the lower atmosphere

Worthington, R. M., Palmer, R. D., Fukao, S., Yamamoto, M. & Astin, I., 1 May 2000, In : Journal of Atmospheric and Solar-Terrestrial Physics. 62, 7, p. 573-581 9 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

The 1999 Leonid meteor storm: Verification of rapid activity variations by observations at three sites

Singer, W., Molau, S., Rendtel, J., Asher, D. J., Mitchell, N. J. & Von Zahn, U., 1 Nov 2000, In : Monthly Notices of the Royal Astronomical Society. 318, 3, p. L25-L29 5 p.

Research output: Contribution to journalArticle

1999
15 Citations (Scopus)

A general formalism for the distribution of the total length of a geophysical parameter along a finite transect

Astin, I. & Di Girolamo, L., 1 Dec 1999, In : IEEE Transactions on Geoscience and Remote Sensing. 37, 1 II, p. 508-512 5 p.

Research output: Contribution to journalArticle

56 Citations (Scopus)

Climatology of the semidiurnal tide at 52-56°N from ground-based radar wind measurements 1985-1995

Jacobi, C., Portnyagin, Y. I., Solovjova, T. V., Hoffmann, P., Singer, W., Fahrutdinova, A. N., Ishmuratov, R. A., Beard, A. G., Mitchell, N. J., Muller, H. G., Schminder, R., Kürschner, D., Manson, A. H. & Meek, C. E., 1 Sep 1999, In : Journal of Atmospheric and Solar-Terrestrial Physics. 61, 13, p. 975-991 17 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Mesopause region semidiurnal tide over Europe as seen from ground-based wind measurements

Jacobi, C., Portnyagin, Y. I., Solovjova, T. V., Hoffmann, P., Singer, W., Kashcheyev, B. L., Oleynikov, A. N., Fahrutdinova, A. N., Solntsev, R. N., Beard, A. G., Mitchell, N. J., Muller, H. G., Schminder, R. & Kürschner, D., Dec 1999, In : Advances in Space Research. 24, 11, p. 1545-1548 4 p.

Research output: Contribution to journalArticle

98 Citations (Scopus)

Non-linear interactions between tides and planetary waves resulting in periodic tidal variability

Beard, A. G., Mitchell, N. J., Williams, P. J. S. & Kunitake, M., 15 Mar 1999, In : Journal of Atmospheric and Solar-Terrestrial Physics. 61, 5, p. 363-376 14 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)

The 16-day planetary wave in the mesosphere and lower thermosphere

Mitchell, N. J., Middleton, H. R., Beard, A. G., Williams, P. J. S. & Muller, H. G., 30 Nov 1999, In : Annales Geophysicae. 17, 11, p. 1447-1456 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

The coupling of planetary waves, tides and gravity waves in the mesosphere and lower thermosphere

Williams, P. J. S., Mitchell, N. J., Beard, A. G., Howells, V. S. C. & Muller, H. G., 1999, In : Advances in Space Research. 24, 11, p. 1571-1576 6 p.

Research output: Contribution to journalArticle

1998
12 Citations (Scopus)

A case for exponential cloud fields?

Astin, I. & Latter, B. G., 1 Oct 1998, In : Journal of Applied Meteorology. 37, 10 PART II, p. 1375-1382 8 p.

Research output: Contribution to journalArticle

Open Access
105 Citations (Scopus)

Hydrothermal activity along the southwest Indian ridge

German, C. R., Baker, E. T., Mevel, C., Tamaki, K., Blondel, P., Evans, A., Flewellen, C., Matthew, D., Parson, L., Wallace, A., Boulanger, D., Sauter, D., Fujimoto, H., Osada, Y., Tamura, C., Yama-Ashi, T., Gomez, O., Lee, S. M., Searle, R. C., Patriat, P. & 3 others, Pouliquen, G., Rommevau-Jestin, C. & Yamada, T., 1 Oct 1998, In : Nature. 395, 6701, p. 490-493 4 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Mesospheric and lower thermospheric winds at middle Europe and Northern Scandinavia during the Leonid 1999 meteor storm

Singer, W., Hoffmann, P., Mitchell, N. J. & Jacobi, C., 1 Dec 1998, In : Earth, Moon and Planets. 82-83, p. 565-574 10 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Quantitative characterisation of geological processes using sidescan sonar imagery

Blondel, P. & Parson, L. M., 1 Dec 1998, In : IEE Colloquium (Digest). 217

Research output: Contribution to journalArticle

13 Citations (Scopus)

Vertical velocities associated with gravity waves measured in the mesosphere and lower thermosphere with the EISCAT VHF radar

Mitchell, N. J. & Howells, V. S. C., 31 Oct 1998, In : Annales Geophysicae. 16, 10, p. 1367-1379 13 p.

Research output: Contribution to journalArticle

1997
15 Citations (Scopus)

A statistical study of underestimates of wind speeds by VHF radar

Thomas, L., Astin, I. & Worthington, R. M., 1 Jan 1997, In : Annales Geophysicae. 15, 6, p. 805-812 8 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Confidence interval estimation for YHF doppler radar measurements of wind velocities

Astin, I., 1 Nov 1997, In : Radio Science. 32, 6, p. 2221-2231 11 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Mesopause-region tidal variability observed by meteor radar

Beard, A. G., Mitchell, N. J., Williams, P. J. S., Jones, W. & Muller, H. G., 1997, In : Advances in Space Research. 20, 6, p. 1237-1240 4 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Tectonic significance of the South Iceland Seismic Transform Zone

Luxey, P., Blondel, P. & Parson, L. M., 10 Aug 1997, In : Journal of Geophysical Research B: Solid Earth. 102, B8, p. 17967-17980 14 p., 97JB00727.

Research output: Contribution to journalArticle

1996
4 Citations (Scopus)

Formation and evolution of the westernmost corona of Aphrodite Terra, Venus

Ansan, V. & Blondel, P., Aug 1996, In : Planetary and Space Science. 44, 8, p. 833-841 9 p.

Research output: Contribution to journalArticle

Open Access
7 Citations (Scopus)

Observations of gravity waves in the upper and lower stratosphere by lidar and ozonesondes

Mitchell, N. J., McDonald, A. J., Reid, S. J. & Price, J. D., 31 Mar 1996, In : Annales Geophysicae. 14, 3, p. 309-314 6 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)
1995

The Mid-Atlantic Ridge between 29°N and 31°30′N in the last 10 Ma

Sempéré, J. C., Blondel, P., Briais, A., Fujiwara, T., Géli, L., Isezaki, N., Pariso, J. E., Parson, L., Patriat, P. & Rommevaux, C., Feb 1995, In : Earth and Planetary Science Letters. 130, 1-4, p. 45-55 11 p.

Research output: Contribution to journalArticle

Open Access
1994

Distribution of ozone laminae during EASOE and the possible influence of inertia‐gravity waves

Reid, S. J., Vaughan, G., Mitchell, N. J., Prichard, I. T., Smit, H. J., Jorgensen, T. S., Varotsos, C. & de Backer, H., 22 Jun 1994, In : Geophysical Research Letters. 21, 13, p. 1479-1482 4 p.

Research output: Contribution to journalArticle

The form of metre-scale turbulence at mesopause heights in summer

Thomas, L. & Astin, I., 1 Jan 1994, In : Journal of Atmospheric and Terrestrial Physics. 56, 4, p. 467-478 12 p.

Research output: Contribution to journalArticle

1992

Adaptive filtering and structure-tracking for statistical analysis of geological features in radar images

Blondel, P., Sotin, C. & Masson, P., Oct 1992, In : Computers and Geosciences. 18, 9, p. 1169-1184 16 p.

Research output: Contribution to journalArticle

The characteristics of VHF echoes from the summer mesopause region at mid-latitudes

Thomas, L., Astin, I. & Prichard, I. T., 1 Jan 1992, In : Journal of Atmospheric and Terrestrial Physics. 54, 7-8, p. 969-977 9 p.

Research output: Contribution to journalArticle

1991

Compression and rarefaction of F-region plasma caused by an atmospheric gravity wave

Thomas, L. & Astin, I., 1 Jan 1991, In : Journal of Atmospheric and Terrestrial Physics. 53, 1-2, p. 49-52 4 p.

Research output: Contribution to journalArticle

Lidar studies of stratospheric gravity-wave spectra

Marsh, A. K. P., Mitchell, N. J. & Thomas, L., 1 Jan 1991, In : Planetary and Space Science. 39, 11, p. 1541-1548 8 p.

Research output: Contribution to journalArticle

The rapid fading of radio waves reflected from sporadic-E ionization

Astin, I. & Thomas, L., 1 Jan 1991, In : Journal of Atmospheric and Terrestrial Physics. 53, 1-2, p. 99-104 6 p.

Research output: Contribution to journalArticle

1990

Lidar studies of stratospheric gravity waves: a comparison of analysis techniques

Mitchell, N. J., Thomas, L. & Marsh, A. K. P., 1 Jan 1990, In : Annales Geophysicae. 8, 10, p. 705-711 7 p.

Research output: Contribution to journalArticle

1987

On the structure of background winds near the summer mesopause

Muller, H. G., Lachlan-Cope, T. A. & Mitchell, N. J., 1 Aug 1987, In : Physica Scripta. 36, 2, p. 323-326 4 p.

Research output: Contribution to journalArticle