Research Output 1987 2020

2011
2 Citations (Scopus)

Ambient noise in the Western English Channel: Temporal variability due to shipping and biological sources

Merchant, N., Witt, M. J., Blondel, P., Godley, B. J. & Smith, G. H., Oct 2011, Proceedings of the Institute of Acoustics. Institute of Acoustics, Vol. 33. p. 27-29 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

25 Citations (Scopus)

Aura MLS observations of the westward-propagating s=1, 16-day planetary wave in the stratosphere, mesosphere and lower thermosphere

Day, K. A., Hibbins, R. E. & Mitchell, N. J., 2011, In : Atmospheric Chemistry & Physics. 11, 9, p. 4149-4161 13 p.

Research output: Contribution to journalArticle

microwave limb sounder
planetary wave
thermosphere
mesosphere
stratosphere
1 Citation (Scopus)

Charge measurements in stratiform cloud from a balloon based sensor

Nicoll, K. A. & Harrison, R. G., 23 Jun 2011, In : Journal of Physics: Conference Series. 301, 1, 012003.

Research output: Contribution to journalArticle

balloons
sensors
in situ measurement
charging
atmospheric electricity
4 Citations (Scopus)
91 Downloads (Pure)
File
thundercloud
radio wave
electron
simulation
geomagnetic field
24 Citations (Scopus)

HIRDLS observations of gravity wave momentum fluxes over the monsoon regions

Wright, C. J. & Gille, J. C., 16 Jun 2011, In : Journal of Geophysical Research: Atmospheres. 116, D12, 10 p., D12103.

Research output: Contribution to journalArticle

Gravity waves
monsoons
momentum
gravity waves
limbs
29 Citations (Scopus)

Intercomparisons of HIRDLS, COSMIC and SABER for the detection of stratospheric gravity waves

Wright, C. J., Rivas, M. B. & Gille, J. C., 17 Aug 2011, In : Atmospheric Measurement Techniques. 4, 8, p. 1581-1591 11 p.

Research output: Contribution to journalArticle

Open Access
COSMIC
gravity wave
limb
atmosphere
perturbation
2 Citations (Scopus)

Ionospheric scitillation activity measured in the African sector

Susnik, A. & Forte, B., 21 Nov 2011, 30th URSI General Assembly and Scientific Symposium (URSIGASS), 2011. 6050919

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Scintillation
Electrons
Global positioning system

Lee waves: new understanding of a classical problem

Dalziel, S. B., Patterson, M. D., Caulfield, C. P. & Le Brun, S., Aug 2011, Proceedings of VII International Symposium on Stratified Flows, 2011. Cenedese, A., Espa, S. & Purini, R. (eds.). p. 1162 1 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

lee waves
two dimensional flow
stratified flow
Froude number
uniform flow
28 Citations (Scopus)

Observations of Saharan dust layer electrification

Nicoll, K. A., Harrison, R. G. & Ulanowski, Z., 1 Jan 2011, In : Environmental Research Letters . 6, 1, 014001.

Research output: Contribution to journalArticle

electrification
Dust
dust
Particles (particulate matter)
Balloons

Self-dependent 3D face rotational alignment using the nose region

Emambakhsh, M. & Evans, A., 3 Nov 2011, 4th International Conference on Imaging for Crime Detection and Prevention 2011: ICDP 2011. IEEE, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Face recognition
Biometrics
Simulated annealing

Sensing the earth with the SGR-ReSI multi-antenna space GPS/GNSS receiver

Unwin, M., De Vos Van Steenwijk, R., Brenchley, M., Gommenginger, C., Mitchell, C. & Gao, S., 2011, In : Advances in the Astronautical Sciences. 141, p. 735-744 10 p.

Research output: Contribution to journalArticle

GNSS
antenna
Global positioning system
remote sensing
Remote sensing

The climatology, propagation and excitation of ultra-fast Kelvin waves as observed by meteor radar, Aura MLS, TRMM and in the Kyushu-GCM

Davis, R. N., Chen, Y. W., Miyahara, S. & Mitchell, N. J., 2011, In : Atmospheric Chemistry and Physics Discussions. 11, 10, p. 29479-29525 47 p.

Research output: Contribution to journalArticle

Kelvin wave
TRMM
meteor
climatology
general circulation model
11 Citations (Scopus)
97 Downloads (Pure)

The earth's electromagnetic environment

Fullekrug, M. & Fraser-Smith, A. C., Nov 2011, In : Geophysical Research Letters. 38, 21, 5 p., L21807.

Research output: Contribution to journalArticle

File
frequency dependence
electromagnetic field
scaling laws
electromagnetism
electromagnetic fields
1 Citation (Scopus)

Underwater ambient noise of glaciers on Svalbard as indicator of dynamic processes in the Arctic

Tegowski, J., Deane, G., Lisimenka, A. & Blondel, P., 2011, Proceedings of the Institute of Acoustics. Institute of Acoustics, Vol. 33. p. 83-85 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)
110 Downloads (Pure)

Worldwide extremely low frequency magnetic field sensor network for sprite studies

Whitley, T., Fullekrug, M., Rycroft, M., Bennett, A., Wyatt, F., Elliott, D., Heinson, G., Hitchman, A., Lewis, A., Sefako, R., Fourie, P., Dyers, J., Thomson, A. & Flower, S., 2011, In : Radio Science. 46, 4, RS4007.

Research output: Contribution to journalArticle

Open Access
File
51 Citations (Scopus)

Zonal wave numbers of the summertime 2 day planetary wave observed in the mesosphere by EOS Aura Microwave Limb Sounder

Tunbridge, V. M., Sandford, D. J. & Mitchell, N. J., 16 Jun 2011, In : Journal of Geophysical Research. 116, D11, 16 p., D11103.

Research output: Contribution to journalArticle

microwave limb sounder
planetary wave
mesosphere
EOS
limbs
2010
1 Citation (Scopus)

A hybrid top-down/bottom-up approach for image segmentation incorporating colour and texture with prior shape knowledge

Emambakhsh, M., Ebrahimnezhad, H. & Sedaaghi, M. H., 2010.

Research output: Contribution to conferencePaper

Image segmentation
Textures
Color
Binary images
Set theory

Compensating for motion artefacts in X-ray CT using ellectrical imepdance tomography data

Pengpan, T., Mitchell, C. N. & Soleimani, M., 2010, p. 1132-1136. 5 p.

Research output: Contribution to conferencePaper

Tomography
X rays
Acoustic impedance
Imaging techniques
Motion compensation
48 Citations (Scopus)
stratiform cloud
cosmic ray
droplet
charging
cosmic rays
34 Citations (Scopus)

High Resolution Dynamics Limb Sounder measurements of gravity wave activity in the 2006 Arctic stratosphere

Wright, C. J., Osprey, S. M., Barnett, J. J., Gray, L. J. & Gille, J. C., 27 Jan 2010, In : Journal of Geophysical Research: Atmospheres. 115, D2, 10 p., D02105.

Research output: Contribution to journalArticle

Acoustic variables measurement
Upper atmosphere
Gravity waves
acoustic measurement
gravity waves
5 Citations (Scopus)

Integrated region-based segmentation using color components and texture features with prior shape knowledge

Emambakhsh, M., Ebrahimnezhad, H. & Sedaaghi, M. H., 20 Dec 2010, In : International Journal of Applied Mathematics and Computer Science. 20, 4, p. 711-726 16 p.

Research output: Contribution to journalArticle

Color Segmentation
Texture Feature
Segmentation
Textures
Color
53 Citations (Scopus)
71 Downloads (Pure)

Multi-instrumental observations of a positive gigantic jet produced by a winter thunderstorm in Europe

van der Velde, O. A., Bor, J., Li, J. B., Cummer, S. A., Arnone, E., Zanotti, F., Fullekrug, M., Haldoupis, C., NaitAmor, S. & Farges, T., 16 Dec 2010, In : Journal of Geophysical Research. 115, D24, D24301.

Research output: Contribution to journalArticle

Open Access
File
lightning
Thunderstorms
thunderstorms
thunderstorm
winter
20 Citations (Scopus)
99 Downloads (Pure)

Relativistic runaway breakdown in low-frequency radio

Fullekrug, M., Roussel-Dupre, R., Symbalisty, E. M. D., Chanrion, O., Odzimek, A., van der Velde, O. & Neubert, T., Jan 2010, In : Journal of Geophysical Research. 115, A1, 10 p., A00E09.

Research output: Contribution to journalArticle

File
sprite
Lightning
Electromagnetic waves
radio
electromagnetic radiation
55 Citations (Scopus)

Self-charging of the Eyjafjallajökull volcanic ash plume

Harrison, R. G., Nicoll, K. A., Ulanowski, Z. & Mather, T. A., 27 May 2010, In : Environmental Research Letters . 5, 2, 024004.

Research output: Contribution to journalArticle

Ashes
Atmospheric electricity
Volcanic Eruptions
Balloons
Scotland
32 Citations (Scopus)

Southern Argentina Agile Meteor Radar: System design and initial measurements of large-scale winds and tides

Fritts, D. C., Janches, D., Iimura, H., Hocking, W. K., Mitchell, N. J., Stockwell, R. G., Fuller, B., Vandepeer, B., Hormaechea, J., Brunini, C. & Levato, H., 22 Sep 2010, In : Journal of Geophysical Research. 115, D18112.

Research output: Contribution to journalArticle

Argentina
radar
meteoroids
Tides
meteor
26 Citations (Scopus)

The 5-day wave in the Arctic and Antarctic mesosphere and lower thermosphere

Day, K. A. & Mitchell, N. J., 15 Jan 2010, In : Journal of Geophysical Research. 115, D01109.

Research output: Contribution to journalArticle

mesosphere
thermosphere
Arctic region
winter
summer
12 Citations (Scopus)

Turbulent times in the northern polar ionosphere?

Burston, R., Astin, I., Mitchell, C., Alfonsi, L., Pedersen, T. & Skone, S., Apr 2010, In : Journal of Geophysical Research. 115, A4, 12 p., A04310.

Research output: Contribution to journalArticle

Ionosphere
Scintillation
ionospheres
scintillation
ionosphere
2 Citations (Scopus)

Using ionospheric imaging combined with feature tracking to automate identification and tracking of polar-cap plasma patches

Burston, R., Hodges, K., Astin, I., Bergeot, N., Bruyninx, C. & Chevalier, J-M., 2010, 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation 2010, ION GNSS 2010. Fairfax, VA.: Institute of Navigation, p. 343-348 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

GPS
plasma
radio
electron
ionosphere

ZigBee performance in 400 kV air insulated power substation

Shan, Q., Glover, I. A., Moore, P. J., Portugues, I. E., Rutherford, R., Atkinson, R., Bhatti, S. & Watson, R. J., 2010, Technological Developments in Education and Automation. Iskander, M., Kapila, V. & Karim, M. A. (eds.). The Netherlands: Springer, p. 15-18 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zigbee
Air
2009
15 Citations (Scopus)

A lightweight balloon-carried cloud charge sensor

Nicoll, K. A. & Harrison, R. G., Jan 2009, In : Review of Scientific Instruments. 80, 1, 014501.

Research output: Contribution to journalArticle

Balloons
balloons
sensors
Sensors
meteorological balloons
3 Citations (Scopus)

Automatic MRI brain segmentation using local features, self-organizing maps, and watershed

Emambakhsh, M. & Sedaaghi, M. H., 2009, p. 123-128. 6 p.

Research output: Contribution to conferencePaper

Self organizing maps
Watersheds
Magnetic resonance imaging
Brain
Image segmentation
13 Citations (Scopus)

Correlation between scintillation indices and gradient drift wave amplitudes in the northern polar ionosphere

Burston, R., Astin, I., Mitchell, C. N., Alfonsi, L., Pedersen, T. & Skone, S., Jul 2009, In : Journal of Geophysical Research. 114, A7, A07309.

Research output: Contribution to journalArticle

Ionosphere
Scintillation
ionospheres
scintillation
plasma drift
3 Citations (Scopus)

Exploration of the electromagnetic environment

Fullekrug, M., 2009, In : Physics Education. 44, 2, p. 133-137 5 p.

Research output: Contribution to journalArticle

electromagnetism
electric fields
recording
data acquisition
experiment
18 Citations (Scopus)
mesopause
meteoroids
meteor
gravity waves
gravity wave
16 Citations (Scopus)

Gravity waves in the mesopause region observed by meteor radar: 1. A simple measurement technique

Mitchell, N. J. & Beldon, C. L., Jun 2009, In : Journal of Atmospheric and Solar-Terrestrial Physics. 71, 8-9, p. 866-874 9 p.

Research output: Contribution to journalArticle

mesopause
meteoroids
meteor
gravity waves
gravity wave
48 Citations (Scopus)
planetary wave
mesosphere
thermosphere
stratosphere
planetary waves
57 Citations (Scopus)
planetary wave
mesosphere
thermosphere
stratosphere
planetary waves
3 Citations (Scopus)

Real-time Propagation Forecasting for Earth-Space Communication

Watson, R. J. & Hodges, D. D., 8 Dec 2009, Loughborough Antennas and Propagation Conference, LAPC 2009 - Conference Proceedings. p. 31-35 5 p. 5352582

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Earth (planet)
Meteorological radar
Troposphere
Communication
Power control
23 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
25 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
126 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
3 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

Bistatic scattering in sediments: Comparison of model and scaled tank experiments at 238 kHz

Howey, R. & Blondel, P., 2008, p. 3353-3358. 6 p.

Research output: Contribution to conferencePaper

scattering
sediment
experiment
sonar
comparison

Estimation of macrophytes using single-beam and multibeam echosounding for environmental monitoring of arctic fjords (Kongsfjord, West Svalbard Island)

Kruss, A., Tegowski, J., Wiktor, J., Tatarek, A. & Blondel, P., 2008, p. 1743-1748. 6 p.

Research output: Contribution to conferencePaper

fjord
environmental monitoring
acoustics
alga
phytobenthos

Investigation into the possible role of dolphins' teeth in sound reception

Graf, S., Megill, W. M., Blondel, P. & Clift, S. E., 2008, p. 2809-2813.

Research output: Contribution to conferenceOther

dolphin
tooth
sonar
echolocation
bioacoustics
14 Citations (Scopus)

Laboratory assessment of WLAN performance degradation in the presence of impulsive noise

Shan, Q., Glover, I. A., Moore, P. J., Portugues, I. E., Watson, R. J., Rutherford, R., Atkinson, R. & Bhatti, S., 6 Oct 2008, International Wireless Communications and Mobile Computing Conference (IWCMC), 2008 . U. S. A.: IEEE, p. 859-863 5 p. 4600047

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Impulse noise
Wireless local area networks (WLAN)
Partial discharges
Degradation
Electricity

Passive acoustic localization techniques of Eastern Pacific grey whales

Wladichuk, J. L., Megill, W. M. & Blondel, P., 2008, p. 1709-1714. 6 p.

Research output: Contribution to conferencePaper

whales
acoustics
seaweeds
acoustic imaging
British Columbia