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Research Output 2001 2018

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2018

Analysis of the Regional Ionosphere at Low Latitudes in Support of the Biomass ESA Mission

Alfonsi, L. , Povero, G. , Spogli, L. , Cesaroni, C. , Forte, B. , Mitchell, C. , Burston, R. , Sreeja, V. , Aquino, M. , Klausner, V. , Muella, M. , Pezzopane, M. , Hunstad, I. , De Franceschi, G. , Musicò, E. , Pini, M. , The, V. L. , Trung, H. T. , Husin, A. , Ekawati, S. & 5 others de la Cruz-Cayapan, C. V., Abdullah, M., Mat Daud, N., Huy, M. L. & Floury, N. 21 Jun 2018 In : IEEE Transactions on Geoscience and Remote Sensing. PP, 99

Research output: Contribution to journalArticle

Open Access
File
1 Citations

Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm

Chartier, A. T., Mitchell, C. N. & Miller, E. S. 1 Mar 2018 In : Journal of Geophysical Research: Space Physics. 123, 3, p. 2327-2335 9 p.

Research output: Contribution to journalArticle

Open Access
Ionosphere
polar caps
swarms
Southern Hemisphere
ionospherics
2017
1 Citations

A multiresolution inversion for imaging the ionosphere

Yin, P., Zheng, Y. N., Mitchell, C. N. & Li, B. 7 Jun 2017 In : Journal of Geophysical Research: Space Physics. 122, 6, p. 6799-6811 13 p.

Research output: Contribution to journalArticle

Open Access
Ionosphere
ionospheres
ionosphere
ionospherics
image analysis
4 Citations

Identification of scintillation signatures on GPS signals originating from plasma structures detected with EISCAT incoherent scatter radar along the same line of sight

Forte, B., Coleman, C., Skone, S., Häggström, I., Mitchell, C., Da Dalt, F., Panicciari, T., Kinrade, J. & Bust, G. 1 Jan 2017 In : Journal of Geophysical Research: Space Physics. 122, 1, p. 916-931 16 p.

Research output: Contribution to journalArticle

Open Access
navigation
GPS
radar
telecommunication
plasma

Ionospheric data assimilation applied to HF geolocation in the presence of traveling ionospheric disturbances

Mitchell, C. N., Rankov, N. R., Bust, G. S., Miller, E., Gaussiran, T., Calfas, R., Doyle, J. D., Teig, L. J., Werth, J. L. & Dekine, I. 1 Jul 2017 In : Radio Science. 52, 7, p. 829-840 12 p.

Research output: Contribution to journalArticle

Open Access
traveling ionospheric disturbances
assimilation
data assimilation
ionospherics
Ionospheric measurement
2016
Open Access
File
polar regions
alternating current
direct current
gradients
electric fields
6 Citations

Imaging the topside-ionosphere and plasmasphere with ionospheric tomography using COSMIC GPS TEC: plasmaspheric imaging with tomography

Pinto Jayawardena, T. S., Chartier, A. T., Spencer, P. & Mitchell, C. N. Jan 2016 In : Journal of Geophysical Research: Space Physics. 121, 1, p. 817-831

Research output: Contribution to journalArticle

Open Access
9 Citations

Ionospheric data assimilation and forecasting during storms

Chartier, A. T., Matsuo, T., Anderson, J. L., Collins, N., Hoar, T. J., Lu, G., Mitchell, C. N., Coster, A. J., Paxton, L. J. & Bust, G. S. 18 Feb 2016 In : Journal of Geophysical Research: Space Physics. 121, 1, p. 764-778 15 p.

Research output: Contribution to journalArticle

Open Access
File
data assimilation
electrodynamics
thermosphere
electron density
electric field
5 Citations
Open Access
File
polar caps
turbulence
gradients
scintillation
Dynamics Explorer 2 satellite
11 Citations

Satellite-beacon Ionospheric-scintillation Global Model of the upper Atmosphere (SIGMA) II: inverse modeling with high latitude observations to deduce irregularity physics

Deshpande, K. D., Bust, G. S., Clauer, C. R., Scales, W. A., Frissell, N. A., Ruohoniemi, J. M., Spogli, L., Mitchell, C. & Weatherwax, A. T. 28 Sep 2016 In : Journal of Geophysical Research: Space Physics. 121, 9, p. 9188-9023

Research output: Contribution to journalArticle

Open Access
File
upper atmosphere
physics
GNSS
modeling
electromagnetic wave
5 Citations

Three‐dimensional modeling of high‐latitude scintillation observations

Chartier, A., Forte, B., Deshpande, K., Bust, G. S. & Mitchell, C. 15 Jul 2016 In : Radio Science. 51, 7

Research output: Contribution to journalArticle

Open Access
File
2015
7 Citations

GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012 - Part 2: Interhemispheric comparison

Prikryl, P., Ghoddousi-Fard, R., Spogli, L., Mitchell, C. N., Li, G., Ning, B., Cilliers, P. J., Sreeja, V., Aquino, M., Terkildsen, M., Jayachandran, P. T., Jiao, Y., Morton, Y. T., Ruohoniemi, J. M., Thomas, E. G., Zhang, Y., Weatherwax, A. T., Alfonsi, L., De Franceschi, G. & Romano, V. 2015 In : Annales Geophysicae. 33, 6, p. 657-670 14 p.

Research output: Contribution to journalArticle

geomagnetic storm
magnetic storms
polar regions
scintillation
GPS
1 Citations

Using sparse regularization for multi-resolution tomography of the ionosphere

Panicciari, T., Smith, N. D., Mitchell, C. N., Da Dalt, F. & Spencer, P. S. J. 2015 In : Nonlinear Processes in Geophysics. 22, 5, p. 613-624 12 p.

Research output: Contribution to journalArticle

Ionosphere
ionospheres
tomography
Tomography
ionosphere
2014
3 Citations
GPS
anomaly
plasma
2 Citations
COSMIC
electron density
radio
geomagnetic storm
extreme event
3 Citations

Ionospheric corrections for GPS time transfer

Rose, J. A. R., Watson, R. J., Allain, D. J. & Mitchell, C. N. 2014 In : Radio Science. 49, 3, p. 196-206

Research output: Contribution to journalArticle

Global Positioning System
ionospherics
Global positioning system
GPS
Tomography
6 Citations

Ionospheric imaging in Africa

Chartier, A. T. , Kinrade, J. , Mitchell, C. N. , Rose, J. A. R. , Jackson, D. R. , Cilliers, P. , Habarulema, J-B. , Katamzi, Z. , McKinnell, L-A. , Matamba, T. , Opperman, B. , Ssessanga, N. , Giday, N. M. , Tyalimpi, V. , De Franceschi, G. , Romano, V. , Scotto, C. , Notarpietro, R. , Dovis, F. , Avenant, E. & 11 others Wonnacott, R., Oyeyemi, E., Mahrous, A., Tsidu, G. M., Lekamisy, H., Olwendo, J. O., Sibanda, P., Gogie, T. K., Rabiu, B., De Jong, K. & Adewale, A. Jan 2014 In : Radio Science. 49, 1, p. 19-27

Research output: Contribution to journalArticle

Open Access
File
ionospherics
Global positioning system
Global Positioning System
GPS
Imaging techniques

Method to measure the Stokes parameters of GPS signals

Benton, C. J. & Mitchell, C. N. Jan 2014 In : Radio Science. 49, 1, p. 7-8

Research output: Contribution to journalArticle

Open Access
File
Global Positioning System
Global positioning system
GPS
receivers
Circular polarization
66 Citations

System design for geosynchronous synthetic aperture radar missions

Hobbs, S., Mitchell, C., Forte, B., Holley, R., Snapir, B. & Whittaker, P. 8 May 2014 In : IEEE Transactions on Geoscience and Remote Sensing. 52, 12, p. 7750-7763 14 p.

Research output: Contribution to journalArticle

Open Access
File
Synthetic aperture radar
synthetic aperture radar
Systems analysis
spatial resolution
atmosphere

Why we’re preparing weather forecasts … in space

Mitchell, C. 9 Oct 2014 The Conversation

Research output: Contribution to specialist publicationArticle

Open Access
thunderstorm
freezing
planet
weather
winter
2013
10 Citations

A comparison of the effects of initializing different thermosphere- ionosphere model fields on storm time plasma density forecasts

Chartier, A. T., Jackson, D. R. & Mitchell, C. N. 1 Nov 2013 In : Journal of Geophysical Research: Space Physics. 118, 11, p. 7329-7337 9 p.

Research output: Contribution to journalArticle

Open Access
File
thermosphere
ionosphere
plasma
data assimilation
electron density
12 Citations

An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite

Prikryl, P., Zhang, Y., Ebihara, Y., Ghoddousi-Fard, R., Jayachandran, P. T., Kinrade, J., Mitchell, C. N., Weatherwax, A. T., Bust, G., Cilliers, P. J., Spogli, L., Alfonsi, L., Romano, V., Ning, B., Li, G., Jarvis, M. J., Danskin, D. W., Spanswick, E., Donovan, E. & Terkildsen, M. 2013 In : Annals of Geophysics. 56, 2, p. R0216

Research output: Contribution to journalArticle

Open Access
File
DMSP satellites
dimethylsulfoniopropionate
Global Positioning System
scintillation
aurora
3 Citations

Comparison of temporal fluctuations in the total electron conDtisecunsstions estimates from EISCAT and GPS along the same line of sight

Forte, B., Smith, N. D., Mitchell, C. N., Da Dalt, F., Panicciari, T., Chartier, A. T., Stevanovic, D., Vuckovic, M., Kinrade, J., Tong, J. R., Haggstrom, I. & Turunen, E. 23 Apr 2013 In : Annales Geophysicae. 31, p. 745-753

Research output: Contribution to journalArticle

Open Access
File
line of sight
GPS
electron
estimates
electrons
25 Citations

GPS phase scintillation associated with optical auroral emissions: First statistical results from the geographic South Pole

Kinrade, J., Mitchell, C. N., Smith, N. D., Ebihara, Y., Weatherwax, A. T. & Bust, G. S. May 2013 In : Journal of Geophysical Research: Space Physics. 118, 5, p. 2490-2502 13 p.

Research output: Contribution to journalArticle

GPS
aurora
GNSS
F region
solar activity
9 Citations

GPS scintillations and total electron content climatology in the southern low, middle and high latitude regions

Spogli, L., Alfonsi, L., Cilliers, P. J., Correia, E., De Franceschi, G., Mitchell, C. N., Romano, V., Kinrade, J. & Cabrera, M. A. 2013 In : Annals of Geophysics. 56, 2

Research output: Contribution to journalArticle

climatology
Global Positioning System
tropical regions
polar regions
scintillation
4 Citations

Measuring GNSS ionospheric total electron content at Concordia, and application to L-band radiometers

Romano, V., Macelloni, G., Spogli, L., Brogioni, M., Marinaro, G. & Mitchell, C. N. 2013 In : Annals of Geophysics. 56, 2, R0219

Research output: Contribution to journalArticle

Open Access
File
GNSS
ultrahigh frequencies
radiometers
radiometer
ionospherics
2012
10 Citations

A 12 year comparison of MIDAS and IRI 2007 ionospheric Total Electron Content

Chartier, A. T., Mitchell, C. N. & Jackson, D. R. 1 May 2012 In : Advances in Space Research. 49, 9, p. 1348-1355 8 p.

Research output: Contribution to journalArticle

Open Access
File
Ionosphere
ionospherics
ionospheres
ionosphere
assimilation
1 Citations

Analysis of diurnal double maxima observed above Italy during 1975–1991

Katamzi, Z. T., Smith, N. D., Mitchell, C. N. & Spalla, P. 1 Nov 2012 In : Journal of Atmospheric and Solar-Terrestrial Physics. 89, p. 67-75

Research output: Contribution to journalArticle

Italy
geomagnetic storm
F region
summer
ionosphere
13 Citations

A study of L-band scintillations and total electron content at an equatorial station, Lagos, Nigeria

Adewale, A. O., Oyeyemi, E. O., Adeloye, A. B., Mitchell, C. N., Rose, J. A. R. & Cilliers, P. J. 7 Apr 2012 In : Radio Science. 47, RS2011, RS004846

Research output: Contribution to journalArticle

Open Access
File
Nigeria
Scintillation
ultrahigh frequencies
scintillation
stations

Development of Low-Cost Spaceborne Multi-Frequency GNSS Receiver for Navigation and GNSS Remote Sensing

Unwin, M., Gao, S., de Vos van Steenwijk, R., Jales, P., Maqsood, M., Gommenginger, C., Rose, J., Mitchell, C. & Partington, K. 2012 In : International Journal of Space Science and Engineering.

Research output: Contribution to journalArticle

3 Citations

GPS satellite oscillator faults mimicking ionospheric phase scintillation

Benton, C. & Mitchell, C. Oct 2012 In : GPS Solutions. 16, 4, p. 477-482 6 p.

Research output: Contribution to journalArticle

GPS
effect
32 Citations

Ionospheric scintillation over Antarctica during the storm of 5–6 April 2010

Kinrade, J., Mitchell, C. N., Yin, P., Smith, N., Jarvis, M. J., Maxfield, D. J., Rose, M. C., Bust, G. S. & Weatherwax, A. T. May 2012 In : Journal of Geophysical Research. 117, A5, A05304

Research output: Contribution to journalArticle

File
Scintillation
Antarctic regions
Antarctica
ionospherics
scintillation
2 Citations

New method for tracking the movement of ionospheric plasma

Benton, C. & Mitchell, C. 2012 In : Journal of Geophysical Research. 117, 9, A09317

Research output: Contribution to journalArticle

Open Access
File
ionospherics
plasma generators
Plasmas
plasma
electrons
11 Citations

The use of ionosondes in GPS ionospheric tomography at low latitudes

Chartier, A. T., Smith, N. D., Mitchell, C. N., Jackson, D. R. & Patilongo, P. J. C. Oct 2012 In : Journal of Geophysical Research. 117, A10, A10326

Research output: Contribution to journalArticle

ionosondes
tomography
tropical regions
ionospherics
Tomography
1 Citations

Towards adapting a normal patient database forSPECT brain perfusion imaging

Smith, N. D., Holmes, R. B., Soleimani, M., Evans, M. J., Cade, S. C. & Mitchell, C. N. Jun 2012 In : Inverse Problems. 28, 6, 17 p., 065001

Research output: Contribution to journalArticle

2011
5 Citations

A motion-compensated cone-beam CT using electrical impedance tomography imaging

Pengpan, T., Smith, N. D., Qiu, W., Yao, A., Mitchell, C. N. & Soleimani, M. Jan 2011 In : Physiological Measurement. 32, 1, p. 19-34

Research output: Contribution to journalArticle

Acoustic impedance
Cone-Beam Computed Tomography
Electric Impedance
Tomography
Cones
66 Citations

Bipolar climatology of GPS ionospheric scintillation at solar minimum

Alfonsi, L., Spogli, L., De Franceschi, G., Romano, V., Aquino, M., Dodson, A. & Mitchell, C. N. 2011 In : Radio Science. 46, Rs0d05

Research output: Contribution to journalArticle

Climatology
climatology
Scintillation
ionospherics
scintillation
2 Citations
ionospherics
positioning
Global positioning system
Demonstrations
GPS
20 Citations

GPS scintillation and TEC gradients at equatorial latitudes in April 2006

Alfonsi, L., Spogli, L., Tong, J. R., De Franceschi, G., Romano, V., Bourdillon, A., Huy, M. L. & Mitchell, C. N. 17 May 2011 In : Advances in Space Research. 47, 10, p. 1750-1757 8 p.

Research output: Contribution to journalArticle

Scintillation
ionospherics
scintillation
Global positioning system
GPS
10 Citations

GPS tomography in the polar cap: comparison with ionosondes and in situ spacecraft data

Pokhotelov, D., Jayachandran, P. T., Mitchell, C. N., MacDougall, J. W. & Denton, M. H. Jan 2011 In : GPS Solutions. 15, 1, p. 79-87 9 p.

Research output: Contribution to journalArticle

tomography
GPS
spacecraft
dimethylsulfoniopropionate
plasma
11 Citations

Imaging of 3-D plasmaspheric electron density using GPS to LEO satellite differential phase observations

Spencer, P. S. J. & Mitchell, C. N. Jun 2011 In : Radio Science. 46, 3, 6 p., RS0D04

Research output: Contribution to journalArticle

File
plasmasphere
low Earth orbits
electron density
Carrier concentration
Global positioning system
14 Citations
File
satellite navigation systems
Signal systems
GNSS
Navigation
Satellites

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
15 Citations

Statistical analysis of travelling ionospheric disturbances using TEC observations from geostationary satellites

Katamzi, Z. T., Smith, N. D., Mitchell, C. N., Spalla, P. & Materassi, M. Jan 2011 In : Journal of Atmospheric and Solar-Terrestrial Physics. 74, p. 64-80

Research output: Contribution to journalArticle

traveling ionospheric disturbances
synchronous satellites
geostationary satellite
statistical analysis
ionospheres
6 Citations

The use of ionospheric tomography and elevation masks to reduce the overall error in single-frequency GPS timing applications

Rose, J. A. R., Tong, J. R., Allain, D. J. & Mitchell, C. N. 15 Jan 2011 In : Advances in Space Research. 47, 2, p. 276-288 13 p.

Research output: Contribution to journalArticle

File
Global Positioning System
ionospherics
tomography
Tomography
Global positioning system
10 Citations

Tomographic imaging of the equatorial and low-latitude ionosphere over central-eastern Brazil

Muella, M., de Paula, E. R., Mitchell, C. N., Kintner, P. M., Paes, R. R. & Batista, I. S. 2011 In : Earth Planets and Space. 63, 2, p. 129-138 10 p.

Research output: Contribution to journalArticle

Brazil
tropical regions
ionospheres
ionosphere
electron density
2010
1 Citations

A dual modality of cone beam CT and electrical impedance tomography for lung imaging

Pengpan, T., Mitchell, C. N. & Soleimani, M. 2010 In : Journal of Physics: Conference Series. 224, 1, 4 p., 012026

Research output: Contribution to journalArticle

electrical impedance
lungs
cones
tomography
artifacts
7 Citations
GPS
shell
navigation
ionosphere
electron density
11 Citations
ionosondes
coronal mass ejection
magnetic storms
Tomography
polar regions
1 Citations

Image-model coupling: application to an ionospheric storm

Smith, N. D., Pokhotelov, D., Mitchell, C. N. & Budd, C. 20 Aug 2010 In : Nonlinear Processes in Geophysics. 17, 4, p. 361-369

Research output: Contribution to journalArticle

ionospheric storms
Ionosphere
ionospherics
ionospheres
ionosphere