Career

Notable achievements

Academic history

  • 2022–present: STFC Ernest Rutherford Fellow, Northumbria University
  • 2016–2021: Postdoctoral research with Rob Fear, University of Southampton
  • 2015–2016: Postdoctoral research with Caitriona Jackman, University of Southampton
  • 2012–2015: PhD research with Steve Milan, University of Leicester
  • 2007–2011: MPhys in Physics with Astrophysics, University of Leicester

Papers

2024

  1. Denny M Oliveira, James M Weygand, John C Coxon & Eftyhia Zesta (2024). Substorm-time ground dB/dt variations controlled by interplanetary shock impact angles: A statistical study, Space Weather, 22, e2023SW003767. https://doi.org/10.1029/2023SW003767

2023

  1. John C Coxon, Gareth Chisham, Mervyn P Freeman, Colin Forsyth, Maria-Theresia Walach, Kyle R Murphy, Sarah K Vines, Brian J Anderson, Andrew W Smith & Alexandra R Fogg (2023). Extreme Birkeland currents are more likely during geomagnetic storms on the dayside of the Earth, Journal of Geophysical Research: Space Physics, 128, e2023JA031946. https://doi.org/10.1029/2023JA031946

  2. Angeline G Burrell, McArthur Jones Jr, Kate A Zawdie, John C Coxon & Alexa J Halford (2023). Tips for writing a good recommendation letter, Frontiers in Astronomy and Space Sciences, 10. https://doi.org/10.3389/fspas.2023.1114821.

  3. Laura J Fryer, Robert C Fear, Imogen L Gingell, John C Coxon, Minna Palmroth, Sanni Hoilijoki, Pekka Janhunen, Anita Kullen & Paul A Cassak (2023). 3D GUMICS simulations of northward IMF magnetotail structure, Journal of Geophysical Research: Space Physics, 128, e2023JA031317. https://doi.org/10.1029/2023JA031317

2022

  1. John C Coxon, Gareth Chisham, Mervyn P Freeman, Brian J Anderson & Robert C Fear (2022). Distributions of Birkeland current density observed by AMPERE are heavy-tailed or long-tailed, Journal of Geophysical Research: Space Physics, 127, e2021JA029801. https://doi.org/10.1029/2021JA029801

  2. Joseph WB Eggington, John C Coxon, Robert M Shore, Ravindra T Desai, Lars Mejnertsen, Jeremy P Chittenden & Jonathan P Eastwood (2022). Response timescales of the magnetotail current sheet during a geomagnetic storm: Global MHD simulations, Frontiers in Astronomy and Space Sciences, 9, 966164. https://doi.org/10.3389/fspas.2022.966164

2021

  1. John C Coxon, Robert C Fear, Jade A Reidy, Laura J Fryer & James Plank (2021). Hot plasma in the magnetotail lobe shows characteristics consistent with closed field lines trapped in the lobes, Journal of Geophysical Research: Space Physics, 126, e2021JA029516. https://doi.org/10.1029/2021JA029516

  2. Laura J Fryer, Robert C Fear, John C Coxon & Imogen L Gingell (2021). Observations of closed magnetic flux embedded in the lobes during periods of Northward IMF, Journal of Geophysical Research: Space Physics, 126, e2021JA029281. https://doi.org/10.1029/2021JA029281

2020

  1. Mike Lockwood, Mathew J Owens, Luke A Barnard, Clare EJ Watt, Chris J Scott, John C Coxon & Kathryn A McWilliams (2020). Semi‐annual, annual and Universal Time variations in the magnetosphere and in geomagnetic activity: 3. Modelling, Journal of Space Weather and Space Climate, 10, 61. https://doi.org/10.1051/swsc/2020062

  2. Mike Lockwood, Kathryn A McWilliams, Mathew J Owens, Luke A Barnard, Clare EJ Watt, Chris J Scott, Allan R Macneil & John C Coxon (2020). Semi-annual, annual and Universal Time variations in the magnetosphere and in geomagnetic activity: 2. Response to solar wind power input and relationships with solar wind dynamic pressure and magnetospheric flux transport, Journal of Space Weather and Space Climate, 10, 30. https://doi.org/10.1051/swsc/2020033

  3. Mike Lockwood, Mathew J Owens, Luke A Barnard, Carl Haines, Chris J Scott, Kathryn A McWilliams & John C Coxon (2020). Semi-annual, annual and Universal Time variations in the magnetosphere and in geomagnetic activity: 1. Geomagnetic data, Journal of Space Weather and Space Climate, 10, 23. https://doi.org/10.1051/swsc/2020023

  4. Michaela K Mooney, Colin Forsyth, I Jonathan Rae, Gareth Chisham, John C Coxon, Mike S Marsh, David R Jackson, Suzy Bingham & Benoît Hubert (2020). Examining local time variations in the gains and losses of open magnetic flux during substorms, Journal of Geophysical Research: Space Physics, 125, e2019JA027369. https://doi.org/10.1029/2019JA027369

  5. Vladimir B Ovodenko, Maxim V Klimenko, Irina E Zakharenkova, Alexey V Oinats, Daria S Kotova, Alexander V Nikolaev, Ilya V Tyutin, Denis D Rogov, Konstantin G Ratovsky, Dmitriy V Chugunin, Pavel A Budnikov, John C Coxon, Brian J Anderson & Alexander A Chernyshov (2020). Spatial and temporal evolution of different‐scale ionospheric irregularities in Central and East Siberia during the 27–28 May 2017 geomagnetic storm, Space Weather, 18, e2019SW002378. https://doi.org/10.1029/2019SW002378

2019

  1. John C Coxon, Robert M Shore, Mervyn P Freeman, Robert C Fear, Stephen D Browett, Andrew W Smith, Daniel K Whiter & Brian J Anderson (2019), Timescales of Birkeland currents driven by the IMF, Geophysical Research Letters, 46, 7893–7901. https://doi.org/10.1029/2018GL081658

  2. Robert C Fear, John C Coxon & Caitríona M Jackman (2019). The contribution of flux transfer events to Mercury’s Dungey cycle, Geophysical Research Letters, 46, 14239–14246. https://doi.org/10.1029/2019GL085399

  3. Robert M Shore, Mervyn P Freeman, John C Coxon, Evan G Thomas, Jesper W Gjerloev & Nils Olsen (2019), Spatial variation in the responses of the surface external and induced magnetic field to the solar wind, Journal of Geophysical Research: Space Physics, 124, 6195–6211. https://doi.org/10.1029/2019JA026543

  4. Lorenzo Trenchi, John C Coxon, Robert C Fear, Jonathan P Eastwood, Malcolm W Dunlop, Karlheinz J Trattner, Daniel J Gershman, Daniel B Graham, Yuri Khotyaintsev & Benoit Lavraud (2019). Signatures of magnetic separatrices at the borders of a crater flux transfer event connected to an active X‐line, Journal of Geophysical Research: Space Physics, 124, 8600–8616. https://doi.org/10.1029/2018JA026126

2018

  1. John C Coxon, Steve E Milan & Brian J Anderson (2018). A review of Birkeland current research using AMPERE, in Electric Currents in Geospace and Beyond (eds Andreas Keiling, Octav Marghitu & Michael Wheatland). https://doi.org/10.1002/9781119324522.ch16

  2. John C Coxon, Mervyn P Freeman, Caitríona M Jackman, Colin Forsyth, I Jonathan Rae & Robert C Fear (2018). Tailward propagation of magnetic energy density variations with respect to substorm onset times, Journal of Geophysical Research: Space Physics, 123, 4741–4754. https://doi.org/10.1029/2017JA025147.

  3. Colin Forsyth, Mark Shortt, John C Coxon, I Jonathan Rae, Mervyn P Freeman, Nadine ME Kalmoni, Caitríona M Jackman, Brian J Anderson, Steve E Milan & Angeline G Burrell (2018). Seasonal and temporal variations of field‐aligned currents and ground magnetic deflections during substorms, Journal of Geophysical Research: Space Physics, 123, 2696–2713. https://doi.org/10.1002/2017JA025136.

  4. German Farinas Perez, Flavia R Cardoso, David G Sibeck, Walter D Gonzalez, Gabor Facsko, John C Coxon & Asher D Pembroke (2018). Generation mechanism for interlinked flux tubes on the magnetopause, Journal of Geophysical Research: Space Physics, 123, 1337–1355. https://doi.org/10.1002/2017JA024664.

  5. Steve E Milan, Jennifer A Carter, Harneet Sangha, Karl M Laundal, Nikolai Østgaard, Paul Tenfjord, Jone P Reistad, Kristian Snekvik, John C Coxon, Haje Korth & Brian J Anderson (2018), Timescales of dayside and nightside field‐aligned current response to changes in solar wind‐magnetosphere coupling, Journal of Geophysical Research: Space Physics, 123, 7307–7319. https://doi.org/10.1029/2018JA025645

  6. Andrew W Smith, Caitríona M Jackman, Christopher M Frohmaier, John C Coxon, James A Slavin & Robert C Fear (2018). Evaluating single‐spacecraft observations of planetary magnetotails with simple Monte Carlo simulations: 1. Spatial distributions of the neutral line, Journal of Geophysical Research: Space Physics, 123, 10109–10123. https://doi.org/10.1029/2018JA025958

  7. Andrew W Smith, Caitríona M Jackman, Christopher M Frohmaier, Robert C Fear, James A Slavin, John C Coxon (2018). Evaluating single spacecraft observations of planetary magnetotails with simple Monte Carlo simulations: 2. Magnetic flux rope signature selection effects, Journal of Geophysical Research: Space Physics, 123, 10124–10138. https://doi.org/10.1029/2018JA025959

2017

  1. John C Coxon, I Jonathan Rae, Colin Forsyth, Caitríona M Jackman, Robert C Fear & Brian J Anderson (2017). Birkeland currents during substorms: Statistical evidence for intensification of Regions 1 and 2 currents after onset and a localized signature of auroral dimming, Journal of Geophysical Research: Space Physics, 122, 6455–6468. https://doi.org/10.1002/2017JA023967.

  2. Robert C Fear, Lorenzo Trenchi, John C Coxon & Steve E Milan (2017). How much flux does a flux transfer event transfer?, Journal of Geophysical Research: Space Physics, 122, 12,310–12,327. https://doi.org/10.1002/2017JA024730.

  3. Steve E Milan, Lasse BN Clausen, John C Coxon, Jennifer A Carter, Maria-Theresia Walach, Karl M Laundal, Nikolai Østgaard, Paul Tenfjord, Jone P Reistad, Kristian Snekvik, Haje Korth & Brian J Anderson (2017). Overview of solar wind-magnetosphere-ionosphere-atmosphere coupling and the generation of magnetospheric currents, Space Science Reviews, 206, 547–573. https://doi.org/10.1007/s11214-017-0333-0.

2016

  1. John C Coxon, Caitríona M Jackman, Mervyn P Freeman, Colin Forsyth & I Jonathan Rae (2016). Identifying the magnetotail lobes with Cluster magnetometer data, Journal of Geophysical Research: Space Physics, 121, 1436–1446. https://doi.org/10.1002/2015JA022020.

  2. John C Coxon, Steve E Milan, Jennifer A Carter, Lasse BN Clausen, Brian J Anderson & Haje Korth (2016). Seasonal and diurnal variations in AMPERE observations of the Birkeland currents compared to modeled results, Journal of Geophysical Research: Space Physics, 121, 4027–4040. https://doi.org/10.1002/2015JA022050.

  3. Jennifer A Carter, Steve E Milan, John C Coxon, Maria-Theresia Walach & Brian J Anderson (2016). Average field-aligned current configuration parameterized by solar wind conditions, Journal of Geophysical Research: Space Physics, 121, 1294–1307. https://doi.org/10.1002/2015JA021567.

  4. Colin Forsyth, I Jonathan Rae, Kyle R Murphy, Mervyn P Freeman, Chia-Lin Huang, Harlan E Spence, Alexander J Boyd, John C Coxon, Caitríona M Jackman, Nadine ME Kalmoni & Clare EJ Watt (2016). What effect do substorms have on the content of the radiation belts?, Journal of Geophysical Research: Space Physics, 121, 6292–6306. https://doi.org/10.1002/2016JA022620.

  5. Karl M Laundal, Ingrid Cnossen, Steve E Milan, Stein E Haaland, John C Coxon, Nicholas M Pedatella, Matthias Förster & Jone P Reistad (2016). North–South asymmetries in Earth’s magnetic field: Effects on high-latitude geospace, Space Science Reviews, 206, 225–257. https://doi.org/10.1007/s11214-016-0273-0.

2015

  1. Colin Forsyth, I Jonathan Rae, John C Coxon, Mervyn P Freeman, Caitríona M Jackman, Jesper Gjerloev & Andrew N Fazakerley (2015). A new technique for determining Substorm Onsets and Phases from H-Indices of the Electrojet (SOPHIE), Journal of Geophysical Research: Space Physics, 120, 10,592–10,606. https://doi.org/10.1002/2015JA021343.

2014

  1. John C Coxon, Steve E Milan, Lasse BN Clausen, Brian J Anderson & Haje Korth (2014a). The magnitudes of the regions 1 and 2 Birkeland currents observed by AMPERE and their role in solar wind-magnetosphere-ionosphere coupling, Journal of Geophysical Research: Space Physics, 119, 9804–9815. https://doi.org/10.1002/2014JA020138.

  2. John C Coxon, Steve E Milan, Lasse BN Clausen, Brian J Anderson & Haje Korth (2014b). A superposed epoch analysis of the regions 1 and 2 Birkeland currents observed by AMPERE during substorms, Journal of Geophysical Research: Space Physics, 119, 9834–9846. https://doi.org/10.1002/2014JA020500.

  3. Colin Forsyth, Clare EJ Watt, I Jonathan Rae, Andrew N Fazakerley, Nadine ME Kalmoni, Mervyn P Freeman, Peter D Boakes, Rumi Nakamura, Iannis Dandouras, Lynn M Kistler, Caitríona M Jackman, John C Coxon & Chris Carr (2014). Increases in plasma sheet temperature with solar wind driving during substorm growth phases, Geophysical Research Letters, 41, 8713–8721. https://doi.org/10.1002/2014GL062400.

  4. Victor A Sergeev, Alexander V Nikolaev, Marina V Kubyshkina, Nikolai A Tsyganenko, Howard J Singer, Juan V Rodriguez, Vassilis Angelopoulos, Rumi Nakamura, Steve E Milan, John C Coxon, Brian J Anderson & Haje Korth (2014). Event study combining magnetospheric and ionospheric perspectives of the substorm current wedge modeling, Journal of Geophysical Research: Space Physics, 119, 9714–9728. https://doi.org/10.1002/2014JA020522.

2013

  1. Lasse BN Clausen, Joseph BH Baker, J Michael Ruohoniemi, Steve E Milan, John C Coxon, Simon Wing, Shin-ichi Ohtani & Brian J Anderson (2013). Temporal and spatial dynamics of the regions 1 and 2 Birkeland currents during substorms, Journal of Geophysical Research: Space Physics, 118, 3007–3016. https://doi.org/10.1002/jgra.50288.

  2. Lasse BN Clausen, Steve E Milan, Joseph BH Baker, J Michael Ruohoniemi, Karl-Heinz Glassmeier, John C Coxon & Brian J Anderson (2013). On the influence of open magnetic flux on substorm intensity: ground- and space-based observations, Journal of Geophysical Research: Space Physics, 118, 2958–2969. https://doi.org/10.1002/jgra.50308.

Thesis

Other references

  1. Michael W Liemohn, McArthur Jones Jr, Xochitl Blanco-Cano, John C Coxon, Alexa J Halford & Chigomezyo Ngwira (2023). Editorial: Driving towards a more diverse space physics research community—perspectives, initiatives, strategies, and actions, Frontiers in Astronomy and Space Sciences, 10, https://doi.org/10.3389/fspas.2023.1292058.

  2. John C Coxon, Anasuya Aruliah, Sarah N Bentley, Robert M Shore (2022). RAS Specialist Discussion Meeting report, Astronomy & Geophysics, 63(1), 30–34, https://doi.org/10.1093/astrogeo/atac011.

  3. Angeline G Burrell, McArthur Jones Jr, Alexa J Halford, Kate A Zawdie, John C Coxon (2021). Bypassing the bias, Astronomy & Geophysics, 62(5), 28–29, https://doi.org/10.1093/astrogeo/atab090.

  4. John C Coxon & Sebastien de Larquier (2020), johncoxon/tsyganenko: v2020.0.0, https://doi.org/10.5281/zenodo.3937277.

  5. John C Coxon, Jasmine Kaur Sandhu, Gabrielle Provan & James Wild (2018). Public engagement with MIST science, Astronomy & Geophysics, 59(6), 29–31. https://doi.org/10.1093/astrogeo/aty276.

  6. Jasmine Kaur Sandhu, Georgina A Graham, Sarah N Bentley & John C Coxon (2018). Autumn MIST 2017, Astronomy & Geophysics, 59(2), 26–29. https://doi.org/10.1093/astrogeo/aty090.

  7. Sarah V Badman, John C Coxon, Katie Raymer & Arianna M Sorba (2017). London MIST 2016, Astronomy & Geophysics, 58(5). 32–34. https://doi.org/10.1093/astrogeo/atx175.

  8. John C Coxon, Jasmine Kaur Sandhu, Nadine ME Kalmoni, Rebecca L Gray, Joe Kinrade & Ian McCrea (2016). Autumn MIST 2015, Astronomy & Geophysics, 57(3), 21–24. https://doi.org/10.1093/astrogeo/atw099.