John Coxon

Postdoctoral Research Associate at the University of Southampton

Publications in 2020

  1. Lockwood, M., K. A. McWilliams, M. J. Owens, L. A. Barnard, C. E. Watt, C. J. Scott, A. R. Macneil, J. 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. J. Space Weather Space Clim. doi:10.1051/swsc/2020033

  2. Lockwood, M., M. J. Owens, L. A. Barnard, C. Haines, C. J. Scott, K. A. McWilliams and J. C. Coxon (2020). Semi-annual, annual and Universal Time variations in the magnetosphere and in geomagnetic activity: 1. Geomagnetic data. J. Space Weather Space Clim., doi:10.1051/swsc/2020023

  3. Ovodenko, V. B., M. V. Klimenko, I. E. Zakharenkova, A. V. Oinats, D. S. Kotova, A. V. Nikolaev, I. V. Tyutin, D. D. Rogov, K. G. Ratovsky, D. V. Chugunin, P. A. Budnikov, J. C. Coxon, B. J. Anderson, A. 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. doi:10.1029/2019SW002378

  4. Mooney, M. K., C. Forsyth, I. J. Rae, G. Chisham, J. C. Coxon, M. S. Marsh, D. R. Jackson, S. Bingham, B. Hubert (2020). Examining local time variations in the gains and losses of open magnetic flux during substorms. J. Geophys. Res. Space Physics, 125, e2019JA027369. doi:10.1029/2019JA027369

Publications in 2019

  1. Fear, R. C., J. C. Coxon, C. M. Jackman (2019). The contribution of flux transfer events to Mercury’s Dungey cycle. Geophys. Res. Lett., 46, 14239–14246. doi:10.1029/2019GL085399

  2. Trenchi, L., J. C. Coxon, R. C. Fear, J. P. Eastwood, M. W. Dunlop, K. J. Trattner, D. J. Gershman, D. B. Graham, Yu. Khotyaintsev, B. Lavraud (2019). Signatures of magnetic separatrices at the borders of a crater flux transfer event connected to an active X‐line. J. Geophys. Res. Space Physics, 124, 8600–8616. doi:10.1029/2018JA026126

  3. Coxon, J. C., R. M. Shore, M. P. Freeman, R. C. Fear, S. D. Browett, A. W. Smith, D. K. Whiter, B. J. Anderson (2019), Timescales of Birkeland currents driven by the IMF. Geophysical Research Letters, 46. doi:10.1029/2018GL081658

  4. Shore, R. M., M. P. Freeman, J. C. Coxon, E. G. Thomas, J. W. Gjerloev, and N. 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. doi:10.1029/2019JA026543

Publications in 2018

  1. Coxon, J. C., S. E. Milan, and B. J. Anderson (2018). A review of Birkeland current research using AMPERE, in Electric Currents in Geospace and Beyond (eds A. Keiling, O. Marghitu and M. Wheatland). doi:10.1002/9781119324522.ch16

  2. Coxon, J. C., M. P. Freeman, C. M. Jackman, C. Forsyth, I. J. Rae, and R. 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. doi:10.1029/2017JA025147.

  3. Farinas Perez G., F. R. Cardoso, D. G. Sibeck, W. D. Gonzalez, G. Facsko, J. C. Coxon, and A.D. Pembroke (2018). Generation mechanism for interlinked flux tubes on the magnetopause, Journal of Geophysical Research: Space Physics, 123. doi:10.1002/2017JA024664.

  4. Forsyth, C., M. Shortt, J. C. Coxon, I. J. Rae, M. P. Freeman, N. M. E. Kalmoni, et al. (2018). Seasonal and temporal variations of field‐aligned currents and ground magnetic deflections during substorms, Journal of Geophysical Research: Space Physics, 123. doi:10.1002/2017JA025136.

  5. Milan, S. E., J. A. Carter, H. Sangha, K. Laundal, N. Østgaard, P. Tenfjord, J. Reistad, K. Snekvik, J. C. Coxon, H. Korth, and B. J. Anderson (2018), Timescales of dayside and nightside field‐aligned current response to changes in solar wind‐magnetosphere coupling, J. Geophys. Res. Space Physics, 123. doi:10.1029/2018JA025645

  6. Smith, A. W., C. M. Jackman, C. M. Frohmaier, J. C. Coxon, J. A. Slavin, and R. C. Fear (2018). Evaluating single‐spacecraft observations of planetary magnetotails with simple Monte Carlo simulations: 1. Spatial distributions of the neutral line, J. Geophys. Res. Space Physics, 123, 10109–10123. doi:10.1029/2018JA025958

  7. Smith, A. W., C. M. Jackman, C. M. Frohmaier, R. C. Fear, J. A. Slavin, and J. C. Coxon (2018). Evaluating single spacecraft observations of planetary magnetotails with simple Monte Carlo simulations: 2. Magnetic flux rope signature selection effects, J. Geophys. Res. Space Physics, 123, 10124–10138. doi:10.1029/2018JA025959

Publications in 2017

  1. Coxon, J. C., I. J. Rae, C. Forsyth, C. M. Jackman, R. C. Fear, and B. 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. doi:10.1002/2017JA023967.

  2. Fear, R. C., Trenchi, L., Coxon, J. C., and Milan, S. E. (2017). How much flux does a flux transfer event transfer? J. of Geophys. Res. Space Physics, 122, 12,310–12,327. doi:10.1002/2017JA024730.

  3. Milan, S. E., L. B. N. Clausen, J. C. Coxon, J. A. Carter, M.-T. Walach, K. Laundal, N. Østgaard, P. Tenfjord, J. Reistad, K. Snekvik, H. Korth, B. J. Anderson (2017). Overview of solar wind-magnetosphere-ionosphere-atmosphere coupling and the generation of magnetospheric currents, Space Science Reviews. doi:10.1007/s11214–017–0333–0.

Publications in 2016

  1. Carter, J. A., S. E. Milan, J. C. Coxon, M.-T. Walach, and B. J. Anderson (2016). Average field-aligned current configuration parameterized by solar wind conditions, Journal of Geophysical Research: Space Physics, 121, 1294–1307. doi:10.1002/2015JA021567.

  2. Coxon, J. C., C. M. Jackman, M. P. Freeman, C. Forsyth and I. J. Rae (2016). Identifying the magnetotail lobes with Cluster magnetometer data, Journal of Geophysical Research: Space Physics. doi:10.1002/2015JA022020.

  3. Coxon, J. C., S. E. Milan, J. A. Carter, L. B. N. Clausen, B. J. Anderson, and H. Korth (2016). Seasonal and diurnal variations in AMPERE observations of the Birkeland currents compared to modeled results, Journal of Geophysical Research: Space Physics, 121. doi:10.1002/2015JA022050.

  4. Forsyth, C., I. J. Rae, K. R. Murphy, M. P. Freeman, C.-L. Huang, H. E. Spence, A. J. Boyd, J. C. Coxon, C. M. Jackman, N. M. E. Kalmoni and C. E. J. Watt (2016). What effect do substorms have on the content of the radiation belts?, Journal of Geophysical Research: Space Physics, 121. doi:10.1002/2016JA022620.

  5. Laundal, K. M., I. Cnossen, S. E. Milan, S. E. Haaland, J. C. Coxon, N. M. Pedatella, M. Förster, J. P. Reistad (2016). North–South Asymmetries in Earth’s Magnetic Field: Effects on High-Latitude Geospace, Space Science Reviews. doi:10.1007/s11214–016–0273–0.

Publications in 2015

  1. Forsyth, C., I. J. Rae, J. C. Coxon, M. P. Freeman, C. M. Jackman, J. Gjerloev and A. 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. doi:10.1002/2015JA021343.

Publications in 2014

  1. Coxon, J. C., S. E. Milan, L. B. N. Clausen, B. J. Anderson and H. 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. doi:10.1002/2014JA020138.

  2. Coxon, J. C., S. E. Milan, L. B. N. Clausen, B. J. Anderson and H. 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. doi:10.1002/2014JA020500.

  3. Forsyth, C., C.E.J. Watt, I.J. Rae, A.N. Fazakerley, N.M.E. Kalmoni, M. P. Freeman, P.D. Boakes, R. Nakamura, I. Dandouras, L.M. Kistler, C.M. Jackman, J.C. Coxon and C. Carr (2014). Increases in plasma sheet temperature with solar wind driving during substorm growth phases, Geophys. Res. Lett. doi:10.1002/2014GL062400.

  4. Sergeev, V. A., A. V. Nikolaev, M. V. Kubyshkina, N. A. Tsyganenko, H. J. Singer, J. V. Rodriguez, V. Angelopoulos, R. Nakamura, S. E. Milan, J. C. Coxon, B. J. Anderson and H. Korth (2014). Event study combining magnetospheric and ionospheric perspectives of the substorm current wedge modeling, Journal of Geophysical Research: Space Physics. doi:10.1002/2014JA020522.

Publications in 2013

  1. Clausen, L. B. N., J. B. H. Baker, J. M. Ruohoniemi, S. E. Milan, J. C. Coxon, S. Wing, S. Ohtani, and B. J. Anderson (2013). Temporal and spatial dynamics of the regions 1 and 2 Birkeland currents during substorms, Journal of Geophysical Research: Space Physics, 118. doi:10.1002/jgra.50288.

  2. Clausen, L. B. N., S. E. Milan, J. B. H. Baker, J. M. Ruohoniemi, K.-H. Glassmeier, J. C. Coxon, and B. 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. doi:10.1002/jgra.50308.

Thesis

  1. Coxon, J. C. (2015). The role of Birkeland currents in the Dungey Cycle, PhD thesis, University of Leicester, Leicester, UK. hdl:2381/32438.

Unreviewed publications

  1. Coxon, J. C. and S. de Larquier (2020), johncoxon/tsyganenko: v2020.0.0, doi:10.5281/zenodo.3937277

  2. Coxon, J. C., J. K. Sandhu, G. Provan, and J. Wild (2018), Public engagement with MIST science, Astronomy & Geophysics, 59(6), 29–31. doi:10.1093/astrogeo/aty276

  3. Coxon, J. C., J. K. Sandhu, G. Provan, J. Wild (2018). Public engagement with MIST science, Astronomy & Geophysics, 59(6). doi:10.1093/astrogeo/aty276.

  4. Sandhu, J., G. A. Graham, S. N. Bentley, and J. C. Coxon (2018). Autumn MIST 2017, Astronomy & Geophysics, 59(2). doi:10.1093/astrogeo/aty090.

  5. Badman, S. V., J. C. Coxon, K. Raymer, and A. M. Sorba (2017). London MIST 2016, Astronomy & Geophysics, 58(5). 32–34. doi:10.1093/astrogeo/atx175.

  6. Coxon, J. C., J. K. Sandhu, N. M. E. Kalmoni, R. L. Gray, J. Kinrade, and I. McCrea (2016). Autumn MIST 2015, Astronomy & Geophysics, 57(3). doi:10.1093/astrogeo/atw099.