Dr Ciaran Beggan

BGS Edinburgh

Ciaran Beggan’s Biography

  • 1999 – BSc University College, Dublin, Geology
  • 2000 – MSc University of Edinburgh, Remote Sensing and Image Processing
  • 2001 – Systems Engineer, Selex Airborne Sensors
  • 2004 – MSc University of Heriot Watt, Applied Mathematics
  • 2009 – ongoing:Geophysicist
  • 2009 – PhD University of Edinburgh, Geophysics



Research interests

  • Geomagnetism: Core Field and lithospheric modelling
  • Geomagnetism: Space weather risk and impacts, Geomagnetically Induced Currents

Current projects and collaborations


NERC Open Research Archive — Ciaran Beggan

Google Scholar

Key papers

Beggan, C, Eaton, E, Maume, E, Clarke, E, Williamson, J, and Humphries, T. 2022. Digitizing UK analogue magnetogram records from large geomagnetic storms of the past two centuries, Geoscience Data Journal, Vol. 10 (1), 73-86. doi: 10.1002/gdj3.151

Beggan, C. 2022. Evidence-based uncertainty estimates for the International Geomagnetic Reference Field, Earth Planets and Space, Vol. 17 (74). https://doi.org/10.1186/s40623-022-01572-y

Beggan, C D, Richardson, G S , Baillie, O, Huebert, J, and Thomson, A W P. 2021, Geoelectric field measurement, modelling and validation during geomagnetic storms in the UK, Journal of Space Weather and Space Climate, Vol. 11 (37) doi:10.1051/swsc/2021022

Beggan, C D, Macmillan, S, Brown, W J, and Grindrod, S J. 2021. Quantifying Global and Random Uncertainties in High Resolution Global Geomagnetic Field Models Used for Directional Drilling, SPE Drilling and Completion, Vol. 36 (03), 603-612, SPE-204038-PA. https://doi.org/10.2118/204038-PA

Alken, P, Thebault, E, Beggan, C D, Amit, H, Aubert, J, Baerenzung, J, Bondar, T N, Brown, W J, Califf, S, Chambodut, A, Chulliat, A, Cox, G A, Finlay, C C, Fournier, A, Gillet, N, Grayver, A, Hammer, M D, Holschneider, M, Huder, L, Hulot, G, Jager, T, Kloss, C, Korte, M, Kuang, W, Kuvshinov, A, Langlais, B, Leger, J-M, Lesur,, V, Livermore, P W, Lowes, F J, Macmillan, S, Magnes, W, Mandea, M, Marsal, S, Matzka, J, Metman, M C, Minami, T, Morschhauser, A, Mound, J E, Nair, M Nakano, S, Olsen, N, Pavon-Carrasco, F J, Petrov, V G, Ropp, G, Rother, M, Sabaka, T J, Sanchez, S, Saturnino, D, Schnepf, N R, Shen, X, Stolle, C, Tangborn, A, Toffner-Clausen, L, Toh, H, Torta, J M, Varner, J, Vervelidou, F, Vigneron, P, Wardinski, I, Wicht, J, Woods, A, Yang, Y, Zeren, Z, and Zhou, B. 2021. International Geomagnetic Reference Field: the thirteenth generation, Earth, Planets and Space.  Vol. 73 (49). doi: 10.1186/s40623-020-01288-x

Hammer, M D, Cox, G A, Brown, W J, Beggan, C D, and Finlay, C C. 2021. Geomagnetic Virtual Observatories: monitoring geomagnetic secular variation with the Swarm satellites. Earth Planets Space, Vol. 73 (54). doi:10.1186/s40623-021-01357-9

Metman, M C, Beggan, C D, Livermore, P W, and Mound, J E. 2020. Modelling decadal secular variation with core flow and magnetic diffusion, Earth, Planets and Space, Vol. 72 (149). doi: 10.1186/s40623-020-01193-3

Huebert, J, Beggan, C D, Richardson, G S, Martyn, T, and Thomson, A W P. 2020. Differential magnetometer measurements of geomagnetically induced currents in a complex high voltage network. Space Weather, Vol. 18 (4), e2019SW002421. https://doi.org/10.1029/2019SW002421

Beggan, C D, and Musur, M A. 2019. Is the Madden-Julian Oscillation reliably detectable in Schumann Resonances?, Journal of Atmospheric and Solar-Terrestrial Physics, Vol. 190 (108-116). https://doi.org/10.1016/j.jastp.2019.05.009

Beggan C D, Billingham, L, and E Clarke. 2018. Estimating external magnetic field differences at high geomagnetic latitudes from a single station. Geophysical Prospecting. Vol. 66 (6). doi:10.1111/1365-2478.12641

Beggan C D, and Musur, M. 2018. Observation of Ionospheric Alfvén Resonances at 1–30 Hz and their superposition with the Schumann Resonances. Journal of Geophysical Research: Space Physics, Vol. 123 (5), 4202–4214. doi:10.1029/2018JA025264

Beggan, C D and Marple, S R. 2018. Building a Raspberry Pi school magnetometer network in the UK, Geoscience Communication. Vol. 1, 25-34. doi:10.5194/gc-1-25-2018

Beggan, C D and Whaler, K A. 2018. Ensemble Kalman Filter Analysis of Magnetic Field Models during the CHAMP-Swarm gap, Physics of the Earth and Planetary Interiors.  doi:10.1016/j.pepi.2018.06.002

Kelly, G S, Viljanen, A, Beggan, C D and Thomson, A W P. 2017. Understanding GIC in the UK and French High Voltage Transmission Systems During Severe Magnetic Storms. Space Weather. Vol. 15 (1). doi:10.1002/2016SW001469

Smith, A R A, Beggan, C D, Macmillan, S and Whaler, K A. 2017. Climatology of the auroral electrojets derived from the along-track gradient of magnetic field intensity measured by POGO, Magsat, CHAMP, and Swarm. Space Weather. Vol. 15 (10). doi:10.1002/2017SW001675

Blake, S P, Gallagher, P T, McCauley, J, Jones, A G, Hogg, C, Campanya, J, Beggan, C D, Thomson, A W P, Kelly, G S and Bell, D. 2016. Geomagnetically Induced Currents in the Irish Power Network during Geomagnetic Storms. Space Weather. Vol. 14 (12). doi:10.1002/2016SW001534


  • Geophysical / computational modelling
  • Programming: Matlab, Python, FORTRAN

Professional associations

  • Fellow of the Royal Astronomical Society (RAS)
  • Chair of the IAGA V-MOD group

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