Geomagnetic Field Researcher
My research career to date has spanned both the industry and academic sectors. After gaining my BSc in Geophysics (minor in Physics) from the University of Liverpool in 2007, I worked for 2 years for GETECH in Leeds. My work at GETECH comprised 6 months’ processing shiptrack gravity/magnetic data, and 1.5 years of working in a small R&D team to determine global Curie depth estimates from aeromagnetic data. I left GETECH in 2009 to start my PhD at the University of Edinburgh, where I focused on methods for separating external magnetic fields from internal fields in magnetic data, with a specific emphasis on constellation satellite missions. I started my postdoctoral research at BAS in 2013.
Summary of research interests:
– Ionospheric electric fields
– Effect of magnetic fields external to the Earth’s surface on measurements of the field internal to the Earth.
Summary of practical aspects of my research:
– Geophysical data analysis and interpretation.
– Independent and team-led scientific research.
– Mathematical model development.
– Communication of science via publications, conferences and outreach activities.
Brief summary of NERC grant: NE/J020796/1, detailing my research at BAS to date:
My research at BAS, under the supervision of Mervyn Freeman, began with the aim of creating of the world’s first reanalysis model of the external components of Earth’s magnetic field over an 11-year solar cycle. To achieve this, we applied the method of Empirical Orthogonal Function analysis to SuperMAG data (an archive of magnetic field measurements at 1 min resolution from 1980 to present from around 300 magnetometers scattered around the globe). The method has been successful, answering the original research questions. We have decomposed the measured magnetic signal into a hierarchy of temporally-varying spatial patterns, recognisable as the different component circuits of the ionospheric and magnetospheric electrical currents. With this approach, the dominant magnetic field components are resolved at unprecedented spatial and temporal resolution. The findings of this study offer answers to long-standing open questions in a broad range of electromagnetic and upper atmospheric research fields.
NERC grant NE/J020796/1 is being delivered jointly by researchers at BAS and Lancaster University.
I am presently contributing to the proceedings of the ISSI workshop ‘Earth’s Magnetic Field: Understanding Sources from the Earth’s Interior and its Environment’.
Shore, R. M., Whaler, K. A., Macmillan, S., Beggan, C., Olsen, N., Spain, T., & Aruliah, A. (2013). Ionospheric midlatitude electric current density inferred from multiple magnetic satellites. Journal of Geophysical Research: Space Physics, 118(9), 5813-5829.
Shore, Robert. (2018) The effect of the solar wind on the ionosphere. Astronomy & Geophysics, 59. 19-21. 10.1093/astrogeo/aty273
Shore, R.M., Freeman, M.P., Gjerloev, J.W.. (2018) An empirical orthogonal function reanalysis of the northern polar external and induced magnetic field during solar cycle 23. Journal of Geophysical Research, 123. 781-795. 10.1002/2017JA024420
Thébault, E., Lesur, V., Kauristie, K., Shore, R.. (2017) Magnetic field data correction in space for modelling the lithospheric magnetic field. Space Science Reviews, 206. 191-223. doi:10.1007/s11214-016-0309-5
Finlay, C. C., Lesur, V., Thébault, E., Vervelidou, F., Morschhauser, A., Shore, R.. (2017) Challenges handling magnetospheric and ionospheric signals in internal geomagnetic field modelling. Space Science Reviews, 206. 157-189. doi:10.1007/s11214-016-0285-9
Shore, R.M., Freeman, M.P., Wild, J.A., Gjerloev, J.W.. (2017) A high-resolution model of the external and induced magnetic field at the Earth’s surface in the northern hemisphere. Journal of Geophysical Research: Space Physics, 122. 2440-2454. 10.1002/2016JA023682
Shore, R.M., Whaler, K.A., Macmillan, S., Beggan, C., Velimsky, J., Olsen, N.. (2016) Decadal period external magnetic field variations determined via eigenanalysis. Journal of Geophysical Research: Space Physics, 121. 5172-5184. 10.1002/2015JA022066