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Bergin, A., Chapman, S. C., Watkins, N. W. ORCID: 0000-0003-4484-6588, Moloney, N. R. ORCID: 0009-0000-6035-8053 and Gjerloev, J. W. (2023) Extreme event statistics in Dst, SYM-H, and SMR geomagnetic indices. Space Weather, 21 (3). ISSN 1542-7390
Bergin, A., Chapman, S. C., Moloney, N. R. ORCID: 0009-0000-6035-8053 and Watkins, N. W. ORCID: 0000-0003-4484-6588 (2022) Variation of geomagnetic index empirical distribution and burst statistics across successive solar cycles. Journal of Geophysical Research: Space Physics, 127 (1). ISSN 2169-9380
Chapman, S. C., McIntosh, S. W., Leamon, R. J. and Watkins, N. W. ORCID: 0000-0003-4484-6588 (2021) The sun's magnetic (Hale) cycle and 27 day recurrences in the aa Geomagnetic Index. Astrophysical Journal, 917 (2). ISSN 0004-637X
Hnat, B., Chapman, S. C. and Watkins, N. W. ORCID: 0000-0003-4484-6588 (2021) Magnetic topology of actively evolving and passively convecting structures in the turbulent solar wind. Physical Review Letters, 126 (12). ISSN 0031-9007
Chapman, S. C., McIntosh, S. W., Leamon, R. J. and Watkins, N. W. ORCID: 0000-0003-4484-6588 (2020) Quantifying the solar cycle modulation of extreme space weather. Geophysical Research Letters, 47 (11). ISSN 0094-8276
Chapman, S. C., Murphy, E. J., Stainforth, D. A. ORCID: 0000-0001-6476-733X and Watkins, N. W. ORCID: 0000-0003-4484-6588 (2020) Trends in winter warm spells in the central England temperature record. Journal of Applied Meteorology and Climatology, 59 (6). 1069 - 1076. ISSN 1558-8424
Watkins, N. W. ORCID: 0000-0003-4484-6588 (2019) Mandelbrot's stochastic time series models. Earth and Space Science, 6 (11). 2044 - 2056. ISSN 2333-5084