Journal Article

Bergin, Aisling, Chapman, Sandra C., Watkins, Nicholas W., Moloney, N. R. and Gjerloev, J. W. (2023) Extreme event statistics in Dst, SYM‐H, and SMR geomagnetic indices. Space Weather, 21 (3). e2022SW003304. doi:10.1029/2022sw003304 ISSN 1542-7390.

Chapman, Sandra C. (2023) Charting the solar cycle. Frontiers in Astronomy and Space Sciences, 9 . 1037096. doi:10.3389/fspas.2022.1037096 ISSN 2296-987X.

Reman, Bernard C. G., Dendy, Richard O., Igami, Hiroe, Akiyama, Tsuyoshi, Salewski, Mirko, Chapman, Sandra C., Cook, James W. S., Inagaki, Shigeru, Saito, Kenji, Seki, Ryosuke, Toida, Mieko, Kim, Minho, Thatipamula, Shekar G. and Yun, Gunsu S. (2022) First observation and interpretation of spontaneous collective radiation from fusion-born ions in a stellarator plasma. Plasma Physics and Controlled Fusion, 64 (8). 085008. doi:10.1088/1361-6587/ac7892 ISSN 0741-3335.

Bergin, Aisling, Chapman, Sandra C., Moloney, N. R. and Watkins, Nicholas W. (2022) Variation of geomagnetic index empirical distribution and burst statistics across successive solar cycles. Journal of Geophysical Research: Space Physics, 127 (1). e2021JA029986. doi:10.1029/2021ja029986 ISSN 2169-9380.

Leamon, Robert J., McIntosh, Scott W., Chapman, Sandra C. and Watkins, Nicholas W. (2021) Response to “Limitations in the Hilbert transform approach to locating solar cycle terminators” by R. Booth. Solar Physics, 296 (10). 151. doi:10.1007/s11207-021-01897-z ISSN 0038-0938.

Chapman, Sandra C., McIntosh, S. W., Leamon, R. J. and Watkins, Nicholas W. (2021) The Sun’s magnetic (Hale) cycle and 27 day recurrences in the aa geomagnetic index. Astrophysical Journal, 917 (2). 54. doi:10.3847/1538-4357/ac069e ISSN 0004-637X.

Reman, B. C. G., Dendy, R. O., Akiyama, T. , Chapman, Sandra C., Cook, James William S., Igami, H., Inagaki, S., Saito, K., Seki, R., Kim, M.H., Thatipamula, S.G. and Yun, G.S. (2021) Density dependence of ion cyclotron emission from deuterium plasmas in the large helical device. Nuclear Fusion, 61 (6). 066023. doi:10.1088/1741-4326/abf661 ISSN 0029-5515.

Orr, L., Chapman, Sandra C., Gjerloev, J. W. and Guo, W. (2021) Network community structure of substorms using SuperMAG magnetometers. Nature Communications, 12 (1). 1842. doi:10.1038/s41467-021-22112-4 ISSN 2041-1723.

Calel, Raphael, Chapman, Sandra C., Stainforth, David A. and Watkins, Nicholas W. (2020) Temperature variability implies greater economic damages from climate change. Nature Communications, 11 (1). 5028. doi:10.1038/s41467-020-18797-8 ISSN 2041-1723.

Chapman, Sandra C., Murphy, E. J., Stainforth, David A. and Watkins, Nicholas W. (2020) Trends in winter warm spells in the central England temperature record. Journal of Applied Meteorology and Climatology, 59 (6). doi:10.1175/JAMC-D-19-0267.1 ISSN 1558-8424.

Bergin, Aisling, Chapman, Sandra C. and Gjerloev, J. W. (2020) AE, D ST and their SuperMAG Counterparts : the effect of improved spatial resolution in geomagnetic indices. Journal of Geophysical Research: Space Physics, 125 (5). e2020JA027828. doi:10.1029/2020ja027828 ISSN 2169-9402.

Leamon, Robert J., McIntosh, Scott W., Chapman, Sandra C. and Watkins, Nicholas W. (2020) Timing terminators : forecasting sunspot cycle 25 onset. Solar Physics, 295 (2). doi:10.1007/s11207-020-1595-3 ISSN 1573-093X.

Chapman, Sandra C., Horne, R. B. and Watkins, Nicholas W. (2020) Using the aa index over the last 14 solar cycles to characterize extreme geomagnetic activity. Geophysical Research Letters, 47 (3). e2019GL08652. doi:10.1029/2019GL086524 ISSN 0094-8276.

Chapman, Sandra C., McIntosh, S. W., Leamon, R. J. and Watkins, Nicholas W. (2020) Quantifying the solar cycle modulation of extreme space weather. Geophysical Research Letters, 47 (11). doi:10.1029/2020GL087795 ISSN 0094-8276.

Chapman, Benjamin, Dendy, R. O., Chapman, Sandra C., McClements, K. G., Yun, G. S., Thatipamula, S. G. and Kim, M. H. (2019) Interpretation of suprathermal emission at deuteron cyclotron harmonics from deuterium plasmas heated by neutral beam injection in the KSTAR tokamak. Nuclear Fusion, 59 (10). 106021. doi:10.1088/1741-4326/ab35a7 ISSN 0029-5515.

Reman, Bernard Charles G, Dendy, Richard, Akiyama, T., Chapman, Sandra C., Cook, J. W. S., Igami, H., Inagaki, S., Saito, K. and Yun, G. S. (2019) Interpretating observations of ion cyclotron emission from Large Helical Device plasmas with beam-injected ion populations. Nuclear Fusion, 59 (9). 096013. doi:10.1088/1741-4326/ab2ca2 ISSN 0029-5515.

Orr, Lois, Chapman, Sandra C. and Gjerloev, J. W. (2019) Directed network of substorms using SuperMAG ground‐based magnetometer data. Geophysical Research Letters . doi:10.1029/2019gl082824 ISSN 1944-8007.

Chapman, Sandra C., Watkins, N. W. and Stainforth, D. A. (2019) Warming Trends in Summer Heatwaves. Geophysical Research Letters, 46 (3). pp. 1634-1640. doi:10.1029/2018GL081004 ISSN 0094-8276.

Ochoukov, R., Bilato, R., Bobkov, V., Chapman, B., Chapman, S.C., Dendy, R.O., Dunne, M., Faugel, H., García-Muñoz, M., Geiger, B., Kallenbach, A., Kappatou, A., McClements, K.G., Moseev, D., Nielsen, S., Rasmussen, J., Schneider, P., Weiland, M. and Noterdaeme, J.-M. (2019) Core plasma ion cyclotron emission driven by fusion-born ions. Nuclear Fusion, 59 (1). 014001. doi:10.1088/1741-4326/aaebb0 ISSN 0029-5515.

Chapman, Sandra C., Watkins, Nicholas W. and Stainforth, David A. (2019) Warming trends in summer heatwaves. Geophysical Research Letters, 46 . doi:10.1029/2018GL081004 ISSN 0094-8276.

Chapman, Sandra C., Lang, Peter Thomas, Dendy, R. O., Watkins, Nicholas W., Dunne, Mike G and Giannone, Louis (2018) Intrinsic ELMing in ASDEX Upgrade and global control system-plasma self-entrainment. Nuclear Fusion, 58 (12). 126003. doi:10.1088/1741-4326/aadd1c ISSN 1741-4326.

Tindale, Elizabeth, Chapman, Sandra C., Moloney, N. R. and Watkins, Nicholas W. (2018) The dependence of solar wind burst size on burst duration and its invariance across solar cycles 23 and 24. Journal of Geophysical Research: Space Physics, 123 (9). pp. 7196-7210. doi:10.1029/2018JA025740 ISSN 2169-9402.

Chapman, Sandra C., Watkins, Nicholas W. and Tindale, Elizabeth (2018) Reproducible aspects of the climate of space weather over the last five solar cycles. Space Weather, 16 (8). pp. 1128-1142. doi:10.1029/2018SW001884 ISSN 1542-7390.

Chapman, Benjamin, Dendy, R. O., Chapman, Sandra C., McClements, K. G., Yun, G., Thatipamula, S. G. and Kim, M. H. (2018) Nonlinear wave interactions generate high-harmonic cyclotron emission from fusion-born protons during a KSTAR ELM crash. Nuclear Fusion, 58 (9). 096027. doi:10.1088/1741-4326/aacf47 ISSN 0029-5515.

McClements, K. G., Brisset, A., Chapman, Benjamin, Chapman, Sandra C., Dendy, R. O., Jacquet, P., Kiptily, V. G., Mantsinen, M. and Reman, B. C. G. (2018) Observations and modelling of ion cyclotron emission observed in JET plasmas using a sub-harmonic arc detection system during ion cyclotron resonance heating. Nuclear Fusion, 58 (9). 096020. doi:10.1088/1741-4326/aace03 ISSN 0029-5515.

Chapman, Sandra C., Lang, P. T., Dendy, R. O., Giannone, L., Watkins, Nicholas W. and ASDEX Upgrade Team, (2018) Control system-plasma synchronization and naturally occurring edge localized modes in a tokamak. Physics of Plasmas, 25 (6). 062511. doi:10.1063/1.5025333 ISSN 1089-7674.

McClements, K. G., Allen, J. O., Chapman, Sandra C., Dendy, R. O., Irvine, S. W. A., Marshall, O., Robb, D., Turnyankiy, M. and Vann, R. G. L. (2017) Particle acceleration during merging-compression plasma start-up in the Mega Amp Spherical Tokamak. Plasma Physics and Controlled Fusion, 60 (2). 025013. doi:10.1088/1361-6587/aa98fa ISSN 0741-3335.

Chapman, Benjamin, Dendy, R. O., McClements, Kenneth G., Chapman, Sandra C., Yun, Gunsu S, Thatipamula, Shekar Goud and Kim, Minho (2017) Sub-microsecond temporal evolution of edge density during edge localized modes in KSTAR tokamak plasmas inferred from ion cyclotron emission. Nuclear Fusion, 57 (12). 124004. doi:10.1088/1741-4326/aa8e09 ISSN 0029-5515.

Tindale, Elizabeth and Chapman, Sandra C. (2017) Solar wind plasma parameter variability across solar cycles 23 and 24 : from turbulence to extremes. Journal of Geophysical Research : Space Physics . doi:10.1002/2017ja024412 ISSN 2169-9380.

Chapman, Sandra C. (2017) Overview of progress in European medium sized tokamaks towards an integrated plasma-edge/wall solution. Nuclear Fusion . doi:10.1088/1741-4326/aa6084 ISSN 0029-5515.

Pratt, J., Busse, A., Müller, W-C., Watkins, Nicholas W. and Chapman, Sandra C. (2017) Extreme-value statistics from Lagrangian convex hull analysis for homogeneous turbulent Boussinesq convection and MHD convection. New Journal of Physics, 19 (6). 065006. doi:10.1088/1367-2630/aa6fe8 ISSN 1367-2630.

Cook, James William S., Dendy, R. O. and Chapman, Sandra C. (2017) Stimulated emission of fast Alfvén waves within magnetically confined fusion plasmas. Physical Review Letters, 118 . 185001. doi:10.1103/PhysRevLett.118.185001 ISSN 0031-9007.

Carbajal, L., Dendy, R. O., Chapman, Sandra C. and Cook, James William S. (2017) Quantifying fusion born ion populations in magnetically confined plasmas using ion cyclotron emission. Physical Review Letters, 118 (10). 105001. doi:10.1103/PhysRevLett.118.105001 ISSN 0031-9007.

Dods, Joe, Chapman, Sandra C. and Gjerloev, J. W. (2017) Characterising the ionospheric current pattern response to southward and northward IMF turnings with dynamical SuperMAG correlation networks. Journal of Geophysical Research: Space Physics, 122 (2). pp. 1883-1902. doi:10.1002/2016JA023686 ISSN 2169-9380.

Chapman, Sandra C., Dendy, R. O., Lang, P. T., Watkins, Nicholas W., Calderon, F. A., Romanelli, M. and Todd, T. N. (2017) The global build-up to intrinsic ELM bursts and comparison with pellet triggered ELMs seen in JET. Nuclear Fusion, 57 (2). 022017. doi:10.1088/0029-5515/57/2/022017 ISSN 0029-5515.

Tindale, Elizabeth and Chapman, Sandra C. (2016) Solar cycle variation of the statistical distribution of the solar wind ε parameter and its constituent variables. Geophysical Research Letters, 43 (11). pp. 5563-5570. doi:10.1002/2016GL068920 ISSN 0094-8276.

Watkins, Nicholas W., Pruessner, Gunnar, Chapman, Sandra C., Crosby, Norma B. and Jensen, Henrik Jeldtoft (2016) 25 Years of self-organized criticality : concepts and controversies. Space Science Reviews, 198 (1-4). pp. 3-44. doi:10.1007/s11214-015-0155-x ISSN 0038-6308.

Osman, K. T., Kiyani, K., Matthaeus, W. H., Hnat, Bogdan, Chapman, Sandra C. and Khotyaintsev, Yu. V. (2015) Multi-spacecraft measurement of turbulence within a magnetic reconnection jet. The Astrophysical Journal, 815 (2). L24. doi:10.1088/2041-8205/815/2/L24 ISSN 0004-637X.

Hush, Philip, Chapman, Sandra C., Dunlop, M. W. and Watkins, Nicholas W. (2015) Robust statistical properties of the size of large burst events in AE. Geophysical Research Letters, 42 (21). pp. 9197-9202. doi:10.1002/2015GL066277 ISSN 0094-8276.

Lai, W. N., Chapman, Sandra C. and Dendy, R. O. (2015) Velocity space evolution of a minority energetic electron population undergoing the anomalous Doppler instability. Physics of Plasmas, 22 (11). 112119. doi:10.1063/1.4936101 ISSN 1070-664X.

Dods, Joe, Chapman, Sandra C. and Gjerloev, Jesper W. (2015) Network analysis of geomagnetic substorms using the SuperMAG database of ground based magnetometer stations. Journal of Geophysical Research, 120 . pp. 7774-7784. doi:10.1002/2015JA021456 ISSN 0148-0227.

Chapman, Sandra C., Stainforth, David A. and Watkins, Nicholas W. (2015) Limits to the quantification of local climate change. Environmental Research Letters, 10 (9). 094018. doi:10.1088/1748-9326/10/9/094018 ISSN 1748-9326.

Chapman, Sandra C., Dendy, R. O., Todd, T. N., Watkins, Nicholas W., Calderon, F. A. and Morris, J. (2015) The global build-up to intrinsic edge localized mode bursts seen in divertor full flux loops in JET. Physics of plasmas, Volume 22 (Number 7). Article number 072506. doi:10.1063/1.4926592 ISSN 1070-664X.

Chapman, I. T., Chapman, Sandra C. and Dendy, R. O. (2015) Overview of MAST results. Nuclear Fusion, 55 (10). 104008. doi:10.1088/0029-5515/55/10/104008 ISSN 0029-5515.

Zhu, Hao, Dendy, R. O., Chapman, Sandra C. and Inagaki, S. (2015) A quantitative model for heat pulse propagation across Large Helical Device plasmas. Physics of plasmas, 22 (6). 062308 . doi:10.1063/1.4923307 ISSN 1070-664X.

Kiyani, K., Osman, K. T. and Chapman, Sandra C. (2015) Dissipation and heating in solar wind turbulence : from the macro to the micro and back again. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Volume 373 (Number 2041). Article number 20140155. doi:10.1098/rsta.2014.0155 ISSN 1364-503X.

Freethy, S., McClements, K. G., Chapman, Sandra C., Dendy, R. O., Lai, W. N., Pamela, S. J. P., Shevchenko, V. F. (Vladimir F.) and Vann, R. G. L. (2015) Electron kinetics inferred from observations of microwave bursts during edge localized modes in the mega-amp spherical tokamak. Physical Review Letters, Volume 114 (Number 12). Article number 125004. doi:10.1103/PhysRevLett.114.125004 ISSN 0031-9007.

McClements, K. G., D'Inca, R., Dendy, R. O., Carbajal, L., Chapman, Sandra C., Cook, James William S., Harvey, R. W., Heidbrink, W. (William) and Pinches, Simon David (2015) Fast particle-driven ion cyclotron emission (ICE) in tokamak plasmas and the case for an ICE diagnostic in ITER. Nuclear Fusion, Volume 55 (Number 4). pp. 1-6. Article number 043013. doi:10.1088/0029-5515/55/4/043013 ISSN 0029-5515.

Rekaa, V. L., Chapman, Sandra C. and Dendy, R. O. (2014) Ion pre-acceleration in fully self-consistent particle-in-cell simulations of supercritical perpendicular reforming shocks in multiple ion species plasmas. The Astrophysical Journal, Volume 791 (Number 1). pp. 26-34. doi:10.1088/0004-637X/791/1/26 ISSN 0004-637X.

Matthaeus, W. H., Oughton, S., Osman, K. T., Servidio, S., Wan, M., Gary, S. P., Shay, M. A., Valentini, F., Roytershteyn, V., Karimabadi, H. and Chapman, Sandra C. (2014) Nonlinear and linear timescales near kinetic scales in solar wind turbulence. The Astrophysical Journal, Volume 790 (Number 2). Article number 155. doi:10.1088/0004-637X/790/2/155 ISSN 0004-637X.

Zhu, Hao, Chapman, Sandra C., Dendy, R. O. and Itoh, Kimitaka (2014) Transitions to improved confinement regimes induced by changes in heating in zero-dimensional models for tokamak plasmas. Physics of Plasmas, Volume 21 (Number 6). Article number 062307. doi:10.1063/1.4884126 ISSN 1070-664X.

Webster, A. J., Dendy, R. O., Calderon, F. A., Chapman, Sandra C., Delabie, E., Dodt, D., Felton, R., Todd, T. N., Maviglia, F., Morris, J., Riccardo, V., Alper, B., Brezinsek, S., Coad, P., Likonen, J. and Rubel, M. (2014) Time-resonant tokamak plasma edge instabilities? Plasma Physics and Controlled Fusion, Volume 56 (Number 7). 075017. doi:10.1088/0741-3335/56/7/075017 ISSN 0741-3335.

Chapman, Sandra C., Dendy, R. O., Todd, T. N., Watkins, Nicholas W., Webster, A. J., Calderon, F. A. and Morris, J. (2014) Relationship of edge localized mode burst times with divertor flux loop signal phase in JET. Physics of Plasmas, 21 (6). Article number 062302. doi:10.1063/1.4881474 ISSN 1070-664X.

Osman, K. T., Matthaeus, W. H., Gosling, J. T., Greco, A., Servidio, S., Hnat, Bogdan, Chapman, Sandra C. and Phan, T. D. (2014) Magnetic reconnection and intermittent turbulence in the solar wind. Physical Review Letters, Volume 112 . Article number 215002. doi:10.1103/PhysRevLett.112.215002 ISSN 0031-9007.

Osman, K. T., Kiyani, K., Chapman, Sandra C. and Hnat, B. (2014) Anisotropic intermittency of magnetohydrodynamic turbulence. The Astrophysical Journal Letters, Volume 783 (Number 2). Article number L27. doi:10.1088/2041-8205/783/2/L27 ISSN 2041-8205.

Servidio, S., Osman, K. T., Valentini, F., Perrone, D., Califano, F., Chapman, Sandra C., Matthaeus, W. H. and Veltri, P. (2014) Proton kinetic effects in vlasov and solar wind turbulence. The Astrophysical Journal Letters, Volume 781 (Number 2). Article Number L27. doi:10.1088/2041-8205/781/2/L27 ISSN 2041-8205.

Carbajal, L., Dendy, R. O., Chapman, Sandra C. and Cook, James William S. (2014) Linear and nonlinear physics of the magnetoacoustic cyclotron instability of fusion-born ions in relation to ion cyclotron emission. Physics of Plasmas, 21 (1). 012106. doi:10.1063/1.4861866 ISSN 1070-664X.

Gingell, Peter W., Chapman, Sandra C. and Dendy, R. O. (2014) Plasma blob formation by ion kinetic Kelvin–Helmholtz and interchange instabilities. Plasma Physics and Controlled Fusion, Volume 56 (Number 3). Article number 035012. doi:10.1088/0741-3335/56/3/035012 ISSN 0741-3335.

Lai, W. N., Chapman, Sandra C. and Dendy, R. O. (2013) Self-consistent nonlinear kinetic simulations of the anomalous Doppler instability of suprathermal electrons in plasmas. Physics of Plasmas, Volume 20 (Number 10). Article number 102122 . doi:10.1063/1.4827207 ISSN 1070-664X.

Osman, K. T., Matthaeus, W. H., Kiyani, K., Hnat, B. and Chapman, Sandra C. (2013) Proton kinetic effects and turbulent energy cascade rate in the solar wind. Physical Review Letters, 111 (20). 201101 . doi:10.1103/PhysRevLett.111.201101 ISSN 0031-9007.

Dendy, R. O., Chapman, Sandra C. and Inagaki, S. (2013) Modelling the measured local time evolution of strongly nonlinear heat pulses in the Large Helical Device. Plasma Physics and Controlled Fusion, Volume 55 (Number 11). Article number 115009. doi:10.1088/0741-3335/55/11/115009 ISSN 0741-3335.

Chapman, Sandra C., Stainforth, David Alan and Watkins, Nicholas W. (2013) On estimating local long-term climate trends. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Volume 371 (Number 1991). Article number 20120287. doi:10.1098/rsta.2012.0287 ISSN 1364-503X.

Cook, James William S., Dendy, R. O. and Chapman, Sandra C. (2013) Particle-in-cell simulations of the magnetoacoustic cyclotron instability of fusion-born alpha-particles in tokamak plasmas. Plasma Physics and Controlled Fusion, 55 (6). 065003. doi:10.1088/0741-3335/55/6/065003 ISSN 0741-3335.

Wu, P., Perri, S., Osman, K. T., Wan, M., Matthaeus, W. H., Shay, M. A., Goldstein, M. L., Karimabadi, H. and Chapman, Sandra C. (2013) Intermittent heating in solar wind and kinetic simulations. Astrophysical Journal, Volume 763 (Number 2). L30. doi:10.1088/2041-8205/763/2/L30 ISSN 0004-637X.

Kiyani, K., Chapman, Sandra C., Sahraoui, F., Hnat, B., Fauvarque, O. and Khotyaintsev, Yu. V. (2013) Enhanced magnetic compressibility and isotropic scale invariance at sub-ion lamor scales in solar wind turbulence. Astrophysical Journal, 763 (1). 10. doi:10.1088/0004-637X/763/1/10 ISSN 0004-637X.

Karimabadi, H., Roytershteyn, V., Wan, M., Matthaeus, W. H., Daughton, W., Wu, P., Shay, M., Loring, B., Borovsky, J., Leonardis, Ersilia , Chapman, Sandra C. and Nakamura, T. K. M. (2013) Coherent structures, intermittent turbulence, and dissipation in high-temperature plasmas. Physics of Plasmas, Volume 20 (Number 1). Article number 012303. doi:10.1063/1.4773205 ISSN 1070-664X.

Leonardis, Ersilia , Chapman, Sandra C., Daughton, W., Roytershteyn, V. and Karimabadi, H. (2013) Identification of intermittent multifractal turbulence in fully kinetic simulations of magnetic reconnection. Physical Review Letters, Volume 110 (Number 20). Article number 205002 . doi:10.1103/PhysRevLett.110.205002 ISSN 0031-9007.

JET EFDA Contributors (Including: Calderon, F. A., Dendy, R. O., Chapman, Sandra C., Webster, A. J., Alper, B. and Nicol, R. M.). (2013) Identifying low-dimensional dynamics in type-I edge-localised-mode processes in JET plasmas. Physics of Plasmas, Volume 20 (Number 4). Article number 042306. doi:10.1063/1.4802793 ISSN 1070-664X.

Gingell, Peter W., Chapman, Sandra C. and Dendy, R. O. (2013) Plasma heating by ion gyro-scale blobs in the kinetic and fluid regimes. Plasma Physics and Controlled Fusion, Volume 55 (Number 5). Article number 055010. doi:10.1088/0741-3335/55/5/055010 ISSN 0741-3335.

Zhu, Hao, Chapman, Sandra C. and Dendy, R. O. (2013) Robustness of predator-prey models for confinement regime transitions in fusion plasmas. Physics of Plasmas, Volume 20 (Number 4). Article number 042302. doi:10.1063/1.4800009 ISSN 1070-664X.

Kiyani, K., Chapman, Sandra C., Sahraoui, F., Hnat, B., Fauvarque, O. and Khotyaintsev, Yu. V. (2012) Enhanced magnetic compressibility and isotropic scale invariance at sub-ion larmor scales in solar wind turbulence. The Astrophysical Journal, Volume 763 (Number 1). doi:10.1088/0004-637X/763/1/10 ISSN 0004-637X.

Nicol, R. M., Chapman, Sandra C., Vertes, P. E., Nathan, P. J., Smith, M. L., Shtyrov, Y. and Bullmore, E. T. (2012) Fast reconfiguration of high-frequency brain networks in response to surprising changes in auditory input. Journal of Neurophysiology, Vol.107 (No.5). pp. 1421-1430. doi:10.1152/jn.00817.2011 ISSN 0022-3077.

Turner, A. J. (Andrew J.), Gogoberidze, Grigol and Chapman, Sandra C. (2012) Nonaxisymmetric anisotropy of solar wind turbulence as a direct test for models of magnetohydrodynamic turbulence. Physical Review Letters, Vol.108 (No.8). 085001. doi:10.1103/PhysRevLett.108.085001 ISSN 0031-9007.

Leonardis, E., Chapman, Sandra C. and Foullon, C. (Claire) (2012) Turbulent characteristics in the intensity fluctuations of a solar quiescent prominence observed by the Hinode Solar Optical Telescope. Astrophysical Journal, Vol.745 (No.2). p. 185. doi:10.1088/0004-637X/745/2/185 ISSN 0004-637X.

Gogoberidze, Grigol, Chapman, Sandra C. and Hnat, B. (2012) Generation of residual energy in the turbulent solar wind. Physics of Plasmas, Vol.19 (No.10). Article no. 102310. doi:10.1063/1.4764469 ISSN 1070-664X.

Gogoberidze, Grigol, Chapman, Sandra C., Hnat, B. and Dunlop, M. W. (2012) Impact of measurement uncertainties on universal scaling of MHD turbulence. Monthly Notices of the Royal Astronomical Society, Vol. 426 (No. 2). pp. 951-955. doi:10.1111/j.1365-2966.2012.21775.x ISSN 003-58711.

Wan, M., Matthaeus, W. H., Karimabadi, H., Roytershteyn, V., Shay, M., Wu, P., Daughton, W., Loring, B. and Chapman, Sandra C. (2012) Intermittent dissipation at kinetic scales in collisionless plasma turbulence. Physical Review Letters, Volume 109 (Number 19). Article no. 195001. doi:10.1103/PhysRevLett.109.195001 ISSN 0031-9007.

Osman, K. T., Matthaeus, W. H., Hnat, B. and Chapman, Sandra C. (2012) Kinetic signatures and intermittent turbulence in the solar wind plasma. Physical Review Letters, Vol.108 (No.26). Article no. 261103. doi:10.1103/PhysRevLett.108.261103 ISSN 0031-9007.

Gingell, Peter W., Chapman, Sandra C., Dendy, R. O. and Brady, Christopher S. (2012) Transport and evolution of ion gyro-scale plasma blobs in perpendicular magnetic fields. Plasma Physics and Controlled Fusion, Volume 54 (Number 6). Article number 065005. doi:10.1088/0741-3335/54/6/065005 ISSN 0741-3335.

Hnat, B., Chapman, Sandra C., Gogoberidze, G. and Wicks, R. T. (2011) Scale-free texture of the fast solar wind. Physical Review E, Volume 84 (Number 6). Article number 065401. doi:10.1103/PhysRevE.84.065401 ISSN 1539-3755.

Vértes, Petra E., Nicol, Ruth M., Chapman, Sandra C., Watkins, Nicholas W., Robertson, Duncan A. and Bullmore, Edward T. (2011) Topological isomorphisms of human brain and financial market networks. Frontiers in Systems Neuroscience, Volume 5 . doi:10.3389/fnsys.2011.00075 ISSN 1662-5137.

Turner, A. J. (Andrew J.), Gogoberidze, Grigol, Chapman, Sandra C., Hnat, B. and Müller, W.-C. (2011) Nonaxisymmetric anisotropy of solar wind turbulence. Physical Review Letters, Vol.107 (No.9). Article no. 095002 . doi:10.1103/PhysRevLett.107.095002 ISSN 0031-9007.

Cook, James William S., Dendy, R. O. and Chapman, Sandra C. (2011) Gyrobunching and wave–particle resonance in the lower hybrid drift instability. Plasma Physics and Controlled Fusion, Vol.53 (No.7). 074019. doi:10.1088/0741-3335/53/7/074019 ISSN 0741-3335.

Cook, James William S., Chapman, Sandra C., Dendy, R. O. and Brady, Christopher S. (2011) Self-consistent kinetic simulations of lower hybrid drift instability resulting in electron current driven by fusion products in tokamak plasmas. Plasma Physics and Controlled Fusion, Vol.53 (No.6). article no. 065006. doi:10.1088/0741-3335/53/6/065006 ISSN 0741-3335.

Dunlop, M. W., Bingham, R., Chapman, Sandra C., Escoubet, P., Zhang, Q.-H., Shen, C., Shi, J.-K., Trines, R., Wicks, Robert T., Pu, Z.-Y., De Keyser, J. (Johan), Schwartz, S. (Steve) and Liu, Z.-X. (2011) Use of multi-point analysis and modelling to address cross-scale coupling in space plasmas : lessons from cluster. Planetary and Space Science, Vol.59 (No.7). pp. 630-638. doi:10.1016/j.pss.2010.06.014 ISSN 0032-0633.

Henwood, R., Chapman, Sandra C. and Willis, David M. (2010) Increasing lifetime of recurrent sunspot groups within the Greenwich photoheliographic results. Solar Physics, Vol.262 (No.2). pp. 299-313. doi:10.1007/s11207-009-9419-5 ISSN 0038-0938.

Cook, James William S., Chapman, Sandra C. and Dendy, R. O. (2010) Electron current drive by fusion-product-excited lower hybrid drift instability. Physical Review Letters, Vol.105 (No.25). article no. 255003 . doi:10.1103/PhysRevLett.105.255003 ISSN 0031-9007.

Chapman, Sandra C. and Nicol, R. M. (2009) Generalized similarity in finite range solar wind magnetohydrodynamic turbulence. Physical Review Letters, Vol.103 (No.24). Article no. 241101 . doi:10.1103/PhysRevLett.103.241101 ISSN 0031-9007.

Chapman, Sandra C. and Watkins, Nicholas W. (2009) Avalanching systems under intermediate driving rate. Plasma Physics and Controlled Fusion, Vol.51 (No.12). article no. 124006 . doi:10.1088/0741-3335/51/12/124006 ISSN 0741-3335.

Nicol, R. M., Chapman, Sandra C. and Dendy, R. O. (2009) Quantifying the anisotropy and solar cycle dependence of "1/f" solar wind fluctuations observed by advanced composition explorer. Astrophysical Journal, Vol.703 (No.2). pp. 2138-2151. doi:10.1088/0004-637X/703/2/2138 ISSN 0004-637X.

Kiyani, K., Chapman, Sandra C., Khotyaintsev, Yu. V., Dunlop, M. W. and Sahraoui, F. (2009) Global scale-invariant dissipation in collisionless plasma turbulence. Physical Review Letters, Vol.103 (No.7). Article no. 075006 . doi:10.1103/PhysRevLett.103.075006 ISSN 0031-9007.

Chapman, Sandra C., Nicol, R. M., Leonardis, E., Kiyani, K. and Carbone, V. (2009) Observation of universality in the generalized similarity of evolving solar wind turbulence as seen by ULYSSES. Astrophysical Journal Letters, Vol.695 (No.2). L185-L188. doi:10.1088/0004-637X/695/2/L185 ISSN 2041-8213.

Watkins, Nicholas W., Credgington, D., Sanchez, R., Rosenberg, S. J. and Chapman, Sandra C. (2009) Kinetic equation of linear fractional stable motion and applications to modeling the scaling of intermittent bursts. Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol.79 (No.4 Part 1). article no. 041124 . doi:10.1103/PhysRevE.79.041124 ISSN 1539-3755.

Kiyani, K., Chapman, Sandra C. and Watkins, Nicholas W. (2009) Pseudo-nonstationarity in the scaling exponents of finite-interval time series. Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol.79 (No.3). doi:10.1103/PhysRevE.79.036109 ISSN 1539-3755.

Chapman, Sandra C., Rowlands, G. (George) and Watkins, Nicholas W. (2009) Macroscopic control parameter for avalanche models for bursty transport. Physics of Plasmas, Vol.16 (No.1). doi:10.1063/1.3057392 ISSN 1070-664X.

Wicks, Robert T., Chapman, Sandra C. and Dendy, R. O. (2009) Spatial correlation of solar wind fluctuations and solar cycle dependence. Astrophysical Journal, Vol.690 (No.1). pp. 734-742. doi:10.1088/0004-637X/690/1/734 ISSN 0004-637X.

European Fusion Development Agreement, JET Project (Including: Poli, F. M. (Francesca), Sharapov, S. E. (Sergei E.) and Chapman, Sandra C.). (2008) Study of the spectral properties of ELM precursors by means of wavelets. Plasma Physics and Controlled Fusion, Vol.50 (No.9). p. 5009. doi:10.1088/0741-3335/50/9/095009 ISSN 0741-3335.

Nicol, R. M., Chapman, Sandra C. and Dendy, R. O. (2008) The signature of evolving turbulence in quiet solar wind as seen by Ulysses. Astrophysical Journal, Vol.679 (No.1). pp. 862-870. doi:10.1086/586732 ISSN 0004-637X.

Chapman, Sandra C., Hnat, B. and Kiyani, K. (2008) Solar cycle dependence of scaling in solar wind fluctuations. Nonlinear Processes in Geophysics, Vol.15 (No.3). pp. 445-455. doi:10.5194/npg-15-445-2008 ISSN 1023-5809.

Simon, B., Rowlands, G. (George), Nakariakov, V. M. (Valery M.) and Chapman, Sandra C. (2007) Potential methods for nonlinear slow magnetoacoustic waves in pressure anisotropic high-beta plasmas. Plasma Physics and Controlled Fusion, Vol.49 (No.12). pp. 2005-2017. doi:10.1088/0741-3335/49/12/004 ISSN 0741-3335.

Kiyani, K., Chapman, Sandra C., Hnat, B. and Nicol, Ruth Mary (2007) Self-similar signature of the active solar corona within the inertial range of solar-wind turbulence. Physical Review Letters, Vol.98 . doi:10.1103/PhysRevLett.98.211101 ISSN 0031-9007.

Wicks, Robert T., Chapman, Sandra C. and Dendy, R. O. (2007) Mutual information as a tool for identifying phase transitions in dynamical complex systems with limited data. Physical Review E, Vol.75 (No.5). Article: 051125. doi:10.1103/PhysRevE.75.051125 ISSN 1539-3755.

Bruno, Roberto, Carbone, Vincenzo, Chapman, Sandra C., Hnat, B., Noullez, Alain and Sorriso-Valvo, Luca (2007) Intermittent character of interplanetary magnetic field fluctuations. Physics of Plasmas, Vol.14 (No.3). Article: 032901. doi:10.1063/1.2711429 ISSN 1070-664X.

Merrifield, J. A., Chapman, Sandra C. and Dendy, R. O. (2007) Intermittency, dissipation, and scaling in two-dimensional magnetohydrodynamic turbulence. Physics of Plasmas, Volume 14 (Number 1). doi:10.1063/1.2409528 ISSN 1070-664X.

Hnat, B., Chapman, Sandra C., Kiyani, K., Rowlands, G. (George) and Watkins, Nicholas W. (2007) On the fractal nature of the magnetic field energy density in the solar wind. Geophysical Research Letters, Vol.34 . doi:10.1029/2007GL029531 ISSN 0094-8276.

Chapman, Sandra C. and Hnat, B. (2007) Quantifying scaling in the velocity field of the anisotropic turbulent solar wind. Geophysical Research Letters, Vol.34 . doi:10.1029/2007GL030518 ISSN 0094-8276.

Kiyani, K., Chapman, Sandra C. and Hnat, B. (2006) Extracting the scaling exponents of a self-affine, non-Gaussian process from a finite-length time series. PHYSICAL REVIEW E, 74 (5 Part 1). doi:10.1103/PhysRevE.74.051122 ISSN 1539-3755.

Chapman, Sandra C., Hnat, B., Rowlands, G. (George) and Watkins, Nicholas W. (2005) Scaling collapse and structure functions: identifying self-affinity in finite length time series. Nonlinear Processes in Geophysics, Vol.12 . pp. 767-774. ISSN 1023-5809.

McClements, K. G., Dendy, R. O., Dieckmann, M. E., Ynnerman, A. and Chapman, Sandra C. (2005) Surfatron and stochastic acceleration of electrons in astrophysical plasmas. Journal of Plasma Physics, Vol.71 (No.2). pp. 127-141. doi:10.1017/S0022377804003514 ISSN 0022-3778.

March, T. K., Chapman, Sandra C. and Dendy, R. O. (2005) Mutual information between geomagnetic indices and the solar wind as seen by WIND : implications for propagation time estimates. Geophysical Research Letters, Vol.32 . doi:10.1029/2004GL021677 ISSN 0094-8276.

Hnat, B., Chapman, Sandra C. and Rowlands, G. (George) (2005) Scaling and a Fokker-Planck model for fluctuations in geomagnetic indices and comparison with solar wind as seen by Wind and ACE. Journal of Geophysical Research, Vol.110 . doi:10.1029/2004JA010824 ISSN 0148-0227.

Greenhough, J., Chapman , Sandra C., Chaty, S., Dendy, R. O. and Rowlands , G. (George) (2003) Identification of a 12-17 day timescale in X-ray observations of GRS 1915+105. Monthly Notices of the Royal Astronomical Society, Vol.340 (No.3). pp. 851-855. doi:10.1046/j.1365-8711.2003.06340.x ISSN 0035-8711.

Hnat, B., Chapman, Sandra C., Rowlands, G. (George), Watkins, Nicholas W. and Freeman, M. P. (Mervyn P.) (2003) Scaling in long term data sets of geomagnetic indices and solar wind ϵ as seen by WIND spacecraft. Geophysical Research Letters, Vol.30 (No.22). doi:10.1029/2003GL018209 ISSN 0094-8276.

Greenhough, J., Birch, P.C., Chapman, Sandra C. and Rowlands, G. (George) (2002) Football goal distributions and extremal statistics. Physica A: Statistical Mechanics and its Applications, Vol.1 (No.4). pp. 615-624. doi:10.1016/S0378-4371(02)01030-0 ISSN 0378-4371 .

Greenhough, J., Chapman, Sandra C., Chaty, S., Dendy, R. O. and Rowlands, G. (George) (2002) Characterising anomalous transport in accretion disks from X-ray observations. Astronomy & Astrophysics, Vol.385 (No.2). pp. 693-700. doi:10.1051/0004-6361:20020013 ISSN 0004-6361.

Chapman, Sandra C., Rowlands, G. (George) and Watkins, Nicholas W. (2002) Extremum statistics: a framework for data analysis. Nonlinear Processes in Geophysics, Vol.9 . pp. 409-418. ISSN 1023-5809.

Hnat, B., Chapman, Sandra C., Rowlands, G. (George), Watkins, Nicholas W. and Farrell, W. M. (William M.) (2002) Finite size scaling in the solar wind magnetic field energy density as seen by WIND. Geophysical Research Letters, Vol.29 (No.10). doi:10.1029/2001GL014587 ISSN 0094-8276.

Hnat, B., Chapman, Sandra C., Rowlands, G. (George), Watkins, Nicholas W. and Freeman, M. P. (Mervyn P.) (2002) Scaling of solar wind e and the AU, AL and AE indices as seen by WIND. Geophysical Research Letters, Vol.29 (No.22). doi:10.1029/2002GL016054 ISSN 0094-8276.

Chapman, Sandra C., Watkins, Nicholas W. and Rowlands, G. (George) (2001) Signatures of dual scaling regimes in a simple avalanche model for magnetospheric activity. Journal of Atmospheric and Solar - Terrestrial Physics, Volume 63 (Number 13). pp. 1361-1370. doi:10.1016/S1364-6826(00)00237-6 ISSN 1364-6826.

Tsalas, M., Chapman, Sandra C. and Rowlands, G. (George) (2001) The stability of charged-particle motion in sheared magnetic reversals. Journal of Plasma Physics, Vol.65 (No.4). pp. 331-352. doi:10.1017/S0022377801001039 ISSN 0022-3778.

Book Item

Watkins, Nicholas W., Hnat, B. and Chapman, Sandra C. (2012) On self-similar and multifractal models for the scaling of extreme bursty fluctuations in space plasmas. In: Sharma, A. and Bunde, A. and Dimri, V. P. and Baker, D. N., (eds.) Extreme Events and Natural Hazards : The Complexity Perspective. Geophysical Monograph Series, Volume 196 . American Geophysical Union, pp. 299-313. ISBN 9780875904863

Conference Item

Chapman, Sandra C., Dendy, R. O., Watkins, Nicholas W., Todd, T. N. and Calderon, F. A. (2015) ELM occurrence times in relation to the phase evolution of global measurements in JET. In: 42nd European Physical Society Conference on Plasma Physics, Lisbon, Portugal, 22-26 Jun 2015. Published in: Proceedings 42nd EPS Conference on Plasma Physics, 39E ISBN 2914771983.

Chapman, Sandra C., Dendy, R. O., Webster, A. J., Watkins, Nicholas W., Todd, T. N. and Morris, J. (2014) An apparent relation between ELM occurrence times and the prior phase evolution of divertor flux loop measurements in JET. In: 41st EPS Conference on Plasma Physics, Berlin, Germany, 23-27 Jun 2014. Published in: Proceedings, 41st EPS Conference on Plasma Physics, Volume 38F ISBN 2914771908.

Gingell, Peter W., Chapman, Sandra C., Dendy, R. O. and Brady, Christopher S. (2011) Hybrid code investigation of the physics of multi-species plasma blobs in magnetic fields. In: 38th EPS Conference on Plasma Physics 2011, EPS 2011, Strasbourg, France, 27 June - 1 July 2011. Published in: 38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts, Volume 35 (Number 1). pp. 1-4. ISBN 978-161839593-1. ISSN 0378-2271.

Hnat, B., Chapman, Sandra C., Kiyani, K. and Rowlands, G. (George) (2010) Self-similarity of magnetic energy density fluctuations in the solar wind: evidence for coronal signature? In: Turbulence and Multifractals in Geophysics and Space , Brussels, Belgium, 09-11 June 2010

Chapman, Sandra C., Eliasson, Bengt and Shukla, P. K. (2010) Finite size effects and scaling in solar wind fluctuations. In: New Frontiers In Advanced Plasma Physics, Trieste, Italy, 5–16 Jul 2010. Published in: AIP Conference Proceedings, Vol.1306 pp. 35-49. doi:10.1063/1.3533192 ISSN 0094-243X.

Kiyani, K., Chapman, Sandra C., Khotyaintsev, Y., Dunlop, M. and Sahraoui, F. (2010) Fractal dissipation of small-scale magnetic fluctuations in solar wind turbulence as seen by CLUSTER. In: 12th International Solar Wind Conference, St Milo, France, June 21-26, 2009. Published in: AIP Conference Proceedings, Vol.1216 pp. 136-139. ISBN 978-0-7354-0759-6. doi:10.1063/1.3395819 ISSN 0094-243X.

Cook, James William S., Chapman, Sandra C. and Dendy, R. O. (2010) Growth rates of fusion product driven lower hybrid drift instability. In: 37th EPS Conference on Plasma Physics, Dublin, Ireland, 21-25 June 2010. Published in: Europhysics conference abstracts, Vol.34A P5.146.

Nicol, R. M., Chapman, Sandra C. and Dendy, R. O. (2010) The crossover to the "1/f" region of solar wind fluctuations. In: 12th International Solar Wind Conference, St Milo, France, June 21-26, 2009. Published in: AIP Conference Proceedings, Vol.1216 pp. 643-647. ISBN 978-0-7354-0759-6. doi:10.1063/1.3395948 ISSN 0094-243X.

Cook, James William S., Chapman, Sandra C. and Dendy, R. O. (2009) Particle-in-cell simulations of the emission mechanism for fusion product-driven ion cyclotron emission from Tokamak plasmas. In: 36th EPS Conference on Plasma Physics, Sofia, Bulgaria, 29 Jun - 3 Jul 2009. Published in: Europhysics conference abstracts, Vol.33E P-4.13.

Dendy, R. O., Chapman, Sandra C. and Paczuski, M. (2007) Fusion, space and solar plasmas as complex systems. In: 13th International Congress on Plasma Physics, Kiev, Ukraine, May 22-26, 2006. Published in: Plasma Physics and Controlled Fusion, Vol.49 (No.5A). A95-A108. doi:10.1088/0741-3335/49/5A/S08 ISSN 0741-3335.

Dendy, R. O. and Chapman, Sandra C. (2006) Characterization and interpretation of strongly nonlinear phenomena in fusion, space and astrophysical plasmas. In: 33rd European-Physical-Society Conference on Plasma Physics, Angelicum Univ, Rome, ITALY, JUN 19-23, 2006. Published in: PLASMA PHYSICS AND CONTROLLED FUSION, 48 (12B Sp. Iss. SI). B313-B328. doi:10.1088/0741-3335/48/12B/S30 ISSN 0741-3335.

Journal Item

Stainforth, David A., Chapman, Sandra C. and Watkins, Nicholas W. (2014) Mapping climate change in European temperature distributions. Environmental Research Letters, Volume 8 (Number 3). Article number 034031. doi:10.1088/1748-9326/8/3/034031

Watkins, Nicholas W., Chapman, Sandra C. and Rosenberg, S. J. (2009) Comment on "Coexistence of self-organized criticality and intermittent turbulence in the solar corona". Physical Review Letters, Vol.103 (No.3). article no. 039501. doi:10.1103/PhysRevLett.103.039501

Watkins, Nicholas W., Credgington, Daniel, Hnat, B., Chapman, Sandra C., Freeman, Mervyn P. and Greenhough, John (2005) Towards synthesis of solar wind and geomagnetic scaling exponents: A fractional Levy motion model. SPACE SCIENCE REVIEWS, 121 (1-4). pp. 271-284. doi:10.1007/s11214-006-4578-2

Dataset

Calel, Raphael, Chapman, Sandra C., Stainforth, David A. and Watkins, Nicholas W. (2021) Data for Temperature variability implies greater economic damages from climate change. [Dataset]