| A major solar eruptive event in July 2012: Defining extreme space weather scenarios DN Baker, X Li, A Pulkkinen, CM Ngwira, ML Mays, AB Galvin, ... Space weather 11 (10), 585-591, 2013 | 251 | 2013 |
| Geomagnetically induced currents: Science, engineering, and applications readiness A Pulkkinen, E Bernabeu, A Thomson, A Viljanen, R Pirjola, D Boteler, ... Space weather 15 (7), 828-856, 2017 | 202 | 2017 |
| Simulation of the 23 July 2012 extreme space weather event: What if this extremely rare CME was Earth directed? CM Ngwira, A Pulkkinen, M Leila Mays, MM Kuznetsova, AB Galvin, ... Space Weather 11 (12), 671-679, 2013 | 105 | 2013 |
| Characteristics of extreme geoelectric fields and their possible causes: Localized peak enhancements CM Ngwira, AA Pulkkinen, E Bernabeu, J Eichner, A Viljanen, G Crowley Geophysical Research Letters 42 (17), 6916-6921, 2015 | 103 | 2015 |
| Extended study of extreme geoelectric field event scenarios for geomagnetically induced current applications CM Ngwira, A Pulkkinen, FD Wilder, G Crowley Space Weather 11 (3), 121-131, 2013 | 94 | 2013 |
| Modeling extreme “Carrington‐type” space weather events using three‐dimensional global MHD simulations CM Ngwira, A Pulkkinen, MM Kuznetsova, A Glocer Journal of Geophysical Research: Space Physics 119 (6), 4456-4474, 2014 | 89 | 2014 |
| Regional-scale high-latitude extreme geoelectric fields pertaining to geomagnetically induced currents A Pulkkinen, E Bernabeu, J Eichner, A Viljanen, C Ngwira Earth, Planets and Space 67, 1-8, 2015 | 83 | 2015 |
| Improved modeling of geomagnetically induced currents in the South African power network CM Ngwira, A Pulkkinen, LA McKinnell, PJ Cilliers Space Weather 6 (11), 2008 | 81 | 2008 |
| Model evaluation guidelines for geomagnetic index predictions MW Liemohn, JP McCollough, VK Jordanova, CM Ngwira, SK Morley, ... Space Weather 16 (12), 2079-2102, 2018 | 74 | 2018 |
| A study of intense local dB/dt variations during two geomagnetic storms CM Ngwira, D Sibeck, MVD Silveira, M Georgiou, JM Weygand, ... Space Weather 16, 2018 | 67 | 2018 |
| Present day challenges in understanding the geomagnetic hazard to national power grids AWP Thomson, CT Gaunt, P Cilliers, JA Wild, B Opperman, LA McKinnell, ... Advances in Space Research 45 (9), 1182-1190, 2010 | 63 | 2010 |
| Interhemispheric comparison of GPS phase scintillation at high latitudes during the magnetic-cloud-induced geomagnetic storm of 5–7 April 2010 P Prikryl, L Spogli, PT Jayachandran, J Kinrade, CN Mitchell, B Ning, G Li, ... Annales Geophysicae 29 (12), 2287-2304, 2011 | 62 | 2011 |
| Geomagnetically induced currents caused by interplanetary shocks with different impact angles and speeds DM Oliveira, D Arel, J Raeder, E Zesta, CM Ngwira, BA Carter, ... Space weather 16 (6), 636-647, 2018 | 61 | 2018 |
| A comparative study of TEC response for the African equatorial and mid-latitudes during storm conditions JB Habarulema, LA McKinnell, D Burešová, Y Zhang, G Seemala, ... Journal of Atmospheric and Solar-Terrestrial Physics 102, 105-114, 2013 | 59 | 2013 |
| Ionospheric observations during the geomagnetic storm events on 24–27 July 2004: Long‐duration positive storm effects CM Ngwira, LA McKinnell, PJ Cilliers, AJ Coster Journal of Geophysical Research: Space Physics 117 (A9), 2012 | 51 | 2012 |
| Simultaneous observations of ionospheric irregularities in the African low-latitude region CM Ngwira, GK Seemala, JB Habarulema Journal of Atmospheric and Solar-Terrestrial Physics 97, 50-57, 2013 | 49 | 2013 |
| Geomagnetically induced currents: Principles DM Oliveira, CM Ngwira Brazilian Journal of Physics 47, 552-560, 2017 | 47 | 2017 |
| An investigation of ionospheric disturbances over South Africa during the magnetic storm on 15 May 2005 CM Ngwira, LA McKinnell, PJ Cilliers, E Yizengaw Advances in Space Research 49 (2), 327-335, 2012 | 43 | 2012 |
| Extreme geomagnetically induced currents R Kataoka, C Ngwira Progress in Earth and Planetary Science 3, 1-7, 2016 | 42 | 2016 |
| Limitations of the modeling of geomagnetically induced currents in the South African power network CM Ngwira, LA McKinnell, PJ Cilliers, A Viljanen, R Pirjola Space Weather 7 (10), 2009 | 42 | 2009 |
