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Items where NERC Author is "Clilverd, Mark"

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Number of items: 133.

2014

Menk, Frederick; Kale, Zoë; Sciffer, Murray; Robinson, Peter; Waters, Colin; Grew, Russell; Clilverd, Mark; Mann, Ian. 2014 Remote sensing the plasmasphere, plasmapause, plumes and other features using ground-based magnetometers. Journal of Space Weather and Space Climate, 4, A34. 16, pp. 10.1051/swsc/2014030

Andersson, M. E.; Verronen, P. T.; Rodger, C. J.; Clilverd, M. A.; Seppälä, A.. 2014 Missing driver in the Sun–Earth connection from energetic electron precipitation impacts mesospheric ozone. Nature Communications, 5, 5197. 5, pp. 10.1038/ncomms6197

Simms, Laura E.; Pilipenko, Viacheslav A.; Engebretson, Mark J.; Reeves, Geoffrey D.; Smith, A.J.; Clilverd, Mark. 2014 Prediction of relativistic electron flux at geostationary orbit following storms: Multiple regression analysis. Journal of Geophysical Research: Space Physics, 119 (9). 7297-7318. 10.1002/2014JA019955

Thomson, Neil R.; Clilverd, Mark A.; Rodger, Craig J.. 2014 Low-latitude ionospheric D region dependence on solar zenith angle. Journal of Geophysical Research: Space Physics, 119 (8). 6865-6875. 10.1002/2014JA020299

Whittaker, Ian C.; Rodger, Craig J.; Clilverd, Mark A.; Sauvaud, Jean-André. 2014 The effects and correction of the geometric factor for the POES/MEPED electron flux instrument using a multisatellite comparison. Journal of Geophysical Research: Space Physics, 119 (8). 6386-6404. 10.1002/2014JA020021

Wedlund, Mea Simon; Clilverd, Mark A.; Rodger, Craig J.; Cresswell-Moorcock, Kathy; Cobbett, Neil; Breen, Paul; Danskin, Donald; Spanswick, Emma; Rodriguez, Juan V.. 2014 A statistical approach to determining energetic outer radiation-belt electron precipitation fluxes. Journal of Geophysical Research: Space Physics, 119 (5). 3961-3978. 10.1002/2013JA019715

Seppala, Annika; Clilverd, Mark A.. 2014 Energetic particle forcing of the Northern Hemisphere winter stratosphere: comparison to solar irradiance forcing. Frontiers in Physics, 2, 25. 6, pp. 10.3389/fphy.2014.00025

Denton, M. H.; Kosch, M. J.; Borovsky, J. E.; Clilverd, M. A.; Friedel, R. H. W.; Ulich, T.. 2014 First optical observations of energetic electron precipitation at 4278 Å caused by a powerful VLF transmitter. Geophysical Research Letters, 41 (7). 2237-2242. 10.1002/2014GL059553

Andersson, M. E.; Verronen, P. T.; Rodger, C. J.; Clilverd, M. A.; Wang, S.. 2014 Longitudinal hot-spots in the mesospheric OH variations due to energetic electron precipitation. Atmospheric Chemistry and Physics, 14 (2). 1095-1105. 10.5194/acp-14-1095-2014

2013

Whittaker, Ian C.; Gamble, Rory J.; Rodger, Craig J.; Clilverd, Mark A.; Sauvaud, Jean-André. 2013 Determining the spectra of radiation belt electron losses: Fitting DEMETER electron flux observations for typical and storm times. Journal of Geophysical Research: Space Physics, 118 (12). 7611-7623. 10.1002/2013JA019228

Rodger, Craig J.; Kavanagh, Andrew J.; Clilverd, Mark A.; Marple, Steve R.. 2013 Comparison between POES energetic electron precipitation observations and riometer absorptions; implications for determining true precipitation fluxes. Journal of Geophysical Research: Space Physics, 118 (12). 7810-7821. 10.1002/2013JA019439

Newnham, David A.; Espy, Patrick J.; Clilverd, Mark A.; Rodger, Craig J.; Seppala, Annika; Maxfield, David J.; Straub, Corinne; Holmén, Kim; Horne, Richard B.. 2013 Observations of nitric oxide in the Antarctic middle atmosphere during recurrent geomagnetic storms. Journal of Geophysical Research - Space Physics, 118 (12). 7874-7885. 10.1002/2013JA019056

Clilverd, Mark A.; Cobbett, Neil; Rodger, Craig J.; Brundell, James B.; Denton, Michael H.; Hartley, David P.; Rodriguez, Juan V.; Danskin, Donald; Raita, Tero; Spanswick, Emma L.. 2013 Energetic electron precipitation characteristics observed from Antarctica during a flux dropout event. Journal of Geophysical Research: Space Physics, 118 (11). 6921-6935. 10.1002/2013JA019067

Millan, R. M.; McCarthy, M. P.; Sample, J. G.; Smith, D. M.; Thompson, L. D.; McGaw, D. G.; Woodger, L. A.; Hewitt, J. G.; Comess, M. D.; Yando, K. B.; Liang, A. X.; Anderson, B. A.; Knezek, N. R.; Rexroad, W. Z.; Scheiman, J. M.; Bowers, G. S.; Halford, A. J.; Collier, A. B.; Clilverd, M. A.; Lin, R. P.; Hudson, M. K.. 2013 The Balloon Array for RBSP Relativistic Electron Losses (BARREL). Space Science Reviews, 179 (1-4). 503-530. 10.1007/s11214-013-9971-z

Verronen, Pekka T.; Andersson, Monika E.; Rodger, Craig J.; Clilverd, Mark A.; Wang, Shuhui; Turunen, Esa. 2013 Comparison of modeled and observed effects of radiation belt electron precipitation on mesospheric hydroxyl and ozone. Journal of Geophysical Research: Atmospheres, 118 (19). 11419-11428. 10.1002/jgrd.50845

Bertoni, Fernando Celso Perin; Raulin, Jean-Pierre; Rivero Gavilán, Hernán; Kaufmann, Pierre; Rodriguez, Rodolfo; Clilverd, Mark; Cardenas, Jorge Samanes; Fernandez, Germán. 2013 Lower ionosphere monitoring by the South America VLF Network (SAVNET): C-region occurrence and atmospheric temperature variability. Journal of Geophysical Research: Space Physics, 118 (10). 6686-6693. 10.1002/jgra.50559

Cresswell-Moorcock, Kathy; Rodger, Craig J.; Kero, Antti; Collier, Andrew B.; Clilverd, Mark A.; Häggström, Ingemar; Pitkänen, Timo. 2013 A re-examination of latitudinal limits of substorm-produced energetic electron precipitation. Journal of Geophysical Research: Space Physics, 118 (10). 6694-6705. 10.1002/jgra.50598

Lichtenberger, János; Clilverd, Mark A.; Heilig, Balázs; Vellante, Massimo; Manninen, Jyrki; Rodger, Craig J.; Collier, Andrew B.; Jørgensen, Anders M.; Reda, Jan; Holzworth, Robert H.; Friedel, Reinhard; Simon-Wedlund, Mea. 2013 The plasmasphere during a space weather event: first results from the PLASMON project. Journal of Space Weather and Space Climate, 3, A23. 13, pp. 10.1051/swsc/2013045

Hendry, Aaron T.; Rodger, Craig J.; Clilverd, Mark A.; Thomson, Neil R.; Morley, Steven K.; Raita, Tero. 2013 Rapid radiation belt losses occurring during high-speed solar wind stream-driven storms: importance of energetic electron precipitation. In: Summers, D.; Mann, I.R.; Baker, D.N.; Schulz, M., (eds.) Dynamics of the Earth's Radiation Belts and Inner Magnetosphere. Washington, D.C., Wiley, 213-224. (Geophysical Monograph Series, 199).

Seppälä, A.; Lu, H.; Clilverd, M.A.; Rodger, C.J.. 2013 Geomagnetic activity signatures in wintertime stratosphere wind, temperature, and wave response. Journal of Geophysical Research: Atmospheres, 118 (5). 2169-2183. 10.1002/jgrd.50236

Carson, Bonar R.; Rodger, Craig J.; Clilverd, Mark A.. 2013 POES satellite observations of EMIC-wave driven relativistic electron precipitation during 1998-2010. Journal of Geophysical Research: Space Physics, 118 (1). 232-243. 10.1029/2012JA017998

2012

Cobbett, Neil; Clilverd, Mark. 2012 Autonomous Very Low Frequency Receiver (VLF). [Impact (Summary)]

Clilverd, Mark; Rodger, Craig J.; Rae, Jonathan; Brundell, James B.; Thomson, Neil R.; Cobbett, Neil; Verronen, Pekka T.; Menk, Fredrick W.. 2012 Combined THEMIS and ground-based observations of a pair of substorm-associated electron precipitation events. Journal of Geophysical Research (Space Physics), 117, A02313. 12, pp. 10.1029/2011JA016933

Rodger, Craig J.; Clilverd, M.A.; Kavanagh, Andrew J.; Watt, Clare E.J.; Verronen, Pekka T.; Raita, Tero. 2012 Contrasting the responses of three different ground-based instruments to energetic electron precipitation. Radio Science, 47. 13, pp. 10.1029/2011RS004971

Clilverd, Mark A.; Rodger, Craig J.; Danskin, Donald; Usanova, Maria E.; Raita, Tero; Ulich, Thomas; Spanswick, Emma L.. 2012 Energetic particle injection, acceleration, and loss during the geomagnetic disturbances which upset Galaxy 15. Journal of Geophysical Research (Space Physics), 117 (A12), A12213. 16, pp. 10.1029/2012JA018175

Andersson, Monika E.; Verronen, Pekka T.; Wang, Shuhui; Rodger, Craig J.; Clilverd, Mark A.; Carson, Bonar R.. 2012 Precipitating radiation belt electrons and enhancements of mesospheric hydroxyl during 2004–2009. Journal of Geophysical Research (Atmospheres), 117, D09304. 13, pp. 10.1029/2011JD017246

Delport, B.; Collier, A.B.; Lichtenberger, J.; Rodger, C.J.; Parrot, M.; Clilverd, M.A.; Friedel, R.H.W.. 2012 Simultaneous observation of chorus and hiss near the plasmapause. Journal of Geophysical Research (Space Physics), 117 (A12), A12218. 16, pp. 10.1029/2012JA017609

Lu, Hua; Li, Yun; Clilverd, Mark A.; Jarvis, Martin J.. 2012 Trend and abrupt changes in long-term geomagnetic indices. Journal of Geophysical Research (Space Physics), 117, A05318. 14, pp. 10.1029/2011JA017422

Thomson, Neil R.; Rodger, Craig J.; Clilverd, Mark A.. 2012 Tropical daytime lower D-region dependence on sunspot number. Journal of Geophysical Research (Space Physics), 117 (A10). 9, pp. 10.1029/2012JA018077

Menk, F.W.; Ables, S.T.; Grew, R.S.; Clilverd, Mark; Sandel, B.R.. 2012 The annual and longitudinal variations in plasmaspheric ion density. Journal of Geophysical Research (Space Physics), 117, A03215. 12, pp. 10.1029/2011JA017071

2011

Thomson, Neil R.; Rodger, Craig J.; Clilverd, Mark. 2011 Daytime D region parameters from long-path VLF phase and amplitude. Journal of Geophysical Research, 116 (A11). 12, pp. 10.1029/2011JA016910

Thomson, Neil R.; Clilverd, Mark A.; Rodger, Craig J.. 2011 Daytime midlatitude D region parameters at solar minimum from short-path VLF phase and amplitude. Journal of Geophysical Research, 116 (A3), A03310. 12, pp. 10.1029/2010JA016248

Newnham, David; Espy, Patrick J.; Clilverd, Mark; Rodger, Craig J.; Seppala, Annika; Maxfield, David; Hartogh, Paul; Holmen, Kim; Horne, Richard. 2011 Direct observations of nitric oxide produced by energetic electron precipitation into the Antarctic middle atmosphere. Geophysical Research Letters, 38 (L20104). 5, pp. 10.1029/2011GL048666

Verronen, Pekka T.; Rodger, Craig J.; Clilverd, Mark A.; Wang, Shuhui. 2011 First evidence of mesospheric hydroxyl response to electron precipitation from the radiation belts. Journal of Geophysical Research, 116 (D7). 12, pp. 10.1029/2010JD014965

Baumgaertner, A.J.G.; Seppala, Annika; Jockel, P.; Clilverd, Mark A.. 2011 Geomagnetic activity related NOx enhancements and polar surface air temperature variability in a chemistry climate model: modulation of the NAM index. Atmospheric Chemistry and Physics, 11 (9). 4521-4531. 10.5194/acp-11-4521-2011

Li, Yun; Lu, Hua; Jarvis, Martin J.; Clilverd, Mark A.; Bates, Bryson. 2011 Nonlinear and nonstationary influences of geomagnetic activity on the winter North Atlantic Oscillation. Journal of Geophysical Research, 116 (D13), D16109. 15, pp. 10.1029/2011JD015822

Collier, A.B.; Lichtenberger, J.; Clilverd, Mark A.; Rodger, C.J.; Steinbach, P.. 2011 Source region for whistlers detected at Rothera, Antarctica. Journal of Geophysical Research, 116 (A3), A03219. 13, pp. 10.1029/2010JA016197

2010

Clarke, Ellen; Rodger, Craig; Clilverd, Mark; Humphries, Thomas; Baillie, Orsolya; Thomson, Alan. 2010 An estimation of the Carrington flare magnitude from solar flare effects (sfe) in the geomagnetic records. [Poster] In: RAS NAM 2010 with the UK Solar Physics & MIST Meetinsg, Glasgow, Scotland, 12-16 April 2010. (Unpublished)

Lichtenberger, János; Ferencz, Csaba; Hamar, Daniel; Steinbach, Peter; Rodger, Craig J.; Clilverd, Mark A.; Collier, Andrew B.. 2010 Automatic Whistler Detector and Analyzer system: Implementation of the analyzer algorithm. Journal of Geophysical Research, 115 (A12), A12214. 7, pp. 10.1029/2010JA015931

Rodger, Craig J.; Carson, Bonar R.; Cummer, Steven A.; Gamble, Rory J.; Clilverd, Mark A.; Green, Janet C.; Sauvaud, Jean-Andre; Parrot, Michel; Berthelier, Jean-Jacques. 2010 Contrasting the efficiency of radiation belt losses caused by ducted and nonducted whistler-mode waves from ground-based transmitters. Journal of Geophysical Research, 115 (A12), A12208. 13, pp. 10.1029/2010JA015880

Clilverd, Mark A.; Rodger, Craig J.; Moffat-Griffin, Tracy; Spanswick, Emma; Breen, Paul; Menk, Frederick W.; Grew, Russell S.; Hayashi, Kanji; Mann, Ian R.. 2010 Energetic outer radiation belt electron precipitation during recurrent solar activity. Journal of Geophysical Research, 115, A08323. 14, pp. 10.1029/2009JA015204

Clilverd, Mark A.; Rodger, Craig J.; Gamble, Rory J.; Ulich, Thomas; Raita, Tero; Seppälä, Annika; Green, Janet C.; Thomson, Neil R.; Sauvaud, Jean-André; Parrot, Michel. 2010 Ground-based estimates of outer radiation belt energetic electron precipitation fluxes into the atmosphere. Journal of Geophysical Research, 115 (A12), A12304. 11, pp. 10.1029/2010JA015638

Clilverd, Mark A.; Rodger, Craig J.; Dietrich, Sarah; Raita, Tero; Ulich, Thomas; Clarke, Ellen; Thomson, Alan W.P.; Kavanagh, Andrew J.. 2010 High-latitude geomagnetically induced current events observed on very low frequency radio wave receiver systems. Radio Science, 45 (2), RS2006. 10.1029/2009RS004215

Rodger, Craig J.; Clilverd, Mark A.; Seppälä, Annika; Thomson, Neil R.; Gamble, Rory J.; Parrot, Michel; Sauvaud, Jean-André; Ulich, Thomas. 2010 Radiation belt electron precipitation due to geomagnetic storms: Significance to middle atmosphere ozone chemistry. Journal of Geophysical Research, 115 (A11), A11320. 12, pp. 10.1029/2010JA015599

Dietrich, Sarah; Rodger, Craig J.; Clilverd, Mark A.; Bortnik, Jacob; Raita, Tero. 2010 Relativistic microburst storm characteristics: Combined satellite and ground-based observations. Journal of Geophysical Research, 115 (A12), A12240. 10, pp. 10.1029/2010JA015777

Rodger, Craig J.; Clilverd, Mark A.; Green, Janet C.; Lam, Mai Mai. 2010 Use of POES SEM-2 observations to examine radiation belt dynamics and energetic electron precipitation into the atmosphere. Journal of Geophysical Research, 115 (A4), A04202. 13, pp. 10.1029/2008JA014023

Ferencz, Csaba; Lichtenberger, Janos; Hamar, Daniel; Ferencz, Orsolya E.; Steinbach, Peter; Szekely, Balazs; Parrot, Michel; Lefeuvre, Francois; Berthelier, Jean-Jacques; Clilverd, Mark. 2010 An unusual VLF signature structure recorded by the DEMETER satellite. Journal of Geophysical Research, 115 (A2), A02210. 10, pp. 10.1029/2009JA014636

2009

Clilverd, M.A.; Seppala, A.; Rodger, C.J.; Mlynczak, M.G.; Kozyra, J.U.. 2009 Additional stratospheric NOx production by relativistic electron precipitation during the 2004 spring NOx descent event. Journal of Geophysical Research, 114 (A4), A04305. 11, pp. 10.1029/2008JA013472

Seppälä, A.; Randall, C.E.; Clilverd, Mark A.; Rozanov, E.; Rodger, C.J.. 2009 Geomagnetic activity and polar surface air temperature variability. Journal of Geophysical Research, 114 (A10), A10312. 10, pp. 10.1029/2008JA014029

Turunen, Esa; Verronen, Pekka T.; Seppälä, Annika; Rodger, Craig J.; Clilverd, Mark A.; Tamminen, Johanna; Enell, Carl-Fredrik; Ulich, Thomas. 2009 Impact of different energies of precipitating particles on NOx generation in the middle and upper atmosphere during geomagnetic storms. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (10-11). 1176-1189. 10.1016/j.jastp.2008.07.005

Clilverd, Mark. A.; Rodger, Craig. J.; Brundell, James. B.; Ulich, Thomas; Lichtenberger, Janos; Cobbett, Neil; Collier, Andrew.B.; Menk, Frederick.W.; Seppala, Annika; Verronen, Pekka.T.; Turunen, Esa. 2009 Remote sensing space weather events: Antarctic-Arctic radiation-belt (Dynamic) Deposition-VLF Atmospheric Research Konsortium network. Space Weather, 7 (4), S04001. 15, pp. 10.1029/2008SW000412

2008

Clarke, Ellen; Clilverd, Mark; Macmillan, Susan. 2008 Geomagnetic and Solar Variability and Natural Climate Change. [Poster] In: New Advances in Geophysics 2008, Geophysics of Global Climate Change, Burlington House, London, 7-8 February 2008. (Unpublished)

Rodger, C.J.; Verronen, P.T.; Clilverd, M.A.; Seppala, A.; Turunen, E.. 2008 Atmospheric impact of the Carrington event solar protons. Journal of Geophysical Research, 113 (D23), D23302. 13, pp. 10.1029/2008JD010702

Clilverd, M.A.; Rodger, C.J.; Brundell, J.B.; Bahr, J.; Cobbett, N.; Moffat-griffin, T.; Kavanagh, A.J.; Seppala, A.; Thomson, N.R.; Friedel, R.H.W.; Menk, F.W.. 2008 Energetic electron precipitation during substorm injection events: high-latitude fluxes and an unexpected midlatitude signature. Journal of Geophysical Research, 113 (A10), A10311. 12, pp. 10.1029/2008JA013220

Lu, Hua; Clilverd, Mark A.; Seppälä, Annika; Hood, Lon L.. 2008 Geomagnetic perturbations on stratospheric circulation in late winter and spring. Journal of Geophysical Research, 113 (D16), D16106. 16, pp. 10.1029/2007JD008915

Clilverd, Mark A.; Rodger, Craig J.; Gamble, Rory; Meredith, Nigel P.; Parrot, Michel; Berthelier, Jean-Jacques; Thomson, Neil R.. 2008 Ground-based transmitter signals observed from space: Ducted or nonducted? Journal of Geophysical Research, 113 (A4), A04211. 12, pp. 10.1029/2007JA012602

Rodger, Craig J.; Clilverd, Mark A.. 2008 Magnetospheric physics - Hiss from the chorus. Nature, 452 (7183). 41-42. 10.1038/452041a

Rodger, C.J.; Raita, T.; Clilverd, M.A.; Seppala, A.; Dietrich, S.; Thomson, N.R.; Ulich, T.. 2008 Observations of relativistic electron precipitation from the radiation belts driven by EMIC waves. Geophysical Research Letters, 35 (16), L16106. 5, pp. 10.1029/2008GL034804

Gamble, R.J.; Rodger, C.J.; Clilverd, M.A.; Sauvaud, J.-A.; Thomson, N.R.; Stewart, S.L.; Mccormick, R.J.; Parrot, M.; Berthelier, J.-.J.. 2008 Radiation belt electron precipitation by man-made VLF transmissions. Journal of Geophysical Research, 113 (A10), A10211. 13, pp. 10.1029/2008JA013369

Rodger, C.J.; Seppala, A.; Clilverd, M.A.. 2008 Significance of transient luminous events to neutral chemistry: experimental measurements. Geophysical Research Letters, 35 (7), L07803. 5, pp. 10.1029/2008GL033221

Dowden, R.L.; Holzworth, R.H.; Rodger, C.J.; Lichtenberger, J.; Thomson, N.R.; Jacobson, A.R.; Lay, E.; Brundell, J.B.; Lyons, T.J.; O'keefe, S.; Kawasaki, Z.; Price, C.; Prior, V.; Ortega, P.; Weinman, J.; Mikhailov, Y.; Veliz, O.; Qie, X.; Burns, G.; Collier, A.; Pinto, O.; Diaz, R.; Adamo, C.; Williams, E.R.; Kumar, S.; Raga, G.B.; Rosado, J.M.; Avila, E.E.; Clilverd, M.A.; Ulich, T.; Gorham, P.; Shanahan, T.J.G.; Osipowicz, T.; Cook, G.; Zhao, Y.. 2008 World-wide lightning location using VLF propagation in the Earth-ionosphere waveguide. IEEE Antennas and Propagation Magazine, 50 (5). 40-60.

Seppala, A.; Clilverd, M.A.; Rodger, C.J.; Verronen, P.T.; Turunen, E.. 2008 The effects of hard-spectra solar proton events on the middle atmosphere. Journal of Geophysical Research, 113 (A11), A11311. 11, pp. 10.1029/2008JA013517

2007

Clilverd, Mark; Rodger, Craig; Moffat-Griffin, Tracy; Verronen, Pekka. 2007 Improved dynamic geomagnetic rigidity cutoff modeling: testing predictive accuracy. Journal of Geophysical Research, 112 (A8). 13, pp. 10.1029/2007JA012410

Clarke, Ellen; Clilverd, Mark. 2007 Is there a need to revise the aa index? [Poster] In: XXIV IUGG General Assembly 2007, Perugia, Italy, July 2007. (Unpublished)

Seppala, A.; Verronen, P.T.; Clilverd, M.A.; Randall, C.E.; Tamminen, J.; Sofieva, V.F.; Backman, L.; Kyrola, E.. 2007 Arctic and Antarctic polar winter NOx and energetic particle precipitation in 2002-2006. Geophysical Research Letters, 34 (12), L12810. 5, pp. 10.1029/2007GL029733

Clilverd, M.A.; Rodger, C.J.; Millan, R.M.; Sample, J.G.; Kokorowski, M.; Mccarthy, M.P.; Ulich, T.; Raita, T.; Kavanagh, A.J.; Spanswick, E.. 2007 Energetic particle precipitation into the middle atmosphere triggered by a coronal mass ejection. Journal of Geophysical Research, 112 (A12), A12206. 12, pp. 10.1029/2007JA012395

Verronen, P.T.; Rodger, C.J.; Clilverd, M.A.; Pickett, H.M.; Turunen, E.. 2007 Latitudinal extent of the January 2005 solar proton event in the Northern Hemisphere from satellite observations of hydroxyl. Annales Geophysicae, 25 (10). 2203-2215. 10.5194/angeo-25-2203-2007

Rodger, C.J.; Enell, C.-F.; Turunen, E.; Clilverd, M.A.; Thomson, N.R.; Verronen, P.T.. 2007 Lightning-driven inner radiation belt energy deposition into the atmosphere: implications for ionisation-levels and neutral chemistry. Annales Geophysicae, 25 (8). 1745-1757. 10.5194/angeo-25-1745-2007

Clilverd, M.A.; Meredith, N.P.; Horne, R.B.; Glauert, S.A.; Anderson, R.R.; Thomson, N.R.; Menk, F.W.; Sandel, B.R.. 2007 Longitudinal and seasonal variations in plasmaspheric electron density: Implications for electron precipitation. Journal of Geophysical Research, 112 (A11), A11210. 10, pp. 10.1029/2007JA012416

Grew, R.S.; Menk, F.W.; Clilverd, M.A.; Sandel, B.R.. 2007 Mass and electron densities in the inner magnetosphere during a prolonged disturbed interval. Geophysical Research Letters, 34 (2), L02108. 5, pp. 10.1029/2006GL028254

Seppala, A.; Clilverd, M.A.; Rodger, C.J.. 2007 NOx enhancements in the middle atmosphere during 2003-2004 polar winter: relative significance of solar proton events and the aurora as source. Journal of Geophysical Research, 112 (D23), D23303. 11, pp. 10.1029/2006JD008326

Thomson, N.R.; Clilverd, M.A.; Mcrae, W.M.. 2007 Nighttime ionospheric D-region parameters from VLF phase and amplitude. Journal of Geophysical Research, 112 (A7), A07304. 14, pp. 10.1029/2007JA012271

Rodger, Craig J.; Clilverd, Mark A.; Thomson, Neil R.; Gamble, Rory J.; Seppala, Annika; Turunen, Esa; Meredith, Nigel P.; Parrot, Michel; Sauvaud, Jean Andre; Berthelier, Jean-Jacques. 2007 Radiation belt electron precipitation into the atmosphere: Recovery from a geomagnetic storm. Journal of Geophysical Research, 112 (11), A11307. 12, pp. 10.1029/2007JA012383

Rodger, C.J.; Clilverd, M.A.; Nunn, D.; Verronen, P.T.; Bortnik, J.; Turunen, E.. 2007 Storm time short-lived bursts of relativistic electron precipitation detected by subionospheric radio wave propagation. Journal of Geophysical Research, 112 (A7). 11, pp. 10.1029/2007JA012347

Clilverd, M.A.; Seppala, A.; Rodger, C.J.; Thomson, N.R.; Lichtenberger, J.; Steinbach, P.. 2007 Temporal variability of the descent of high-alitutude NOx inferred from ionospheric data. Journal of Geophysical Research, 112 (A9), A09307. 10, pp. 10.1029/2006JA012085

Ulich, T.; Clilverd, M.A.; Jarvis, M.J.; Rishbeth, H.. 2007 Unravelling signs of global change in the ionosphere. In: Lilensten, J., (ed.) Space weather: research towards applications in Europe (2007). Dordrecht, Springer, 95-105. (Astrophysics and Space Science, 344).

2006

Seppala, A.; Verronen, P.T.; Sofieva, V.F.; Tamminen, J.; Kyrola, E.; Rodger, C.J.; Clilverd, M.A.. 2006 Destruction of the tertiary ozone maximum during a solar proton event. Geophysical Research Letters, 33 (7), L07804. 4, pp. 10.1029/2005GL025571

Rodger, Craig J.; Clilverd, Mark A.; Verronen, Pekka T.; Ulich, Thomas; Jarvis, Martin J.; Turunen, Esa. 2006 Dynamic geomagnetic rigidity cutoff variations during a solar proton event. Journal of Geophysical Research, 111 (A4), A04222. 12, pp. 10.1029/2005JA011395

Clilverd, Mark A.; Seppala, Annika; Rodger, Craig J.; Verronen, Pekka T.; Thomson, Neil R.. 2006 Ionospheric evidence of thermosphere-to-stratosphere descent of polar NOx. Geophysical Research Letters, 33 (19), L19811. 5, pp. 10.1029/2006GL026727

Clilverd, Mark A.; Seppala, Annika; Rodger, Craig J.; Thomson, Neil R.; Verronen, Pekka T.; Turunen, Esa; Ulich, Thomas; Lichtenberger, Janos; Steinbach, Peter. 2006 Modeling polar ionospheric effects during the October-November 2003 solar proton events. Radio Science, 41 (2), RS2001. 15, pp. 10.1029/2005RS003290

Meredith, Nigel P.; Horne, Richard B.; Clilverd, Mark A.; Horsfall, David; Thorne, Richard M.; Anderson, Roger R.. 2006 Origins of plasmaspheric hiss. Journal of Geophysical Research, 111 (A9), A09217. 12, pp. 10.1029/2006JA11707

Clilverd, Mark; Clarke, Ellen; Ulich, T; Rishbeth, H; Jarvis, Martin. 2006 Predicting Solar Cycle 24 and beyond. Space Weather, 4. S09005. 10.1029/2005SW000207

Menk, F.W.; Clilverd, M.A.; Yearby, K.H.; Milinevski, G.; Thomson, N.R.; Rose, M.C.. 2006 ULF Doppler oscillation of L = 2.5 flux tubes. Journal of Geophysical Research, 111 (A7), A07205. 12, pp. 10.1029/2005JA011192

Rodger, C.J.; Clilverd, M.A.; Ulich, T.; Verronen, P.T.; Turunen, E.; Thomson, N.R.. 2006 The atmospheric implications of radiation belt remediation. Annales Geophysicae, 24 (7). 2025-2041. 10.5194/angeo-24-2025-2006

Clilverd, Mark A.; Rodger, Craig J.; Ulich, Thomas. 2006 The importance of atmospheric precipitation in storm-time relativistic electron flux drop outs. Geophysical Research Letters, 33 (1), L01102. 5, pp. 10.1029/2005GL024661

2005

Verronen, Pekka T.; Seppala, Annika; Clilverd, Mark A.; Rodger, Craig J.; Kyrola, Erkki; Enell, Carl-Fredrik; Ulich, Thomas; Turunen, Esa. 2005 Diurnal variation of ozone depletion during the October–November 2003 solar proton events. Journal of Geophysical Research, 110 (A9), A09S32. 12, pp. 10.1029/2004JA010932

Thomson, Neil R.; Rodger, Craig J.; Clilverd, Mark A.. 2005 Large solar flares and their ionospheric D region enhancements. Journal of Geophysical Research, 110 (A6), A06306. 10, pp. 10.1029/2005JA011008

Rodger, C.J.; Clilverd, M.A.; Thomson, N.R.; Nunn, D.; Lichtenberger, J.. 2005 Lightning driven inner radiation belt energy deposition into the atmosphere: regional and global estimates. Annales Geophysicae, 23 (11). 3419-3430. 10.5194/angeo-23-3419-2005

Clilverd, Mark A.; Rodger, Craig J.; Ulich, Thomas; Seppala, Annika; Turunen, Esa; Botman, Aurelein; Thomson, Neil R.. 2005 Modeling a large solar proton event in the southern polar atmosphere. Journal of Geophysical Research, 110 (A9), A09307. 7, pp. 10.1029/2004JA010922

Rose, Mike C.; Clilverd, Mark A.; Jarvis, Martin J.; Rodwell, Shane. 2005 Polar mesosphere summer echo detection using a dynasonde. Radio Science, 40 (6), RS6003. 7, pp. 10.1029/2005RS003249

Jarvis, Martin J.; Clilverd, Mark A.; Rose, Mike C.; Rodwell, Shane. 2005 Polar mesosphere summer echoes (PMSE) at Halley (76°S, 27°W), Antarctica. Geophysical Research Letters, 32 (6), L06816. 5, pp. 10.1029/2004GL021804

Clilverd, Mark A.; Clarke, Ellen; Ulich, Thomas; Linthe, Joachim; Rishbeth, Henry. 2005 Reconstructing the long-term aa index. Journal of Geophysical Research, 110 (A7), A07205. 7, pp. 10.1029/2004JA010762

2004

Rodger, C.J.; Nunn, D.; Clilverd, M.A.. 2004 Investigating radiation belt losses though numerical modelling of precipitating fluxes. Annales Geophysicae, 22 (10). 3657-3667. 10.5194/angeo-22-3657-2004

Chu, Xinzhao; Nott, Graeme J.; Espy, Patrick J.; Gardner, Chester S.; Diettrich, Jan C.; Clilverd, Mark A.; Jarvis, Martin J.. 2004 Lidar observations of polar mesospheric clouds at Rothera, Antarctica (67.5 degrees S, 68.0 degrees W). Geophysical Research Letters, 31 (2), L02114. 5, pp. 10.1029/2003GL018638

Menk, F.W.; Mann, I.R.; Smith, A.J.; Waters, C.L.; Clilverd, M.A.; Milling, D.K.. 2004 Monitoring the plasmapause using geomagnetic field line resonances. Journal of Geophysical Research, 109 (A4), A04216. 10.1029/2003JA010097

Clilverd, M.A.; Rodger, C.J.; Nunn, D.. 2004 Radiation belt electron precipitation fluxes associated with lightning. Journal of Geophysical Research, 109 (A12), A12208. 10.1029/2004JA010644

Rodger, Craig J.; McCormick, Robert J.; Clilverd, Mark A.. 2004 Testing the importance of precipitation loss mechanisms in the inner radiation belt. Geophysical Research Letters, 31 (10), L10803. 5, pp. 10.1029/2004GL019501

Jones, G.O.L.; Clilverd, M.A.; Espy, P.J.; Chew, S.; Fritts, D.C.; Riggin, D.M.. 2004 An alternative explanation of PMSE-like scatter in MF radar data. Annales Geophysicae, 22 (8). 2715-2722.

Nunn, D.; Clilverd, M.A.; Rodger, C.J.; Thomson, N.R.. 2004 The impact of PMSE and NLC particles on VLF propagation. Annales Geophysicae, 22 (5). 1563-1574. 10.5194/angeo-22-1563-2004

2003

Ulich, Thomas; Clilverd, Mark A.; Rishbeth, Henry. 2003 Determining long-term change in the ionosphere. Eos. Transactions, American Geophysical Union, 84 (52). 581-585. 10.1029/2003EO520002

Clilverd, M.A.; Menk, F.W.; Milinevski, G.; Sandel, B.R.; Goldstein, J.; Reinisch, B.W.; Wilford, C.R.; Rose, M.C.; Thomson, N.R.; Yearby, K.H.; Bailey, G.J.; Mann, I.R.; Carpenter, D.L.. 2003 In situ and ground-based intercalibration measurements of plasma density at L = 2.5. Journal of Geophysical Research, 108 (A10), 1365. 10, pp. 10.1029/2003JA009866

Clilverd, M.A.; Ulich, T.; Jarvis, M.J.. 2003 Residual solar cycle influence on trends in ionospheric F2-layer peak height. Journal of Geophysical Research, 108 (A12), 1450. 8, pp. 10.1029/2003JA009838

Rodger, Craig J.; Clilverd, Mark A.; McCormick, Robert J.. 2003 Significance of lightning-generated whistlers to inner radiation belt electron lifetimes. Journal of Geophysical Research, 108 (A12), 1462. 14, pp. 10.1029/2003JA009906

Clilverd, Mark A.; Clarke, Ellen; Rishbeth, Henry; Clark, Toby D.G.; Ulich, Thomas. 2003 Solar activity levels in 2100. Astronomy and Geophysics, 44 (5). 20-22. 10.1046/j.1468-4004.2003.44520.x

Dent, Zoë; Mann, I.R.; Menk, F.W.; Goldstein, J.; Wilford, C.R.; Clilverd, M.A.; Ozeke, L.G.. 2003 A coordinated ground-based and IMAGE satellite study of quiet-time plasmaspheric density profiles. Geophysical Research Letters, 30 (12), 1600. 4, pp. 10.1029/2003GL016946

2002

Rodger, Craig J.; Clilverd, Mark A.; Dowden, Richard L.. 2002 D region reflection height modification by whistler-induced electron precipitation. Journal of Geophysical Research, 107 (A7), 1145. 11, pp. 10.1029/2001JA000311

Clilverd, Mark A.; Nunn, David; Lev-Tov, Sean J.; Inan, Umran S.; Dowden, Richard L.; Rodger, Craig J.; Smith, Andy J.. 2002 Determining the size of lightning-induced electron precipitation patches. Journal of Geophysical Research, 107 (A8), 1168. 11, pp. 10.1029/2001JA000301

Rodger, Craig J.; Clilverd, Mark A.. 2002 Inner radiation belt electron lifetimes due to whistler-induced electron precipitation (WEP) driven losses. Geophysical Research Letters, 29 (19), 1924. 4, pp. 10.1029/2002GL015795

Jarvis, M.J.; Clilverd, M.A.; Ulich, Th.. 2002 Methodological influences on F-region peak height trend analyses. Physics and Chemistry of the Earth, 27 (6-8). 589-594. 10.1016/S1474-7065(02)00041-4

Clilverd, Mark A; Clark, Toby D.G.; Clarke, Ellen; Rishbeth, Henry; Ulich, Thomas. 2002 The causes of long-term change in the aa index. Journal of Geophysical Research, 107 (A12), SSH4. 10.1029/2001JA000501

2001

Watkins, N.W.; Bharmal, N.A.; Clilverd, M.A.; Smith, A.J.. 2001 Comparison of VLF sferics intensities at Halley, Antarctica, with tropical lightning and temperature. Radio Science, 36 (5). 1053-1064. 10.1029/2000RS002367

Dowden, Richard; Rodger, Craig; Brundell, James; Clilverd, Mark. 2001 Decay of whistler-induced electron precipitation and cloud-ionosphere electrical discharge Trimpis: observations and analysis. Radio Science, 36 (1). 151-169. 10.1029/1999RS002297

Clilverd, Mark A.; Rodger, Craig J.; Thomson, Neil R.; Yearby, Keith H.. 2001 Investigating the possible association between thunderclouds and plasmaspheric ducts. Journal of Geophysical Research, 106 (A12). 29771-29781. 10.1029/2001JA000081

Watkins, N.W.; Clilverd, M.A.; Smith, A.J; Rodger, C.J.; Bharmal, N.A.; Yearby, K.H.. 2001 Lightning atmospherics count rates observed at Halley, Antarctica. Journal of Atmospheric and Solar-Terrestrial Physics, 63 (10). 993-1003. 10.1016/S1364-6826(01)00009-8

Rodger, Craig J.; Cho, Mengu; Clilverd, Mark A.; Rycroft, Michael J.. 2001 Lower ionospheric modification by lightning-EMP: simulation of the night ionosphere over the United States. Geophysical Research Letters, 28 (2). 199-202. 10.1029/2000GL011951

Thomson, Neil R.; Clilverd, Mark. 2001 Solar flare induced ionospheric D-region enhancements from VLF amplitude observations. Journal of Atmospheric and Solar-Terrestrial Physics, 63 (16). 1729-1737. 10.1016/S1364-6826(01)00048-7

Clilverd, Mark A.; Rodger, Craig J.; Thomson, Neil R.; Lichtenberger, János; Steinbach, Péter; Cannon, Paul; Angling, Matthew J.. 2001 Total solar eclipse effects on VLF signals: observations and modeling. Radio Science, 36 (4). 773-788. 10.1029/2000RS002395

Smith, A.J; Grieve, M.B; Clilverd, M.A.; Rodger, C.J. 2001 A quantitative estimate of the ducted whistler power within the outer plasmasphere. Journal of Atmospheric and Solar-Terrestrial Physics, 63 (1). 61-74. 10.1016/S1364-6826(00)00128-0

2000

Rodger, Craig J.; Clilverd, Mark A.; Yearby, Keith H.; Smith, Andy J.. 2000 Is magnetospheric line radiation man-made? Journal of Geophysical Research, 105 (A7). 15981-15990. 10.1029/1999JA000413

Clilverd, Mark A.; Jenkins, Barbara; Thomson, Neil R.. 2000 Plasmaspheric storm time erosion. Journal of Geophysical Research, 105 (A6). 12997-13008. 10.1029/1999JA900497

Thomson, Neil R.; Clilverd, Mark A.. 2000 Solar cycle changes in daytime VLF subionospheric attenuation. Journal of Atmospheric and Solar-Terrestrial Physics, 62 (7). 601-608. 10.1016/S1364-6826(00)00026-2

Rodger, Craig J.; Clilverd, Mark A.; Yearby, Keith H.; Smith, Andy J.. 2000 Temporal properties of magnetospheric line radiation. Journal of Geophysical Research, 105 (A1). 329-336. 10.1029/1999JA900420

Rose, Mike C.; Jarvis, Martin J.; Clilverd, Mark A.; Maxfield, David J.; Rosenberg, Theodore J.. 2000 The effect of snow accumulation on imaging riometer performance. Radio Science, 35 (5). 1143-1153. 10.1029/2000RS002314

Clilverd, M.A.; Jenkins, B.; Thomson, N.R.. 2000 The impact of tourists on gentoo penguins at Port Lockroy, Antarctic Peninsula. In: Davison, W.; Howard-Williams, C.; Broady, P., (eds.) Antarctic ecosystems: models for wider ecological understanding.SCAR Symposium on Antarctic Biology, 7th, Christchurch, 1998. Christchurch, New Zealand, New Zealand Natural Sciences, 319-323.

1999

Clilverd, Mark A.; Watkins, Nicholas W.; Smith, Andy J.; Yearby, Keith H.. 1999 Diurnal and annual variations in 10-kHz radio noise. Radio Science, 34 (4). 933-938. 10.1029/1999RS900009

Clilverd, Mark A.; Rodger, Craig J.; Thomson, Neil R.. 1999 Investigating seismoionospheric effects on a long subionospheric path. Journal of Geophysical Research, 104 (A12). 28171-28179. 10.1029/1999JA900285

Clilverd, Mark A.; Yeo, Richard F.; Nunn, David; Smith, Andy J.. 1999 Latitudinally dependent Trimpi effects: modeling and observations. Journal of Geophysical Research, 104 (A9). 19881-19887. 10.1029/1999JA900108

Rodger, Craig J.; Clilverd, Mark A.; Yearby, Keith H.; Smith, Andy J.. 1999 Magnetospheric line radiation observations at Halley, Antarctica. Journal of Geophysical Research, 104 (A8). 17441-17447. 10.1029/1999JA900153

Rodger, Craig J.; Clilverd, Mark A.; Thomson, Neil R.. 1999 Modeling of subionospheric VLF signal perturbations associated with earthquakes. Radio Science, 34 (5). 1177-1185. 10.1029/1999RS900061

Menk, F. W.; Orr, D.; Clilverd, M. A.; Smith, A. J.; Waters, C. L.; Milling, D. K.; Fraser, B. J.. 1999 Monitoring spatial and temporal variations in the dayside plasmasphere using geomagnetic field line resonances. Journal of Geophysical Research, 104 (A9). 19955-19969. 10.1029/1999JA900205

Clilverd, Mark A.; Thomson, Neil R.; Rodger, Craig J.. 1999 Sunrise effects on VLF signals propagating over a long north-south path. Radio Science, 34 (4). 939-948. 10.1029/1999RS900052

1998

Watkins, Nicholas W.; Clilverd, Mark A.; Smith, Andy J.; Yearby, Keith H.. 1998 A 25-year record of 10 kHz sferics noise in Antarctica: Implications for tropical lightning levels. Geophysical Research Letters, 25 (23). 4353-4356. 10.1029/1998GL900146

Clilverd, M.A.; Clark, T.D.G.; Clarke, E.; Rishbeth, H.. 1998 Increased magnetic storm activity from 1868 to 1995. Journal of Atmospheric and Solar-Terrestrial Physics, 60 (10). 1047-1056. 10.1016/S1364-6826(98)00049-2

This list was generated on Fri Dec 19 19:39:22 2014 GMT.