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Research Publications by the Space Physics Group

This webpage is no longer being maintained. Please go to our new webpage, and update any links to this page: http://www.physics.otago.ac.nz/nx/space/space-physics-home.html

2010

·      Clilverd, M A, C J Rodger, S Dietrich, T Raita, Th Ulich, E Clarke, A W P Thomson, and A J Kavanagh, High latitude geomagnetically induced current events observed on very low frequency radio wave receiver systems, Radio Sci., doi:10.1029/2009RS004215, (in press), 2010.

·      Howitt, O J A, V G N Revol, I J Smith, and C J Rodger, Carbon emissions from international cruise ship passengers’ travel to and from New Zealand, Energy Policy, doi:10.1016/j.enpol.2009.12.050, (in press), 2010.

·      Rodger, C J, M A Clilverd, J Green, and M-M Lam, Use of POES SEM-2 observations to examine radiation belt dynamics and energetic electron precipitation in to the atmosphere, J. Geophys. Res., doi:10.1029/ 2008JA014023, (in press), 2010.

2009

·      Seppälä, A, C E Randall, M A Clilverd, E Rozanov, and C J Rodger, Geomagnetic activity and polar surface level air temperature variability, J. Geophys. Res., 114, A10312, doi:10.1029/2008JA014029, 2009.

·      Thomson, N R, and W M McRae, Nighttime ionospheric D region: Equatorial and Non-equatorial, J. Geophys. Res., 114, A08305, doi:10.1029/2008JA014001, 2009.

·      Collier, A B, A R W Hughes, J Lichtenberger, P Steinbach, J Öster, and C J Rodger, Correlation between global lightning and whistlers observed at Tihany, Hungary, J. Geophys. Res., 114, A07210, doi:10.1029/2008JA013863, 2009.

·      Nĕmec, F, M Parrot, O Santolík, C J Rodger, M J Rycroft, M Hayosh, D Shklyar, and A Demekhov, Survey of Magnetospheric Line Radiation (MLR) events observed by the DEMETER spacecraft, J. Geophys. Res., 114, A05203, doi:10.1029/2008JA014016, 2009.

·      Rodger, C J, J B Brundell, R H Holzworth, and E H Lay, Growing Detection Efficiency of the World Wide Lightning Location Network, Am. Inst. Phys. Conf. Proc., Coupling of thunderstorms and lightning discharges to near-Earth space: Proceedings of the Workshop, Corte (France), 23–27 June 2008, 1118, 15-20, doi:10.1063/1.3137706, 2009.

·      Reeves, G, A Chan, and C J Rodger, New Directions for Radiation Belt Research, Space Weather, 7(7), S07004, doi: 10.1029/2008SW000436, 2009.

·      Arnone, E, A Kero, C-F Enell, M Carlotti, C J Rodger, E Papandrea, N F Arnold, B M Dinelli, M Ridolfi, and E Turunen, Seeking sprite–induced signatures in remotely sensed middle atmosphere NO2: latitude and time variations, Plasma Sources Sci. Tech., 18, 034014, 2009.

·      Clilverd, M A, A Seppälä, C J Rodger, M G Mlynczak, and J U Kozyra,Additional stratospheric NOx production by relativistic electron precipitation during the 2004 spring NOx descent event, J. Geophys. Res., 114, A04305, doi:10.1029/2008JA013472, 2009.

·      Rodger, C J, J Lichtenberger, G McDowell, and N R Thomson, Automatic whistler detector: Operational results from New Zealand, Radio Sci., 44, RS2004, doi:10.1029/2008RS003957 2009.

·      Clilverd, M A, C J Rodger, N R Thomson, J B Brundell, Th Ulich, J Lichtenberger, N Cobbett, A B Collier, F W Menk, A Seppälä, P T Verronen, and E Turunen, Remote sensing space weather events: the AARDDVARK network, Space Weather, 7, S04001, doi: doi:10.1029/2008SW000412, 2009.

·      Smith, I J, and C J Rodger, Carbon emission offsets for aviation generated emissions due to international travel to and from New Zealand, Energy Policy, 37(9), 3438–3447, doi:10.1016/j.enpol.2008.10.046, 2008.   Full article on line from Journal of Energy Policy.

·      Turunen, E, P T Verronen, A Seppälä, C J Rodger, M A Clilverd, J Tamminen, C F Enell and Th Ulich, Impact of different precipitation energies on NOX generation during geomagnetic storms, J. Atmos Sol.-Terr. Phys., 71, pp. 1176-1189, doi:10.1016/j.jastp.2008.07.005, 2009.

2008

·      Rodger, C J, P T Verronen, M A Clilverd, A Seppälä, and E Turunen, Significance of the Carrington Event Solar Proton Event to the neutral atmosphere, J. Geophys. Res., 113, D23302, doi:10.1029/2008JD010702, 2008.

·      Seppälä, A, M A Clilverd, C J Rodger, P T Verronen, and E Turunen, The effects of hard spectra solar proton events on the middle atmosphere, J. Geophys. Res., 113, A11311, doi:10.1029/2008JA013517, 2008.

·      Clilverd, M A, C J Rodger, J B Brundell, N Cobbett, J Bähr, T Moffat-Griffin, A J Kavanagh, A Seppälä, N R Thomson, R H W Friedel, and F W Menk, Energetic electron precipitation during sub-storm injection events: high latitude fluxes and an unexpected mid-latitude signature, J. Geophys. Res., 113, A10311, doi: 10.1029/ 2008JA013220, 2008.

·      Gamble, R J, C J Rodger, M A Clilverd, J A Sauvaud, N R Thomson, S L Stewart, R J McCormick, M Parrot, and J-J Berthelier, Radiation belt electron precipitation by manmade VLF transmissions, J. Geophys. Res, 113, A10211, doi: 10.1029/2008JA013369, 2008. Note that a mix-up involving the order of the figures in the paper as published caused this correction to be produced  (Gamble et al. Correction to “Radiation belt electron precipitation by man-made VLF transmissions”, J. Geophys. Res., 114, A05205, doi:10.1029/2009JA014304, 2009).

·      Rodger, C J, T Raita, M A Clilverd, A Seppälä, S Dietrich, N R Thomson, and Th Ulich, Observations of relativistic electron precipitation from the radiation belts driven by EMIC Waves, Geophys. Res. Lett., 35, L16106, doi:10.1029/2008GL034804, 2008.

·      Sauvaud, J A, R Maggilol, C Jacquey, M Parrot, J-J Berthelier, R J Gamble, and C J Rodger, Radiation belt electron precipitation due to VLF transmitters: satellite observations, Geophys. Res. Lett., 35, L09101, doi:10.1029/2008GL033194, 2008.

·      Dowden, R L, R H Holzworth, C J Rodger, J Lichtenberger, N R Thomson, A R Jacobson, E Lay, J B Brundell, T J Lyons, S O'Keefe, Z Kawasaki, C Price, V Prior, P Ortega, J Weinman, Y Mikhailov, R Woodman, X Qie, G Burns, A Collier, O Pinto Junior, R Diaz, C Adamo, E R Williams, S Kumar, G B Raga, J M Rosado, E E Avila, M A Clilverd, T Ulich, P Gorham, T J G Shanahan, T Osipowicz, G Cook, and Y Zhao, World-Wide Lightning Location Using VLF Propagation in the Earth-Ionosphere Waveguide, IEEE Antennas and Propagation Mag., 50(5), 40-60, 2008.

·      Rodger, C J, and M A Clilverd, Magnetospheric physics: Hiss from the chorus, Nature, 452 (7183), 41-42, doi:10.1038/452041a, 2008.

·      Rodger, C J, A Seppälä, and M A Clilverd, Significance of Transient Luminous Events to neutral chemistry: experimental measurements, Geophys. Res. Lett., 35, L07803, doi:10.1029/2008GL033221, 2008.

·      Arnone, E, A Kero, B M Dinelli, C-F Enell, N F Arnold, E Papandrea, C J Rodger, M Carlotti, M Ridolfi, and E Turunen, Seeking sprite–induced signatures in remotely sensed middle atmosphere NO2, Geophys. Res. Lett., 35, L05807, doi:10.1029/2007GL031791, 2008.

·      Clilverd, M. A., C. J. Rodger, R. J. Gamble, N. P. Meredith, M. Parrot, J.-J. Berthelier, and N. R. Thomson, Ground based transmitter signals observed from space: ducted or nonducted?, J. Geophys. Res., 113, A04211, doi:10.1029/2007JA012602, 2008.

·      Kumar, S, A Kumar, and C J Rodger, Subionospheric early VLF perturbations observed at Suva: VLF detection of red sprites in the day, J. Geophys. Res., 113, A03106, http://dx.doi.org/10.1029/2007JA012750, 2008.

2007

·      Verronen, P T, C J Rodger, H M Pickett, M A Clilverd, and E Turunen, Latitudinal extent of the January 2005 solar proton event in the Northern Hemisphere from satellite observations of hydroxyl, Annales Geophys., 25, 2203-2215, 2007.

·      Clilverd, M A, N P Meredith, R B Horne, S A Glauert, R R Anderson, N R Thomson, F W Menk, and B R Sandel, Longitudinal and seasonal variations in plasmaspheric electron density: Implications for electron precipitation, J. Geophys. Res., 112, A11210, doi:10.1029/2007JA012416, 2007.

·      Rodger, C J, M A Clilverd, N R Thomson, R J Gamble, A Seppälä, E Turunen, N P Meredith, M Parrot, J A Sauvaud, and J-J Berthelier, Radiation belt electron precipitation into the atmosphere: recovery from a geomagnetic storm, J. Geophys. Res., 112, A11307, doi:10.1029/2007JA012383, 2007.

·      Clilverd, M A, C J Rodger, R M Millan, J G Sample, M Kokorowski, M P McCarthy, Th Ulich, T Raita, A J Kavanagh, and E Spanswick, Energetic particle precipitation into the middle atmosphere triggered by a coronal mass ejection, J. Geophys. Res., 112, A11210, doi:10.1029/2007JA012395, 2007.

·      Seppälä, A, M A Clilverd, and C J Rodger, NOX enhancements in the middle atmosphere during 2003-2004 polar winter: Relative significance of solar proton events and the aurora as a source, J. Geophys. Res., D23303, doi:10.1029/2006JD008326, 2007.

·      Rodger, C J, C F Enell, E Turunen, M A Clilverd, N R Thomson, and P T Verronen, Lightning-driven inner radiation belt energy deposition into the atmosphere: Implications for ionisation-levels and neutral chemistry, Annales Geophys., 25, 1745-1757, 2007.

·      Clilverd, M A, C J Rodger, T Moffat-Griffin, and P T Verronen, Improved dynamic geomagnetic rigidity cutoff modeling: testing predictive accuracy, J. Geophys. Res., 112, A08302, doi:10.1029/2007JA012410, 2007.

·      Lay, E H, A R Jacobson, R H Holzworth, C J Rodger, and R L Dowden, Local time variation in land/ocean lightning count rates as measured by the World Wide Lightning Location Network, J. Geophys. Res., 112, D13111, doi:10.1029/2006JD007944, 2007.

·      Thomson, N R, M A Clilverd, W M McRae, Nighttime ionospheric D region parameters from VLF phase and amplitude, J. Geophys. Res., 112, A07304, doi:10.1029/2007JA012271, 2007.

·      Rodger, C J, M A. Clilverd, D Nunn, P T Verronen, J Bortnik, and E Turunen, Storm-time short-lived bursts of relativistic electron precipitation detected by subionospheric radio wave propagation, J. Geophys. Res., 112, A07301, doi:10.1029/2007JA012347, 2007.

·      Clilverd, M A, A Seppälä, C J Rodger, N R Thomson, J Lichtenberger, and P Steinbach, Temporal variability of the descent of high-altitude NOX, J. Geophys. Res., 112, A09307, doi:10.1029/2006JA012085, 2007.

·       Rodger, C J, and M A Clilverd, Comment on “Preseismic Lithosphere-Atmosphere-Ionosphere Coupling”, Eos Transactions; American Geophysical Union, 88(23), 248, 5 June 2007.

2006

·      Rodger, C J, S W Werner, J B Brundell, N R Thomson, E H Lay, R H Holzworth, and R L Dowden, Detection efficiency of the VLF World-Wide Lightning Location Network (WWLLN): Initial case study, Annales Geophys., 24, 3197-3214, 2006.

·      Clilverd, M A, A Seppälä, C J Rodger, P T Verronen, and N R Thomson, Ionospheric evidence of thermosphere-to-stratosphere descent of polar NOX, Geophys. Res. Lett., 33, L19811, doi:10.1029/2006GL02672,7 2006.

·       Rodger, C J, M A Clilverd, Th Ulich, P T Verronen, E Turunen, and N R Thomson, The atmospheric implications of Radiation Belt Remediation, Annales Geophys., 24(7), 2025-2041, SRef-ID: 1432-0576/ag/2006-24-2025, 2006. MEDIA RELEASE

·       Seppälä, A, P T Verronen, V F Sofieva, J Tamminen, E Kyrölä, C J Rodger, and M.A Clilverd,  Destruction of the tertiary ozone maximum during a solar proton event, Geophys. Res. Lett., 33, L07804, doi:10.1029/2005GL025571, 2006.

·       Rodger, C J, M A Clilverd, P T Verronen, Th Ulich, M J Jarvis, and E Turunen, Dynamic geomagnetic rigidity cutoff variations during a solar proton event, J. Geophys. Res.,111, A04222, doi:10.1029/2005JA011395, 2006.

·      Verronen, P T, Th Ulich, E Turunen, and C J Rodger, Sunset transition of negative charge in the D-region ionosphere during high-ionization conditions, Ann. Geophys.,  24(1), 187-202, 2006.

·      Clilverd, M A, A Seppälä, C J Rodger, N R Thomson, P T Verronen, E Turunen, Th Ulich, J Lichtenberger, and P Steinbach, Modeling polar ionospheric effects during the October-November 2003 solar proton events, Radio Sci., 41(2), RS2001, doi:10.1029/2005RS003290, 2006.

·      Clilverd, M A , C J Rodger and Th Ulich, The importance of atmospheric precipitation in storm-time relativistic electron flux drop outs, Geophys. Res. Lett., 33, L01102, doi:10.1029/2005GL024661, 2006.

·       Rodger, C J, and R J McCormick, Remote sensing of the upper atmosphere by VLF, in Sprites, Elves and Intense Lightning Discharges: Proceedings of the NATO Advanced Study Institute from 21-30 July 2004, edited by M. Füllekrug, Nato Science Series II (Mathematics, Physics and Chemistry), Vol. 225, Hardcover ISBN 1-4020-4627-8, Springer, 2006.

2005

·       Rodger, C J, M A Clilverd, N R Thomson, D Nunn, and J Lichtenberger, Lightning driven Inner radiation belt energy deposition into the atmosphere: Regional and Global Estimates, Annales Geophys.,  23(11), 3419-3430, 2005.

·       Clilverd, M A, C J Rodger, Th Ulich, A Seppälä, E Turunen, A Botman, and N R Thomson, Modelling a large solar proton event in the southern polar cap, J. Geophys. Res., 110(A9), doi: 10.1029/2004JA010922, 2005.

·       Verronen, P T, A Seppälä, M A Clilverd, C J Rodger, E Kyrölä, C-F Enell, Th Ulich, and E Turunen, Diurnal variation of ozone depletion during the October-November 2003 solar proton event, J. Geophys. Res., Vol. 110, No. A9, doi:10.1029/2004JA010932, 2005.

·       Werner, S W, C J Rodger, and N R Thomson, Identifying power line harmonic radiation from an electrical network, Ann. Geophys., 23(6), 2107-2116, 2005.

·       Thomson, N R, C J Rodger, and M A Clilverd, Large solar flares and the ionospheric D-region enhancements, J. Geophys. Res., 110, A06306, doi:10.1029/2005JA011008, 2005.

·       Rodger, C J, J B Brundell, and R L Dowden, Location accuracy of long distance VLF lightning location network: Post algorithm upgrade, Ann. Geophys., 23(2), 277-290, 2005.

·       Yoav, Y, C Price, B Ziv, P L Israelevich, D D Sentman, F T Sao-Sabbas, A D Devir, M Sato, C J Rodger, M Moalem, E Greenberg, and O Yaron, Space Shuttle observation of an unusual transient atmospheric emission, Geophys. Res. Lett., 32(2), 10.1029/2004GL021551, 2005.

2004

·       Clilverd, M A, C J Rodger, and D Nunn, Radiation belt electron precipitation fluxes associated with lightning, J. Geophys. Res., 109(12), A12208, 10.1029/2004JA010644, 2004. 

·       Rodger, C J, D Nunn, and M A Clilverd, Investigating radiation belt losses though numerical modelling of precipitating fluxes, Ann. Geophys., 22(10), 3657-3667, 2004.             

·       Harvey, S G P, J L Bahr, A temperature-controlled complementary metal oxide semiconductor camera, Proc. Inst. Mech. Eng. B., 218(9), 1217-1222, 2004.

·       Rodger, C J, R  J McCormick, and M A Clilverd, Testing the importance of precipitation loss mechanisms in the inner radiation belt, Geophys. Res. Lett., 31(10), L10803, 10.1029/2004GL019501, 2004.   

·       Nunn, D, M A Clilverd, C J Rodger, and N R Thomson, The impact of PMSE and NLC particles on VLF propagation, Ann. Geophys., 22(3), 747-758, 2004.

·       Rodger, C J., J B Brundell, R L Dowden, and N R Thomson, Location accuracy of long distance VLF lightning location network, Ann. Geophys., 22, 747-758,  2004.

·       Thomson, N R, C J Rodger, and R L Dowden, Ionosphere gives size of greatest solar flare, Geophys. Res. Lett., 31(6), L06803, 10.1029/2003GL019345, 2004.

·       Lay, E H, R H Holzworth, C J Rodger, J N Thomas, O Pinto, and R L Dowden, WWLL Global Lightning Detection System: Regional Validation Study in Brazil, Geophys. Res. Lett., 31(3), L03102, 10.1029/2003GL018882, 2004.

·       Thomson, N R , and W M McRae, Solar flare induced ionospheric D-region enhancements from VLF phase and amplitude observations J. Atmos. Sol.-Terr. Phys., 66(1), 77-87, 2004.

2003

·       Rodger, C J, M A Clilverd, and R J McCormick, Significance of lightning generated whistlers to inner radiation belt electron lifetimes,  J. Geophys. Res.,108(12), 1462, 10.1029/2003JA009906, 2003.

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

·       Dowden, R L, and C J Rodger, True global mapping of lightning using widely spaced VLF receivers on the ground, Proceedings of the Seventh International Conference on Southern Hemisphere Meteorology and Oceanography, Pg 43-44, American Meteorological Society, Boston, Massachusetts, March 2003.

·       Rodger, C J, Subionospheric VLF perturbations associated with lightning discharges, J. Atmos. Sol. Terr. Phys., 65(5), 591-606, 2003.

2002

·       Brundell, J B, C J Rodger, and R L Dowden, Validation of single station lightning location technique, Radio Sci., 37(4), 10.1029/2001RS002477, 2002.

·       Clilverd, M A, D Nunn, S J Lev-Tov, U S Inan, R L Dowden, C J Rodger, and A J Smith, Determining the size of lightning-induced electron precipitation patches, J. Geophys. Res., 107(8), 10.1029/2001JA000301, 2002.

·       Dowden, R L, J B Brundell, and C J Rodger, VLF lightning location by time of group arrival (TOGA) at multiple sites, J. Atmos. Sol. Terr. Phys., 64, 817-830, 2002.

·       Dowden, R L, and C J Rodger, True Global Mapping of Lightning using Widely Spaced VLF Receivers on the Ground, Proceedings of the 27th General Assembly of the International Union of Radio Science, Maastricht, Holland, (electronic publication on CDROM), 2002.

·       McCormick, R J, C J Rodger, and N R Thomson, Reconsidering the effectiveness of quasi-static thunderstorm electric fields for whistler duct formation, J. Geophys. Res., 107(11), 10.1029/2001JA009219, 2002.

·       McCormick, R J, C J Rodger, and N R Thomson, Reconsidering the effectiveness of quasi-static thunderstorm electric fields for whistler duct formation, Proceedings of the 27th General Assembly of the International Union of Radio Science, Maastricht, Holland, (electronic publication on CDROM), 2002.

·       Rodger, C J, M A Clilverd, and R L Dowden, D-region reflection height modification by whistler-induced electron precipitation (WEP), J. Geophys. Res., 107(7), 10.1029/2001JA000311, 2002.

·       Rodger, C J, and M A Clilverd, Inner radiation belt electron lifetimes due to whistler-induced electron precipitation (WEP) driven losses, Geophys. Res. Lett., 29(19), 10.1029/2002GL015795, 2002.

·       Rodger, C J, N R Thomson, and R L Dowden, Correction to "Are whistler ducts created by thunderstorm electrostatic fields?", J. Geophys. Res., 107(6), 10.1029/2001JA009152, 2002.

·       Rodger, C J, International Space Environment Conference (ISEC01) conference report, Radio Sci. Bulletin, No 300, 49-50, March 2002.

·       Rodger, C J, and N A Russell, Lightning multiplicity measurements by the U. S. National Lightning Detection Network, Proceedings of the 27th General Assembly of the International Union of Radio Science, Maastricht, Holland, (electronic publication on CDROM), 2002.

·       Rodger, C J, M A Clilverd, and R L Dowden, D-region reflection height modification by whistler-induced electron precipitation (WEP), Proceedings of the 27th General Assembly of the International Union of Radio Science, Maastricht, Holland, (electronic publication on CDROM), 2002.

2001

·       Clilverd, M A, C J Rodger, N R Thomson, J Lichtenberger, P Steinbach, P Cannon and M J Angling, Total solar eclipse effects on VLF signals: Observations and modeling, Radio Sci., 36(4), 773-788, 2001.

·       Clilverd, M A, C J Rodger, N R Thomson, and K H Yearby, Investigating the possible association between thunderclouds and plasmaspheric ducts, J. Geophys. Res., 106, 29771-29781, 2001.

·       Dowden, R L, C J Rodger, J B Brundell, and M A Clilverd, Decay of whistler-induced electron precipitation and cloud-ionosphere discharge Trimpis: Observations and analysis, Radio Sci., 36(1), 151-169, 2001.

·       Dowden, R L, C J Rodger, and D Nunn, Minimum sprite plasma density as determine by VLF scattering, IEEE Antennas Propag. Mag., 43(2), 12-24, 2001.

·       Dowden, R L, J B Brundell, and C J Rodger, Global lightning location by VLF, Newsletter on Atmospheric Electricity, 12(1), 13-14, Spring 2001.

·       Rodger, C J, M Cho, M A Clilverd, and M J Rycroft, Lower ionospheric modification by lightning-EMP: Simulation of the nighttime ionosphere over the United States, Geophys. Res. Lett., 28(2), 199-202, 2001.

·       Rodger, C J, Readers' Forum - Lightning, Weather, 56(2), 62-63, 2001.

·       Thomson, N R, and M A Clilverd, Solar flare induced ionospheric D-region enhancements from VLF amplitude observations, J. Atmos. Sol.-Terr. Phys., 63(16), 1729-1737, 2001.


2000

·       Bähr, J L, J B Brundell, S F Hardman, and R L Dowden, Multi-instrument coincident detection of sprites, Phys. Chem. Earth Pt. B, 25(5-6), 417-422, 2000.

·       Barr R, D L Jones, and C J Rodger, ELF and VLF radio waves, J. Atmos. Sol.-Terr. Phys., 62(17-18), 1689-1718, 2000.

·       Clilverd, M A, B Jenkins, and N R Thomson, Plasmaspheric storm time erosion, J. Geophys. Res., 105(A6), 12997-13008, 2000.

·       Hardman, S F, R L Dowden, J B Brundell, J L Bähr, Z I Kawasaki, and C J Rodger, Sprite observations in the Northern Territory of Australia, J. Geophys. Res., 105(D4), 4689-4697, 2000.

·       McRae, W M, and N R Thomson, VLF phase and amplitude: daytime ionospheric parameters, J. Atmos. Sol.-Terr. Phys., 62(7), 609-618, 2000.

·       Thomson, N R, and M A Clilverd, Solar cycle changes in daytime VLF subionospheric attenuation, J Atmos. Sol.-Terr. Phys., 62(7), 601-608, 2000.


1999

·       Clilverd, M A, C J Rodger, and N R Thomson, Investigating seismoionospheric effects on a long subionospheric path, J. Geophys. Res., 104(A12), 28171-28179, 1999.

·       Clilverd, M A, N R Thomson, and C J Rodger, Sunrise effects on VLF signals propagating over a long north-south path, Radio Sci., 34(4), 939-948, 1999.

·       Rodger, C J, Red sprites, upward lightning and VLF perturbations, Rev.Geophys., 37(3), 317-336, 1999.

·       Rodger, C J, M A Clilverd, and N R Thomson, Modeling of subionospheric VLF signal perturbations associated with earthquakes, Radio Sci., 34(5), 1177-1185, 1999.

·       Rodger, C J, R L Dowden, and N R Thomson, Observations of Electromagnetic Activity Associated with Earthquakes by Low-Altitude Satellites, In: M Hayakawa (editor), Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, Terra Scientific Publishing, Tokyo, 697-710, 1999.

·       Rodger, C J, N R Thomson, and J R Wait, VLF scattering from red sprites: Vertical columns of ionization in the Earth-ionosphere waveguide, Radio Sci., 34(4), 913-921, 1999.

·       Rodger, C J, Tribute to Regents' Emeritus Professor James R. Wait, Radio Science Bulletin, 288, 40-41, 1999.


1998

·       Dowden, R L, S F Hardman, C J Rodger, and J B Brundell, Logarithmic decay and Doppler shift of plasma associated with sprites J. Atmos. Sol.-Terr. Phys., 60(7-9), 741-753, 1998.

·       Dowden, R L, and C J Rodger, Mathematical Methods in Electromagnetic Theory (MMET98) conference report, IEEE Antennas Propag. Mag., 40(4), 61-65, 1998.

·       Dowden, R L, C J Rodger, S F Hardman, J L Bahr, J B Brundell, and Z I Kawasaki, Red Sprites in the top end, Australian and New Zealand Physicist, 35(5), 198-201, 1998.

·       Hardman, S F, C J Rodger, R L Dowden, and J B Brundell, Measurements of the VLF scattering pattern of the structured plasma of red sprites, IEEE Antennas Propag. Mag., 40(2), 29-38, 1998.

·       Rodger, C J, James Wait - in memoriam, IEEE Antennas Propag. Mag., 40(5), 72-73, 1998.

·       Rodger, C J, and R L Dowden, Position determination of red sprites by scattering of VLF subionospheric transmissions, Geophys. Res. Lett., 25(3), 281-284, 1998.

·       Rodger, C J, O A Molchanov, and N R Thomson, Relaxation of transient ionization in the lower ionosphere, J. Geophys. Res., 103(A4), 6969-6975, 1998.

·       Rodger, C J, N R Thomson and R L Dowden, Are whistler ducts created by thunderstorm electrostatic fields?, J. Geophys. Res., 103, 2163-2169, 1998.

·       Rodger, C J, N R Thomson and R L Dowden, Testing the formulation of Park and Dejnakarintra [1973] to calculate thunderstorm DC electric fields, J. Geophys. Res, 103, 2170-2178, 1998.

·       Rodger, C J, J R Wait and R L Dowden, VLF scattering from red sprites - theory, J. Atmos. Sol.-Terr. Phys., 60(7-9), 755-763, 1998.

·       Rodger, C J, J R Wait and R L Dowden, Brief Report: Scattering of VLF from an experimentally described sprite, J. Atmos. Sol.-Terr. Phys., 60(7-9), 765-769, 1998.

·       Rodger, C J, J R Wait, R L Dowden, and N R Thomson, Radiating conducting columns inside the Earth-ionosphere waveguide: Application to red sprites J. Atmos. Sol.-Terr. Phys., 60(12), 1193-1204, 1998.


1997

·       Dowden, R L, J B Brundell, and C J Rodger, Temporal evolution of very strong Trimpis observed at Darwin, Australia, Geophys. Res. Lett., 24(19), 2419 - 2422, 1997.

·       Clilverd, M A, N R Thomson, and A J Smith, Ducted whistler-mode signals received at 2 widely spaced locations, Ann. Geophys., 14(6), 619-627, 1997.

·       Dowden, R L, S F Hardman, J B Brundell, J L Bähr, Z I Kawasaki, and K Nomura, Red sprites observed in Australia, IEEE Antennas Propag. Mag., 39(6), 106, 1997.

·       Dowden, R L and C J Rodger, A vertical plasma slab model for determining the lower limit to plasma density in Sprite columns for VLF scatter measurements, IEEE Antennas Propag. Mag., 39(2), 44 - 53, 1997.

·       Dowden, R L and C J Rodger, Decay of a vertical plasma column: A model to explain VLF Sprites, Geophys. Res. Lett., 24(22), 2765 - 2768, 1997.

·       Rodger, C J, J R Wait and R L Dowden, Correction to "Electromagnetic scattering from a group of thin conducting cylinders", Radio Sci., 32(6), 2737, 1997.

·       Rodger, C J, J R Wait and R L Dowden, Electromagnetic scattering from a group of thin conducting cylinders, Radio Sci., 32(3), 907 - 912, 1997.

·       Thomson, N R, M A Clilverd, and A J Smith, Evidence of more efficient whistler-mode transmission during periods of increased magnetic activity, Ann. Geophys., 15(8), 999-1004, 1997.


1996

·       Balmforth, H F, and N R Thomson, Plasmaspheric zonal electric-fields and coupling fluxes from the Dunedin VLF Doppler experiment, for 180-degrees-E, L-approximate-to-2.3, at solstice and equinox, J. Atmos. Terr. Phys., 58(15), 1793-1804, 1996.

·       Barnum, B H, R H Holzworth, and R L Dowden, VLF wave modes determined by the height gains measured during the extended-life-balloon-borne-observatory test flight, Radio Sci., 31(1), 193-210, 1996.

·       Dowden, R L, Distortion of Trimpi shapes by high-altitude winds, J. Geophys. Res., 101(A1), 315-321, 1996.

·       Dowden, R L, Comment on "VLF signatures of ionospheric disturbances associated with sprite", Geophys. Res. Lett., 23(23), 3421-3422, 1996.

·       Dowden, R L, J B Brundell, and W A Lyons, Are VLF rapid onset, rapid decay perturbations produced by scattering off sprite plasma, J. Geophys. Res., 101, 19175-19183, 1996.

·       Dowden, R L, J B Brundell, W A Lyons, and T Nelson, Detection and location of red sprites by VLF scattering of subionospheric transmissions, Geophys. Res. Lett., 23(14), 1737-1740, 1996.

·       Dowden, R L, J B Brundell, C J Rodger, O A Molchanov, W A Lyons and T Nelson, The structure of red sprites determined by VLF scattering, IEEE Antennas Propag. Mag., 38, 7-15, 1996.

·       Ohta, K, T Kitagawa, N Shima, M Hayakawa, and R L Dowden, Characteristics of midlatitude whistler ducts as deduced from ground-based measurements, Geophys. Res. Lett., 23(23), 3301-3304, 1996.

·       Rodger, C. J., R. L. Dowden and N. R. Thomson, A search for ELF/VLF activity associated with earthquakes using ISIS satellite data, J. Geophys. Res., 101, 13369-13378, 1996.


1995

·       Clilverd, M A, N R Thomson, and A J Smith, The effect of the midlatitude ionospheric trough on whistler-mode ducting during magnetic storms, J. Atmos. Terr. Phys., 57(8), 945, 1995.

·       Rodger, C J, N R Thomson and R L Dowden, VLF line radiation observed by satellite, J. Geophys. Res., 100, 5681-5689, 1995.


1994

·       Clilverd, M A, N R Thomson, and A J Smith, The effect of magnetic storm ionospheric processes on whistler mode ducting, J. Atmos. Terr. Phys., 1994.

·       Dowden, R L, C D D Adams, J B Brundell and P E Dowden, Rapid onset, rapid decay (RORD), phase and amplitude perturbations of VLF subionospheric transmissions, J. Atmos. Terr. Phys., 56, 1513-1527, 1994.

·       Young, W F and N R Thomson, Time of day from Omega VLF signals, Meas. Sci. Technol. 5(10), 1202-1209, 1994.


1993

·       Clilverd, M A, T D G Clark, A J Smith, and N R Thomson, Observation of a decrease in mid-latitude whistler mode signal occurrence prior to geomagnetic storms, J. Atmos. Terr. Phys., 55, 1479-1485, 1993.

·       Clilverd, M A, N R Thomson, and A J Smith, The influence of ionospheric absorption on mid-latitude whistler mode signal occurrence from VLF transmitters, J. Atmos. Terr. Phys., 55, 1469-1477, 1993.

·       Dowden, R L and C D D Adams, Size and location of lightning-induced ionisation enhancements from measurement of VLF phase and amplitude perturbations on multiple antennas, J. Atmos. Terr. Phys., 55, 1335-1359, 1993.

·       Dowden, R L and C D D Adams, VLF holography, Radioscientist, 4, 60-65, 1993

·       Friedel, R H W, A R Hughes, R L Dowden, and C D D Adams, First observations of Trimpi events at Durban (L = 1.69) using an OMSKI receiver, J. Geophys. Res., 98, 1571-1580, 1993.

·       Holzworth, R H, K W Norville, H Hu, R L Dowden, C D D Adams, J Brundell, O Pinto Jr, I Pinto, and W D Gonzalez, Extended Life Balloon borne Observatories, Radioscientist, 4, 33-37, 1993.

·       Sarkar, M N I, J L Bähr, and N R Thomson, A programmable digital delay, Meas. Sci. Technol., 4(12), 1509-1511, 1993.

·       Thomson, N R, Experimental daytime VLF ionospheric parameters, J. Atmos. Terr. Phys., 55, 173-184, 1993.


1992

·       Clilverd, M A, A J Smith, and N R Thomson, The effects of ionospheric horizontal electron density gradients on whistler mode signals, J. Atmos. Terr. Phys., 54, 1061-1074, 1992.

·       Clilverd, M A, N R Thomson, and A J Smith, Observation of two preferred propagation paths for VLF signals received at a non-conjugate location, J. Atmos. Terr. Phys., 54, 1075-1079, 1992.

·       Dowden, R L and C D D Adams, Ionospheric heating by VLF transmitters?, J. Atmos. Terr. Phys., 54, 1051-1059, 1992.

·       Dowden, R L, C D D Adams, and P D Cotton, Use of VLF transmissions in the location and mapping of lightning-induced ionisation enhancements (LIEs), J. Atmos. Terr. Phys., 54, 1355-1373, 1992.


1991

·       Clilverd, M A, A J Smith, and N R Thomson, The annual variation in quiet time plasmaspheric electron density determined from whistler-mode group delays, Planet. Space Sci., 39, 1059-1067, 1991.

·       Dowden, R L, C D D Adams , M T Rietveld,, P Stubbe, and H Kopka, Phase and amplitude perturbations on subionospheric signals produced by a moving patch of artificially heated ionosphere, J Geophys. Res, 96, 239-248, 1991.

·       Dowden, R L and C D D Adams, VLF versus MF heating of the lower ionosphere. J. Geophys. Res., 96, 14179, 1991.  

   
   
  Updated by Robert McCormick [January 2010]