PUBLICACIONES - FISICA ESPACIAL
JGR-Space Physics
Rev. Mex. Fis.
Phys. Stat. Sol.
Env.Molec.Mutagen
Rev. Bras. Geofis.
R. Monreal MacMahon, and C. Llop-Romero (2014). "On the characteristic parameters of magnetic storms during two solar cycles", Journal of Atmospheric and Solar-Terrestrial Physics, 114, 66-72 [doi:10.1016/j.jastp.2014.04.007], 2014
Schuch AP, Yagura T, Makita K, Yamamoto H, Schuch NJ, Agnez-Lima LF, Monreal MacMahon R, Menck CFM (2012) "DNA Damage Profiles Induced by Sunlight at Different Latitudes", Environmental and Molecular Mutagenesis, 58:198-206, [doi: 10.1002/em.21678], 2012
R. Monreal MacMahon, and C. Llop-Romero (2011). "A two-step ring current decay time model during the passive recovery phase of magnetic storms", J. Atmos. Solar-Terr. Phys., 73, 1831-1839, [doi: 10.1016/j.jastp.2011.04.007], 2011
R. Monreal MacMahon, and C. Llop-Romero (2010). "Ring current decay time model: Forecasting the recovery phase of magnetic storms", Geophys. Res. Abs., , Vol. 12, EGU2010-0, 2010 [abstract]
R. Monreal MacMahon, and C. Llop-Romero (2008). "Ring current decay time model during geomagnetic storms: a simple analytical approach" Ann. Geophys., , 26, 2543-2550, 2008 [doi:10.5194/angeo-26-2543-2008] [full-readcube]
H. Nozawa, H. Yamamoto, K. Makita, , NJ Schuch, D. Pinheiro, S. Carbone, R. Monreal MacMahon, A. Foppiano. "Ground-based observations of solar UV radiation in Japan, Brasil and Chile" Rev. Bras. Geofisica, , Vol. 25, Suppl.2, pp. 17-25, 2007 [fulltext ]
D. Koga, A. C.-L. Chian, R. A. Miranda, and E. L. Rempel (2007), "Intermittent nature of solar wind turbulence near the Earth's bow shock: Phase coherence and non-Gaussianity" Phys. Rev. E 75, 046401, (doi:10.1103) 2007
R. Monreal MacMahon and C. Llop-Romero (2006), "Ring Current Decay Time Model during Magnetic Storms" EOS Trans. AGU, 87, (52), Fall Meet. Suppl., Abstract SM11B-0306, 2006 (ISSN: 0096-3941)
R. Miranda et al., "Intermittent chaos in nonlinear wave-wave interactions in space plasmas", J. Atmospheric Solar-Terr. Phys., 67, 1852-1858. ©Elsevier 2005
R. Monreal MacMahon, C. Llop-Romero, J. Aguila, "A modified equation for the storm-time ring current dynamics" Geophys Res Abs, Vol.7, 02370, 2005. SRef-ID:1607-7962/gra/EGU05-A-02370 ©European Geosciences Union 2005.
K. Makita, R. Monreal, "Cosmic noise absorption phenomena at Punta arenas, Chile, associated with the huge geomagnetic storm called 'Halloween Storm'" [in japanese] . Bulletin of Science and Engineering, Takushoku Univ. Vol11(2), 37-47, 2010-11
M. Nishino, Y. Kato, M. Sato, K. Makita, M. Hoshino, T. Koide, K. Toya, T. Okawa, NJ Schuch, R. Monreal, A. Foppiano, "Multiple Imaging Riometer Observations at Low and Mid Latitudes in the Northern and the Southern Hemispheres : Cosmic noise absorption phenomena during the geomagnetic storm on December 2006" Bulletin of Science and Engineering, Takushoku Univ., Vol. 10(1), 53-60, 2007 [full-japanese] (ISSN:0919-8253)
H. Nozawa, H. Yamamoto, K. Makita, , NJ Schuch, A. Foppiano, R. Monreal MacMahon "Ground-based observations of solar UV radiation at Brasil and Chile" Bulletin of Science and Engineering, Takushoku Univ., Vol. 9, No.3, pp. 24-31, 2005 [firstpage](ISSN:0919-8253)
M. Nishino, K. Makita, M. Sato, Y. Kato, M. Hoshino, NJ Schuch, A. Foppiano, R. Monreal, "Network Observations of Imaging Riometers in South America" Bulletin of Science and Engineering, Takushoku Univ., Vol. 9, No.2, pp. 31-36, 2004[firstpage] (ISSN:0919-8253)
Makita, K, M. Hoshino, M. Nishino, Y. Kato, M. Sato, M. Ejiri, , H. Yamagishi, , M. Ayukawa, M. Furukawa, R. Monreal, A. Foppiano, "Utra-Violet Rays and Imaging Riometer Observations at Punta Arenas, Chile" Bulletin of Science and Engineering, Takushoku Univ., Vol. 9, No.1, pp. 13-18, 2004[firstpage] (ISSN:0919-8253)
R. Monreal MacMahon, C. Llop-Romero, "Comparison of two concurrent models on the ring current decay" Eos Trans. AGU,85(28), West. Pac. Geophys. Meet. Suppl., Abstract "SM31A-31, 2004 (ISSN: 0096-3941)
R. Monreal MacMahon, C. Llop-Romero, "Solar cycle effects on different levels of magnetic storms" Eos. Trans. AGU, 84(46), Fall Meet, Supl., SM52A-0571, 2003.
R. Monreal MacMahon, C. Llop-Romero, R. Miranda. "On the ring current dynamics related to magnetic storms and substorms" Geophys. Res. Abs. 5, 00005, 2003.
R. Monreal Mc, and C. Llop. "Particle Precipitation Influence in the Conductivity of the Auroral Ionosphere during Magnetic Storms". Rev. Mex .Fis.S 48 (3), 151,, 2002. PDFfull
R. Monreal McMahon, V. Valderrama, R. Aguilar and P.J.A. Burt.. "An Operational method for forecasting total column ozone for Punta Arenas, Chile", Meteorol. Appl. 9, 327, 2002 [doi:10.1017/S1350482702003067]
Sugiyama, T., R.M. Mac-Mahon, N. Ueno, P. Ammosov, G.A. Gavrilyeva, S. Nikolashkin,, A.M. Zadorozhny, A. Semmenov, N. Persev, and V. Sukhodoev. “CCD imaging of NLCs in South America and Russia since 1998?E in Mesospheric Clouds 2002, M. Gadsden and N.D. James (editors), Memoirs of the British Astron. Assoc., Vol. 45, Aurora Section, 20, 186. London , U. K., 2002 (ISBN 0-902749-14-5)
Monreal Mac-Mahon, R.; R. Miranda, and C. Llop. "Relationships Between Parameters Characterizing the Solar Wind-Magnetosphere Coupling During Different Levels of Geomagnetic Storms". Eos. Trans. AGU, 83(19), 2002. (ISSN: 0096-3941)
R. Monreal MacMahon, C. Llop, and R. Miranda. "Ring Current Decay during Northward Turnings of Interplanetary magnetic Field". Geophys. Res. Abs., Vol. 4, 00577, 2002.
Monreal Mac-Mahon, R., C. Llop, and R. Miranda. "On the global relationship between characteristic parameters associated with geomagnetic storms" Eos. Trans. AGU, 82(47), 0829, 2001
Monreal Mac-Mahon, R. "Ring current dynamics and the associated decay time of particles". Geophys. Res. Abs., Vol. 3, 5968, 2001.
Monreal Mac-Mahon, R.; C. Llop "The ring current decay parameter as a continuous function of the absolute value of the Dst index". Eos. Trans. AGU, 81 (48) 1044, 2000.
T. Lachlan-Cope, J. Turner, C.B. Sear, P.J.A. Burt, A. Jones, T. Bowden and R. Monreal. "A pilot study for predicting ozone amounts for the general public in southern Chile", Meteorol. Appl. 7, 37, 2000. (abstract) PDFfull
R. Monreal Mc, C. Llop. "Auroral behavior during magnetic superstorms", Rev. Geofisica 50, 31, 1999.
R. Monreal Mc, R. Aguilar and V. Valderrama. "Simple operational forecasting model of total ozone for Punta Arenas ", Eos. Trans. AGU, 80(48), 1999.
Monreal Mac-Mahon, R.; Gonzalez, W.D. "Energetics During Geomagnetic Superstorms". In: Causes of Magnetic Storms, (Ed.) Y. Kamide, A.G.U., Washington D.C., 1998.
Monreal MacMahon, R; Llop, C. "Evolution of Auroral Boundaries during Superstorms", Eos. Trans. AGU, 78(48), 1997.
Monreal MacMahon, R.; Gonzalez, W.D. "Energetics During the Main Phase of Geomagnetic Superstorms". J. Geophys. Res., 102(A7), 14199, 1997 (doi:10.1029/97JA01151) [fulltext ]
Sugiyama T, Fukao S, Tsuda K, Witt G, Caidenas R A, Mac-Mahon R M, "North/South Hemispheric Noctilucent Cloud Observations in 97/98 with CCD imagers". Taikiken Shinpojiumu, Journal Code: L2212A, ISSN:0916-1295, Vol.12th(1997): No.;pp. 54-57, Japan, 1998 .
Monreal Mc, R.; Lachlan-Cope, T.; Navarro, P. "El sistema de recepción satelital en la UMAG y el ozono total usando datos TOVS-NOAA". In: Seminario Protección de los Ecosistemas Americano y Antártico, pp. 25-30, INACH, 1995.
V. Valderrama, V. Kircchoff, F. Zamorano, C. Casiccia, e R. Monreal. Ozono sobre Punta Arenas (53 0 S, 71 0 W) y alteraciones provocadas por la presencia del Agujero Antártico". En Ciencias Espaciais e da Atmosfera na Antarctica, pp. 73-86, Eds. R. Medrano-B., y E. B. Pereira, TRANSTEC Ed., Sao Paulo, Brasil., 1995.
Ricardo Monreal MacMahon. "Correntes Magnetosfericas: Origem e Distribuicao", Monografia INPE-5414-PUD/052. Sao José dos Campos-SP, Brasil, 1992.
M. Lagos, R. Monreal Mc and J. Rogan. "Intrinsic Broadening of F-electron Energy Levels due to Phonon Mediated Hybridization of Electronic States", phys. status solidi B, 168(1), 341, 1991 [doi:10.1002/pssb.2221680133]
REPORTS, TESIS, MEMORIA
T. Sugiyama, B.Z.O. Gjede, R. M. Mac-Mahon. "Report on NLC: Observacion de Nube Noctilucente en Punta Arenas (53.1S, 70.9W), Chile, Nov. 26 1999 - Jan. 31 2000" Kyoto Univ., Japan, 2000.
T. Sugiyama, B.Z.O. Gjede, R. M. Mac-Mahon. "Report on NLC: Observation de Nube Noctilucente en Punta Arenas (53.1S, 70.9W), Chile, Dec. 8 1998 - Jan. 31 1999" Kyoto Univ., Japan, 1999.
Ricardo Monreal MacMahon. "Energizacão do sistema Vento solar - Magnetosfera e sua dissipacão ionosferica auroral durante tempestades geomagneticas muito intensas" Tesis de Doctorado. INPE, Sao Jose dos Campos-SP, Brasil. Junio 1994.
Ricardo Monreal MacMahon. "Absorcion optica por Centro-F" Tesis de Magister, P. Universidad Catolica de Chile, Santiago - Chile, 1988.
Cecilia Llop Romero, "Instrumentos de medición de Temperaturas", Memoria de grado: Licenciatura en Educación/ Física, Universidad de Santiago, Chile, 1983.
Ricardo Monreal MacMahon, "Análisis 3-D del problema de Rayleigh-Benard no lineal con bordes débilmente conductores" Memoria de grado: Licenciatura en Ciencias Exactas/ Física, P. Universidad Católica de Chile, Santiago - Chile, 1982.
CONGRESOS, ENCUENTROS
· Schuch AP, Yagura T, Schuch NJ, Makita K, Yamamoto H, Agnez-Lima LF, Monreal R, Menck CFM "DNA Damage Profiles Induced by Sunlight at Different Latitudes", 42nd Annual EMS Meeting (Enviromental Mutagen Society), Montreal, Quebec, Canada, Oct 15-19, 2011 © EMS 2011
· Kazuo Makita, Mitsuo Hoshino, Masanori Nishino, Yasuo Kato, Yoshimasa Tanaka, Takashi Toya, N.J.Schuch , A. Foppiano, E. Ovalle, R. Monreal and J. C. Gianibelli "Cosmic Noise Absorption Observed by Imaging Riometer in South America and Japan During Quiet Period", 12th International Congress of the Brazilian Geophysical Society , Session: Space Geophysics, Publication date: 15 August 2011 Info: Extended abstract, PDF (476.29 KB) Language: English © SBGf 2011
· Nelson Jorge Schuch, Kazuo Makita, Barclay R Clemesha, Jean Pierre Raulin, Alberto J Foppiano, Ricardo Monreal MacMahon, Julio Cesar Gianibelli, Paulo Roberto Fagundes, Mangalathayil Ali Abdu, Paulo Prado Batista, Jose H A Sobral, Muralikrishna Polinaya, Inez Staciarini Batista, Hisao Takahashi, Alexandre A Pimenta, Emília Correia, Clezio Marcos De Nardin, Fabio Vargas, Nivaor Rodolfo Rigozo, Marcelo Barcellos da Rosa, Cristiano Sarzi Machado, Lilian Piecha Moor, Juliano Moro, Vânia Fátima Andrioli, Cassio Espindola Antunes, Pabulo Henrique Rampelotto, Tardelli Ronan Coelho Stekel, Claudio Machado Paulo, Thalis José Girardi, Carlos Pinto da Silva Neto "Aeronomy: An International Cooperation for Science Development in South America", 2010 The Meeting of the Americas, 8–13 August, Foz do Iguaçu - PR, Brazil © AGU 2010
· Ricardo Monreal MacMahon and Cecilia Llop-Romero, "Ring current decay time model: Forecasting the recovery phase of magnetic storms", 2010 European Geosciences Union General Assembly, 2-7 May, Vienna, Austria, © EGU 2010
· Kazuo Makita, Hoshino Mituo, Kato Yasuo, Nishino Masanori, Tanaka Yoshimasa, Ookawa Takashi, Ricardo Monreal, Albert Foppiano, Elias Ovalle, Nelson Jorge Schuch "Imaging riometer observation in South Atlantic Anomaly" Session : P-EM027 Energetic particle dynamics in Earth's inner magnetosphere, Japan Geoscience Union Meeting 2010 May 24. Nakase 2-1, Mihama-ku, Chiba City, 261-0023 Japan, © JpGU 2010
· NJ Schuch, BR Clemesha, K Makita, AJ Foppiano, R Monreal MacMahon, JC Gianibelli, MA Abdu, JHA Sobral, E Correia, CM Denardin, CE Antunes, J Moro, VF Andrioli, CP da Silva Neto, CP Machado, L Moor GI Lorenset "Aeronomy Science Projects at South of Brazil", Scientific Assembly of the International Association of Geomagnetism and Aeronomy, Sopron, Hungary, Aug. 23-30, © IAGA 2009
· K. Makita, M. Hoshino, Y. Tanaka, Y. Kato, M. Nishino, T. Ookawa, R. Monreal, A. Foppiano, J. Gianibelli, N.J. Schuch "Riometer Observation In Geomagnetic Hole In South Atlantic Anomaly Region", 11th International Congress of the Brazilian Geophysical Society , Session: Space Geophysics, Publication date: 24 August 2009 Info: Extended abstract, PDF (1.84 MB) Language: English © SBGf 2009
· J. Moro, NJ. Schuch,P. Muralikrishna, M.A. Abdu, C.M. Denardini, K. Makita, L. Moor, T. Jaskulski, CA. Daroit, ECD. Favera, JP. Raulin, E. Correia, JHA. Sobral, AJ. Foppiano Bachman, R. Monreal MacMahon, J. C. Gianibelli. “Study of the Ionospheric Absorption Using the SARINET Network", 59th International Astronautical Congress,Glasgow, Scottland Sept 29-Oct 03, 2008
· J. Moro, NJ. Schuch,P. Muralikrishna, C.M. Denardini,J. Sobral, M.A. Abdu, L. Moor, T. Jaskulski, CA. Daroit, ECD. Favera, AJ. Foppiano Bachman, R. Monreal MacMahon, J. C. Gianibelli, K. Makita. “Study of the South America Lower Ionosphere Using the SARINET Network", 37th COSPAR Scientific Assembly 2008,Montreal, Canada , 2008
· R. Monreal MacMahon and C. Llop-Romero (2006), “Ring Current Decay Time Model during Magnetic Storms" 2006 Fall Meeting of the American Geophysical Union,San Francisco - CA, USA © AGU 2006
· H. Nozawa, H. Yamamoto, K. Makita, N.J. Schuch, D.K. Pinheiro, S. Carbone, A.J. Foppiano, R.M. Mac-Mahon, “Ground based observations of solar UV radiation at Tokyo, Brazil and Chile" Ninth International Congress of the Brazilian Geophysical Society, Salvador, Brazil [paper]© SBGf 2005
· K. Makita, M. Nishino, T. Torii, R. Monreal, A.J. Foppiano, N. J. Schuch, “Upper atmosphere phenomena in Brazilian geomagnetic anomaly region and its surrounding area", Ninth International Congress of the Brazilian Geophysical Society, Salvador, 11-14 Sept. Brazil [paper] © SBGf, 2005
· R. Monreal, C. Llop, J. Aguila, “Observación de ondas ULF (Pc4-Pc5) durante tempestades magnéticas?E Congreso Internacional del Cuaternario, Centro de Estudios del Cuaternario, P. Natales, Chile, Abril 2005
· R. Monreal MacMahon, C. Llop-Romero, “Comparison of two concurrent models on the ring current decay", Western Pacific Geophysics Meeting , Honolulu, Hawaii - EEUU, Ago. 2004.
· R. Monreal MacMahon, C. Llop-Romero, J. Aguila, “On the ring current dynamics during the recovery phase of magnetic storms" VI Conferencia Latino Americana de Geofisica Espacial, Atibaia - Brasil, Mar 2004
· R A Guarnieri, L F Padilha, D L Rossatto, S. Carbone, R L Manfro, K Makita, R Monreal Mac-Mahon, D K Pinheiro, A M P Schuch, L S Boeira, N J Schuch, “Análise de medidas de Radiação UV-B obtidas em São Martinho da Serra e Punta Arenas no período 2001-2002 e observação de efeito do Buraco de Ozônio Antártico", 8th International Congress of the Brazilian Geophysical Society, Session: Space Geophysics and Solid Earth, Publication date: 14 September 2003, Brazil [EarthDoc ] © SBGf, 2003
· R. Monreal MacMahon, C. Llop-Romero, R. Miranda. “Ring current dynamics during magnetic storms and substorms", AGU-EGS-EUG Joint Assembly, European Geophysical Society, Nice-France 2003.
· A. Boudouridis, E. Zesta, D. Berube., M. Moldwin, R. Monreal Mac-Mahon, M. Stepanova. “Conjugate studies of ULF waves during magnetically active periods: First results from SAMBA" IUGG 2003 General Assembly , Sapporo, Japan, July 2003.
· Monreal Mac-Mahon, R.; R. Miranda, and C. Llop. "Relationships Between Parameters Characterizing the Solar Wind-Magnetosphere Coupling During Different Levels of Geomagnetic Storms". AGU 2002 Spring Meeting, Washington -DC, USA, May 2002. Spring Meet. Suppl., Abstract SM42B-01
· R. Monreal MacMahon, C. Llop, and R. Miranda. "Ring Current Decay during Northward Turnings of Interplanetary magnetic Field". XXVII General Assembly of the European Geophysical Society, Nice, France, April 2002.
· Monreal Mac-Mahon, R.; R. Miranda, and C. Llop. "On the global relationships between characteristic parameters associated with geomagnetic storms". AGU 2001 Fall Meeting, San Francisco-CA, USA, Dec. 2001.
· R. Monreal MacMahon. "Relación generalizada entre parámetros que caracterizan diferentes niveles de tempestades magnéticas", VI Conferencia Latino Americana de Geof?Eica Espacial, Tomé Chile, Oct. 2001.
· Cecilia Llop y Ricardo Monreal Mc. “Relación entre índices geomagnéticos de alta latitud y la precipitación de partículas en la región auroral: Resultados preliminares" VI COLAGE, Tome, Chile. 2001.
· T. Sugiyama, R.M.Mac-Mahon, R. Miranda, N. Ueno, G.A. Gavrilyeva, P.P. Ammosov, S.V. Nikolashikin, A.M. Zadorozhny, N.N. Pertsev, A. Semenov, V. Sukhodoev. "Noctilucent Cloud recording with automatic CCD Imagers in Chile, Argentina, and Russia since 1998", IAGA-IASPEI, Hanoi-Vietnam, 2001.
· Monreal Mac-Mahon, R. "Ring current dynamics". General Assembly of the European Geophysical Society, Nice, France, Mar. 2001. Newsletter EGS, 78, 190, ST033, 2001.
· Monreal Mac-Mahon, R.; C. Llop "Ring current injection and ionospheric dissipation". Chapman Conference: Storm-Substorm Relationship, AGU, Lonavala-Mumbai, India, Mar. 2001.
· Monreal Mac-Mahon, R.; C. Llop "The ring current decay parameter as a continuous function of the absolute value of the Dst index". AGU Fall Meeting, San Francisco-CA, USA, Dec. 2000. Fall Meet. Suppl., Abstract SM12A-04.
· R. Monreal Mc, y C. Llop "Influencia de la precipitación de partículas en la conductividad de la ionosfera auroral durante tempestades magnéticas". Actas Simposio Chileno de Fíica, U. de Santiago, Nov. 2000.
· R. Monreal Mc, R. Aguilar and V. Valderrama. "A Simple operational forecasting model of total ozone". AGU Fall Meeting, San Francisco-CA, USA, Dec. 1999. Fall Meet. Suppl., Abstract A52A-05.
· T. Sugiyama, S. Fukao, P. Hoffmann, J. Brener, W. Singer, G. Witt, R. M. Mac-Mahon. "On quasi-weekly occurrences of height noctilucent clouds: Observation and Theory", International Workshop of the ICMA Working Group on Mesopause Boundary Layers, Germany, Sep. 1998.
· R. Monreal Mc, C. Llop. "Comportamiento Auroral durante Super-tempestades", V Conferencia LatinoAmericana de Geofísica Espacial, San José Costa Rica, Nov. 1998.
· V. Valderrama, R. Monreal Mc, C. Casiccia, F. Zamorano. "Climatologú} de ozono y su posibilidad de predecirlo". Actas Congreso de Ciencias de la Tierra, Santiago, Ago. 1998.
· Sugiyama, T.; S. Fukao, G. Witt, R. A. Cardenas, R. M. MacMahon. "North/South hemispheric noctilucent clouds observations using a CCD imager", Spring Meeting of the Japanese Meteorological Society, Tokyo, Japan, May 25-29, 1998.
· Monreal Mc, R.; Aguilar, R., Valderrama, V. "Modelo predictivo de ozono total para Punta Arenas". Actas III Reunión Internacional Andina de Física, 28-37, La Serena, Chile, Oct. 1997.
· Monreal MacMahon, R; Llop, C. "Evolution of Auroral Boundaries during Superstorms". AGU Fall Meeting, San Francisco-CA, USA, Dec. 1997. Fall Meet. Suppl., Abstract SM21A-08.
· Aguilar, R.; Monreal Mc, R. "Obtención de flujos de partículas desde los instrumentos SEM utilizando la Estación de Recepción de la UMAG". III Reunión Internacional Andina de Física, La Serena, Chile, Oct. 1997.
· Monreal MacMahon, R. "Auroral Oval Dynamics and Dissipation During Superstorms". Western Pacific Geophysics Meeting. Brisbane, Australia. July 23 - 27, 1996.
· Monreal MacMahon, R.; Gonzalez, W. D. "Energy Dissipation in Superstorms". Chapman Conference on Magnetic Storms. Jet Propulsion Laboratory, Pasadena-CA-USA, Feb. 1996.
· Monreal Mc, R.; Lachlan-Cope, T.; Burt, P.; Valderrama, V.; Aguilar, R. "El contenido total de ozono en la atmósfera a través del sistema de recepción de satélites NOAA en la UMAG". Actas VI Simposio Nacional de Física Experimental y Aplicada, pp. 68-73, Temuco, Chile, 1996.
· Valderrama, V.; Monreal Mc, R.; Casiccia, C.; Jadrievic, P.; Muñoz, A. "Circulación estratosférica y penetración del AOA en el extremo Sur de América. II Reunión Internacional Andina de Física, Iquique, Chile. Oct. 9-11, 1995.
· R. Monreal Mc, W.D. Gonzalez, H.W. Kroehl y B.T. Tsurutani. "Disipación en la Ionosfera de altas latitudes durante supertempestades magnéticas". Conferencia Latino Americana sobre Ciencias Espaciais e Atmosféricas na Antártica. Resumen de trabajos, pág. 42. Serra Negra - SP, Brasil, Nov. 20-25, 1994.
· W.D. Gonzalez , R. M. MacMahon, and B. T. Tsurutani. "Energetics of Super-storms". International Conference on Magnetic Storms. Proceedings, Pág. 29-31. Solar-Terrestrial Environment Laboratory, Nagoya University, Rikabetsu-Hokkaido, Japan. Oct 6-8, 1994.
· R. Monreal MacMahon and W. D. Gonzalez. "Comparative Study on Westward travelling Surge Models". Solar-Terrestrial Energy Program Symposium/ 5th COSPAR Colloquium, Johns Hopkins University, Applied Physics Laboratory. Scientific Committee in Solar-Terrestrial Physics, Pág. 70, Aug. 24-28, 1992.