Prof. Araki's Papers
Last Updated : June 6, 2000

1. Araki, T., Propagation of weak hydromagnetic shock waves in the exosphere and geomagnetic variations due to high altitude nuclear explosions, J. Geomag. Geoelectr., 15, 126-132, 1964.

2. Namikawa, T., T. Kitamura, T. Okuzawa and T. Araki, Propagation of weak hydromagnetic discontinuity in the magnetosphere and the sudden commencement of geomagnetic storm, Rept. Ionos. Space Res. Japan, 18, 218-227, 1964.

3. Araki, T., Diurnal variations of the size of the magnetosphere, Special Contr.Geophys. Inst. Kyoto Univ., No. 7, 11-14, 1967.

4. Araki, T., T. Namikawa, Magnetic field oscillations near the Earth's bow shock front, Rept. Ionos. Space Res. Japan, 22, 89-105, 1968.

5. Araki. T., S. Kitayama and S. Kato, Transequatorial reception of VLF radio waves from Australia, Radio Science, 4, 367-369, 1969.

6. Araki, T., Effects of ions on ionospheric reflection coefficients for VLF radio waves, Contr. Geophys. Inst. Kyoto Univ., No. 11, 1-10, 1970.

7. Araki, T., Y. Naito and S. Kato, Detection of whistle mode signals from VLF ransmitter in Australia, Rept. Ionos. Space Res. in Japan, 26, 69-78. 1972.

8. Kikuchi, T. and T. Araki, Distortion of VLF radio wave field by vertical metal poles, Contr. Geophys. Inst. Kyoto Univ., No. 12, 1-5, 1972.

9. Araki, T., Anomalous diurnal changes of transequatorial VLF radio waves, J. Atmos. Terr. Phys., 35, 693-703, 1973.

10. Araki, T., Anomalous phase changes of transequatorial VLF radio waves during geomagnetic storms, J. Geophys. Res., 79, 4811-4816, 1974.

11. Araki, T., Global structure of geomagnetic sudden commencements, Planet .Space Sci., 25, 373-384, 1977.

12. Kikuchi, T., T. Araki, K. Maekawa and H. Maeda, Transmission of polar electric field to the equator, Nature, 273, 650-651, 1978.

13. Kikuchi, T., and T. Araki, Transient response of the uniform ionosphere, and preliminary reverse impulse of geomagnetic sudden commencement, J. Atmos. Terr. Phys., 41, 917-925, 1979.

14. Kikuchi, T., and T. Araki, Horizontal transmission of the polar electric field, J. Atmos. Terr. Phys., 41, 927-936, 1979.

15. Araki,T. and J. H. Allen, Latitudinal reversal of polarization of the geomagnetic sudden commencement, J. Geophys. Res., 87, 5207-5216, 1982.

16. Maeda, H., T. Iyemori, T. Araki and T. Kamei, New evidence of a meridional current system in the equatorial ionosphere, Geophys. Res. Lets., 9, 337-340, 1982.

17. Araki,T., T. Iyemori, S. Tsunomura, T. Kamei and H.Maeda, Detection of an ionospheric current for the preliminary impulse of the geomagnetic sudden commencement, Geophys. Res. Lets., 9, 341-344, 1982.

18. Iyemori, T. and T. Araki, Single vortex current system in the polar region nerated by an interplanetary shock wave, Geophys. Res. Lets., 9, 535-538, 1982

19. Nagano, H. and T. Araki, Long duration Pc5 pulsations observed by geostationary satellites, Geophys. Res. Lets., 9, 908-911, 1983.

20. Araki, T., T. Kamei and T. Iyemori, Polar cap vertical currents associated with northward interplanetary magnetic field, Geophys Res. Lets., 11, 23-26，1984.

21. Tsunomura, S. and T. Araki, Numerical analysis of equatorial enhancement of geomagnetic storm sudden commencement, Planet. Space Sci., 32, 599-604, 1984.

22. Takeda, M. and T. Araki,　Ionospheric currents and fields during the solar eclipse, Planet. Space Sci., 32, 1013-1019, 1984.

23. Takeda, M. and T. Araki, Time variation of instantaneous equivalent Sq current system, J. Atmos. Terr. Phys., 46, 911-915, 1984.

24. Banks, P. M., T. Araki, C. R. Clauer, J. P. St. Maurice, and J. G. Foster, The interplanetary electric field, cleft currents and plasma convection in the polar cap, Planet. Space Sci., 32, 1551-1557, 1984.

25. Araki, T., T.Iyemori and T. Kamei, Sudden commencements observed by MAGSAT above the ionosphere, J. Geomag. Geoelectr., 36, 507-520,1984.

26. Nagano, H. and T. Araki, Polarization of geomagnetic sudden commencements observed by geostationary satellites, J. Geophys. Res., 89, 11018-11022, 1984.

27. Araki, T., J. H. Allen and Y. Araki, Extension of a polar ionospheric current to the nightside equator, Planet. Space Sci., 33, 11-16, 1985.

28. Maeda H., T. Kamei, T. Iyemori and T. Araki, Geomagnetic perturbations in low latitude observed by MAGSAT, J. Geophys. Res., 90, 2481-2486, 1985.

29. Nagano H., T. Araki, A statistical study of Psc 4 and Psc 5 observed by geostationary satellites, Planet. Space Sci., 33, 365-372, 1985.

30. Takeda, M. and T. Araki, Electric conductivity of the ionosphere and nocturnal　currents, J. Atmos. Terr. Phys, 47, 601-609, 1985.

31. Araki, T., T. Iyemori and T. Kamei, Simultaneous observation of geomagnetic sudden commencement above and below the ionosphere, Mem. Natl. Inst. Polar Res., Spec. Issue, No.36, 114-122, 1985.

32. Nagano, H., T. Araki, H. Fukunishi and N. Sato, Characteristics of polarization of geomagnetic sudden commencements at geostationary orbit, Mem. Natl. Inst. Polar Res., Spec. Issue, No.36, 123-135, 1985.

33. Kikuchi, T. and T. Araki, Preliminary positive impulse of geomagnetic sudden commencement observed at dayside middle and low latitudes, J. Geophys. Res., 90, 12195-12200, 1985.

34. Nagano, H. and T. Araki, Seasonal variation of amplitude of geomagnetic sudden commencements near midnight at geostationary orbit, Planet. Space Sci., 34, 205-217, 1986.

35. Nagano, H., T. Araki, T. Iyemori, H. Fukunishi, N. Sato and M. Ayukawa, Characteristics of polarization of geomagnetic sudden commencements observed at Syowa station, Mem. Natl. Inst. Polar Res., Spec. Issue, No.42, 67-78, 1986.

36. Takeda, M., Y. Yamada and T. Araki, Simulation of ionospheric current and geomagnetic field variations of Sq for different solar activity, J. Atmos. Terr. Phys, 48, 277-287, 1986.

37. Nagano, H., T. Araki, T. Iyemori, H. Fukunishi, N. Sato and M. Ayukawa, Geomagnetic sudden commencements observed at the Syowa-Iceland conjugate stations, Mem. Natl. Inst. Polar Res., Spec. Issue, No. 47, 78-91, 1987.

38. Araki, T., Waves in the atmosphere and geomagnetic Sq field, 'Japanese Contribution to Middle Atmosphere Program (MAP)' edited by S. Kato, 83-88, 1987.

39. Araki, T., A model of geomagnetic sudden commencement, 'Quantitative Modeling of Magnetosphere-Ionosphere Coupling Processes', extended abstract for the Symposium edited by Y. Kamide, 47-52, 1987.

40. Araki, T. and H. Nagano, Geomagnetic response to sudden expansions of the magnetosphere, J. Geophys. Res., 93, 3983-3988, 1988.

41. Oguchi, T., T. Yamamoto, K. Hayashi, S. Kokubun, T. Ogawa, N. Iwagami, T. Kitamura, O. Saka, T. Araki, K. Makita, N. Sato, T. Watanabe, R. E. Horita and J. S. Kim, Fast auroral evolution and related magnetic field changes on the ground at the conjugate satellites, J. Goemag. Geoelectr., 40, 505-536, 1988.

42. Yamamoto, T., K. Hayashi, S. Kokubun, T. Oguchi, T. Ogawa, N. Iwagami, T. Kitamura, O. Saka, T. Araki, K. Makita, N. Sato, T. Watanabe, R. E. Horita and J. S. Kim, Auroral activities and long-period geomagnetic pulsations and concurrent auroras in the dawn, J. Geomag. Geoelectr., 40, 553-569, 1988.

43. Yamamoto, T., K. Hayashi, S. Kokubun, T. Oguchi, T. Ogawa, N. Iwagami, K. Kitamura, O. Saka, T. Araki, K. Makita, T. Watanabe, R. E. Horita and J. S. Kim, Auroral activities and long-period geomagnetic pulsations, 2 Ps5 pulsations following auroral breakup in the premidnight hours, J. Geomag. Geoelectr., 40, 570-582, 1988.

44. Hayashi, K., T. Yamamoto, S. Kokubun, T. Oguchi, T. Ogawa, N. Iwagami, T.,Araki, T. Kitamura, O. Saka, K. Makita, N. Sato, T.Watanabe, R. E., Horita, D. J. McEwen, J. S. Kim and A. Egeland, Multi-station observation of IPDP micropulsations- Two dimentional distribution and evolution of the source regions, J. Geomag. Geoelectr., 40, 583-619, 1988.

45. Kitamura, T., O. Saka, M. Shimoizumi, H. Tachihara, T. Oguchi, T. Araki, N. Sato, M. Ishitsuka, O. Veriz and J. B. Nyobe, Global ode of Pi2 waves in the equatorial region - The difference of Pi2 mode between high and equatorial latitudes -, J. Geomag. Geoelectr., 40, 621-634, 1988.

46. Saka, O., T. Kitamura, M. Simoizumi, T. Araki, T. Oguchi, O. Veliz and M. Ishitsuka, The effect of non-uniform ionosphere on the equatorial Pc pulsations, J. Geomag. Geoelectr., 40, 635-643, 1988.

47. Oliver, W. L., S. Fukao, T. Sato, T. Tsuda, S. Kato, I. Kimura, A. Ito, T.Saryou and T. Araki, Ionospheric incoherent scatter measurements with middleand upper atmosphereradar: Observations during the large magnetic storm of February 6-8, 1986, J. Geophys. Res., 93, 14649-14655, 1988.

48. Oliver, W. L., S. Fukao, T. Sato, T. Tsuda, S. Kato, I. Kimura, A. Ito, T.Saryou and T. Araki, Ionospheric incoherent scatter measurements with the MU radar: Observations of F-region electrodynamics, J. Geomag. Geoelectr., 40, 963-985, 1988.

49. Yamauchi, M. and T. Araki, The interplanetary magnetic field By-dependent field-aligned current in the dayside polar cap under quiet conditions, J. Geophys. Res.,94, 2684-2690, 1989.

50. Saryou, T., M. Takeda, T. Araki, T. Sato, T. Tsuda, S. Fukao and S. Kato, A midday bite-out event of the F2-layer observed by the MU radar at Shigaraki, J. Geomag. Geoelectr., 41, 727-734, 1989.

51. Saryou, T., M. Takeda, T. Araki, T. Sato, T. Tsuda, S. Fukao and S. Kato, Ion drift measured by the MU radar and its comparison with geomagnetic field variation, J. Geomag. Geoelectr., 41, 597-611,1989.

52. Araki, T., K. Schlegel and H. Luehr, Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere. J. Geophys. Res., 94, 17185-17199, 1989.

53. Nagano, H., T.Araki, T. Iyemori, N. Sato, and M. Ayukawa, Characteristics of CNA associated with geomagnetic sudden commencements, Proc. NIPR Symp. Upper Atmos. Phys., 2, 15-24, 1989.

54. Iyemori, T. and T. Araki, Solar wind-magnetosphere interaction during the possible encounter of comet Halley's tail in 1910 inferred from midlatitude geomagnetic field disturbances, J. Geomag. Geoelectr., 43, 783-795, 1991.

55. Ohnishi, H. and T. Araki, Two dimensional interaction between a plane hydromagnetic wave and the earth-ionosphere system with curvature, Ann. Geophyscae., 10, 281-287, 1992.

56. Araki, T., H. Shimazu, T. Kamei and H. Hanado, Scandinavian IMS Magnetometer Array Data and Their Use for Studies of Geomagnetic Rapid Variations, Proc. NIPR Symp. Upper Atmos. Phys., 5, 10-20, 1992.

57. Sarmoko S., M. Sugiura, T. Iyemori, T. Araki and T. Kamei, Derivation of polar cap AE indices, Proc. NIPR Symp. Upper Atmos. Phys., 5, 35-45, 1992.

58. Araki, T., Effects of ring current and solar wind dynamic pressure on the magnetic field at Geosynchronous orbit, Geomagnetic Studies at Low Latitudes (Proceedings of the Symposium on Modern Trends in Geomagnetic Studies at Low Latitudes) edited by G.K. Rangarajan and B.R. Arora, 201-213, 1992.

59. Araki, T. K. Funato, T. Iguchi and T. Kamei, Direct detection of solar wind dynamic pressure effect on ground geomagnetic field, Geophys. Res. Letts., 20, 775-778, 1993.

60. Araki, T., A physical model of geomagnetic sudden commencement, Geophysical Monograph 81, 183-200, 1994.

61. Reddy, C. A., S. Ravindran, K. S. Viswanathan, B. V. Krishna Murthy, D. R. K. Rao and T. Araki, Observations of Pc5 micropulasation-related electric field oscillations in the equatorial ionosphere, Ann. Geophysicae, 12, 565-573, 1994.

62. Shimazu, H., T. Araki, T. Kamei and H. Hanado, A symmetric appearance of Pc 5 on dawn and dusk sides associated with solar wind pressure enhancement, J. Geomag. Geoelectr., 47, 177-189, 1995.

63. Iyemori, T. T. Kamei, Y. Tanaka, M. Takeda, T. Hashimoto, T. Araki, T. Okamoto, K. Watanabe, N. Sumitomo and N. Oshiman, Co-seismic geomagnetic variations observed at the 1995 Hyogokenn-Nambu earthquake, J. Geomag. Geoelectr., 48, 1059-1070, 1996.

64. Iyemori, T. M. Takeda, A. Saito, T. Araki, T. Hashimoto, and Y. Tanaka, Solar and IMF effects on mid-latitude ionospheric electric fields and foF2, J. Geomag. Geoelectr., 48, 1219-1232, 1996.

65. Petrinec, S. M., K. Yumoto, H. Luehr, D. Orr, D. Milling, K. Hayashi, S. Kokubun and T. Araki, The CME event of February 21, 1994: Response of the magnetic field at the Earth's surface, J. Geomag. Geoelectr., 48, 11, 1341-1379, 1996.

66. Araki, T., S. Fujitani, M. Emoto, K. Yumoto, K. Shiokawa, T. Ichinose, H. Luehr, D. Orr, D. Milling, H. Singer, G.Rostoker, S. Tsunomura, Y. Yamada and C.F. Liu, Anomalous sudden commencement on March 24, 1991, J. Geophys. Res., 102, A7, 14075- 14086, 1997.

67. Rangarajan, G. K., and T. Araki, Multiple timescales in the fluctuations of the equatorial Dst index through singular spectrum analysis, J. Geomag. Geoelectr., 49, 3-20, 1997.

68. Yamada, Y. M. Takeda and T. Araki, Occurrence characteristics of the preliminary impulse of geomagnetic sudden commencement detected at middle and low latitudes, J. Geomag. Geoelectr., 49, 1001-1012, 1997.

69. Xinlin Li, D. N. Baker, M. Temerin, T. Cayton, G.D.Reeves, T. Araki, H. Singer, D. Larsen, R.P.Lin, S.G.Kanekel, Energetic electron injections into the inner magnetosphere during the Jan. 10-11, 1997 magnetic storm, Geophys. Res. Letts., 25, 2561-2564, 1998.

70. Takeuchi, T. T. Araki, R.P.Lepping, T. Yamamoto, S. Kokubun, T. Nagai and T. Iyemori, A magnetic cloud with unusual structure and corresponding bow shock movement observed on May 13, 1995, Geophys. Res. Lett., 25, 3269-3272, 1998.

71. Takeuchi, T. T. Araki, H. Luehr, O.Rasmussen, J. Watermann, D.K.Milling, I.R.Mann, K.Yumoto, K.Shiokawa and T. Nagai, Geomagnetic negative impulse due to a magnetic cloud observed on May 13, 1995, J. Geophys. Res., 2000 (to be published)