Scientific papers related with Iceland – Syowa conjugate observations
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Nagata, T., and S. Kokubun, Polar magnetic storms, with special references to relation between
geomagnetic disturbances in the northern and southern auroral zones, Rep. Ionos. Space Res. Jpn., 14,273-290, 1960.
Nagata, T., S. Kokubun, and T. Iijima, Geomagnetically conjugate relationship of giant pulsations at Syowa
Base, Antarctica, and Reykjavik, Iceland, J. Geophys. Res., 68, 4621-4625,
https://doi.org/10.1029/JZ068i015p04621, 1963.
Nagata, T., S. Kokubun, and T. Iijima, Geomagnetically conjugate relationship of polar geomagnetic
disturbances-Particularly the distinct geomagnetic conjugacy between Syowa Station in Antarctica andRekjavik in Iceland, JARE Sci. Rep., Ser. A, 3, 64p, http://id.nii.ac.jp/1291/00000498/, 1966.
Nagata, T., Geomagnetic conjugcy between the Antarctica and the Arctic, JARE Sci. Rep., Spec. Issue, 1,65-80, http://id.nii.ac.jp/1291/00000079/, 1967.
Oguti, T., Conjugate point problem, Space. Sci. Rev., 9, 745-804,
https://link.springer.com/article/10.1007/BF00226262, 1969.
Nagata, T., Polar magnetic disturbance and conjugate point phenomena, Annals of the IQSY, Vol. 5.
Solar-Terrestrial Physics, ed. by A. C. Stickland. Cambridge, MIT Press, 417-437, 1978.
Kuwashima, M., Wave characteristics of magnetic Pi 2 pulsations in the auroral region-Spectral andpolarization studies, Mem. Natl Inst. Polar Res., Series A15, Aeronomy, 79pp,
http://id.nii.ac.jp/1291/00000465/, 1978.
Sato, N., Y. Katsuta, M. Ayukawa, H. Fukunishi, T. Hirasawa, Conjugate point Observation Syowa-Iceland,
Antarct, Res., 64, 146-158, https://doi.org/10.15094/00008039, 1979, (Japanese).
Sato, N., Future problems of geomagnetic conjugate observations. Antarct, Res., 65, 92-101,
http://doi.org/10.15094/00008060, 1979, (Japanese).
Sato, N., and S. Kokubun, Interction between ELF-VLF emissions and magnetic pulsations : Qusai-periodic
ELF-VLF emissions associated with Pc 3-4 magnetic pulsations and their geomagnetic conjugacy, J.
Geophys. Res., 85, 101-113, https://doi.org/10.1029/JA085iA01p00101, 1980.
Sato, N., M. Ayukawa, and H. Fukunishi, Conjugacy of ELF-VLF emissions near L=6, J. Atmos. Terr. Phys.,42, 911-928, https://doi.org/10.1016/0021-9169(80)90108-7, 1980.
Sato, N., Quas-periodic (QP) ELF-VLF emissions observed in high latitudes, Mem, Natl. Inst. Polar Res.,
Series A17, Aeronomy, 120p, http://id.nii.ac.jp/1291/00000477/, 1980.
Sato, N., M. Ayukawa, and H. Fukunishi, Conjugacy of ELF-VLF emissions at Syowa Station and Husafell
Iceland, Antarct. Rec., 68, 181-202, http://doi.org/10.15094/00008128, 1980, (Japanese).
Nagata, T., T. Hirasawa, H. Fukunishi, M. Ayukawa, N. Sato, and R. Fujii, ULF-VLF waves observed at the
Syowa Station-Iceland conjugate pair, Mem. Natl. Inst. Polar Res., Spec. Issue. 16, 25-38,
http://id.nii.ac.jp/1291/00001071/, 1980.
Iwabuchi, M., H. Fukunishi, and N. Sato, Spectral and polarization characteristics of Pc 3-5 magnetic
pulsations observed at the Syowa Station-Iceland conjugate pair, Antarct. Rec., 68,294-310,
http://doi.org/10.15094/00008138, 1980.
Sato, N., and S. Kokubun, Interaction between ELF-VLF emissions and magnetic pulsations: Regularperiod ELF-VLF pulsations and their geomagnetic conjugacy, J. Geophys. Res., 86, 9-18,
https://doi.org/10.1029/JA085iA01p00101, 1981.
Kuwashima, M., Wave characteristic of magnetic Pi 2 pulsations in the auroral region: Conjugate relations,Mem. Natl Inst. Polar Res., Spec. Issue, 18, 161-178, http://id.nii.ac.jp/1291/00001128/, 1981.
Makita, K., T. Hirasawa, and R. Fujii, Visual auroras observed at the Syowa Station-Iceland conjugate pair,Mem. Natl Inst. Polar Res., Spec. Issue, 18, 161-178, http://id.nii.ac.jp/1291/00001132/, 1981.
Sato, N., and H. Fukunishi, Interaction between ELF-VLF emissions and magnetic pulasations:Classification of quasi-periodic ELF-VLF emissions based on frequency-time spectra, J. Geophys. Res., 86,
19-29, https://doi.org/10.1029/JA086iA01p00019, 1981.
Ishizu, N., O. Saka, T. Kitamura, H. Fukunishi, N. Sato, and R. Fujii, Polarization study of Pc 1 and Pc 2
band pulsations at conjugate stations, Mem. Natl Inst. Polar Res., Spec. Issue, 18, 118-126, :http://id.nii.ac.jp/1291/00001125/, 1981.
Sato, M., K. Maezawa, N. Sato, T. Hirasawa, and H. Fukunishi, Conjugacy of ELF-VLF emissions at Syowa
Station and Iceland, Bill of Yamagata Univ. Nat. Sci., 10, 273-282,
https://cir.nii.ac.jp/crid/1520290885161038848, 1982. (Japanese).
Tonegawa, Y., H. Fukunishi, T. Hirasawa, R. L. Mcpherron, T. Sakurai, and Y. Kato, Dynamic spectral studyof Pc 3 to Pc 5 pulsations observed near L=6, Mem. Natl Inst. Polar Res., Spec. Issue, 26, 23-32,
http://id.nii.ac.jp/1291/00001408/, 1983.
Sato, M., K. Maezawa, H. Fukunishi, and N. Sato, Conjugacy of ELF emission spectra and powers, Mem.
Natl Inst. Polar Res., Spec. Issue, 26, 91-102, http://id.nii.ac.jp/1291/00001412/, 1983.
Fukunishi, H., and H. Miyaoka, Summary report international balloon campaign in Sweden and Norway,
1980-1982. Natl. Inst. Polar Res. 134p, 1984.
Sato, N., H. Fukunishi, S. Kokubun, and Th. Saemundsson, Report of the 1983 Conjugate Campaign in

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Iceland, Antarct. Res., 81, 102-119, https://doi.org/10.15094/00008398, 1984, (Japanese).
Tonegawa, Y., and H. Fukunishi, Harmonic structure of Pc 3-5 magnetic pulsations observed at the
Syowa-Husafell conjugate pair, J. Geophys. Res., 89, 6737-, https://doi.org/10.1029/JA089iA08p06737, 1984.
Tonegawa, Y., H. Fukunishi, T. Hirasawa, R. L. Mcpgerron, T. Sakurai, and Y. Kato, Spectral characteristics
of Pc 3 and Pc 4/5 magnetic pulsation bands observed near L=6, J. Geophys. Res., 89, 9720-,
https://doi.org/10.1029/JA089iA11p09720, 1984.
Yamagishi, H., H. Fukunishi, T. Kojima, T. Yoshino, and R. Gendrin, Conjugate observation of periodic VLF
emissions near L=6, Mem. Natl Inst. Polar Res., Spec. Issue, 31, 96-114, http://id.nii.ac.jp/1291/00001595/,
1984.
Sato, N., H. Fukunishi, and Th. Saemundsson, Operation plan for the Iceland-Syowa conjugate campaign in
1983-1985, Mem. Natl Inst. Polar Res., Spec. Issue, 31, 169-179, http://id.nii.ac.jp/1291/00001601/, 1984.
Sato, N., and H. Fukunishi, Conjugacy of ELF-VLF emissions near L=6, Proc. Conf. Achievement of the
IMS, 26-28 June 1984, Graz, Austria, ESA SP-217, 563-567, 1984.
Yumoto, K., and N. Sato, IMF's control of quasi-periodic ELF-VLF emission. Mem. Natl Inst. Polar Res.,
Spec. Issue, 36, 27-34, http://id.nii.ac.jp/1291/00001743/, 1985.
Sato, N., R. Fujii, S. Kokubun, T. Araki, and Th. Saemundsson, Report of the 1984 conjugate campaign inIceland, Antarct. Rec., 87, 78-95, http://doi.org/10.15094/00008488, 1985, (Japanese).
Araki, T., N. Sato, R. Fujii, T. Kikuchi, and S. Kokubun, A case study of VLF phase and amplitude variation
at 12.1 kHz (Aldra) in Iceland, Mem. Natl Inst. Polar Res., Spec. Issue, 42, 45-51,
http://id.nii.ac.jp/1291/00001990/, 1986.
Sato, N., R. Fujii, T. Ono, H. Fukunishi, T. Hirasawa, T. Araki, S. Kokubun, K. Makita, and Th.
Saemundsson, Conjugacy of proton and electron auroras observed near L=6.1, Geophys. Res. Lett. 13,
1368-1371, https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL013i013p01368, 1986.
Fujii, R., N. Sato, T. Ono, H. Fukunishi, T. Hirasawa, S. Kokubun, T. Araki, and Th. Saemundsson,
Conjugacies of pulsating auroras by all-sky TV observations, Geophys. Res. Lett. 14, 115-118,https://doi.org/10.1029/GL014i002p00115, 1987.
Sato, N., S. Kokubun, and Th. Saemundsson, Geomagnetic conjugacy of 30 kHz band auroral hiss emissions
observed at L=6.1, J. Geophys. Res., 92, 6159-6162, https://doi.org/10.1029/JA092iA06p06159, 1987.
Suzuki, H., and N. Sato, Seasonal and diurnal variations of ELF emission occurrences at 750 Hz band
observed at geomagnetically conjugate stations, J. Geophys. Res., 92, 6153-6158,
https://doi.org/10.1029/JA092iA06p06153, 1987.
Sato, N., Y. Shirokura, and T. Hirasawa, Fingerprint structure Pc 1 geomagnetic pulsations, Geophys. Res.
Lett., 14, 664-667, https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/GL014i006p00664, 1987.
Sakurai, H., Y. Tonegawa, R. Fujii, and N. Sato, Computer compilation process of the data acquired by thecomputer system at Syowa Station, Antarct. Rec., 31, 77-92, http://doi.org/10.15094/00008538, 1987
(Japanese).
Iversen, I. B., H. Miyaoka, N. Sato, S. Ullaland, and R. Fujii, Preliminary results from the auroral zone
ionosphere observations during the AZCO balloon campaign in 1985, Mem. Natl. Inst. Polar Res., Spec.
Issue, 47, 36-43, http://id.nii.ac.jp/1291/00002149/, 1987.
Hirasima, Y., H. Murakami, A. Nakamoto, K. Okudaira, H. Suzuki, T. Yamagami, S. Ohta, M. Namiki, J.
Nishimura, H. Miyaoka, N. Sato, R. Fujii, and M. Kodama, A balloon observation of auroral X-ray images in
the northern auroral zone, Mem. Natl Inst. Polar Res., Spec. Issue, 47, 44-55,
http://id.nii.ac.jp/1291/00002150/, 1987.
Nagano, H., T. Araki, T. Iyemori, H. Fukunishi, N. Sato, and M. Ayukawa, Geomagnetic suddencommencements observed at the Syowa-Iceland conjugate stations, Mem. Natl Inst. Polar Res., Spec. Issue,47, 78-91, http://id.nii.ac.jp/1291/00002154/, 1987.
Kato, Y., and Y. Tonegawa, Pi 1 pulsations associated with substorms and their conjugate behavior, Mem.
Natl Inst. Polar Res., Spec. Issue, 47, 92-96, 1987.
Kimura, I., H. Higuchi, K. Hashimoto, N. Sato, and T. Matsudo, Relationship between power line radiation
and VLF wave activities observed in Iceland, Mem. Natl Inst. Polar Res., Spec. Issue, 47, 97-108, 1987.
Araki, T., N. Sato, R. Fujii, and T. Kikuchi, Phase and amplitude of VLF Omega signals observed
simultaneously at three stations in Iceland in association with magnetospheric substorms, Mem. Natl Inst.
Polar Res., Spec. Issue, 47, 109-116, 1987.
Suzuki, H., S. Shibuya, K. Maezawa, T. Hirasawa, and N. Sato, Statistical characteristics of polar chorus
observed at geomagnetically conjugate stations, Bull. of Yamgata Univ, Nat. Sci., 11, 373-387, 1987.
Nagata, T., Research of geomagnetically conjugate phenomena in Antarctic since IGY, Mem. Natl Inst.
Polar Res., Spec. Issue, 48, 1-45, http://id.nii.ac.jp/1291/00002174/, 1987.
Ono, T., Temporal variation of the geomagnetic conjugacy in Syowa-Iceland pair, Mem. Natl Inst. Polar Res.,
Spec. Issue, 48, 46-57, http://id.nii.ac.jp/1291/00002175/, 1987.
Fujii, R., N. Sato, T. Fukunishi, S. Kokubun, T. Araki, and Th. Saemundsson, Conjugacy of rapid motions
and small-scale deformations of an auroral arc by all-sky TV observations, Mem. Natl Inst. Polar Res., Spec.
Issue, 48, 72-80, http://id.nii.ac.jp/1291/00002177/, 1987.
Sato, N., and Th. Saemundsson, Conjugacy of electron auroras observed by all-sky cameras and scanningphotometers, Mem. Natl Inst. Polar Res., Spec. Issue, 48, 58-71, http://id.nii.ac.jp/1291/00002176/, 1987.

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Gendrin, R., Magnetic conjugacy as observed at apex of field lines: GEOS-1 and -2 results, Mem. Natl Inst.
Polar Res., Spec. Issue, 48. 93-120, http://id.nii.ac.jp/1291/00002179/, 1987.
Sato, N., and T. Hirasawa, Reply to Fraser-Smith, Reophys. Res., Lett., 15, 168-171, 1987.
Suzuki, H., H. Yamagishi, T. Kojima, Y. Hirashima, H. Murakami, N. Sato, T. Yamagami, M. Kodama, andH. Fukunishi, Auroral X-ray image observed by B15-3 balloon over Syowa Station, Antarctica, Proc. NIPR
Symp. Upper Atmos. Phys. 1, 46-55, http://doi.org/10.15094/00004033, 1987.
Sato, N., ELF emission activity in the southern and northern hemisphere on the ground, Proceedings ofChapman conference on Plasma Waves and Instabilities in Magnetospheres and at Comets, 234-237, 1987.
Tonegawa, Y., and N. Sato, A conjugacy area study of giant geomagnetic pulsations, Proceedings ofChapman Magnetospheres and at Comets, 317-320, 1987.
Higuchi, Y., S. Shibuya, and N. Sato, CNA pulsations accompanying hydromagnetic waves at conjugate
stations, Proceedings of Chapman Conference on Plasma Waves and Instabilities in Magnetospheres at
Comets, 321-324, 1987.
Kodama, M., S. Ohta, T. Yamagami, M. Namiki, J. Nishimura, Y. Hirashima, H. Murakami, K. Okudaira, H.
Suzuki, H. Miyaoka, N. Sato, and R. Fujii, Auroral X-ray image formings using three directional NaI(T1)
telescopes at balloon altitude, Proc. NIPR Symp. Upper Atmos. Phys. 1, 56-64,
http://doi.org/10.15094/00004034, 1988.
Sakurai, T., Y. Tonegawa, and N. Sato, Oscillation characteristics of Pi 2 in auroral zone: Syowa-Iceland
conjugate study, Proc. NIPR Symp. Upper Atmos. Phys. 1, 110-120, http://doi.org/10.15094/00004040, 1988.
Oguti, 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 fieldchanges on the ground and at conjugate satellites, J. Geomag. Geoelectr. 40, 505-536,
https://doi.org/10.5636/jgg.40.505, 1988.
Yamamoto, T., K. Hayashi, S. Kokubun, T. Oguti, 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 1. Pc 5 pulsations and concurrent aurorals in the downsector, J. Geomag. Geoelectr. 40, 553-570,
https://doi.org/10.5636/jgg.40.553, 1988.
Hayashi, K., T. Yamamoto, S. Kokubun, T. Oguti, 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 dimensional distribution and evolution of the source regions, J.
Geomg. Geoelectr. 40, 583-620, https://doi.org/10.5636/jgg.40.583, 1988.
Kitamura, T., O. Saka, M. Shimoizumi, H. Tachihara, T. Oguti, T. Araki, N. Sato, M. Ishitsuka, O. Veliz, andJ. B. Nyobe, Global mode of Pi 2 waves in the equatorial region - Difference of Pi 2 mode between high andequatorial latitudes -, J. Geomag. Geoelectr. 40, 621-634, https://doi.org/10.5636/jgg.40.621, 1988.
Uchida, K., Y. Tonegawa, R. Fujii, and N. Sato, Computer comilatory process of the data acquired by the
conjugate observation system in Iceland, Antarct. Res., 32. 238-257, http://doi.org/10.15094/00008591, 1988,(Japanese).
Higuti, Y., S. Sibuya, and N. Sato, CNA pulsations accompanying hydromagnetic waves at conjugate
stations, Planet. Space Sci., 36, 1255-1267, https://doi.org/10.1016/0032-0633(88)90077-3, 1988.
Yumato, K., K. Takahashi, T. Sakurai, T. R. Sutcliffe, S. Kokubun, T. Saito, H. Luhr, M. Kuwashima, and N.
Sato, Multiple ground-band and satellite observations of global Pi 2-range magnetic pulsations, J. Geophys.
Res., 95, 1575-1585, https://doi.org/10.1029/JA095iA09p15175, 1988.
Saito, H., N. Sato, Y. Tonegawa, T. Yoshino, and Th. Saemundsson, Seasonal and diurnal dependence of Pc
3-5 magnetic pulsation power at geomagnetically conjugate stations in the auroral zones, J. Geophys. Res.,94, 6945-6948, https://doi.org/10.1029/JA094iA06p06945, 1989.
Sato, N., and Th. Saemundsson, Pc 1-5 geomagnetic pulsations and 650 Hz ELF activity at ground level in
the northern and southern hemispheres, Electromagnetic Coupling in the Polar Clefts and Caps, ed. by P.E.
Sandholt and A, Eglland., Dordrecht, Kluwer Academic, 229-238 (NATO ASI Series C. vol.278),
https://link.springer.com/content/pdf/10.1007/978-94-009-0979-3_16.pdf, 1989.
Sato, N., Geophysical significances of Syowa-Iceland conjugate observations in the present stage and near
future, Antarct. Rec., 33, 329-339, http://doi.org/10.15094/00008637, 1989, (Japanese).
Sato, N., H. Saito, and Th. Saemundsson, Pc 3-5 magnetic pulsation activities observed at Syowa-Iceland
conjugate stations, Proc. for the International Symposium on Antarctic Research, Hangzhou, China,
514-520, 1989.
Sato, N., R. Fujii, and Th. Saemundsson, Conjugacy of pulsation auroral and their relation to geomagnetic
pulsations, Proc. for the International Symposium on Antarctic Research, Hangzhou, China, 499-507, 1989.
Nagano, H., T. Araki, T. Iemori, N. Sato, and M. Ayukawa, Characteristics of CNA associated withgeomagnetic sudden commencements, Proc. NIPR Symp. Upper Atmos, Phys. 2, 15-24,
http://doi.org/10.15094/00004060, 1989.
Tsunomura, S., A rough estimation of induction characteristics for geomagnetic variations at Syowa and
Iceland, Proc. NIPR Symp. Upper Atmos. Phys. 3, 61-69, http://doi.org/10.15094/00004085, 1990.
Sato, N., H. Suzuki, K. Maezawa, and Th. Saemundsson, Conjugacy of daytime ELF-VLF emission
activities in the auroral zones, J. Geophys. Res., 95, A6, 7847-7856,
https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/JA095iA06p07847, 1990.

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Sato, N., and Th. Saemundsson, Unstructured Pc 1-2 pulsations observed at geomagnetically conjugate
stations in the auroral zones, J. Geomag. Geoelectr., 42, 653-662, https://doi.org/10.5636/jgg.42.653, 1990.
Sato, N., H. Suzuki, K. Maezawa, and Th. Saemundsson, Conjugacy of daytime ELF-VLF emission
activities in the auroral zones, J. Geophys. Res., 95, A6, 7847-7856,
https://doi.org/10.1029/JA095iA06p07847, 1990.
Araki, T., N. Sato, R. Fujii, and T. Kikuchi, Diurnal phase and amplitude variatiosn of 12.1 kHz Omega
signal along the auroral zone, Proc. NIPR Symp. Upper Atmos. Phys. 3, 79-85,
http://doi.org/10.15094/00004087, 1990.
Yamagishi. H., Development of optical disk data base for Syowa-Iceland geomagnetically conjugate
observations, Antarc. Rec., 34, 242-262, http://doi.org/10.15094/00008680, 1990.
Sato, N., H. Saito, and Th. Saemundsson, Pc 3-5 magnetic pulsation activities observed at Syowa-Iceland
conjugate stations, Proc. for the International symposium on Antarctic Research, Hangzhou, China,
514-520, 1990.
Sato, N., R. Fujii, and Th. Saemundsson, Conjugacy of pulsating aurora and their relation to geomagnetic
pulsations, Proc. for the International Symposium on Antarctic Research, Hangzhou, China, 499-507, 1990.
Araki, T., N. Sato, R. Fujii, and T. Kikuchi, Diurnal phase and amplitude variation at 12.1 kHz over ahigh-latitude path of 1300 km, Proc. NIPR Symp. Upper Atmos. Phys. 3, 79-85,
http://doi.org/10.15094/00004087, 1990.
Sato, N., T. Sasahara, H. Suzuki, K. Maezawa, and Th. Saemundsson, Solar influence of ELF-VLF emission
observed at conjugate stations, J. Geophys. Res., 96, 11455-11460, https://doi.org/10.1029/91JA01040, 1991.
Araki, T., and N. Sato, CNA quiet day curves and their sidereal time dependence, Proc. NIPR Symp. Upper
Atmos. Phys. 4, 62-69, http://doi.org/10.15094/00004103, 1991.
Shibuya, S., Y. Higuchi, N. Sato, and K. Maezawa, Conjugacy of CNA pulations and their source movementin the auroral zone, Proc. NIPR Symp. Atmos. Phys. 4, 51-61, http://doi.org/10.15094/00004102, 1991.
Hayakawa, M., S. Shimakura, T. Kobayashi, N. Sato, and T. Yoshino, A study of polarization of irregularpulsations of diminishing period and their generation mechanism, Plan. Space Sci, Volume 40, Issue 8,
Pages 1081-1091, https://doi.org/10.1016/0032-0633(92)90037-O, August 1992.
Sato, N., T. Sasahara, H. Suzuki, K. Maezawa, and Th. Saemundsson, Solar influence of ELF-VLF emission
observed at conjugate stations, J. Geophys. Res., 96, 11455-11460, https://doi.org/10.1029/91JA01040, 1991.
Takahashi, K., N. Sato, Y. Tonegawa, H. Luehr, H. E. Spence, and R. Sheldon, Ground-satellite observationsof a Pg pulsation. J. Geophys. Res., 10714-10732, 1992.
Kato, K., Y. Tonegawa, N. Sato, Estimation of geomagnetic conjugate points by using Pc5 pulsations、Antarctic Record, Vol.36, 1-14, http://doi.org/10.15094/00008751, 1992. (Japanese)
Takahashi, K., N. Sato, J. Warnecke, H. Luhr, H. E. Spence, and Y. Tonegawa, On the standing wave modeof giant pulsations, J. Geophys. Res., 97, 10717-10732, https://doi.org/10.1029/92JA00382, 1992.
Hayakawa, M., S. Shimakura, Y. Kobayashi, and N. Sato, Statistical charcteristics of the polarization of Pc
1 micropulsations at high latitudes, Planet. Space Sci., 40, 1353-1362,
https://doi.org/10.1016/0032-0633(92)90091-2, 1992.
Yamagishi, H., M. Nishino, M. Sato, Y. Kato, M. Kojima, N. Sato, T. Kikuchi, Development of Imaging
Riometers, Nankyoku Shiryo (Antarctic Record), 36, 2, 227-250, https://nipr.repo.nii.ac.jp/records/8767,
1992. (Japanese)
Hashimoto, K., N. Sato, M. Kusunose, Statistical study on the conjugacy of geomagnetic field variations,
Antarctic Record, 37, 1-18, http://doi.org/10.15094/00008797, 1993. (Japanese)
Aso, Takehiko, M. Ejiri, H. Miyaoka, T. Ono, T. Hashimoto, T. Yabu, M. Abe, Aurora stereo observations in
Iceland, Proceedings of the NIPR Symposium on Upper Atmosphere Physics, 6, 1-14,
https://nipr.repo.nii.ac.jp/records/4133, 1993.
Kato, K., T. Ono, M. Kunitake, N. Sato, T. Saemundsson, Report of the 1992 geomagnetic conjugate
campaign and the present observation system in Iceland, Antarctic Record, Vol. 37, 348-363,
https://doi.org/10.15094/00008826 1993. (Japanese)
Takahashi, K., B. J. Anderson, P. T. Nowell, T. Yamamoto, and N. Sato, Propagation of compressional Pc 3
pulsations from space to the ground: A case study using maltipoint measurements, Geophysical Monograph,81, 355-363, https://doi.org/10.1029/GM081p0355, 1994.
Kato, K., N. Sato, and Y. Tonegawa, Estimation of geomagnetic conjugate points using Pc 5 geomagnetic
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