Pubication related to OMTI

1. Shiokawa, K., Y. Katoh, M. Satoh, M. K. Ejiri, T. Ogawa, T. Nakamura, T. Tsuda, R. H. Wiens,
   Development of optical mesosphere thermosphere imagers (OMTI),
   Earth, Planets, and Space, 51, 887-896, 1999.
2. Katoh, Y., K. Shiokawa, M. Satoh, M. K. Ejiri, T. Ogawa,
   Calibration of all-sky cameras and tilting-photometers using an integrating-sphere and a spectrometer,
   Antarctic Record, 43, 1-15, 1999.
3. Kubota, M., M. Ishii, K. Shiokawa, M. K. Ejiri, and T. Ogawa,
   Height measurements of nightglow structures observed by all-sky imagers,
   Adv. Space Res., 24, 593-596, 1999.
4. Shiokawa, K., Y. Katoh, M. Satoh, M. K. Ejiri, and T. Ogawa,
   Integrating-sphere calibration of all-sky cameras for nightglow measurements,
   Adv. Space Res., 26, 1025-1028, 2000.
5. Shiokawa, K., Y. Otsuka, T. Ogawa, K. Igarashi, S. Miyazaki, F. J. Rich, A. Saito, K. Yumoto,
   Comprehensive imaging observations of mid-latitude ionospheric disturbances during storm time substorms,
   J. Geophys. Res., 105, 27,067-27,080, 2000.
6. Shiokawa, K. and Y. Kiyama,
   A search for the springtime transition of lower thermospheric atomic oxygen using long-term midlatitude airglow data,
   J. Atmos. Solar Terr. Phys., 62, 1215-1219, 2000.
7. Shiokawa, K., M. K. Ejiri, T. Ogawa, and T. Nakamura,
   Distant lunar sodium tail observed in the Japanese local-time sector during the Leonid meteor shower of 1998,
   J. Geophys. Res., 105, 24,621-24,626, 2000.
8. Shiokawa, K., M. K. Ejiri, Y. Otsuka, T. Ogawa, M. Kubota, K. Igarashi, A. Saito, and T. Nakamura,
   Multi-point observations of short-period mesospheric gravity waves over Japan during the FRONT campaign,
   Geophys. Res. Lett., 24, 4057-4060, 2000.
9. Kubota, M., K. Shiokawa, M. K. Ejiri, Y. Otsuka, T. Ogawa, T. Sakanoi, H. Fukunishi, M. Yamamoto, S. Fukao, and A. Saito,
   Traveling ionospheric disturbances observed in the OI 630-nm nightglow images over Japan by using a multi-point imager network during the FRONT campaign,
   Geophys. Res. Lett., 24, 4037-4040, 2000.
10. Shiokawa, K., T. Kadota, M. K. Ejiri, Y. Otsuka, Y. Katoh, M. Satoh, and T. Ogawa,
    Three-channel imaging Fabry-Perot interferometer for midlatitude airglow measurement,
    Appl. Opt., 40, 4286-4296, 2001.
11. Shiokawa, K., T. Ogawa, H. Oya, F. J. Rich, and K. Yumoto,
    A stable auroral red (SAR) arc observed over Japan after an interval of very weak solar wind,
    J. Geophys. Res., 106, 26,091-26,101, 2001.
12. Saito, A., M. Nishimura, M. Yamamoto, M. Kubota, K. Shiokawa, Y. Otsuka, T. Tsugawa, S. Fukao, T. Ogawa, M. Ishii, T. Sakanoi, and S. Miyazaki,
    Traveling ionospheric disturbances detected in the FRONT campaign,
    Geophys. Res. Lett., 28, 689-692, 2001.
13. Sahai, Y., K. Shiokawa, Y. Otsuka, C. Ihara, T. Ogawa, K. Igarashi, S. Miyazaki, and T. Saito,
    Imaging observations of mid-latitude ionospheric disturbances during the geomagnetic storm on February 12, 2000,
    J. Geophys. Res., 106, 24,481-24,492, 2001.
14. Ejiri, M. K., K. Shiokawa, T. Ogawa, T. Nakamura, R. Maekawa, T. Tsuda, and M. Kubota,
    Observations of small-scale gravity waves near the mesopause obtained from four all-sky CCD imagers and the MU radar,
    J. Geophys. Res., 106, 22,793-22,799, 2001.
15. Nakamura, T., T. Tsuda, R. Maekawa, M. Tsutsumi, K. Shiokawa, and T. Ogawa,
    Seasonal variation of gravity waves with various temporal and horizontal scales in the MLT region observed with radar and airglow imaging, Adv. Space Res., 27, 1737-1742, 2001.
16. Shiokawa, K., Y. Otsuka, M. K. Ejiri, Y. Sahai, T. Kadota, C. Ihara, T. Ogawa, K. Igarashi, S. Miyazaki, and A. Saito, Imaging observations of the equatorward limit of midlatitude traveling ionospheric disturbances, Earth Planets Space, 54, 57-62, 2002.
17. Shiokawa, K., Y. Otsuka, T. Ogawa, N. Balan, K. Igarashi, A. J. Ridley, D. J. Knipp, A. Saito, and K. Yumoto,
    A large-scale traveling ionospheric disturbance during the magnetic storm of September 15, 1999,
    J. Geophys. Res., 107(A6), 10.1029/2001JA000245, 2002.
18. Shiokawa, K., Y. Katoh, M. Satoh, T. Ogawa, M. Taguchi, and H. Yamagishi,
    A new auroral spectrometer using an acousto-optic tunable filter,
    Advances in Polar Upper Atmosphere Research, National Institute of Polar Research, Japan, No.16, 146-156, 2002.
19. Ogawa, T., N. Balan, Y. Otsuka, K. Shiokawa, C. Ihara, T. Shimomai, and A. Saito,
    Observations and modeling of 630 nm airglow and total electron content associated with traveling ionospheric disturbances over Shigaraki, Japan,
    Earth Planets Space, 54, 45-56, 2002.
20. Ejiri, M. K., K. Shiokawa, T. Ogawa, M. Kubota, T. Nakamura, and T. Tsuda,
    Dual-site imaging observations of small-scale wave structures through OH and OI nightglow emissions,
    Geophys. Res. Lett., 29, No.10, 10.1029/2001GL014257, 2002.
21. Iwagami, N., T. Shibaki, T. Suzuki, Y. Yamada, H. Onishi, Y. Takahashi, H. Yamamoto, H. Sekiguchi, K. Mori, Y. Sano, M. Kubota, Y. Murayama, M. Ishii, K.-I. Oyama, R. Yoshimura, M. Shimoyama, Y. Koizumi, K. Shiokawa, N. Takegawa, and T. Nakamura,
    The WAVE2000 campaign: Overview and preliminary results,
    J. Atmos. Solar-Terr. Phys., 64, 1095-1104, 2002.
22. Otsuka, Y., K. Shiokawa, T. Ogawa, and P. Wilkinson,
    Geomagnetic conjugate observations of equatorial airglow depletions,
    Geophys. Res. Lett., 29, No.15, 43-1-4, 10.1029/2002GL015347, 2002.
23. Gavrilov, N. M., K. Shiokawa, and T. Ogawa,
    Seasonal variations of medium-scale gravity wave parameters in the lower thermosphere obtained from spectral airglow temperature imager observations at Shigaraki, Japan,
    J. Geophys. Res., 107(D24), 4755, doi:10.1029/2001JD001469, 2002.
24. Shiokawa, K., M. K. Ejiri, T. Ogawa, Y. Yamada, H. Fukunishi, K. Igarashi, and T. Nakamura,
    A localized structure in OH airglow images near the mesopause region,
    J. Geophys. Res., 108(D2), 4048, doi:10.1029/2002JD002462, 2003.
25. Shiokawa, K., C. Ihara, Y. Otsuka, and T. Ogawa,
    Statistical study of nighttime medium-scale traveling ionospheric disturbances using midlatitude airglow images,
    J. Geophys. Res., 108(A1), 1052, doi:10.1029/2002JA009491, 2003.
26. Shiokawa, K., Y. Otsuka, C. Ihara, T. Ogawa, and F. J. Rich,
    Ground and satellite observations of nighttime medium-scale traveling ionospheric disturbance at midlatitude,
    J. Geophys. Res., 108(A4), 1145, doi:10.1029/2002JA009639, 2003.
27. Shiokawa, K., T. Kadota, Y. Otsuka, T. Ogawa, T. Nakamura, and S. Fukao,
    A two-channel Fabry-Perot interferometer with thermoelectric-cooled CCD detectors for neutral wind measurement in the upper atmosphere,
    Earth Planets Space, 55, 271-275, 2003.
28. Shiokawa, K., Y. Otsuka, T. Ogawa, S. Kawamura, M. Yamamoto, S. Fukao, T. Nakamura, T. Tsuda, N. Balan, K. Igarashi, G. Lu, A. Saito, and K. Yumoto,
    Thermospheric wind during a storm-time large-scale traveling ionospheric disturbance,
    J. Geophys. Res., 108(A12), 1423, doi:10.1029/2003JA010001, 2003.
29. Otsuka, Y., T. Kadota, K. Shiokawa, T. Ogawa, S. Kawamura, S. Fukao, and S.-R. Zhang,
    Optical and radio measurements of a 630-nm airglow enhancement propagating over Japan on September 9, 1999,
    J. Geophys. Res., 108 (A6), 1252, doi:10.1029/2002JA009594, 2003.
30. Ejiri, M. K., K. Shiokawa, T. Ogawa, K. Igarashi, T. Nakamura, and T. Tsuda,
    Statistical study of short-period gravity waves in OH and OI nightglow images at two separated sites,
    J. Geophys. Res., 108 (D21), 4679, doi:10.1029/2002JD002795, 2003.
31. Shiokawa, K., Y. Otsuka, T. Ogawa, H. Takahashi, T. Nakamura, and T. Shimomai,
    Comparison of OH rotational temperatures measured by the Spectral Airglow Temperature Imager (SATI) and by a tilting-filter photometer,
    J. Atmos. Solar-Terr. Phys., 66, 891-897, 2004.
32. Shiokawa, K., Y. Otsuka, T. Ogawa, and P. Wilkinson,
    Time evolution of high-altitude plasma bubbles imaged at geomagnetic conjugate points,
    Ann. Geophys., 22, 3137-3143, 2004.
33. Fujii, J., T. Nakamura, T. Tsuda, and K. Shiokawa,
    Comparison of winds measured by MU radar and Fabry-Perot interferometer and effect of OI5577 airglow height variations,
    J. Atmos. Solar-Terr. Phys., 66, 573-583, 2004.
34. Takahashi, H., T. Nakamura, K. Shiokawa, T. Tsuda, L. M. Lima, and D. Gobbi,
    Atmospheric density and pressure inferred from the meteor diffusion coefficient and airglow O2b temperature in the MLT region,
    Earth Planets Space, 56, 249-258, 2004.
35. Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, and P. J. Wilkinson,
    Statistical characteristics of gravity waves observed by an all-sky imager at Darwin, Australia,
    J. Geophys. Res., 109, D20S07, doi:10.1029/2003JD004336, 2004.
36. Otsuka, Y., K. Shiokawa, T. Ogawa, and P. Wilkinson,
    Geomagnetic conjugate observations of medium-scale traveling ionospheric disturbances at midlatitude using all-sky airglow imagers,
    Geophys. Res. Lett., L15803, doi:10.1029/2004GL020262, 2004.
37. Otsuka, Y., K. Shiokawa, T. Ogawa, T. Yokoyama, M. Yamamoto, and S. Fukao,
    Spatial relationship of equatorial plasma bubbles and field-aligned irregularities observed with an all-sky airglow imager and the Equatorial Atmosphere Radar,
    Geophys. Res. Lett., 31, L20802, doi:10.1029/2004GL020869, 2004.
38. Nakazawa, Y., T. Okada, and K. Shiokawa,
    Understanding the "SEKKI" phenomena in Japanese historical literatures based on the modern science of low-latitude aurora,
    Earth Planets Space, Vol. 56 (No. 12), pp. e41-e44, 2004.
39. Shiokawa, K., T. Ogawa, and Y. Kamide,
    Low-latitude auroras observed in Japan: 1999-2004,
    J. Geophys. Res., 110, A05202, doi:10.1029/2004JA010706, 2005.
40. Shiokawa, K., Y. Otsuka, T. Tsugawa, T. Ogawa, A. Saito, K. Ohshima, M. Kubota, T. Maruyama, T. Nakamura, M. Yamamoto, and P. Wilkinson,
    Geomagnetic conjugate observation of nighttime medium-scale and large-scale traveling ionospheric disturbances: FRONT3 campaign,
    J. Geophys. Res., 110, A05303, doi:10.1029/2004JA010845, 2005.
41. Iwagami, N., S. Ohtsuki, M. Akojima, M. Kubota, Y. Murayama, S. Kawamura, R. Yoshimura, T. Nakamura, H. Yamamoto, H. Sekiguchi, N. Kimura, K. Shiokawa, T. Okada, K. Ishisaka, Y. Ashihara, Y. Kaiho, M. Abo, T. Abe, Y. Koizumi, and K.-I. Oyama,
    Waves in airglow structures experiment 2004: Overview and preliminary results,
    Adv. Space Res. vol.35, no.11, 1964-1970, 2005.
42. Ogawa, T., E. Sagawa, Y. Otsuka, K. Shiokawa, T. J. Immel, S. B. Mende, and P. Wilkinson,
    Simultaneous ground- and satellite-based airglow observations of geomagnetic conjugate plasma bubbles in the equatorial anomaly,
    Earth Planets Space, 57, 385-392, 2005.
43. Takahashi, H., C. M. Wrasse, D. Gobbi, T. Nakamura, K. Shiokawa, and L. M. Lima,
    Airglow OH emission height inferred from the OH temperature and meteor trail diffusion coefficient,
    Adv. Space Res., vol.35, No.11, 1940-1944, 2005.
44. Onoma, F., Y. Otsuka, K. Shiokawa, T. Ogawa, M. Yamamoto, S. Fukao, and S. Saito,
    Relationship between propagation direction of gravity waves in OH and OI airglow images and VHF radar echo occurrence during the SEEK-2 campaign,
    Ann. Geophys., 23, 2385-2390, 2005.
45. Ogawa, T., Y. Otsuka, F. Onoma, K. Shiokawa, and M. Yamamoto,
    The first coordinated observations of mid-latitude E-region quasi-periodic radar echoes and lower thermospheric 557.7-nm airglow,
    Ann. Geophys., 23, 2391-2399, 2005.
46. Nakata, H., I. Nagashima, K. Sakata, Y. Otsuka, Y. Akaike, T. Takano, S. Shimakura, K. Shiokawa, and T. Ogawa,
    Observations of equatorial plasma bubbles using broadcast VHF radio waves,
    Geophys. Res. Lett., 32, L17110, doi:10.1029/2005GL023243, 2005.
47. Sahai, Y., P. R. Fagundes, F. Becker-Guedes, M. J. A. Bolzan, J. R. Abalde, V. G. Pillat, R. de Jesus, A. G. R. Mokodsi, W. L. C. Lima, H. T. Lan, J. W. MacDougall, K. Igarashi, K. Shiokawa, G. Crowley, and J. A. Bittencourt,
    Effects of the major geomagnetic storms of October 2003 on the equatorial and low-latitude F region in two longitudinal sectors,
    J. Geophys. Res., 110, A12S91, doi:10.1029/2004JA010999, 2005.
48. Shiokawa, K., Y. Otsuka, and T. Ogawa,
    Quasiperiodic southward moving waves in 630-nm airglow images in the equatorial thermosphere,
    J. Geophys. Res., 111, A06301, doi:10.1029/2005JA011406, 2006.
49. Shiokawa, K., S. Suzuki, Y. Otsuka, T. Ogawa, T. Nakamura, M. G. Mlynczak, and J. M. Russell III,
    A multi-instrument measurement of a mesospheric front-like structure at the equator,
    J. Meteor. Soc. Japan, Vol. 84A, pp. 305-316, 2006.
50. Ogawa, T., Y. Otsuka, K. Shiokawa, A. Saito, and M. Nishioka,
    Ionospheric disturbances over Indonesia and their possible association with atmospheric gravity waves from the troposphere,
    J. Meteor. Soc. Japan, Vol. 84A, pp. 327-342, 2006.
51. Kubota, M., S. Kawamura, M. Abo, Y. Koizumi, Y. Murayama, M. Yamamori, K. Shiokawa, Y. Otsuka, M. Uchiumi, K. Igarashi, T. Abe, K.-I. Oyama, and N. Iwagami,
    A fast-propagating, large-scale atmospheric gravity wave observed in the WAVE2004 campaign,
    J. Geophys. Res., 111, D21110, doi:10.1029/2005JD006788, 2006.
52. Hosokawa, K., K. Shiokawa, Y. Otsuka, A. Nakajima, T. Ogawa, and J. D. Kelly,
    Estimating drift velocity of polar cap patches with all-sky airglow imager at Resolute Bay, Canada,
    Geophys. Res. Lett., vol. 33, L15111, doi:10.1029/2006GL026916, 2006.
53. Takahashi, H., C. M. Wrasse, D. Pancheva, M. A. Abdu, I. S. Batista, L. M. Lima, , P. P. Batista, B. R. Clemesha, and K. Shiokawa,
    Signatures of 3-6 day planetary waves in the equatorial mesosphere and ionosphere,
    Ann. Geophys., 24, 3343-3350,, 2006.
54. Shiokawa, K., S. Suzuki, Y. Otsuka, T. Ogawa, T. Nakamura, and T. Horinouchi,
    An intense gravity wave near the mesopause region observed by a Fabry-Perot interferometer and an airglow imager,
    J. Geophys. Res., 112, D07106, doi:10.1029/2006JD007385, 2007.
55. Shiokawa, K., G. Lu, Y. Otsuka, T. Ogawa, M. Yamamoto, N. Nishitani, and N. Sato,
    Ground observation and AMIE-TIEGCM modeling of a storm-time traveling ionospheric disturbance,
    J. Geophys. Res., 112, A05308, doi:10.1029/2006JA011772, 2007.
56. Shiokawa, K., Y. Otsuka, S. Suzuki, T. Katoh, Y. Katoh, M. Satoh, T. Ogawa, H. Takahashi, D. Gobbi, T. Nakamura, B. P. Williams, C.-Y. She, M. Taguchi, and T. Shimomai,
    Development of airglow temperature photometers with cooled-CCD detectors,
    Earth Planets Space, 59, 585-599, 2007.
57. Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, K. Nakamura, and T. Nakamura,
    A concentric gravity wave structure in the mesospheric airglow images,
    J. Geophys. Res., 112, D02102, doi:10.1029/2005JD006558, 2007
58. Sakaguchi, K., K. Shiokawa, A. Ieda, Y. Miyoshi, Y. Otsuka, T. Ogawa, M. Connors, E. F. Donovan, and F. J. Rich,
    Simultaneous ground and satellite observations of an isolated proton arc at subauroral latitudes,
    J. Geophys. Res., 112, A04202, doi:10.1029/2006JA012135, 2007.
59. Otsuka, Y., F. Onoma, K. Shiokawa, T. Ogawa, M. Yamamoto, and S. Fukao,
    Simultaneous observations of nighttime medium-scale traveling ionospheric disturbances and E region field-aligned irregularities at midlatitude,
    J. Geophys. Res., 112, A06317, doi:10.1029/2005JA011548, 2007.
60. Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, M. Kubota, M. Tsutsumi, T. Nakamura, and D. C. Fritts,
    Gravity wave momentum flux in the upper mesosphere derived from OH airglow imaging measurements,
    Earth Planets Space, 59, 421-428, 2007.
61. Shiokawa, K., T. Tsugawa, Y. Otsuka, T. Ogawa, G. Lu, A. Saito, and M. Yamamoto,
    Optical and radio observations and AMIE/TIEGCM modeling of nighttime traveling ionospheric disturbances at mid-latitudes during geomagnetic storms,
    AGU monograph on Mid-Latitude Ionospheric Dynamics and Disturbances, 271-281, 2008.
62. Shiokawa, K., Y. Otsuka, N. Nishitani, T. Ogawa, T. Tsugawa, T. Maruyama, S. E. Smirnov, V. V. Bychkov, and B. M. Shevtsov,
    Northeastward motion of nighttime medium-scale traveling ionospheric disturbances at middle latitudes observed by an airglow imager,
    J. Geophys. Res., 113, A12312, doi:10.1029/2008JA013417, 2008.
63. Sakaguchi, K., K. Shiokawa, Y. Miyoshi, Y. Otsuka, T. Ogawa, K. Asamura, and M. Connors,
    Simultaneous appearance of isolated auroral arcs and Pc 1 geomagnetic pulsations at subauroral latitudes,
    J. Geophys. Res., 113, A05201, doi:10.1029/2007JA012888, 2008.
64. Suzuki H., K. Shiokawa, M. Tsutsumi, T. Nakamura and M. Taguchi,
    Atmospheric gravity waves identified by ground-based observations of the intensity and rotational temperature of OH airglow,
    Polar Science, 2, 1-8, 2008.
65. Miyoshi, Y., K. Sakaguchi, K. Shiokawa, D. Evans, J. Albert, M. Connors, and V. Jordanova,
    Precipitation of radiation belt electrons by EMIC waves, observed from ground and space,
    Geophys. Res. Lett., 35, doi:10.1029/2008GL035727, 2008.
66. Shiokawa, K., K. Hosokawa, K. Sakaguchi, A. Ieda, Y. Otsuka, T. Ogawa and M. Connors,
    The Optical Mesosphere Thermosphere Imagers (OMTIs) for network measurements of aurora and airglow, Future Perspectives of Space Plasma and Particle Instrumentation and International Collaborations,
    AIP Conference proceedings, edited by M. Hirahara, Y. Miyoshi, N. Terada, I. Shinohara, and T. Mukai, AIP Conference proceedings, pp.212-215, doi:10.1063/1.3169292, 2009.
67. Shiokawa, K., Y. Otsuka, and T. Ogawa,
    Propagation characteristics of nighttime mesospheric and thermospheric waves observed by optical mesosphere thermosphere imagers at middle and low latitudes,
    Earth Planets Space, 61, 479-491, 2009.
68. Suzuki, S., K. Shiokawa, K. Hosokawa, K. Nakamura, and W. K. Hocking,
    Statistical characteristics of polar cap mesospheric gravity waves observed by an all-sky airglow imager at Resolute Bay, Canada,
    J. Geophys. Res., 114, A01311, doi:10.1029/2008JA013652, 2009.
69. Hosokawa, K., K. Shiokawa, Y. Otsuka, and T. Ogawa, J. P. St-Maurice, G. J. Sofko, and D. A. Andre,
    Relationship between polar cap patches and field-aligned irregularities as observed with an all-sky airglow imager at Resolute Bay and the PolarDARN radar at Rankin Inlet,
    J. Geophys. Res., 114, A03306, doi:10.1029/2008JA013707, 2009.
70. Otsuka, Y., K. Shiokawa, T. Ogawa, T. Yokoyama, and M. Yamamoto,
    Spatial relationship of nighttime medium-scale traveling ionospheric disturbances and F-region field-aligned irregularities observed with two spaced all-sky airglow imagers and the MU radar,
    J. Geophys. Res., 114, A05302, doi:10.1029/2008JA013902, 2009.
71. Ogawa, T., N. Nishitani, Y. Otsuka, K. Shiokawa, T. Tsugawa, and K. Hosokawa,
    Medium-scale traveling ionospheric disturbances observed with the SuperDARN Hokkaido radar, all-sky imager and GPS network, and their relation to concurrent sporadic-E irregularities,
    J. Geophys. Res., 114, A03316, doi:10.1029/2008JA013893, 2009.
72. Hosokawa, K., T. Kashimoto, S. Suzuki, K. Shiokawa, Y. Otsuka and T. Ogawa,
    Motion of polar cap patches: A statistical study with all-sky airglow imager at Resolute Bay, Canada,
    J. Geophys. Res., 114, A04318, doi:10.1029/2008JA014020, 2009.
73. Hosokawa, K., T. Tsugawa, K. Shiokawa, Y. Otsuka, T. Ogawa, and M. R. Hairston,
    Unusually elongated, bright airglow plume in the polar cap F region: Is it a tongue of ionization?,
    Geophys. Res. Lett., 36, L07103, doi:10.1029/2009GL037512, 2009.
74. Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, T. Nakamura, and A.Z. Liu,
    Characteristics of equatorial gravity waves derived from mesospheric airglow imagning observations,
    Ann. Geophys., 27, 1625-1629, 2009.
75. Saroso, S., K. Hattori, H. Ishikawa, Y. Ida, R. Shirogane, M. Hayakawa, K. Yumoto, K. Shiokawa, and M. Nishihashi,
    ULF geomagnetic anomalous changes possibly associated with 2004-2005 Sumatra earthquakes,
    Phys. Chem. Earth, 34, 343-349, 2009.
76. Ogawa, T., Y. Otsuka, K. Shiokawa, T. Tsugawa, A. Saito, K. Hoshinoo, K. Matunaga, M. Kubota, and M. Ishii,
    Medium-scale traveling ionospheric disturbances and plasma bubbles observed by an all-sky airglow at Yonaguni, Japan,
    Terr. Atmos. Ocean Sci., 20, 287-295, doi:10.3319/TAO.2007.12.06.02(F3C), 2009.
77. Takahashi, H., M. A. Abdu, C. M. Wrasse, J. Fechine, I. S. Batista, D. Pancheva, L. M. Lima, P. P. Batista, B. R. Clemesha, K. Shiokawa, D. Gobbi, M. G. Mlynczak, and J. M. Russell,
    Possible influence of ultra-fast Kelvin wave on the equatorial ionosphere evening uplifting,
    Earth Planets Space, 61, 455-462, 2009.
78. Ogawa, T., Y. Miyoshi, Y. Otsuka, T. Nakamura, and K. Shiokawa,
    Equatorial GPS ionospheric scintillations over Kototabang, Indonesia and their relation to atmospheric waves from below,
    Earth Planets Space, 61(4), 397-410, 2009.
79. Suzuki, S., K. Hosokawa, T. F. Shibata, K. Shiokawa, Y. Otsuka, N. Nishitani, T. Ogawa, A. V. Koustov, and B. M. Shevtsov,
    Coordinated observations of nighttime medium-scale traveling ionospheric disturbances in 630-nm airglow and HF radar echoes at midlatitudes,
    J. Geophys. Res., 114, A07312, doi:10.1029/2008JA013963, 2009.
80. Koustov, A., N. Nishitani, K. Shiokawa, S. Suzuki, and B.M. Shevtsov,
    Joint observations of a traveling ionospheric disturbance with the Paratunka OMTI camera and the Hokkaido HF radar,
    Ann. Geophys., 27, 2399-2406, 2009.
81. Hosokawa, K., J. P. St-Maurice, G. J. Sofko, K. Shiokawa, Y. Otsuka, and T. Ogawa,
    Reorganization of polar cap patches through shears in the background plasma convection,
    J. Geophys. Res., 115, A01303, doi:10.1029/2009JA014599, 2010.
82. Suzuki, S., T. Nakamura , M. K. Ejiri, M. Tsutsumi, K. Shiokawa, and T. Kawahara,
    Simultaneous airglow, lidar, and radar measurements of mesospheric gravity waves over Japan,
    J. Geophys. Res., 115, D24113, doi:10.1029/2010JD014674, 2010.
83. Oyama, S., K. Shiokawa, J. Kurihara, T. T. Tsuda, S. Nozawa, Y. Ogawa, Y. Otsuka, and B. J. Watkins,
    Lower-thermospheric wind fluctuations measured with an FPI in pulsating aurora at Tromsoe, Norway,
    Ann. Geophys., 28, 1847-1857, 2010.
84. Hosokawa, K., T. Tsugawa, K. Shiokawa, Y. Otsuka, N. Nishitani, T. Ogawa and M. Hariston,
    Dynamic temporal evolution of polar cap tongue of ionization during magnetic storm,
    J. Geophys. Res., 115, A12333, doi:10.1029/2010JA015848, 2010.
85. Miyoshi, Y., K. Seki, K. Shiokawa, T. Ono, Y. Kasaba, A. Kumamoto, M. Hirahara, T. Takashima, K. Asamura, A. Matsuoka, T. Nagatsuma, and ERG working group,
    Geospace Exploration Mission: ERG project,
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86. Hosokawa, K., J. I. Moen, K. Shiokawa, and Y. Otsuka,
    Motion of polar cap arcs,
    J. Geophys. Res., 116, A01305, doi:10.1029/2010JA015906, 2011.
87. Adachi, T., Y. Otsuka, M. Yamaoka, M. Yamamoto, K. Shiokawa, A. B. Chen, and R. Hsu,
    First satellite-imaging observation of medium-scale traveling ionospheric disturbances by FORMOSAT-2/ISUAL,
    Geophys. Res. Lett., 38, L04101, doi:10.1029/2010GL046268, 2011.
88. Hosokawa, K., J. Moen, K. Shiokawa, and Y. Otsuka,
    Decay of polar cap patch,
    J. Geophys. Res., 116, A05306, doi:10.1029/2010JA016297, May 10, 2011.
89. Takahashi, H., A. Onohara, K. Shiokawa, F. Vargas, and D. Gobbi,
    Atmospheric wave induced O2 and OH airglow intensity variations: effect of vertical wavelength and damping,
    Ann. Geophys., 29, 1-7, 2011.
90. Lynn, K. J. W., Y. Otsuka, and K. Shiokawa,
    Simultaneous observations at Darwin of equatorial bubbles by ionosonde-based range/time displays and airglow imaging,
    Geophys. Res. Lett., doi:10.1029/2011GL049856, 38, L23101, 2011.
91. Shiokawa, K., Y. Otsuka, S. Oyama, S. Nozawa, M. Satoh, Y. Katoh, Y. Hamaguchi, Y. Yamamoto and J. Meriwether,
    Development of low-cost sky-scanning Fabry-Perot interferometers for airglow and auroral studies,
    Earth Planets Space, vol.64, no.11, 1033-1046, 2012.
92. Shiokawa, K., M. Mori, Y. Otsuka, S. Oyama, and S. Nozawa,
    Motion of high-latitude nighttime medium-scale traveling ionospheric disturbances associated with auroral brightening,
    J. Geophys. Res., 117, A10316, doi:10.1029/2012JA017928, 2012.
93. Nomura, R., K. Shiokawa, K. Sakaguchi, Y. Otsuka, and M. Connors,
    Polarization of Pc1/EMIC waves and related proton auroras observed at subauroral latitudes,
    J. Geophys. Res., 117, A02318, doi:10.1029/2011JA017241, 2012.
94. Dahlgren, H., J. L. Semeter, K. Hosokawa, M. J. Nicolls, T. W. Butler, M. G. Johnsen, and K. Shiokawa,
    Direct Three-dimensional Imaging of Polar Ionospheric Structures with the Resolute Bay Incoherent Scatter Radar,
    Geophys. Res. Lett., Vol. 39, No. 5, L05104, doi:10.1029/2012GL050895, 2012.
95. Koustov, A. V., K. Hosokawa, N. Nishitani, K. Shiokawa, and H. Liu,
    Signatures of moving polar cap arcs in the F-region PolarDARN echoes,
    Ann. Geophys., 30, 441-455, 2012.
96. Otsuka, Y., K. Shiokawa, and T. Ogawa,
    Disappearance of equatorial plasma bubble after interaction with mid-latitude medium-scale traveling ionospheric disturbance,
    Geophys. Res. Lett., 39, L14105, doi:10.1029/2012GL052286, 2012.
97. Fukushima, D., K. Shiokawa, Y. Otsuka, and T. Ogawa,
    Observation of equatorial nighttime medium-scale traveling ionospheric disturbances in 630-nm airglow images over 7 years,
    J. Geophys. Res., 117, A10324, doi:10.1029/2012JA017758, 2012.
98. Dahlgren, H., G. W. Perry, J. L. Semeter, J.-P. St.-Maurice, K. Hosokawa, M. J. Nicolls, M. Greffen, K. Shiokawa, and C. Heinselman,
    Space-time variability of polar cap patches: Direct evidence for internal plasma structuring,
    J. Geophys. Res., 117, A09312, doi:10.1029/2012JA017961, 2012.
99. Shiokawa, K., Y. Miyoshi, P. C. Brandt, D. S. Evans, H. U. Frey, J. Goldstein, and K. Yumoto,
    Ground and satellite observations of low-latitude red auroras at the initial phase of magnetic storms,
    J. Geophys. Res., 118, 256-270, doi:10.1029/2012JA018001, 2013.
100. Shiokawa, K., M. Mori, Y. Otsuka, S. Oyama, S. Nozawa, S. Suzuki, and M. Connors,
     Observation of nighttime medium-scale travelling ionospheric disturbances by two 630-nm airglow imagers near the auroral zone,
     J. Atmos. Solar-Terr. Phys., 103, 184-194, 2013.
101. Suzuki, S., K. Shiokawa, Y. Otsuka, S. Kawamura, and Y. Murayama,
     Evidence of gravity wave ducting in the mesopause region from airglow network observations,
     Geophys. Res. Lett., 40, 601-605, doi:10.1029/2012GL054605, 2013.
102. Nishioka, M., T. Maruyama, Y. Otsuka, T. Tsugawa, H. Ishibashi, K. Shiokawa, and M. Ishii,
     Comparison of meridional thermospheric winds observed by ionosondes and Fabry-Perot iterferometers (in Japanese),
     Antarctic Record, 57(No.3), 357-368, 2013.
103. Lynn, K. J. W., Y. Otsuka, K. Shiokawa,
     Ionogram-based range-time displays for observing relationships between ionosonde satellite traces, spread F and drifting optical plasma depletions,
     J. Atmos. Solar-Terr. Phys., 98, 105-112, doi:10.1016/j.jastp.2013.03.020, 2013.
104. Nishimura, Y., L. R. Lyons, K. Shiokawa, V. Angelopoulos, E. F. Donovan, and S. B. Mende,
     Substorm onset and expansion phase intensification precursors seen in polar cap patches and arcs,
     J. Geophys. Res., 118, doi:10.1029/2012JA018581, 2013.
105. Suzuki, S., S. L. Vadas, K. Shiokawa, Y. Otsuka, S. Kawamura, and Y. Murayama,
     Typhoon-induced concentric airglow structures in the mesopause region,
     Geophys. Res. Lett., 40, 5983-5987, doi: 10.1002/2013GL058087, 2013.
106. Hosokawa, K., S. Taguchi, K. Shiokawa, Y. Otsuka, Y. Ogawa, and M. Nicolls,
     Global imaging of polar cap patches with dual airglow imagers,
     Geophys. Res. Lett., 41, doi.10.1002/2013GL058748, 2014.
107. Oyama, S., Y. Miyoshi, K. Shiokawa, J. Kurihara, T. T. Tsuda, and B. J. Watkins,
     Height-dependent ionospheric variations in the vicinity of nightside poleward expanding aurora after substorm onset,
     J. Geophys. Res., 119, doi: 10.1002/2013JA019704, 2014.
108. Nishimura, Y., L. R. Lyons, Y. Zou, K. Oksavik, J. I. Moen, L. B. Clausen, E. F. Donovan, V. Angelopoulos, K. Shiokawa, J. M. Ruohoniemi, N. Nishitani, K. A. McWilliams, and M. Lester,
     Day-night coupling by a localized flow channel visualized by polar cap patch propagation,
     Goephys. Res. Lett, 41, doi: 10.1029/2014GL060301, 2014.
109. Matsuda, T., T. Nakamura, M. K. Ejiri, M. Tsutsumi, and K. Shikawa,
     New statistical analysis of the horizontal phase velocity distribution of gravity waves observed by airglow imaging,
     J. Geophys. Res., 119, 9707-9718, doi: 10.1029/2014JD021543, 2014.
110. Reisin, E.R., J. Scheer, M.E.Dyrland, F.Sigernes, C.S.Deehr, C.Schmidt, K. Hoppner, M.Bittner, P.P.Ammosov, G.A.Gavrilyeva, J.Stegman, V.I.Perminov, A.I.Semenov, P.Knieling, R.Koppmann, K.Shiokawa, R.P.Lowe, M.J. Lopez-Gonzalez, E.Rodriguez, Y.Zhao, M.J.Taylor, R.A.Buriti, P.J.Espy, W.J.R.French, K.-U.Eichmann, J.P.Burrows, and C.vonSavigny,
     Traveling planetary wave activity from mesopause region airglow temperatures determined by the Network for the Detection of Mesospheric Change (NDMC),
     J. Atmos. Solar-Terr. Phys. 119, 71-82, 2014.
111. V. Lakshmi Narayanan, K. Shiokawa, Y. Otsuka, and S. Saito,
     Airglow observations of nighttime medium-scale traveling ionospheric disturbances from Yonaguni: Statistical characteristics and low latitude limit,
     J. Geophys. Res., 119, doi: 10.1029/2014JA020368, 2014.
112. Shiokawa, K., Y. Otsuka, K. J. Lynn, P. Wilkinson and T. Tsugawa,
     Airglow-imaging observation of plasma bubble disappearance at geomagnetically conjugate points,
     Earth Planets Space, 67:43, dio:10.1186/s40623-015-0202-6, 2015.
113. Fukushima, D., K. Shiokawa, Y. Otsuka, M. Nishioka, M. Kubota, T. Tsugawa, T. Nagatsuma, S. Komonjinda, and C. Y. Yatini,
     Geomagnetically conjugate observation of plasma bubbles and thermospheric neutral winds at low latitudes,
     J. Geophys. Res., 120, doi: 10.1002/2014JA020398, 2015.
114. Hashimoto A., K. Shiokawa, Y. Otsuka, S.-I. Oyama, S. Nozawa, T. Hori, M. Lester, and M. Johnsen,
     Statistical study of auroral fragmentation into patches,
     J. Geophys. Res., 120, doi:10.1029/2015JA021000, 2015.
115. Thomas, E.G., K. Hosokawa, J. Sakai, J. B. H. Baker, J. M. Ruohoniemi, S. Taguchi, K. Shiokawa, Y. Otsuka, A. J. Coster, J.-P. St.-Maurice, and K. A. McWilliams,
     Multi-instrument, high-resolution imaging of polar cap plasma transportation,
     Radio Science, 50, doi: 10.1002/2015RS005672, 2015.
116. Motoba, T., S. Ohtani, B. Anderson, H. Korth, D. Mitchell, L. Lanzerotti, K. Shiokawa, M. Connors, C. Kletzing, and G. Reeves,
     On the formation and origin of substorm growth phase/onset auroral arcs inferred from conjugate space-ground observations,
     J. Geophys. Res., 120, doi:10.1029/2015JA021676, 2015.
117. Perwitasari, S., T. Sakanoi, A. Yamazaki, Y. Ostuka, Y. Hozumi, Y. Akiya, A. Saitou, K. Shiokawa, and S. Kawamura,
     Coordinated airglow observations between IMAP/VISI and a ground-based all-sky imager on concentric gravity wave in the mesopause,
     J. Geophys. Res., 120, 9706?9721, doi:10.1002/2015JA021424, 2015.
118. Perry, G., H. Dahlgren, M. Nicolls, M. Zettergren, J.-P. St-Maurice, J. Semeter, T. Sundberg, K. Hosokawa, K. Shiokawa, and S. Chen,
     Spatiotemporally resolved electrodynamic properties of a sun-aligned arc over Resolute Bay,
     J. Geophys. Res., 120, 9977?9987, doi:10.1002/2015JA021790, 2015.
119. Sakaguchi, K., K. Shiokawa, Y. Miyoshi, and M. Connors,
     Isolated proton auroras and Pc1/EMIC waves at subauroral latitudes, in Auroral Dynamics and Space Weather, Geophysical Monograph 215, Edited by Yongliang Zhang and Larry J. Paxton,
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120. Lin, F. F., C. Y. Wang, C. L. Su, K. Shiokawa, S. Saito, and Y. H. Chu,
     Coordinated observations of F region 3-m field-aligned plasma irregularities associated with medium-scale travelling ionospheric disturbances,
     J. Geophys. Res., 121, doi: 10.1002/2016JA022511, 2016.
121. Oyama, S.-I., K. Shiokawa, Y. Miyoshi, K. Hosokawa, B. J. Watkins, J. Kurihara, T. T. Tsuda, and C. T. Fallen,
     Lower-thermospheric wind variations in auroral patches during the substorm recovery phase,
     J. Geophys. Res., 121, doi: 10.1002/2015JA022129, 2016.
122. Nishino M. N., K. Shiokawa, and Y. Otsuka,
     The first long-term all-sky imager observation of lunar sodium tail,
     Icarus, 280, 199-204, 2016.
123. Zou, Y., Y. Nishimura; J. K. Burchill, D. J. Knudsen, L. R. Lyons, K. Shiokawa, S. Buchert, S. Chen, M. J. Nicolls, J. M. Ruohoniemi; K. A. McWilliams, and N. Nishitani,
     Localized Field-aligned Currents in the Polar Cap Associated with Airglow Patches,
     J. Geophys. Res., 121, doi: 10.1002/2016JA022665, 2016.
124. Shiokawa, K., Y. Kato, Y. Hamaguchi, Y. Yamamoto, T. Adachi, M. Ozaki, S.-I. Oyama, M. Nose, T. Nagatsuma, Y. Tanaka, Y. Otsuka, Y. Miyoshi, R. Kataoka, Y. Takagi, Y. Takeshita, A. Shinbori, S. Kurita, T. Hori, N. Nishitani, I. Shinohara, F. Tuchiya, Y. Obana, S. Suzuki, N. Takahashi, K. Seki, A. Kadokura, K. Hosokawa, Y. Ogawa, M. Connors, J. M. Ruohoniemi, M. Engebretson, E. Turunen, T. Ulich, J. Manninen, T. Raita, A. Kero, A. Oksanen, M. Back, K. Kauristie, J. Mattanen, D. Baishev, V. Kurkin, A. Oinats, A. Pashinin, R. Vasilyev, R. Rakhmatulin, W. Bristow, and M. Karjala,
     Ground-based instruments of the PWING project to investigate dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground coordinated observation network,
     Earth, Planets and Space, 69:160, doi: 10.1186/s40623-017-0745-9, 2017.
125. Zou, Y., Y. Nishimura, L. R. Lyons, and K. Shiokawa,
     Localized Polar Cap Precipitation in Association with Non-storm Time Airglow Patches,
     Geophys. Res. Lett., 44, doi: 10.1002/2016GL071168, 2017.
126. Nakamura, Y., K. Shiokawa, Y. Otsuka, S.-I. Oyama, S. Nozawa. T. Komolmis, S. Komonjida, D. Neudegg, C. Yuile, J. Meriwether, H. Shinagawa, and H. Jin,
     Measurement of thermospheric temperatures using OMTI Fabry-Perot interferometers with 70mm etalon,
     Earth, Planets and Space, 69:57, doi: 10.1186/s40623-017-0643-1, 2017.
127. Dao, T., Y. Otsuka, K. Shiokawa, M. Nishioka, M. Yamamoto, S. M. Buhari, M. Abdullah, and A. Husin,
     Coordinated observations of post-midnight irregularities and thermospheric neutral winds and temperatures at low latitudes,
     J. Geophys. Res., 122, doi: 10.1002/2017JA024048, 2017.
128. Takeo, D., K. Shiokawa, H. Fujinami, Y. Otsuka, T. S. Matsuda, M. K. Ejiri, T. Nakamura and M. Yamamoto,
     Sixteen-year variation of horizontal phase velocity and propagation direction of mesospheric and thermospheric waves in airglow images at Shigaraki, Japan,
     J. Geophys. Res., 122, doi: 10.1002/2017JA023919, 2017.
129. Fukushima, D., K. Shiokawa, Y. Otsuka, M. Kubota, T. Yokoyama, M. Nishioka, S. Komonjinda, and C. Yatini,
     Geomagnetically conjugate observations of ionospheric and thermospheric variations accompanied by a midnight brightness wave at low latitudes,
     Earth Planets Space, 69:112, doi:10.1186/s40623-017-0698-z, 2017.
130. Okoh, D., B. Rabiu, K. Shiokawa, Y. Otsuka, B. Segun, E. Falayi, S. Onwuneme, and R. Kaka,
     First study on the occurrence frequency of equatorial plasma bubbles over West Africa using an all-sky airglow imager and GNSS receivers,
     J. Geophys. Res., 122, doi: 10.1002/2017JA024602, 2017.
131. Y. Miyoshi, Y. Kasaba, I. Shinohara, T. Takashima, K. Asamura, H. Matsumoto, N. Higashio, T. Mitani, S. Kasahara, S. Yokota, S. Wang, Y. Kazama, Y. Kasahara, S. Yagitani, A. Matsuoka, H. Kojima, Y. Katoh, K. Shiokawa, K. Seki, M. Fujimoto, T. Ono, and ERG project group, Geospace exploration project: Arase (ERG),
     IOP Conf. Series: J, Phys,: Conf. Series 869,012095, doi:10.1088/1742-6596/869/1/012095, 2017.
132. Shiokawa, K., M. Ozaki, A. Kadokura, Y. Endo, T. Sakanoi, S. Kurita, Y. Miyoshi, S.-I. Oyama, M. Connors, I. Schofield, J. Michael Ruohoniemi, M. No?e, T. Nagatsuma, K. Sakaguchi, D. G. Baishev, A. Pashinin, R. Rakhmatulin, B. Shevtsov, I. Poddelsky, M. Engebretson, Tero Raita, Y.-M. Tanaka, M. Shinohara, M. Teramoto, R. Nomura, A. Fujimoto, A. Matsuoka, N. Higashio, T. Takashima , I. Shinohara, and Jay M. Albert,
     Purple auroral rays and global Pc1 pulsations observed at the CIR-associated solar wind density enhancement on March 21, 2017,
     Geophys. Res. Lett., 45, doi:10.1029/2018GL079103, 2018.
133. Ozaki, M., K. Shiokawa, Y. Miyoshi, R. Kataoka, M. Connors, T. Inoue, S. Yagitani, Y. Ebihara, C.-W Jun, R. Nomura, K. Sakaguchi, Y. Otsuka, H.A. Uchida, I. Schofield, and D.W. Danskin,
     Discovery of 1-Hz range modulation of isolated proton aurora at subauroral latitudes,
     Geophys. Res. Lett., 45, doi:10.1002/2017GL076486, 2018.
134. Figueiredo, C. A. O. B., H. Takahashi, C. M. Wrasse, Y. Otsuka, K. Shiokawa, and D. Barros,
     Medium scale traveling ionospheric disturbances observed by detrended total electron content maps over Brazil,
     J. Geophys. Res., 123, doi: 10.1002/2017JA025021, 2018.
135. Takahashi H., C. M. Wrasse, C. A. O. B. Figueiredo, D. Barros, M. A. Abdu, Y. Otsuka, and K. Shiokawa,
     Equatorial Plasma Bubble Seeding by MSTIDs in the Ionosphere,
     Progress in Earth and Planetary Science, 5:32, doi:10.1186/s40645-018-0189-2, 2018.
136. Narayanan, V. L., K. Shiokawa, Y. Otsuka, and D. Neudegg,
     On the role of thermospheric winds and sporadic E layers in the formation and evolution of Electrified Medium-Scale Traveling Ionospheric Disturbances (EMSTIDs) in geomagnetic conjugate regions,
     J. Geophys. Res., 123, doi: 10.1029/2018JA025261, 2018.
137. Tsuchiya, S., K. Shiokawa, H. Fujinami, Y. Otsuka, T. Nakamura, and M. Yamamoto,
     Statistical analysis of the phase velocity distribution of mesospheric and ionospheric waves observed in airglow images over a 16-year period: comparison between Rikubetsu and Shigaraki, Japan,
     J. Geophys. Res., 123, doi:10.1029/2018JA025585, 2018.
138. Figueiredo C. A. O. B., H. Takahashi, C. M. Wrasse, Y. Otsuka, K. Shiokawa and D. Barros,
     Investigation of nighttime MSTIDs observed by optical thermosphere imagers at low latitutdes: Morphology, propagation direction, and wind filtering,
     J. Geophys. Res., 123, doi: 10.1029/2018JA025438, 2018.
139. Takagi, Y., K. Shiokawa, Y. Otsuka, M. Connors, and I. Schofield,
     Statistical analysis of SAR arc detachment from the main oval based on 11-year, all-sky imaging observation at Athabasca, Canada,
     Geophys. Res. Lett., 45, doi:10.1029/2018GL079615, 2018.
140. Tsuchiya, F., A. Hirai, T. Obara, H. Misawa, S. Kurita, Y. Miyoshi, K. Shiokawa, M. Connors, M. Ozaki, Y. Kasahara, A. Kumamoto, Y. Kasaba, A. Matsuoka, M. Shoji, and I. Shinohara,
     Energetic electron precipitation associated with pulsating aurora observed by VLF radio propagation during the recovery phase of a substorm on 27 March 2017,
     Geophys. Res. Lett., 45, doi:10.1029/2018GL080222, 2018.
141. Perwitasari, S., T. Nakamura, M. Kogure, Y. Tomikawa, M. K. Ejiri, and K. Shiokawa,
     Comparison of gravity wave propagation direction observed by mesospheric airglow imaging at three different latitudes by using M-transform,
     Ann. Geophys., 36, 1597?1605, 2018.
142. Hirai A., F. Tsuchiya, T. Obara, Y. Kasaba, Y. Katoh, H. Misawa, K. Shiokawa, Y. Miyoshi, S. Kurita, S. Matsuda, M. Connors, T. Nagatsuma, K. Sakaguchi, Y. Kasahara, A. Kumamoto, A. Matsuoka, M. Shoji, I. Shinohara and J. M. Albert,
     Temporal and Spatial Correspondence of Pc1/EMIC Waves and Relativistic Electron Precipitations Observed with Ground-Based Multi-Instruments on 27 March 2017,
     Geophys. Res. Lett., 45, doi:10.1029/2018GL080126, 2018.
143. Kurita, S., Y. Miyoshi, K. Shiokawa, N. Higashio, T. Mitani, T. Takashima, A. Matsuoka, I. Shinohara, C. A. Kletzing , J. B. Blake, S. G. Claudepierre, M. Connors, S. Oyama, T. Nagatsuma, K. Sakaguchi, D. Baishev and Y. Otsuka,
     Rapid loss of relativistic electrons by EMIC waves in the outer radiation belt observed by Arase, Van Allen Probes, and the PWING ground stations,
     Geophys. Res. Lett., 45, doi:10.1029/2018GL080262, 2018.
144. 塩川和夫、鈴木臣、
     夜間大気光の不思議、
     幻冬舎、2018年3月。
145. Shiokawa, K., Y. Otsuka, and M. Connors,
     Statistical study of auroral/resonant-scattering 427.8-nm emission observed at subauroral latitudes over 14 years,
     J. Geophys. Res., 124, doi: 10.1029/2019JA026704, 2019.
146. Moral A. C., K. Shiokawa, S. Suzuki, H. Liu, Y. Otsuka, and C. Y. Yatini,
     Observations of low-latitude traveling ionospheric disturbances by a 630.0-nm airglow imager and the CHAMP satellite over Indonesia,
     J. Geohphys. Res., 124, doi: 10.1029/2018JA025634, 2019.
147. Goodwin, L. V., Y. Nishimura, Y. Zou, K. Shiokawa, and P. T. Jayachandran.,
     Mesoscale Convection Structures Associated with Airglow Patches Characterized using Cluster-Imager Conjunctions,
     J. Geophys. Res., 124, doi: 10.1029/2019JA026611, 2019.
148. Xu, H. K. Shiokawa, S. Oyama, and Y. Otsuka,
     Thermospheric wind variations observed by a Fabry-Perot interferometer at Tromso, Norway, at substorm onsets,
     Earth Planets, and Space, 71:93, doi: 10.1186/s40623-019-1072-0, 2019.
149. Tsuchiya, S., K. Shiokawa. H. Fujinami, Y. Otsuka, T. Nakamura, M. Connors, I. Schofield, B. Shevtsov, and I. Poddelsky,
     Three-dimensional Fourier analysis of the phase velocity distributions of mesospheric and ionospheric waves based on airglow images collected over 10 years: Comparison of Magadan, Russia, and Athabasca, Canada,
     J. Geophys. Res., 124, doi: 10.1029/2019JA026783, 2019.
150. Zhou, S., K. Shiokawa; I. Poddelsky; and Y. Chen,
     Probing afternoon detached aurora and high-latitude trough based on DMSP observations,
     Adv. Space Res., 65, 214-220, doi: 10.1016/j.asr.2019.10.003, 2019.
151. Xu H., K. Shiokawa, S. Oyama, and S. Nozawa,
     High-latitude thermospheric wind study using a Fabry-Perot interferometer at Tromsoe in Norway: averages and variations during quiet times,
     Earth Planets Space, 71:110, 10.1186/s40623-019-1093-8, 2019.
152. Tsuchiya S., K. Shiokawa, Y. Otsuka, T. Nakamura, M. Yamamoto, M. Connors, I. Schofield, B. Schevtsov, and I. Poddelskiy,
     Wavenumber spectra of atmospheric gravity waves and medium-scale traveling ionospheric disturbances based on more than 10-year airglow images in Japan, Russia, and Canada,
     J. Geophys. Res., 125, doi: 10.1029/2019JA026807, 2020.
153. Yadav S., K. Shiokawa, S. Oyama, and Y. Otsuka,
     Multi-event analysis of oscillatory motion of medium-scale traveling ionospheric disturbances observed by a 630-nm airglow imager over Tromsoe,
     Geophys. Res. Lett., 47, doi:10.1029/2019JA027598, 2020.
154. Sarudin I., N. S. A. Hamid, M. Abdullah, S. M. Buhari, K. Shiokawa, Y. Otsuka, and C. Y. Yatini,
     Equatorial plasma bubble zonal drift velocity variations in response to season, local time, and solar activity across Southeast Asia,
     J. Geophys. Res., 125, doi: 10.1029/2019JA027521, 2020.