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Shiokawa, K., T. Kadota, Y. Otsuka, T. Ogawa, T. Nakamura, and S. Fukao, A twochannel Fabry-Perot interferometer with thermoelectric-cooled CCD detectors forneutral wind measurement in the upper atmosphere, Earth Planets Space, 55, 271-275,
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Otsuka, Y., T. Kadota, K. Shiokawa, T. Ogawa, S. Kawamura, S. Fukao, and S.-R. Zhang,
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Ejiri, M. K., K. Shiokawa, T. Ogawa, K. Igarashi, T. Nakamura, and T. Tsuda, Statistical
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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.
Shiokawa, K., Y. Otsuka, T. Ogawa, and P. Wilkinson, Time evolution of high-altitude
plasma bubbles imaged at geomagnetic conjugate points, Ann. Geophys., 22, 31373143, 2004.
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 heightvariations, J. Atmos. Solar-Terr. Phys., 66, 573-583, 2004.
Takahashi, H., T. Nakamura, K. Shiokawa, T. Tsuda, L. M. Lima, and D. Gobbi,
Atmospheric density and pressure inferred from the meteor diffusion coefficient andairglow O2b temperature in the MLT region, Earth Planets Space, 56, 249-258, 2004.
Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, and P. J. Wilkinson, Statisticalcharacteristics of gravity waves observed by an all-sky imager at Darwin, Australia, J.
Geophys. Res., 109, D20S07, doi:10.1029/2003JD004336, 2004.
Otsuka, Y., K. Shiokawa, T. Ogawa, and P. Wilkinson, Geomagnetic conjugate
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all-sky airglow imagers, Geophys. Res. Lett., L15803, doi:10.1029/2004GL020262, 2004.
Otsuka, Y., K. Shiokawa, T. Ogawa, T. Yokoyama, M. Yamamoto, and S. Fukao, Spatial
relationship of equatorial plasma bubbles and field-aligned irregularities observed withan all-sky airglow imager and the Equatorial Atmosphere Radar, Geophys. Res. Lett.,
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Nakazawa, Y., T. Okada, and K. Shiokawa, Understanding the "SEKKI" phenomena inJapanese historical literatures based on the modern science of low-latitude aurora,
Earth Planets Space, Vol. 56 (No. 12), pp. e41-e44, 2004.
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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
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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
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Ogawa, T., E. Sagawa, Y. Otsuka, K. Shiokawa, T. J. Immel, S. B. Mende, and P.
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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.
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.
Ogawa, T., Y. Otsuka, F. Onoma, K. Shiokawa, and M. Yamamoto, The first coordinatedobservations of mid-latitude E-region quasi-periodic radar echoes and lower
thermospheric 557.7-nm airglow, Ann. Geophys., 23, 2391-2399, 2005.
Nakata, H., I. Nagashima, K. Sakata, Y. Otsuka, Y. Akaike, T. Takano, S. Shimakura, K.
Shiokawa, and T. Ogawa (2005), Observations of equatorial plasma bubbles using
broadcast VHF radio waves, Geophys. Res. Lett., 32, L17110,
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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 stormsof October 2003 on the equatorial and low-latitude F region in two longitudinal sectors,
J. Geophys. Res., 110, A12S91, doi:10.1029/2004JA010999, 2005.
Shiokawa, K., Y. Otsuka, and T. Ogawa, Quasiperiodic southward moving waves in 630nm airglow images in the equatorial thermosphere, J. Geophys. Res., 111, A06301,
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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.
Ogawa, T., Y. Otsuka, K. Shiokawa, A. Saito, and M. Nishioka, Ionospheric disturbances
over Indonesia and their possible association with atmospheric gravity waves from thetroposphere, J. Meteor. Soc. Japan, Vol. 84A, pp. 327-342, 2006.
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 fastpropagating, large-scale atmospheric gravity wave observed in the WAVE2004
campaign, J. Geophys. Res., 111, D21110, doi:10.1029/2005JD006788, 2006.
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.
Takahashi, H., C. M. Wrasse, D. Pancheva, M. A. Abdu, I. S. Batista, L. M. Lima, , P. P.
Batista, B. R. Clemesha, K. Shiokawa, Signatures of 3-6 day planetary waves in theequatorial mesosphere and ionosphere, Ann. Geophys., 24, 3343-3350,, 2006.
Shiokawa, K., S. Suzuki, Y. Otsuka, T. Ogawa, T. Nakamura, and T. Horinouchi, An
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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 ionosphericdisturbance, J. Geophys. Res., 112, A05308, doi:10.1029/2006JA011772, 2007.
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.

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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
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.
Otsuka, Y., F. Onoma, K. Shiokawa, T. Ogawa, M. Yamamoto, and S. Fukao,
Simultaneous observations of nighttime medium-scale traveling ionosphericdisturbances and E region field-aligned irregularities at midlatitude, J. Geophys. Res.,
112, A06317, doi:10.1029/2005JA011548, 2007.
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.
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 travelingionospheric disturbances at mid-latitudes during geomagnetic storms, AGU monographon Mid-Latitude Ionospheric Dynamics and Disturbances, 271-281, 2008.
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 anairglow imager, J. Geophys. Res., 113, A12312, doi:10.1029/2008JA013417, 2008.
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.
Suzuki H., K. Shiokawa, M. Tsutsumi, T. Nakamura and M. Taguchi, Atmospheric gravity
waves identified by ground-based observations of the intensity and rotationaltemperature of OH airglow, Polar Science, 2, 1-8, 2008.
Miyoshi, Y., K. Sakaguchi, K. Shiokawa, D. Evans, J. Albert, M. Connors, and V.
Jordanova, Precipitation of radiation belt electrons by EMIC waves, observed fromground and space, Geophys. Res. Lett., 35, doi:10.1029/2008GL035727, 2008.
Shiokawa, K., K. Hosokawa, K. Sakaguchi, A. Ieda, Y. Otsuka, T. Ogawa and M. Connors,
The Optical Mesosphere Thermosphere Imagers (OMTIs) for network measurements ofaurora 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.212215, doi:10.1063/1.3169292, 2009.
Shiokawa, K., Y. Otsuka, and T. Ogawa, Propagation characteristics of nighttime
mesospheric and thermospheric waves observed by optical mesosphere thermosphereimagers at middle and low latitudes, Earth Planets Space, 61, 479-491, 2009.
Suzuki, S., K. Shiokawa, K. Hosokawa, K. Nakamura, and W. K. Hocking, Statisticalcharacteristics 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.
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.
Otsuka, Y., K. Shiokawa, T. Ogawa, T. Yokoyama, and M. Yamamoto, Spatial relationshipof nighttime medium-scale traveling ionospheric disturbances and F-region fieldaligned irregularities observed with two spaced all-sky airglow imagers and the MU
radar, J. Geophys. Res., 114, A05302, doi:10.1029/2008JA013902, 2009.
Ogawa, T., N. Nishitani, Y. Otsuka, K. Shiokawa, T. Tsugawa, and K. Hosokawa, Mediumscale 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.
Hosokawa, K., T. Kashimoto, S. Suzuki, K. Shiokawa, Y. Otsuka and T. Ogawa, Motion ofpolar cap patches: A statistical study with all-sky airglow imager at Resolute Bay,
Canada, J. Geophys. Res., 114, A04318, doi:10.1029/2008JA014020, 2009.
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.

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Suzuki, S., K. Shiokawa, Y. Otsuka, T. Ogawa, T. Nakamura, and A.Z. Liu,
Characteristics of equatorial gravity waves derived from mesospheric airglow imagningobservations, Ann. Geophys., 27, 1625-1629, 2009.
Saroso, S., K. Hattori, H. Ishikawa, Y. Ida, R. Shirogane, M. Hayakawa, K. Yumoto, K.
Shiokawa, and M. Nishihashi, ULF geomagnetic anomalous changes possibly associatedwith 2004-2005 Sumatra earthquakes, Phys. Chem. Earth, 34, 343-349, 2009.
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.,
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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 ionosphereevening uplifting, Earth Planets Space, 61, 455-462, 2009.
Ogawa, T., Y. Miyoshi, Y. Otsuka, T. Nakamura, and K. Shiokawa, Equatorial GPS
ionospheric scintillations over Kototabang, Indonesia and their relation to atmosphericwaves from below, Earth Planets Space, 61(4), 397-410, 2009.
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 mediumscale traveling ionospheric disturbances in 630-nm airglow and HF radar echoes at
midlatitudes, J. Geophys. Res., 114, A07312, doi:10.1029/2008JA013963, 2009.
Koustov, A., N. Nishitani, K. Shiokawa, S. Suzuki, and B.M. Shevtsov, Joint observationsof a traveling ionospheric disturbance with the Paratunka OMTI camera and the
Hokkaido HF radar, Ann. Geophys., 27, 2399-2406, 2009.
Hosokawa, K., J. P. St-Maurice, G. J. Sofko, K. Shiokawa, Y. Otsuka, T. Ogawa,
Reorganization of polar cap patches through shears in the background plasma
convection, J. Geophys. Res., 115, A01303, doi:10.1029/2009JA014599, 2010.
Suzuki, S., T. Nakamura , M. K. Ejiri, M. Tsutsumi, K. Shiokawa, T. Kawahara,
Simultaneous airglow, lidar, and radar measurements of mesospheric gravity waves
over Japan, J. Geophys. Res., 115, D24113, doi:10.1029/2010JD014674, 2010.
Oyama, S., K. Shiokawa, J. Kurihara, T. T. Tsuda, S. Nozawa, Y. Ogawa, Y. Otsuka, andB. J. Watkins, Lower-thermospheric wind fluctuations measured with an FPI in
pulsating aurora at Tromsoe, Norway, Ann. Geophys., 28, 1847-1857, 2010.
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.
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, Trans. of the Japan Society for Aeronautical andSpace Sci., Arerospace Technology, Japan, vol.8, No.ISTS27 (ISTS Special Issue:
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Hosokawa, K., J. I. Moen, K. Shiokawa, and Y. Otsuka, Motion of polar cap arcs, J.
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Adachi, T., Y. Otsuka, M. Yamaoka, M. Yamamoto, K. Shiokawa, A. B. Chen, and R. Hsu,
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Hosokawa, K., J. Moen, K. Shiokawa, and Y. Otsuka, Decay of polar cap patch, J.
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Takahashi, H., A. Onohara, K. Shiokawa, F. Vargas, and D. Gobbi, Atmospheric wave
induced O2 and OH airglow intensity variations: effect of vertical wavelength anddamping, Ann. Geophys., 29, 1-7, 2011.
Lynn, K. J. W., Y. Otsuka, and K. Shiokawa, Simultaneous observations at Darwin ofequatorial bubbles by ionosonde-based range/time displays and airglow imaging,
Geophys. Res. Lett., doi:10.1029/2011GL049856, 38, L23101, 2011.
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.
Shiokawa, K., M. Mori, Y. Otsuka, S. Oyama, and S. Nozawa, Motion of high-latitudenighttime medium-scale traveling ionospheric disturbances associated with auroralbrightening, J. Geophys. Res., 117, A10316, doi:10.1029/2012JA017928, 2012.

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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.
Dahlgren, H., J. L. Semeter, K. Hosokawa, M. J. Nicolls, T. W. Butler, M. G. Johnsen, andK. 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.
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.
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.
Fukushima, D., K. Shiokawa, Y. Otsuka, and T. Ogawa (2012), 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.
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.
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.
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, 184194, 2013.
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.
Nishioka, M., T. Maruyama, Y. Otsuka, T. Tsugawa, H. Ishibashi, K. Shiokawa, and M.
Ishii, Comparison of meridional thermospheric winds observed by ionosondes andFabry-Perot iterferometers (in Japanese), Antarctic Record, 57(No.3), 357-368, 2013.
Lynn, K. J. W., Y. Otsuka, K. Shiokawa, Ionogram-based range-time displays forobserving 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.
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.
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.
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.
Oyama, S., Y. Miyoshi, K. Shiokawa, J. Kurihara, T. T. Tsuda, and B. J. Watkins, Heightdependent ionospheric variations in the vicinity of nightside poleward expanding aurora
after substorm onset, J. Geophys. Res., 119, doi: 10.1002/2013JA019704, 2014.
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.
Matsuda, T., T. Nakamura, M. K. Ejiri, M. Tsutsumi, and K. Shikawa, New statisticalanalysis of the horizontal phase velocity distribution of gravity waves observed byairglow imaging, J. Geophys. Res., 119, 9707-9718, doi: 10.1029/2014JD021543, 2014.
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,
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.

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V. Lakshmi Narayanan, K. Shiokawa, Y. Otsuka, S. Saito, Airglow observations ofnighttime medium-scale traveling ionospheric disturbances from Yonaguni: Statisticalcharacteristics and low latitude limit, J. Geophys. Res., 119, doi:
10.1029/2014JA020368, 2014.
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.
Fukushima, D., K. Shiokawa, Y. Otsuka, M. Nishioka, M. Kubota, T. Tsugawa, T.
Nagatsuma, S. Komonjinda, and C. Y. Yatini, Geomagnetically conjugate observation ofplasma bubbles and thermospheric neutral winds at low latitudes, J. Geophys. Res.,
120, doi: 10.1002/2014JA020398, 2015.
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.
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, K. A. McWilliams, Multiinstrument, high-resolution imaging of polar cap plasma transportation, Radio Science,
50, doi: 10.1002/2015RS005672, 2015.
Motoba, T., S. Ohtani , B. Anderson , H. Korth , D. Mitchell , L. Lanzerotti , K. Shiokawa, M. Connors , C. Kletzing , G. Reeves , On the formation and origin of substorm growthphase/onset auroral arcs inferred from conjugate space-ground observations, J.
Geophys. Res., 120, doi:10.1029/2015JA021676, 2015.
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 anda ground-based all-sky imager on concentric gravity wave in the mesopause, J.
Geophys. Res., 120, 9706–9721, doi:10.1002/2015JA021424, 2015.
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.
Sakaguchi, K., K. Shiokawa, Y. Miyoshi, and M. Connors, Isolated proton auroras andPc1/EMIC waves at subauroral latitudes, in Auroral Dynamics and Space Weather,
Geophysical Monograph 215, Edited by Yongliang Zhang and Larry J. Paxton, American
Geophysical Union. Published by John Wiley & Sons, Inc., doi:
10.1002/9781118978719.ch5, 2016.
Lin, F. F., C. Y. Wang, C. L. Su, K. Shiokawa, S. Saito, and Y. H. Chu, Coordinatedobservations of F region 3-m field-aligned plasma irregularities associated withmedium-scale travelling ionospheric disturbances, J. Geophys. Res., 121, doi:
10.1002/2016JA022511, 2016.
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
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.
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.
Shiokawa, K., Y. Kato, Y. Hamaguchi, Y. Yamamoto, T. Adachi, M. Ozaki, S.-I. Oyama, M.
Nosé, 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 magnetosphereat 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.
Zou, Y., Y. Nishimura, L. R. Lyons, K. Shiokawa, Localized Polar Cap Precipitation in
Association with Non-storm Time Airglow Patches, Geophys. Res. Lett., 44, doi:
10.1002/2016GL071168, 2017.
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, Measurementof thermospheric temperatures using OMTI Fabry-Perot interferometers with 70mm
etalon, Earth, Planets and Space, 69:57, doi: 10.1186/s40623-017-0643-1, 2017.

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Dao, T., Y. Otsuka, K. Shiokawa, M. Nishioka, M. Yamamoto, S. M. Buhari, M. Abdullah,and A. Husin, Coordinated observations of post-midnight irregularities andthermospheric neutral winds and temperatures at low latitudes, J. Geophys. Res., 122,
doi: 10.1002/2017JA024048, 2017.
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.
Fukushima, D., K. Shiokawa, Y. Otsuka, M. Kubota, T. Yokoyama, M. Nishioka, S.
Komonjinda, and C. Yatini, Geomagnetically conjugate observations of ionospheric andthermospheric variations accompanied by a midnight brightness wave at low latitudes,
Earth Planets Space, 69:112, doi:10.1186/s40623-017-0698-z, 2017.
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:
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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 projectgroup (2017), Geospace exploration project: Arase (ERG), IOP Conf. Series: J, Phys,:Conf. Series 869,012095, doi:10.1088/1742-6596/869/1/012095
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. Nośe, 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.
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, andD.W. Danskin, Discovery of 1-Hz range modulation of isolated proton aurora at
subauroral latitudes, Geophys. Res. Lett., 45, doi:10.1002/2017GL076486, 2018.
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.
Takahashi H., C. M. Wrasse, C. A. O. B. Figueiredo, D. Barros, M. A. Abdu, Y. Otsuka, K.
Shiokawa, Equatorial Plasma Bubble Seeding by MSTIDs in the Ionosphere, Progress inEarth and Planetary Science, 5:32, doi:10.1186/s40645-018-0189-2, 2018.
Narayanan, V. L., K. Shiokawa, Y. Otsuka, D. Neudegg, On the role of thermosphericwinds 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.
Tsuchiya, S., K. Shiokawa, H. Fujinami, Y. Otsuka, T. Nakamura, and M. Yamamoto,
Statistical analysis of the phase velocity distribution of mesospheric and ionosphericwaves observed in airglow images over a 16-year period: comparison between
Rikubetsu and Shigaraki, Japan, J. Geophys. Res., 123, doi:10.1029/2018JA025585,
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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.
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.
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, 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.
Perwitasari, S., T. Nakamura, M. Kogure, Y. Tomikawa, M. K. Ejiri, K. Shiokawa,Comparison of gravity wave propagation direction observed by mesosphericairglow imaging at three different latitudes by using M-transform, Ann. Geophys., 36,
1597–1605, 2018.

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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 Observedwith Ground-Based Multi-Instruments on 27 March 2017, Geophys. Res. Lett., 45,
doi:10.1029/2018GL080126, 2018.
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.
塩川和夫、鈴木臣、夜間大気光の不思議、幻冬舎、2018年3月。(public book)
Shiokawa, K., Y. Otsuka, and M. Connors, Statistical study of auroral/resonantscattering 427.8-nm emission observed at subauroral latitudes over 14 years, J.
Geophys. Res., 124, doi: 10.1029/2019JA026704, 2019.
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 theCHAMP satellite over Indonesia, J. Geohphys. Res., 124, doi: 10.1029/2018JA025634,
2019.
Goodwin, L. V., Y. Nishimura, Y. Zou, K. Shiokawa, and P. T. Jayachandran., Mesoscale
Convection Structures Associated with Airglow Patches Characterized using ClusterImager Conjunctions, J. Geophys. Res., 124, doi: 10.1029/2019JA026611, 2019.
Xu, H. K. Shiokawa, S. Oyama, and Y. Otsuka, Thermospheric wind variations observed
by a Fabry-Perot interferometer at Tromsø, Norway, at substorm onsets, Earth
Planets, and Space, 71:93, https://doi.org/10.1186/s40623-019-1072-0, 2019.
Tsuchiya, S., K. Shiokawa. H. Fujinami, Y. Otsuka, T. Nakamura, M. Connors, I.
Schofield, B. Shevtsov, and I. Poddelsky, Three-dimensional Fourier analysis of thephase 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.
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.
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.
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 10year airglow images in Japan, Russia, and Canada, J. Geophys. Res., 125, doi:
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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,
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Sarudin I., N. S. A. Hamid, M. Abdullah, S. M. Buhari, K. Shiokawa, Y. Otsuka, and C. Y.
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