A new technique for mapping of total electron content using GPS network in Japan Y Otsuka, T Ogawa, A Saito, T Tsugawa, S Fukao, S Miyazaki Earth, planets and space 54 (1), 63-70, 2002 | 359 | 2002 |
Ionospheric disturbances detected by GPS total electron content observation after the 2011 off the Pacific coast of Tohoku Earthquake T Tsugawa, A Saito, Y Otsuka, M Nishioka, T Maruyama, H Kato, ... Earth, planets and space 63, 875-879, 2011 | 301 | 2011 |
Statistical study of nighttime medium‐scale traveling ionospheric disturbances using midlatitude airglow images K Shiokawa, C Ihara, Y Otsuka, T Ogawa Journal of Geophysical Research: Space Physics 108 (A1), 2003 | 287 | 2003 |
Medium‐scale traveling ionospheric disturbances detected with dense and wide TEC maps over North America T Tsugawa, Y Otsuka, AJ Coster, A Saito Geophysical Research Letters 34 (22), 2007 | 267 | 2007 |
Geomagnetic conjugate observations of medium‐scale traveling ionospheric disturbances at midlatitude using all‐sky airglow imagers Y Otsuka, K Shiokawa, T Ogawa, P Wilkinson Geophysical research letters 31 (15), 2004 | 266 | 2004 |
GPS observations of medium-scale traveling ionospheric disturbances over Europe Y Otsuka, K Suzuki, S Nakagawa, M Nishioka, K Shiokawa, T Tsugawa Annales Geophysicae 31 (2), 163-172, 2013 | 224 | 2013 |
A physical mechanism of positive ionospheric storms at low latitudes and midlatitudes N Balan, K Shiokawa, Y Otsuka, T Kikuchi, D Vijaya Lekshmi, ... Journal of Geophysical Research: Space Physics 115 (A2), 2010 | 216 | 2010 |
A statistical study of large‐scale traveling ionospheric disturbances using the GPS network in Japan T Tsugawa, A Saito, Y Otsuka Journal of Geophysical Research: Space Physics 109 (A6), 2004 | 208 | 2004 |
Statistical study of medium-scale traveling ionospheric disturbances observed with the GPS networks in Southern California N Kotake, Y Otsuka, T Ogawa, T Tsugawa, A Saito Earth, planets and space 59, 95-102, 2007 | 201 | 2007 |
Three‐dimensional simulation of the coupled Perkins and Es‐layer instabilities in the nighttime midlatitude ionosphere T Yokoyama, DL Hysell, Y Otsuka, M Yamamoto Journal of Geophysical Research: Space Physics 114 (A3), 2009 | 197 | 2009 |
Ground and satellite observations of nighttime medium‐scale traveling ionospheric disturbance at midlatitude K Shiokawa, Y Otsuka, C Ihara, T Ogawa, FJ Rich Journal of Geophysical Research: Space Physics 108 (A4), 2003 | 187 | 2003 |
Geomagnetic conjugate observations of equatorial airglow depletions Y Otsuka, K Shiokawa, T Ogawa, P Wilkinson Geophysical Research Letters 29 (15), 43-1-43-4, 2002 | 176 | 2002 |
Detection of ruptures of Andaman fault segments in the 2004 great Sumatra earthquake with coseismic ionospheric disturbances K Heki, Y Otsuka, N Choosakul, N Hemmakorn, T Komolmis, T Maruyama Journal of Geophysical Research: Solid Earth 111 (B9), 2006 | 172 | 2006 |
Climatological study of GPS total electron content variations caused by medium‐scale traveling ionospheric disturbances N Kotake, Y Otsuka, T Tsugawa, T Ogawa, A Saito Journal of Geophysical Research: Space Physics 111 (A4), 2006 | 153 | 2006 |
Vertical connection from the tropospheric activities to the ionospheric longitudinal structure simulated by a new Earth's whole atmosphere‐ionosphere coupled model H Jin, Y Miyoshi, H Fujiwara, H Shinagawa, K Terada, N Terada, M Ishii, ... Journal of Geophysical Research: Space Physics 116 (A1), 2011 | 149 | 2011 |
Propagation characteristics of nighttime mesospheric and thermospheric waves observed by optical mesosphere thermosphere imagers at middle and low latitudes K Shiokawa, Y Otsuka, T Ogawa Earth, planets and space 61, 479-491, 2009 | 147 | 2009 |
A climatology of F region gravity wave propagation over the middle and upper atmosphere radar WL Oliver, Y Otsuka, M Sato, T Takami, S Fukao Journal of Geophysical Research: Space Physics 102 (A7), 14499-14512, 1997 | 146 | 1997 |
Acoustic resonance and plasma depletion detected by GPS total electron content observation after the 2011 off the Pacific coast of Tohoku Earthquake A Saito, T Tsugawa, Y Otsuka, M Nishioka, T Iyemori, M Matsumura, ... Earth, planets and space 63, 863-867, 2011 | 140 | 2011 |
Traveling ionospheric disturbances detected in the FRONT campaign A Saito, M Nishimura, M Yamamoto, S Fukao, M Kubota, K Shiokawa, ... Geophysical research letters 28 (4), 689-692, 2001 | 136 | 2001 |
Simultaneous observations of nighttime medium‐scale traveling ionospheric disturbances and E region field‐aligned irregularities at midlatitude Y Otsuka, F Onoma, K Shiokawa, T Ogawa, M Yamamoto, S Fukao Journal of Geophysical Research: Space Physics 112 (A6), 2007 | 128 | 2007 |