| Sodium temperature/wind lidar based on laser-diode-pumped Nd: YAG lasers deployed at Tromsø, Norway (69.6 N, 19.2 E) TD Kawahara, S Nozawa, N Saito, T Kawabata, TT Tsuda, S Wada Optics Express 25 (12), A491-A501, 2017 | 50 | 2017 |
| Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars … A Shinbori, Y Otsuka, T Sori, M Nishioka, S Perwitasari, T Tsuda, ... Earth, Planets and Space 74 (1), 1-17, 2022 | 49 | 2022 |
| A thermospheric Na layer event observed up to 140 km over Syowa Station (69.0 S, 39.6 E) in Antarctica TT Tsuda, X Chu, T Nakamura, MK Ejiri, TD Kawahara, AS Yukimatu, ... Geophysical Research Letters 42 (10), 3647-3653, 2015 | 36 | 2015 |
| Variations of the neutral temperature and sodium density between 80 and 107 km above Tromsø during the winter of 2010–2011 by a new solid‐state sodium lidar S Nozawa, TD Kawahara, N Saito, CM Hall, TT Tsuda, T Kawabata, ... Journal of Geophysical Research: Space Physics 119 (1), 441-451, 2014 | 32 | 2014 |
| Fine structure of sporadic sodium layer observed with a sodium lidar at Tromsø, Norway TT Tsuda, S Nozawa, TD Kawahara, T Kawabata, N Saito, S Wada, ... Geophysical research letters 38 (18), 2011 | 27 | 2011 |
| Decrease in sodium density observed during auroral particle precipitation over Tromsø, Norway TT Tsuda, S Nozawa, TD Kawahara, T Kawabata, N Saito, S Wada, ... Geophysical research letters 40 (17), 4486-4490, 2013 | 24 | 2013 |
| Height and time characteristics of seasonal and diurnal variations in PMWE based on 1 year observations by the PANSY radar (69.0 S, 39.6 E) T Nishiyama, K Sato, T Nakamura, M Tsutsumi, T Sato, M Kohma, ... Geophysical research letters 42 (7), 2100-2108, 2015 | 23 | 2015 |
| Lower-thermospheric wind fluctuations measured with an FPI during pulsating aurora at Tromsø, Norway S Oyama, K Shiokawa, J Kurihara, TT Tsuda, S Nozawa, Y Ogawa, ... Annales Geophysicae 28 (10), 1847-1857, 2010 | 22 | 2010 |
| Temperature enhancements and vertical winds in the lower thermosphere associated with auroral heating during the DELTA campaign J Kurihara, S Oyama, S Nozawa, TT Tsuda, R Fujii, Y Ogawa, H Miyaoka, ... Journal of Geophysical Research: Space Physics 114 (A12), 2009 | 21 | 2009 |
| Acceleration mechanism of high‐speed neutral wind observed in the polar lower thermosphere TT Tsuda, S Nozawa, S Oyama, T Motoba, Y Ogawa, H Shinagawa, ... Journal of Geophysical Research: Space Physics 114 (A4), 2009 | 19 | 2009 |
| An automated auroral detection system using deep learning: real-time operation in Tromsø, Norway S Nanjo, S Nozawa, M Yamamoto, T Kawabata, MG Johnsen, TT Tsuda, ... Scientific Reports 12 (1), 8038, 2022 | 17 | 2022 |
| Rayleigh/Raman lidar observations of gravity wave activity from 15 to 70 km altitude over Syowa (69 S, 40 E), the Antarctic M Kogure, T Nakamura, MK Ejiri, T Nishiyama, Y Tomikawa, M Tsutsumi, ... Journal of Geophysical Research: Atmospheres 122 (15), 7869-7880, 2017 | 17 | 2017 |
| A sporadic sodium layer event detected with five‐directional lidar and simultaneous wind, electron density, and electric field observation at Tromsø, Norway TT Tsuda, S Nozawa, TD Kawahara, T Kawabata, N Saito, S Wada, ... Geophysical Research Letters 42 (21), 9190-9196, 2015 | 17 | 2015 |
| Field‐aligned current loop model on formation of sporadic metal layers N Matuura, T Tsuda, S Nozawa Journal of Geophysical Research: Space Physics 118 (7), 4628-4639, 2013 | 17 | 2013 |
| A new five-wavelength photometer operated in Tromsø (69.6° N, 19.2° E) S Nozawa, T Kawabata, K Hosokawa, Y Ogawa, T Tsuda, A Mizuno, ... Earth, Planets and Space 70, 1-31, 2018 | 15 | 2018 |
| Lower thermospheric wind variations in auroral patches during the substorm recovery phase S Oyama, K Shiokawa, Y Miyoshi, K Hosokawa, BJ Watkins, J Kurihara, ... Journal of Geophysical Research: Space Physics 121 (4), 3564-3577, 2016 | 15 | 2016 |
| A case study on generation mechanisms of a sporadic sodium layer above Tromsø (69.6 N) during a night of high auroral activity T Takahashi, S Nozawa, TT Tsuda, Y Ogawa, N Saito, T Hidemori, ... Annales Geophysicae 33 (8), 941-953, 2015 | 15 | 2015 |
| Mesoscale observations of Joule heating near an auroral arc and ion‐neutral collision frequency in the polar cap E region MJ Kosch, I Yiu, C Anderson, T Tsuda, Y Ogawa, S Nozawa, A Aruliah, ... Journal of Geophysical Research: Space Physics 116 (A5), 2011 | 15 | 2011 |
| The Pedersen current carried by electrons: a non-linear response of the ionosphere to magnetospheric forcing SC Buchert, T Tsuda, R Fujii, S Nozawa Annales geophysicae 26 (9), 2837-2844, 2008 | 15 | 2008 |
| Tidal waves in the polar lower thermosphere observed using the EISCAT long run data set obtained in September 2005 S Nozawa, Y Ogawa, S Oyama, H Fujiwara, T Tsuda, A Brekke, CM Hall, ... Journal of Geophysical Research: Space Physics 115 (A8), 2010 | 14 | 2010 |
