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2. Aeronomy

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  1. Content type: Full paper

    Optical auroral measurements repeatedly reveal the existence of a transitional stage between a quiescent preexisting arc and its significant auroral expansion in a substorm onset. Such a transitional stage of ...

    Authors: Jun Liang, Eric Donovan, Deborah Gillies, Emma Spanswick and Martin Connors

    Citation: Earth, Planets and Space 2018 70:126

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  2. Content type: Preface

    Recent advances in the field of atmospheric and ionospheric sensing by GNSS and SAR technologies were discussed during two workshops held in February 2016 and October 2016 in Italy, hosted by GEOlab of Politec...

    Authors: Toshitaka Tsuda, Eugenio Realini, Yoshinori Shoji, Akinori Saito, Masanori Yabuki and Masato Furuya

    Citation: Earth, Planets and Space 2018 70:123

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  3. Content type: Full paper

    Based on experimental observations with EISCAT VHF radar during the summer period, July 8–12, 2013, the observations of polar mesosphere summer echoes (PMSE) in the absence of particle precipitation indicate t...

    Authors: Abdur Rauf, Hailong Li, Safi Ullah, Lin Meng, Bin Wang and Maoyan Wang

    Citation: Earth, Planets and Space 2018 70:108

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  4. Content type: Full paper

    Polar mesosphere winter echoes (PMWE) were observed at 70 km over Tromsø, Norway, on 8 January 2014 using the tristatic configuration of the European incoherent scatter VHF radar. For the interval 11:00–13:00 ...

    Authors: Evgenia Belova, Maria Kawnine, Ingemar Häggström, Tima Sergienko, Sheila Kirkwood and Anders Tjulin

    Citation: Earth, Planets and Space 2018 70:110

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  5. Content type: Full paper

    In this work, we investigate the Brazilian low-latitude ionospheric response to two corotating interaction regions (CIRs) and high-speed streams (HSSs) events during the solar minimum of solar cycle 23, in 20...

    Authors: Claudia M. N. Candido, Inez S. Batista, Virginia Klausner, Patricia M. de Siqueira Negreti, Fabio Becker-Guedes, Eurico R. de Paula, Jiankui Shi and Emilia S. Correia

    Citation: Earth, Planets and Space 2018 70:104

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  6. Content type: Technical report

    We report a brief survey of matching conditions for artificial aurora optical experiments utilizing the second electron gyro-harmonic (2.7-MHz frequency) in F region heating with O-mode at the EISCAT Tromsø site ...

    Authors: T. T. Tsuda, M. T. Rietveld, M. J. Kosch, S. Oyama, Y. Ogawa, K. Hosokawa, S. Nozawa, T. Kawabata and A. Mizuno

    Citation: Earth, Planets and Space 2018 70:94

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  7. Content type: Full paper

    We compare hourly averaged neutral winds derived from two meteor radars operating at 33.2 and 55 MHz to estimate the errors in these measurements. We then compare the meteor radar winds with those from a mediu...

    Authors: Iain M. Reid, Daniel L. McIntosh, Damian J. Murphy and Robert A. Vincent

    Citation: Earth, Planets and Space 2018 70:84

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  8. Content type: Full paper

    In this study, we evaluate the El Niño–Southern Oscillation (ENSO) signals in the two dominant temperature diurnal tides, diurnal westward wavenumber 1 (DW1) and diurnal eastward wavenumber 3 (DE3) on the quas...

    Authors: Yang-Yi Sun, Huixin Liu, Yasunobu Miyoshi, Libo Liu and Loren C. Chang

    Citation: Earth, Planets and Space 2018 70:85

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  9. Content type: Full paper

    We studied the assimilation of high-resolution precipitable water vapor (PWV) data derived from a hyper-dense global navigation satellite system network around Uji city, Kyoto, Japan, which had a mean inter-st...

    Authors: Masanori Oigawa, Toshitaka Tsuda, Hiromu Seko, Yoshinori Shoji and Eugenio Realini

    Citation: Earth, Planets and Space 2018 70:74

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  10. Content type: Express Letter

    The vertical downward component of the DC atmospheric electric field, or potential gradient (PG), at Kakioka 150 km southwest of the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) was analyzed before and after...

    Authors: Masatoshi Yamauchi, Masahiko Takeda and Shingo Nagamachi

    Citation: Earth, Planets and Space 2018 70:48

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  11. Content type: Technical report

    We report a brief survey on conditions for artificial aurora optical experiments in F region heating with O-mode at the EISCAT Tromsø site using dynasonde data from 2000 to 2017. The results obtained in our surve...

    Authors: T. T. Tsuda, M. T. Rietveld, M. J. Kosch, S. Oyama, K. Hosokawa, S. Nozawa, T. Kawabata, A. Mizuno and Y. Ogawa

    Citation: Earth, Planets and Space 2018 70:40

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  12. Content type: Full paper

    The ultraviolet imager (UVI) has been developed for the Akatsuki spacecraft (Venus Climate Orbiter mission). The UVI takes ultraviolet (UV) images of the solar radiation reflected by the Venusian clouds with nar...

    Authors: Atsushi Yamazaki, Manabu Yamada, Yeon Joo Lee, Shigeto Watanabe, Takeshi Horinouchi, Shin-ya Murakami, Toru Kouyama, Kazunori Ogohara, Takeshi Imamura, Takao M. Sato, Yukio Yamamoto, Tetsuya Fukuhara, Hiroki Ando, Ko-ichiro Sugiyama, Seiko Takagi, Hiroki Kashimura…

    Citation: Earth, Planets and Space 2018 70:23

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  13. Content type: Full paper

    The radio acoustic sounding system (RASS) with the equatorial atmosphere radar (EAR) at Koto Tabang, Indonesia was adapted to test the effects of the acoustic source location and acoustic frequency range on th...

    Authors: Ina Juaeni, Hiraku Tabata, Noersomadi, Halimurrahman, Hiroyuki Hashiguchi and Toshitaka Tsuda

    Citation: Earth, Planets and Space 2018 70:22

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  14. Content type: Full paper

    Sporadic-E (Es) is a layer of ionization that irregularly appears within the E region of the ionosphere and is known to generate an unusual propagation of very high frequency waves over long distances. The det...

    Authors: Masato Furuya, Takato Suzuki, Jun Maeda and Kosuke Heki

    Citation: Earth, Planets and Space 2017 69:175

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  15. Content type: Full paper

    Combining geometrical optics (GO) and wave optics (WO), the COSMIC data analysis and archive center (CDAAC) retrieved two sets of dry atmosphere temperatures (T) from COSMIC GPS radio occultation (GPS-RO), which ...

    Authors: Noersomadi and Toshitaka Tsuda

    Citation: Earth, Planets and Space 2017 69:125

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  16. Content type: Full paper

    We conducted geomagnetically conjugate observations of 630-nm airglow for a midnight brightness wave (MBW) at Kototabang, Indonesia [geomagnetic latitude (MLAT): 10.0°S], and Chiang Mai, Thailand (MLAT: 8.9°N)...

    Authors: D. Fukushima, K. Shiokawa, Y. Otsuka, M. Kubota, T. Yokoyama, M. Nishioka, S. Komonjinda and C. Y. Yatini

    Citation: Earth, Planets and Space 2017 69:112

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    The Correction to this article has been published in Earth, Planets and Space 2017 69:149

  17. Content type: Full paper

    This paper mainly aims at evaluating capabilities of derivation of ionospheric conductivities using two principal auroral emissions (427.8 and 630 nm). We have evaluated a photometric method of derivation of i...

    Authors: Kazuhiro Adachi, Satonori Nozawa, Yasunobu Ogawa, Asgeir Brekke, Chris Hall and Ryoichi Fujii

    Citation: Earth, Planets and Space 2017 69:90

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  18. Content type: Full paper

    Fabry–Perot interferometer (FPI) is an instrument that can measure the temperature and wind velocity of the thermosphere through observations of airglow emission at a wavelength of 630.0 nm. The Solar-Terrest...

    Authors: Y. Nakamura, K. Shiokawa, Y. Otsuka, S. Oyama, S. Nozawa, T. Komolmis, S. Komonjida, Dave Neudegg, Colin Yuile, J. Meriwether, H. Shinagawa and H. Jin

    Citation: Earth, Planets and Space 2017 69:57

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  19. Content type: Full paper

    In the present work, we analyze the competition between tidal winds and electric fields in the formation of blanketing sporadic E layers (Esb) over São Luís, Brazil (2° 31′ S, 44° 16′ W), a quasi-equatorial stati...

    Authors: Laysa Cristina Araújo Resende, Inez Staciarini Batista, Clezio Marcos Denardini, Alexander José Carrasco, Vânia de Fátima Andrioli, Juliano Moro, Paulo Prado Batista and Sony Su Chen

    Citation: Earth, Planets and Space 2016 68:201

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  20. Content type: Letter

    Simultaneous imaging observations of a noctilucent cloud (NLC) from five sites in Hokkaido, Japan (43.17–45.36°N), were successfully carried out using digital cameras in the early hours of the morning (around ...

    Authors: Hidehiko Suzuki, Kazuyo Sakanoi, Nozomu Nishitani, Tadahiko Ogawa, Mitsumu K. Ejiri, Minoru Kubota, Takenori Kinoshita, Yasuhiro Murayama and Yasushi Fujiyoshi

    Citation: Earth, Planets and Space 2016 68:182

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  21. Content type: Full paper

    The ionospheric mid-latitude trough minimum position as a function of geomagnetic storm time is identified and investigated statistically in terms of the category and the intensity of storms. The data of ion d...

    Authors: Na Yang, Huijun Le and Libo Liu

    Citation: Earth, Planets and Space 2016 68:171

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  22. Content type: Technical report

    A new method for calibrating imaging parameters of photographs taken from the International Space Station (ISS) is presented in this report. Airglow in the mesosphere and the F-region ionosphere was captured on t...

    Authors: Yuta Hozumi, Akinori Saito and Mitsumu K. Ejiri

    Citation: Earth, Planets and Space 2016 68:155

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  23. Content type: Letter

    The Calbuco volcano in southern Chile erupted on April 22, 2015. About 2 h after the first eruption, a Swarm satellite passed above the volcano and observed enhancement of small-amplitude (~0.5 nT) magnetic fl...

    Authors: Tadashi Aoyama, Toshihiko Iyemori, Kunihito Nakanishi, Michi Nishioka, Domingo Rosales, Oscar Veliz and Erick Vidal Safor

    Citation: Earth, Planets and Space 2016 68:148

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  24. Content type: Letter

    The Global Lightning and sprIte MeasurementS (GLIMS) mission has been conducted at the Exposed Facility of Japanese Experiment Module (JEM-EF) of the International Space Station for more than 30 months. This p...

    Authors: Takeshi Morimoto, Hiroshi Kikuchi, Mitsuteru Sato, Tomoo Ushio, Atsushi Yamazaki, Makoto Suzuki, Ryohei Ishida, Yuji Sakamoto, Kazuya Yoshida, Yasuhide Hobara, Takuki Sano, Takumi Abe and Zen-Ichiro Kawasaki

    Citation: Earth, Planets and Space 2016 68:145

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  25. Content type: Full paper

    In this study, we investigated the scale sizes of equatorial plasma irregularities (EPIs) using measurements from the Swarm satellites during its early mission and final constellation phases. We found that wit...

    Authors: Chao Xiong, Claudia Stolle, Hermann Lühr, Jaeheung Park, Bela G. Fejer and Guram N. Kervalishvili

    Citation: Earth, Planets and Space 2016 68:121

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  26. Content type: Full paper

    Heliospheric modulation of galactic cosmic rays links solar cycle activity with neutron monitor count rate on earth. A less direct relation holds between neutron monitor count rate and atmospheric electric fie...

    Authors: H. G. Silva and I. Lopes

    Citation: Earth, Planets and Space 2016 68:119

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  27. Content type: Letter

    Low Earth orbiting geomagnetic satellite missions, such as the Swarm satellite mission, are the only means to monitor and investigate ionospheric currents on a global scale and to make in situ measurements of ...

    Authors: Claudia Stolle, Ingo Michaelis and Jan Rauberg

    Citation: Earth, Planets and Space 2016 68:110

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  28. Content type: Full paper

    Daytime E-region electric fields play a crucial role in the ionospheric dynamics at the geomagnetic dip latitudes. Due to their importance, there is an interest in accurately measuring and modeling the electr...

    Authors: Juliano Moro, Clezio Marcos Denardini, Laysa Cristina Araújo Resende, Sony Su Chen and Nelson Jorge Schuch

    Citation: Earth, Planets and Space 2016 68:103

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  29. Content type: Full paper

    The Swarm satellites were launched on November 22, 2013, and carry accelerometers and GPS receivers as part of their scientific payload. The GPS receivers do not only provide the position and time for the mag...

    Authors: Christian Siemes, João de Teixeira da Encarnação, Eelco Doornbos, Jose van den IJssel, Jiří Kraus, Radek Pereštý, Ludwig Grunwaldt, Guy Apelbaum, Jakob Flury and Poul Erik Holmdahl Olsen

    Citation: Earth, Planets and Space 2016 68:92

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  30. Content type: Full paper

    We have routinely monitored the total frequency (ftEs) and the blanketing frequency (fbEs) of sporadic E layers with the digital sounder under the magnetic equator in the Brazilian sector. Sporadic layers appear ...

    Authors: Clezio Marcos Denardini, Laysa Cristina Araújo Resende, Juliano Moro and Sony Su Chen

    Citation: Earth, Planets and Space 2016 68:80

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  31. Content type: Full paper

    We have been measuring brightness temperature spectra of the atmospheric ozone (O3) emission at 110.83 GHz with a millimeter-wave radiometer (MWR) located at Rikubetsu, Japan, since November 1999. Tropospheric o...

    Authors: Hirofumi Ohyama, Tomoo Nagahama, Akira Mizuno, Hideaki Nakane and Hideo Ogawa

    Citation: Earth, Planets and Space 2016 68:34

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    The Erratum to this article has been published in Earth, Planets and Space 2016 68:122

  32. Content type: Full paper

    Ionospheric signatures possibly induced by the Nepal earthquake are investigated far outside the epicentral region in Taiwan (~3700 km distance from the epicenter) and in the Czech Republic (~6300 km distance ...

    Authors: Jaroslav Chum, Jann-Yenq Liu, Jan Laštovička, Jiří Fišer, Zbyšek Mošna, Jiří Baše and Yang-Yi Sun

    Citation: Earth, Planets and Space 2016 68:24

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  33. Content type: Letter

    Extreme auroral electrojet activities can damage electrical power grids due to large induced currents in the Earth, degrade radio communications and navigation systems due to the ionospheric disturbances and c...

    Authors: Masao Nakamura, Asato Yoneda, Mitsunobu Oda and Ken Tsubouchi

    Citation: Earth, Planets and Space 2015 67:153

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  34. Content type: Full paper

    Characteristics of long-term variation in the amplitude of solar quiet (Sq) geomagnetic field daily variation have been investigated using 1-h geomagnetic field data obtained from 69 geomagnetic observation st...

    Authors: Atsuki Shinbori, Yukinobu Koyama, Masahito Nose, Tomoaki Hori, Yuichi Otsuka and Akiyo Yatagai

    Citation: Earth, Planets and Space 2014 66:155

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  35. Content type: Full paper

    The ionosonde observations made at 5-min intervals at the Indian dip equatorial station Tirunelveli (8.7°N, 77.8°E geographic; 1.1°N dip latitude) from March 2008 to February 2009 during the extended solar min...

    Authors: Viswanathan Lakshmi Narayanan, Sukanta Sau, Subramanian Gurubaran, Kazuo Shiokawa, Nanan Balan, Kaliappan Emperumal and Samireddipalle Sripathi

    Citation: Earth, Planets and Space 2014 66:160

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