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3. Space science

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  1. Content type: Letter

    We present an analysis of ionospheric irregularities at high latitudes during the 2015 St. Patrick’s Day storm. Our study used measurements from ~2700 ground-based GPS stations and GPS receivers onboard five l...

    Authors: Iurii Cherniak and Irina Zakharenkova

    Citation: Earth, Planets and Space 2016 68:136

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  2. Content type: Letter

    Here we study the global distribution of the plasma density irregularities in the topside ionosphere by using the concurrent GPS and Langmuir probe measurements onboard the Swarm satellites. We analyze 18 mont...

    Authors: Irina Zakharenkova, Elvira Astafyeva and Iurii Cherniak

    Citation: Earth, Planets and Space 2016 68:120

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  3. Content type: Full paper

    The aim of this work is to study the properties of the magnetic field’s fluctuations produced by ionospheric and magnetospheric electric currents during the St. Patrick’s Day geomagnetic storm (17 March 2015)....

    Authors: Paola De Michelis, Giuseppe Consolini, Roberta Tozzi and Maria Federica Marcucci

    Citation: Earth, Planets and Space 2016 68:105

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  4. Content type: Full paper

    The electric field instruments onboard the Swarm satellites make high-resolution measurements of the F-region ion drift. This paper presents an initial investigation of preliminary ion drift data made availabl...

    Authors: R. A. D. Fiori, A. V. Koustov, D. H. Boteler, D. J. Knudsen and J. K. Burchill

    Citation: Earth, Planets and Space 2016 68:100

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  5. Content type: Full paper

    Preliminary Swarm Langmuir probe measurements recorded during March 2015, a period of time including the St. Patrick storm, are considered. Specifically, six time periods are identified: two quiet periods befo...

    Authors: Alessio Pignalberi, Michael Pezzopane, Roberta Tozzi, Paola De Michelis and Igino Coco

    Citation: Earth, Planets and Space 2016 68:93

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  6. Content type: Technical report

    Multipoint observations of plasma waves are essential for separating spatial and temporal variations of a plasma turbulence. Miniaturization and high environmental (temperature and radiation) robustness are k...

    Authors: Mitsunori Ozaki, Satoshi Yagitani, Hirotsugu Kojima, Ken Takahashi, Hiroki Koji, Takahiro Zushi and Yuya Tokunaga

    Citation: Earth, Planets and Space 2016 68:91

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  7. Content type: Full paper

    The 3D instability of spontaneous fast magnetic reconnection process is studied with magnetohydrodynamic simulations, where 2D model of the spontaneous fast magnetic reconnection process is destabilized in thr...

    Authors: Tohru Shimizu, Hiroyuki Torii and Koji Kondoh

    Citation: Earth, Planets and Space 2016 68:89

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  8. Content type: Full paper

    A relatively new method based on measurements by multipoint continuous Doppler sounding is applied to study the occurrence rate, propagation velocities, and directions of spread F structures over Tucumán, Nor...

    Authors: Jaroslav Chum, Jann-Yenq Liu, Shih-Ping Chen, Miguel Angel Cabrera, Jan Laštovička, Jiří Baše, Dalia Burešová, Jiří Fišer, František Hruška and Rodolfo Ezquer

    Citation: Earth, Planets and Space 2016 68:56

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  9. Content type: Full paper

    In this study, we develop a three-dimensional ionospheric tomography with the ground-based global position system (GPS) total electron content observations. Because of the geometric limitation of GPS observati...

    Authors: C. H. Chen, A. Saito, C. H. Lin, M. Yamamoto, S. Suzuki and G. K. Seemala

    Citation: Earth, Planets and Space 2016 68:32

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

  10. Content type: Letter

    In this study, we constructed an empirical model of the equatorial electrojet (EEJ), including local time and longitudinal dependence, based on simultaneous data from 12 magnetometer stations located in six lo...

    Authors: Nurul Shazana Abdul Hamid, Huixin Liu, Teiji Uozumi and Akimasa Yoshikawa

    Citation: Earth, Planets and Space 2015 67:205

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  11. Content type: Frontier letter

    A statistical study using a large dataset of Super Dual Auroral Radar Network (SuperDARN) observations is conducted for transient ionospheric plasma flows associated with sudden impulses (SI) recorded on groun...

    Authors: Tomoaki Hori, Atsuki Shinbori, Shigeru Fujita and Nozomu Nishitani

    Citation: Earth, Planets and Space 2015 67:190

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  12. Content type: Full paper

    We present three eastward-expanding auroral surge (EEAS) events that were observed intermittently at intervals of about 15 min in the post-midnight sector (01:55–02:40 MLT) by all-sky imagers and magnetometers...

    Authors: Yoshimasa Tanaka, Yasunobu Ogawa, Akira Kadokura, Noora Partamies, Daniel Whiter, Carl-Fredrik Enell, Urban Brändström, Tima Sergienko, Björn Gustavsson, Alexander Kozlovsky, Hiroshi Miyaoka and Akimasa Yoshikawa

    Citation: Earth, Planets and Space 2015 67:182

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  13. Content type: Full paper

    This paper (the second of a series) presents the results of statistical investigation of relationship between the interplanetary electric field E KL and the Polar Cap (PC) index in case of...

    Authors: OA Troshichev and DA Sormakov

    Citation: Earth, Planets and Space 2015 67:170

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  14. Content type: Letter

    Accurate mapping of the auroral oval into the equatorial plane is critical for the analysis of aurora and substorm dynamics. Comparison of ion pressure values measured at low altitudes by Defense Meteorologica...

    Authors: E. E. Antonova, V. G. Vorobjev, I. P. Kirpichev, O. I. Yagodkina and M. V. Stepanova

    Citation: Earth, Planets and Space 2015 67:166

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    The Erratum to this article has been published in Earth, Planets and Space 2015 67:188

  15. Content type: FULL PAPER

    Substorm triggering was the focus of recent two-dimensional superposed-epoch analyses based on Geotail and THEMIS data. The results indicate that magnetic-field dipolarization at X∼−8 Re and magnetic reconnection...

    Authors: Hirotoshi Uchino and Shinobu Machida

    Citation: Earth, Planets and Space 2015 67:165

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  16. Content type: Full paper

    A nonlinear optimization algorithm coupled with a model of auroral current systems allows derivation of physical parameters from data and is the basis of a new inversion technique. We refer to this technique a...

    Authors: Martin Connors and Gordon Rostoker

    Citation: Earth, Planets and Space 2015 67:155

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