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  1. Technical report

    Space environment data acquisition monitor onboard Himawari-8 for space environment monitoring on the Japanese meridian of geostationary orbit

    A space environment data acquisition monitor (SEDA) has been flown onboard the Japanese meteorological satellites ‘Himawari-8/9’ as one of the housekeeping information monitors for satellite operation. SEDA co...

    Tsutomu Nagatsuma, Kaori Sakaguchi, Yûki Kubo, Piet Belgraver, Frédéric Chastellain, Reto Muff and Takeshi Otomo

    Earth, Planets and Space 2017 69:75

    Published on: 30 May 2017

  2. Express Letter

    Recovery process of shear wave velocities of volcanic soil in central Mashiki Town after the 2016 Kumamoto earthquake revealed by intermittent measurements of microtremor

    An earthquake of JMA magnitude 6.5 (foreshock) hit Kumamoto Prefecture, Japan, at 21:26 JST on April 14, 2016. Subsequently, an earthquake of JMA magnitude 7.3 (main shock) hit Kumamoto and Oita Prefectures a...

    Yoshiya Hata, Masayuki Yoshimi, Hiroyuki Goto, Takashi Hosoya, Hitoshi Morikawa and Takao Kagawa

    Earth, Planets and Space 2017 69:72

    Published on: 22 May 2017

  3. Letter

    Geomagnetic storms of cycle 24 and their solar sources

    Solar activity of cycle 24 following the deep minimum between cycle 23 and cycle 24 is the weakest one since cycle 14 (1902–1913). Geomagnetic activity is also low in cycle 24. We show that this low geomagneti...

    Shinichi Watari

    Earth, Planets and Space 2017 69:70

    Published on: 19 May 2017

  4. Frontier letter

    Quasi-Cartesian finite-difference computation of seismic wave propagation for a three-dimensional sub-global model

    A simple and efficient finite-difference scheme is developed to calculate seismic wave propagation in a partial spherical shell model of a three-dimensionally (3-D) heterogeneous global Earth structure for mod...

    Hiroshi Takenaka, Masanao Komatsu, Genti Toyokuni, Takeshi Nakamura and Taro Okamoto

    Earth, Planets and Space 2017 69:67

    Published on: 12 May 2017

  5. Full paper

    Nighttime Pc3 pulsations: MM100 and MAGDAS observations

    In this paper, we present a statistical and case analysis of nighttime Pc3 pulsations observed from middle to equatorial latitudes during the year 2003. We found two groups of nighttime Pc3 pulsations. Pc3s of...

    Nadezda V. Yagova, Balazs Heilig, Vyacheslav A. Pilipenko, Akimasa Yoshikawa, Nataliya S. Nosikova, Kiyohumi Yumoto and Jan Reda

    Earth, Planets and Space 2017 69:61

    Published on: 2 May 2017

  6. Full paper

    Effects of the 2016 Kumamoto earthquakes on the Aso volcanic edifice

    Large earthquakes occurred in the central part of Kumamoto Prefecture on April 14–16, 2016, causing severe damage to the northern segment of the Hinagu faults and the eastern segment of the Futagawa faults. Ea...

    Yasuhisa Tajima, Toshiaki Hasenaka and Masayuki Torii

    Earth, Planets and Space 2017 69:63

    Published on: 2 May 2017

  7. Full paper

    Using ambient vibration measurements for risk assessment at an urban scale: from numerical proof of concept to Beirut case study (Lebanon)

    Post-seismic investigations repeatedly indicate that structures having frequencies close to foundation soil frequencies exhibit significantly heavier damages (Caracas 1967; Mexico 1985; Pujili, Ecuador 1996; L...

    Christelle Salameh, Pierre-Yves Bard, Bertrand Guillier, Jacques Harb, Cécile Cornou, Jocelyne Gérard and Michelle Almakari

    Earth, Planets and Space 2017 69:60

    Published on: 26 April 2017

  8. Letter

    Effect of a huge crustal conductivity anomaly on the H-component of geomagnetic variations recorded in central South America

    We describe here an analysis of the H-component of the geomagnetic field recorded in several temporary stations operating simultaneously in the central–eastern region of Brazil during nighttime pulsation even...

    Antonio L. Padilha, Livia R. Alves, Graziela B. D. Silva and Karen V. Espinosa

    Earth, Planets and Space 2017 69:58

    Published on: 26 April 2017

  9. Full paper

    Automatic selection of Dst storms and their seasonal variations in two versions of Dst in 50 years

    A computer program is developed to automatically identify the geomagnetic storms in Dst index by applying four selection criteria that minimize non-storm-like fluctuations. The program is used to identify the ...

    N. Balan, S. Tulasiram, Y. Kamide, I. S. Batista, J. R. Souza, K. Shiokawa, P. K. Rajesh and N. J. Victor

    Earth, Planets and Space 2017 69:59

    Published on: 26 April 2017

  10. Full paper

    Measurement of thermospheric temperatures using OMTI Fabry–Perot interferometers with 70-mm etalon

    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...

    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

    Earth, Planets and Space 2017 69:57

    Published on: 24 April 2017

  11. Full paper

    An analysis of the 2016 Hitomi breakup event

    The breakup of Hitomi (ASTRO-H) on 26 March 2016 is analysed. Debris from the fragmentation is used to estimate the time of the event by propagating backwards and estimating the close approach with the parent ...

    Sven Flegel, James Bennett, Michael Lachut, Marek Möckel and Craig Smith

    Earth, Planets and Space 2017 69:51

    Published on: 18 April 2017

  12. Full paper

    Generation of billow-like wavy folds by fluidization at high temperature in Nojima fault gouge: microscopic and rock magnetic perspectives

    Microscopic billow-like wavy folds have been observed along slip planes of the Nojima active fault, southwest Japan. The folds are similar in form to Kelvin–Helmholtz (KH) instabilities occurring in fluids, wh...

    Tomohiko Fukuzawa, Norihiro Nakamura, Hirokuni Oda, Minoru Uehara and Hiroyuki Nagahama

    Earth, Planets and Space 2017 69:54

    Published on: 18 April 2017

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