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  1. Full paper

    Diffusive shock acceleration of cosmic rays from two stationary shocks

    Diffusive shock acceleration (Fermi acceleration) of cosmic rays in a system containing two shock waves is investigated using test particle simulations and analysis of the diffusion convection equation. We ass...

    Masaru Nakanotani, Tohru Hada and Shuichi Matsukiyo

    Earth, Planets and Space 2018 70:33

    Published on: 21 February 2018

  2. Full paper

    Visualization of attenuation structure and faults in incoming oceanic crust of the Nankai Trough using seismic attenuation profiling

    Seismic attenuation properties were tested as indicators of lateral variation in geological structures and detection of faults within poorly reflective oceanic crust, on a seismic survey line along the Nankai ...

    Tetsuro Tsuru, Jin-Oh Park, Tetsuo No, Yukari Kido and Kazuo Nakahigashi

    Earth, Planets and Space 2018 70:31

    Published on: 16 February 2018

  3. Full paper

    A harmonic spline magnetic main field model for Southern Africa combining ground and satellite data to describe the evolution of the South Atlantic Anomaly in this region between 2005 and 2010

    CHAMP satellite and relatively densely spaced ground-based data measured over southern Africa between 2005 and 2010 are combined in a new regional, harmonic spline based, core field model. This new SACFM-2 mod...

    Emmanuel Nahayo, Pieter B. Kotzé, Monika Korte and Susan J. Webb

    Earth, Planets and Space 2018 70:30

    Published on: 13 February 2018

  4. Full paper

    A dual quaternion algorithm of the Helmert transformation problem

    Rigid transformation including rotation and translation can be elegantly represented by a unit dual quaternion. Thus, a non-differential model of the Helmert transformation (3D seven-parameter similarity trans...

    Huaien Zeng, Xing Fang, Guobin Chang and Ronghua Yang

    Earth, Planets and Space 2018 70:26

    Published on: 12 February 2018

  5. Full paper

    Detection of water vapor time variations associated with heavy rain in northern Italy by geodetic and low-cost GNSS receivers

    GNSS atmospheric water vapor monitoring is not yet routinely performed in Italy, particularly at the regional scale. However, in order to support the activities of regional environmental protection agencies, t...

    Stefano Barindelli, Eugenio Realini, Giovanna Venuti, Alessandro Fermi and Andrea Gatti

    Earth, Planets and Space 2018 70:28

    Published on: 12 February 2018

  6. Full paper

    Ultraviolet imager on Venus orbiter Akatsuki and its initial results

    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...

    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…

    Earth, Planets and Space 2018 70:23

    Published on: 12 February 2018

  7. Full paper

    Venus looks different from day to night across wavelengths: morphology from Akatsuki multispectral images

    Since insertion into orbit on December 7, 2015, the Akatsuki orbiter has returned global images of Venus from its four imaging cameras at eleven discrete wavelengths from ultraviolet (283 and 365 nm) and near ...

    Sanjay S. Limaye, Shigeto Watanabe, Atsushi Yamazaki, Manabu Yamada, Takehiko Satoh, Takao M. Sato, Masato Nakamura, Makoto Taguchi, Tetsuya Fukuhara, Takeshi Imamura, Toru Kouyama, Yeon Joo Lee, Takeshi Horinouchi, Javier Peralta, Naomoto Iwagami, George L. Hashimoto…

    Earth, Planets and Space 2018 70:24

    Published on: 12 February 2018

  8. Full paper

    Time-lapse inversion of one-dimensional magnetotelluric data

    We present a new tool for modelling time-lapse magnetotelluric (MT) data, an emerging technique for monitoring changes in subsurface electrical resistivity. Time-lapse MT data have been acquired in various set...

    Dennis Conway, Graham Heinson, Nigel Rees and Joseph Rugari

    Earth, Planets and Space 2018 70:27

    Published on: 12 February 2018

  9. Express Letter

    Temporal gravity anomalies observed in the Tokai area and a possible relationship with slow slips

    The water in Earth’s mantle is closely related with plate subduction and volcanism. Recent studies revealed that the mantle wedge corner at approximately 30 km depth holds high-pressure water, where many slow ...

    Yoshiyuki Tanaka, Takehito Suzuki, Yuichi Imanishi, Shuhei Okubo, Xinlin Zhang, Miwako Ando, Atsushi Watanabe, Mamoru Saka, Chiaki Kato, Shuichi Oomori and Yoshifumi Hiraoka

    Earth, Planets and Space 2018 70:25

    Published on: 12 February 2018

  10. Full paper

    Retrieval of temperature profiles using radio acoustic sounding system (RASS) with the equatorial atmosphere radar (EAR) in West Sumatra, Indonesia

    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...

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

    Earth, Planets and Space 2018 70:22

    Published on: 7 February 2018

  11. Correction

    Correction to: Which is heterogeneous, stress or strength? An estimation from high-density seismic observations

    After publication of this work [1], an error was noticed. Figures 10 and 12 were accidentally swapped. This was caused due to a typesetting error. This is now corrected below: The publisher apologises for thes...

    Yoshihisa Iio, Itaru Yoneda, Masayo Sawada, Tsutomu Miura, Hiroshi Katao, Yoichiro Takada, Kentaro Omura and Shigeki Horiuchi

    Earth, Planets and Space 2018 70:20

    Published on: 7 February 2018

    The original article was published in Earth, Planets and Space 2017 69:144

  12. Full paper

    Theory, modeling, and integrated studies in the Arase (ERG) project

    Understanding of underlying mechanisms of drastic variations of the near-Earth space (geospace) is one of the current focuses of the magnetospheric physics. The science target of the geospace research project ...

    Kanako Seki, Yoshizumi Miyoshi, Yusuke Ebihara, Yuto Katoh, Takanobu Amano, Shinji Saito, Masafumi Shoji, Aoi Nakamizo, Kunihiro Keika, Tomoaki Hori, Shin’ya Nakano, Shigeto Watanabe, Kei Kamiya, Naoko Takahashi, Yoshiharu Omura, Masahito Nose…

    Earth, Planets and Space 2018 70:17

    Published on: 1 February 2018

  13. Express Letter

    Triggering processes of microseismic events associated with water injection in Okuaizu Geothermal Field, Japan

    A continuous water injection test was conducted to halt the reduction in steam production in the Okuaizu Geothermal Field, Japan. Understanding the factors triggering microseismicity associated with water inje...

    Kyosuke Okamoto, Li Yi, Hiroshi Asanuma, Takashi Okabe, Yasuyuki Abe and Masatoshi Tsuzuki

    Earth, Planets and Space 2018 70:15

    Published on: 1 February 2018

  14. Full paper

    Mean winds at the cloud top of Venus obtained from two-wavelength UV imaging by Akatsuki

    Venus is covered with thick clouds. Ultraviolet (UV) images at 0.3–0.4 microns show detailed cloud features at the cloud-top level at about 70 km, which are created by an unknown UV-absorbing substance. Images...

    Takeshi Horinouchi, Toru Kouyama, Yeon Joo Lee, Shin-ya Murakami, Kazunori Ogohara, Masahiro Takagi, Takeshi Imamura, Kensuke Nakajima, Javier Peralta, Atsushi Yamazaki, Manabu Yamada and Shigeto Watanabe

    Earth, Planets and Space 2018 70:10

    Published on: 15 January 2018

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