1. Geomagnetism

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  1. Full paper

    Probing Earth’s conductivity structure beneath oceans by scalar geomagnetic data: autonomous surface vehicle solution

    The electric conductivity distribution of the Earth’s crust and upper mantle provides a key to unraveling its structure. Information can be obtained from vector data time series of the natural variations of th...

    Alexey Kuvshinov, Jürgen Matzka, Benny Poedjono, Friedemann Samrock, Nils Olsen and Sudhir Pai

    Earth, Planets and Space 2016 68:189

    Published on: 22 November 2016

  2. Technical report

    Scanning SQUID microscope system for geological samples: system integration and initial evaluation

    We have developed a high-resolution scanning superconducting quantum interference device (SQUID) microscope for imaging the magnetic field of geological samples at room temperature. In this paper, we provide d...

    Hirokuni Oda, Jun Kawai, Masakazu Miyamoto, Isoji Miyagi, Masahiko Sato, Atsushi Noguchi, Yuhji Yamamoto, Jun-ichi Fujihira, Nobuyoshi Natsuhara, Yoshiyasu Aramaki, Takashige Masuda and Chuang Xuan

    Earth, Planets and Space 2016 68:179

    Published on: 12 November 2016

  3. Full paper

    Estimating ionospheric currents by inversion from ground-based geomagnetic data and calculating geoelectric fields for studies of geomagnetically induced currents

    This research focuses on the inversion of geomagnetic variation field measurements to obtain the source currents in the ionosphere and magnetosphere, and to determine the geoelectric fields at the Earth’s surf...

    J. S. de Villiers, R. J. Pirjola and P. J. Cilliers

    Earth, Planets and Space 2016 68:154

    Published on: 9 September 2016

  4. Letter

    A Swarm lithospheric magnetic field model to SH degree 80

    The Swarm constellation of satellites was launched in November 2013 and since then has delivered high-quality scalar and vector magnetic field measurements. A consortium of several research institutions was se...

    Erwan Thébault, Pierre Vigneron, Benoit Langlais and Gauthier Hulot

    Earth, Planets and Space 2016 68:126

    Published on: 20 July 2016

  5. Full paper

    Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field model

    We use more than 2 years of magnetic data from the Swarm mission, and monthly means from 160 ground observatories as available in March 2016, to update the CHAOS time-dependent geomagnetic field model. The new mo...

    Christopher C. Finlay, Nils Olsen, Stavros Kotsiaros, Nicolas Gillet and Lars Tøffner-Clausen

    Earth, Planets and Space 2016 68:112

    Published on: 11 July 2016

  6. Technical report

    Toward robust deconvolution of pass-through paleomagnetic measurements: new tool to estimate magnetometer sensor response and laser interferometry of sample positioning accuracy

    Pass-through superconducting rock magnetometers (SRM) offer rapid and high-precision remanence measurements for continuous samples that are essential for modern paleomagnetism studies. However, continuous SRM ...

    Hirokuni Oda, Chuang Xuan and Yuhji Yamamoto

    Earth, Planets and Space 2016 68:109

    Published on: 8 July 2016

  7. Full paper

    Unmodelled magnetic contributions in satellite-based models

    A complex system of electric currents flowing in the ionosphere and magnetosphere originates from the interaction of the solar wind and the Interplanetary Magnetic Field (IMF) with the Earth’s magnetic field. ...

    Roberta Tozzi, Mioara Mandea and Paola De Michelis

    Earth, Planets and Space 2016 68:108

    Published on: 28 June 2016

  8. Full paper

    Automated detection of geomagnetic storms with heightened risk of GIC

    Automated detection of geomagnetic storms is of growing importance to operators of technical infrastructure (e.g., power grids, satellites), which is susceptible to damage caused by the consequences of geomagn...

    Rachel L. Bailey and Roman Leonhardt

    Earth, Planets and Space 2016 68:99

    Published on: 7 June 2016

  9. Full paper

    Magnetic field stretching at the top of the shell of numerical dynamos

    The process of magnetic field stretching transfers kinetic energy to magnetic energy and by that maintains dynamos against Ohmic dissipation. Stretching at the top of the outer core may play an important role...

    Diego Peña, Hagay Amit and Katia J. Pinheiro

    Earth, Planets and Space 2016 68:78

    Published on: 14 May 2016

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