Impact Factor 2.243

1. Geomagnetism

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Technical report

Electromagnetic receiver with capacitive electrodes and triaxial induction coil for tunnel exploration

A new type of electromagnetic (EM) receiver has been developed by integrating four capacitive electrodes and a triaxial induction coil with an advanced data logger for tunnel exploration. The new EM receiver ...

Chen Kai, Jin Sheng and Shun Wang

Earth, Planets and Space 2017 69:123

Published on: 11 September 2017
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Express Letter

Depth profiles of resistivity and spectral IP for active modern submarine hydrothermal deposits: a case study from the Iheya North Knoll and the Iheya Minor Ridge in Okinawa Trough, Japan

Submarine hydrothermal deposits are one of the promising seafloor mineral resources, because they can store a large amount of metallic minerals as sulfides. The present study focuses on the electrical properti...

Shogo Komori, Yuka Masaki, Wataru Tanikawa, Junji Torimoto, Yusuke Ohta, Masato Makio, Lena Maeda, Jun-ichiro Ishibashi, Tatsuo Nozaki, Osamu Tadai and Hidenori Kumagai

Earth, Planets and Space 2017 69:114

Published on: 16 August 2017
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Full paper

Electrical conductivity of a locked fault: investigation of the Ganos segment of the North Anatolian Fault using three-dimensional magnetotellurics

This study attempts to reveal the fault zone characteristics of the locked Ganos Fault based on electrical resistivity studies including audio-frequency (AMT: 10,400–1 Hz) and wide-band (MT: 360–0.000538 Hz) m...

Mustafa Karaş, Sabri Bülent Tank and Sinan Özaydın

Earth, Planets and Space 2017 69:107

Published on: 15 August 2017
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Full paper

Electrical conductivity of old oceanic mantle in the northwestern Pacific I: 1-D profiles suggesting differences in thermal structure not predictable from a plate cooling model

Seafloor magnetotelluric (MT) experiments were recently conducted in two areas of the northwestern Pacific to investigate the nature of the old oceanic upper mantle. The areas are far from any tectonic activit...

Kiyoshi Baba, Noriko Tada, Tetsuo Matsuno, Pengfei Liang, Ruibai Li, Luolei Zhang, Hisayoshi Shimizu, Natsue Abe, Naoto Hirano, Masahiro Ichiki and Hisashi Utada

Earth, Planets and Space 2017 69:111

Published on: 15 August 2017
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Full paper

The afternoon counter-electrojet current system along the 75°E meridian during the IEEY

In the present study, the technique of principal component analysis (PCA) is applied to analyze the hourly mean values of geomagnetic field components D, H, and Z along an Indo-Russian chain of stations during...

S. K. Bhardwaj and P. B. V. Subba Rao

Earth, Planets and Space 2017 69:91

Published on: 4 July 2017
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Full paper

Statistical evaluation of global geomagnetic field models over Southern Africa during 2015

Global geomagnetic field models using spherical harmonic basis functions are important in space physics research, space weather and applications like navigation and mineral resources exploration. These models ...

P. B. Kotzé

Earth, Planets and Space 2017 69:84

Published on: 22 June 2017
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Full paper

Use of ssq rotational invariant of magnetotelluric impedances for estimating informative properties for galvanic distortion

Several useful properties and parameters—a model of the regional mean one-dimensional (1D) conductivity profile, local and regional distortion indicators, and apparent gains—were defined in our recent paper us...

T. Rung-Arunwan, W. Siripunvaraporn and H. Utada

Earth, Planets and Space 2017 69:80

Published on: 14 June 2017
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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
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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
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Full paper

Utility of Slepian basis functions for modeling near-surface and satellite magnetic anomalies of the Australian lithosphere

The utility of frequency- and space-limited spherical harmonic Slepian basis functions for magnetic anomaly modeling over restricted spherical patches of the Earth was investigated using combined near-surface ...

Hyung Rae Kim and Ralph R. B. von Frese

Earth, Planets and Space 2017 69:53

Published on: 18 April 2017
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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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Full paper

Paleomagnetic direction and paleointensity variations during the Matuyama–Brunhes polarity transition from a marine succession in the Chiba composite section of the Boso Peninsula, central Japan

The youngest geomagnetic polarity reversal, the Matuyama–Brunhes (M–B) boundary, provides an important plane of data for sediments, ice cores, and lavas. The geomagnetic field intensity and directional changes...

Makoto Okada, Yusuke Suganuma, Yuki Haneda and Osamu Kazaoka

Earth, Planets and Space 2017 69:45

Published on: 21 March 2017
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A reappraisal of instrumental magnetic measurements made in Western Europe before AD 1750: confronting historical geomagnetism and archeomagnetism

We present a new compilation and analysis of historical geomagnetic measurements made in Western Europe before AD 1750. The dataset in its ensemble provides a coherent evolution of magnetic field directions. S...

Maxime Le Goff and Yves Gallet

Earth, Planets and Space 2017 69:32

Published on: 17 February 2017
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Statistical analysis of geomagnetic field intensity differences between ASM and VFM instruments onboard Swarm constellation

From the very first measurements made by the magnetometers onboard Swarm satellites launched by European Space Agency (ESA) in late 2013, it emerged a discrepancy between scalar and vector measurements. An acc...

Paola De Michelis, Roberta Tozzi and Giuseppe Consolini

Earth, Planets and Space 2017 69:24

Published on: 1 February 2017
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The 2014 geomagnetic jerk as observed by southern African magnetic observatories

Rapid secular variation pulses in the Earth’s geomagnetic field have been identified during the last decade. In particular, the 2014 jerk is the latest in a series of localised rapid secular variation events o...

P. B. Kotzé

Earth, Planets and Space 2017 69:17

Published on: 25 January 2017
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Paleomagnetic directional groups and paleointensity from the flood basalt in the Tarim large igneous province: implications for eruption frequency

We present paleomagnetic secular variation and paleointensity from the Early Permian Tarim large igneous province, NW China. The studied sections comprise a total of ~400 m of basaltic flows. Paleomagnetic dir...

Yoichi Usui and Wei Tian

Earth, Planets and Space 2017 69:14

Published on: 19 January 2017
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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
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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
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Letter

Paleomagnetic inclination variations during the last 200 kyr in the Okhotsk Sea and their relation to persistent non-axial-dipole field

Studies on geomagnetic paleointensity using marine sediments revealed that intensity fluctuations contain variations with timescales of 10⁴ years and longer. In contrast, directional secular variations of such ti...

Toshitsugu Yamazaki, Takaya Shimono and Seiko Inoue

Earth, Planets and Space 2016 68:174

Published on: 9 November 2016
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Preface

Special issue “Swarm science results after 2 years in space”

Nils Olsen, Claudia Stolle, Rune Floberghagen, Gauthier Hulot and Alexey Kuvshinov

Earth, Planets and Space 2016 68:172

Published on: 4 November 2016
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