Earth,Planets and Space

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On some features characterizing the plasmasphere–magnetosphere–ionosphere system during the geomagnetic storm of 27 May 2017

Wed, 07/17/2019 - 00:00
This paper presents how the magnetosphere–plasmasphere–ionosphere system was affected as a whole during the geomagnetic storm peaking on 27 May 2017. The interplanetary conditions, the magnetospheric response ...

Galileo millimeter-level kinematic precise point positioning with ambiguity resolution

Fri, 07/12/2019 - 00:00
On February 11, 2019, four additional Galileo satellites were put into service, approaching the completion of the European global navigation satellite system constellation. For the first time, the performance ...

Correction to: Simultaneous observation of auroral substorm onset in Polar satellite global images and ground-based all-sky images

Mon, 07/08/2019 - 00:00
In the original publication of this article [1], some reference lines are missing in Fig. 5a and Fig. 6b(6). This correction shows the correct figures. The publisher apologizes to the readers and authors for t...

GPS-derived geocenter motion from the IGS second reprocessing campaign

Fri, 07/05/2019 - 00:00
GPS data processing methods and theories are under continuous refinement in the past 30 years. Using the latest products is supposed to provide more stable and reliable geocenter estimates. In this paper, geoc...

3-D inversion of magnetic data based on the L1–L2 norm regularization

Wed, 07/03/2019 - 00:00
Magnetic inversion is one of the popular methods to obtain information about the subsurface structure. However, many of the conventional methods have a serious problem, that is, the linear equations to be solv...

Coseismic changes in subsurface structure associated with the 2018 Hokkaido Eastern Iburi Earthquake detected using autocorrelation analysis of ambient seismic noise

Thu, 06/27/2019 - 00:00
Autocorrelation analysis using ambient noise is a useful method to detect temporal changes in wave velocity and scattering property. In this study, we investigated the temporal changes in seismic wave velocity...

Insight into the 2017 Mainling Mw 6.5 earthquake: a complicated thrust event beneath the Namche Barwa syntaxis

Mon, 06/24/2019 - 00:00
On November 18, 2017, the Mainling Mw 6.5 earthquake occurred on the northern Namche Barwa syntaxis and was the largest earthquake in the syntaxis and surrounding areas since the Zayu Mw 8.4 earthquake in 1950. D...

Earth atmospheric loss through the plasma mantle and its dependence on solar wind parameters

Fri, 06/21/2019 - 00:00
Atmospheric loss and ion outflow play an important role in the magnetospheric dynamics and in the evolution of the atmosphere on geological timescales—an evolution which is also dependent on the solar activity...

Crustal structure of the eastern Piedmont and Atlantic coastal plain in North Carolina and Virginia, eastern North American margin

Thu, 06/20/2019 - 00:00
The eastern North American rifted margin is a passive tectonic margin that has experienced Paleozoic ocean closure and Mesozoic continent rifting. To understand evolution of this continental margin, we modeled...

Cause of destructive strong ground motion within 1–2 s in Mukawa town during the 2018 Mw 6.6 Hokkaido eastern Iburi earthquake

Thu, 06/13/2019 - 00:00
We investigated the cause of destructive ground motion during the 2018 Hokkaido eastern Iburi earthquake. We conducted strong motion observations of aftershocks and microtremors and the surface wave method in ...

Source parameters and site amplifications estimated by generalized inversion technique: focusing on the 2018 Hokkaido Iburi-Tobu earthquake

Thu, 06/13/2019 - 00:00
The 2018 Hokkaido Iburi-Tobu earthquake occurred on September 6. In this earthquake, seismic intensity 7 was measured at Shikanuma, Atsuma Town, and severe damage occurred in Hokkaido. The strong motions were ...

A high-resolution gravimetric quasigeoid model for Vietnam

Mon, 06/03/2019 - 00:00
A high-resolution gravimetric quasigeoid model for Vietnam and its surrounding areas was determined based on new gravity data. A set of 29,121 land gravity measurements was used in combination with fill-in dat...

Detection and interpretation of local surface deformation from the 2018 Hokkaido Eastern Iburi Earthquake using ALOS-2 SAR data

Mon, 06/03/2019 - 00:00
We identified and analyzed surface displacements associated with the 2018 Hokkaido Eastern Iburi Earthquake in northern Japan using satellite radar interferograms from the Advanced Land Observing Satellite 2. ...

Rupture process of the 2018 Hokkaido Eastern Iburi earthquake derived from strong motion and geodetic data

Fri, 05/31/2019 - 00:00
The source rupture process of the 2018 Hokkaido Eastern Iburi earthquake was investigated by performing a joint inversion analysis using the strong motion and geodetic data. A fault model that consists of two ...

Geodetically estimated location and geometry of the fault plane involved in the 2018 Hokkaido Eastern Iburi earthquake

Fri, 05/31/2019 - 00:00
By applying the InSAR method to ALOS-2 SAR data acquired before and after the 2018 Hokkaido Eastern Iburi earthquake, the ground displacement fields were successfully mapped. Ground deformation is distributed ...

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

Tue, 05/28/2019 - 00:00
The Editor-in-Chief is retracting this article (Hata et al. 2017) because an Investigation Committee established by Osaka University has found that data were fabricated by manipulation, and that theoretical ca...

Long-term slow slip event detected beneath the Shima Peninsula, central Japan, from GNSS data

Mon, 05/27/2019 - 00:00
Long-term slow slip events (SSEs), the largest events among slow earthquakes, occur repeatedly along the Nankai Trough, southwest Japan. Their locations, near the locked zones of the plate interface responsibl...

Ambient tectonic tremors in Manawatu, Cape Turnagain, Marlborough, and Puysegur, New Zealand

Wed, 05/22/2019 - 00:00
Tectonic tremors have been detected in New Zealand, including the Gisborne and Manawatu regions in the North Island and along the Alpine Fault in the South Island. Here we report a regional analysis of tremor ...

Modelling of electromagnetic signatures of global ocean circulation: physical approximations and numerical issues

Wed, 05/22/2019 - 00:00
The interactions of flowing electrically conductive seawater with Earth’s magnetic field generate electric currents within the oceans, as well as secondary electric currents induced in the resistive solid Eart...

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