Earth Planets and Space

Article	Citations
International Geomagnetic Reference Field: the thirteenth generation	321
The CHAOS-7 geomagnetic field model and observed changes in the South Atlantic Anomaly	151
MOWLAS: NIED observation network for earthquake, tsunami and volcano	144
Nonlinear wave growth theory of whistler-mode chorus and hiss emissions in the magnetosphere	69
Martian moons exploration MMX: sample return mission to Phobos elucidating formation processes of habitable planets	43
CM6: a comprehensive geomagnetic field model derived from both CHAMP and Swarm satellite observations	39
Ionospheric signatures of repeated passages of atmospheric waves by the 2022 Jan. 15 Hunga Tonga-Hunga Ha’apai eruption detected by QZSS-TEC observations in Japan	39
Frictional and structural controls of seismic super-cycles at the Japan trench	38
Characteristics of the deep sea tsunami excited offshore Japan due to the air wave from the 2022 Tonga eruption	38
Anatomy of active volcanic edifice at the Kusatsu–Shirane volcano, Japan, by magnetotellurics: hydrothermal implications for volcanic unrests	34
Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars observations	34
Focal mechanisms and the stress field in the aftershock area of the 2018 Hokkaido Eastern Iburi earthquake (MJMA = 6.7)	34
Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field	33
Ionospheric disturbances observed over Japan following the eruption of Hunga Tonga-Hunga Ha’apai on 15 January 2022	30
Very broadband strain-rate measurements along a submarine fiber-optic cable off Cape Muroto, Nankai subduction zone, Japan	30
Regional probabilistic tsunami hazard assessment associated with active faults along the eastern margin of the Sea of Japan	29
Surface displacement revealed by L-band InSAR analysis in the Mayya area, Central Yakutia, underlain by continuous permafrost	29
COV-OBS.x2: 180 years of geomagnetic field evolution from ground-based and satellite observations	29
The CSES global geomagnetic field model (CGGM): an IGRF-type global geomagnetic field model based on data from the China Seismo-Electromagnetic Satellite	28
Landslide detection in mountainous forest areas using polarimetry and interferometric coherence	27
Catalog of small repeating earthquakes for the Japanese Islands	27
The Kalmag model as a candidate for IGRF-13	27
Sequential modelling of the Earth’s core magnetic field	27
Probing 3-D electrical conductivity of the mantle using 6 years of Swarm, CryoSat-2 and observatory magnetic data and exploiting matrix Q-responses approach	26
Special issue “International Geomagnetic Reference Field: the thirteenth generation”	26

Operational solar flare prediction model using Deep Flare Net	25
Repeated occurrence of surface-sediment remobilization along the landward slope of the Japan Trench by great earthquakes	24
Spatial scale of geomagnetic Pc5/Pi3 pulsations as a factor of their efficiency in generation of geomagnetically induced currents	23
Spatial and temporal influence of rainfall on crustal pore pressure based on seismic velocity monitoring	22
Validation of coronal mass ejection arrival-time forecasts by magnetohydrodynamic simulations based on interplanetary scintillation observations	22
Unmixing biogenic and terrigenous magnetic mineral components in red clay of the Pacific Ocean using principal component analyses of first-order reversal curve diagrams and paleoenvironmental implicat	22
Measurement of geomagnetically induced current (GIC) around Tokyo, Japan	22
Detection of deep low-frequency earthquakes in the Nankai subduction zone over 11 years using a matched filter technique	21
Numerical prediction of sporadic E layer occurrence using GAIA	21
Development of a detection method for short-term slow slip events using GNSS data and its application to the Nankai subduction zone	19
Crustal architecture of a metallogenic belt and ophiolite belt: implications for mineral genesis and emplacement from 3-D electrical resistivity models (Bayankhongor area, Mongolia)	19
A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018	19
First simulations of day-to-day variability of mid-latitude sporadic E layer structures	19
Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude	19
Relationship between large-scale ionospheric field-aligned currents and electron/ion precipitations: DMSP observations	19
Improvement on spatial resolution of a coseismic slip distribution using postseismic geodetic data through a viscoelastic inversion	18
Solar activity dependence of medium-scale traveling ionospheric disturbances using GPS receivers in Japan	18
Source modeling and spectral analysis of the Crete tsunami of 2nd May 2020 along the Hellenic Subduction Zone, offshore Greece	18
Science operation plan of Phobos and Deimos from the MMX spacecraft	18
The MMX rover: performing in situ surface investigations on Phobos	17
Atmospheric modes excited by the 2021 August eruption of the Fukutoku-Okanoba volcano, Izu–Bonin Arc, observed as harmonic TEC oscillations by QZSS	17
Comparison of volcanic explosions in Japan using impulsive ionospheric disturbances	17
The universal sample holders of microanalytical instruments of FIB, TEM, NanoSIMS, and STXM-NEXAFS for the coordinated analysis of extraterrestrial materials	17
The 2018 phreatic eruption at Mt. Motoshirane of Kusatsu–Shirane volcano, Japan: eruption and intrusion of hydrothermal fluid observed by a borehole tiltmeter network	17
Co- and postseismic slip behaviors extracted from decadal seafloor geodesy after the 2011 Tohoku-oki earthquake	17
Wave–particle interaction effects in the Van Allen belts	17
Classification of long-term very long period (VLP) volcanic earthquakes at Whakaari/White Island volcano, New Zealand	16
Penetration electric fields observed at middle and low latitudes during the 22 June 2015 geomagnetic storm	16
Determination of the dipping direction of a blind reverse fault from InSAR: case study on the 2017 Sefid Sang earthquake, northeastern Iran	16
A confirmation of vertical acoustic resonance and field-aligned current generation just after the 2022 Hunga Tonga Hunga Ha’apai volcanic eruption	16
South American auroral reports during the Carrington storm	16
In situ science on Phobos with the Raman spectrometer for MMX (RAX): preliminary design and feasibility of Raman measurements	16
Surface environment of Phobos and Phobos simulant UTPS	16
Observing Earth’s magnetic environment with the GRACE-FO mission	16
Oxygen torus and its coincidence with EMIC wave in the deep inner magnetosphere: Van Allen Probe B and Arase observations	16
Ocean-wave phenomenon around Japan due to the 2022 Tonga eruption observed by the wide and dense ocean-bottom pressure gauge networks	16
Resonant interaction of relativistic electrons with realistic electromagnetic ion–cyclotron wave packets	15
Prediction of geomagnetically induced currents (GICs) flowing in Japanese power grid for Carrington-class magnetic storms	15
Magmatic–hydrothermal system of Aso Volcano, Japan, inferred from electrical resistivity structures	15
Geomagnetic core field models and secular variation forecasts for the 13th International Geomagnetic Reference Field (IGRF-13)	15
In situ observations of ions and magnetic field around Phobos: the mass spectrum analyzer (MSA) for the Martian Moons eXploration (MMX) mission	15
Two-step seismic noise reduction caused by COVID-19 induced reduction in social activity in metropolitan Tokyo, Japan	15
Precursory ground deformation of the 2018 phreatic eruption on Iwo-Yama volcano, revealed by four-dimensional joint analysis of airborne and spaceborne InSAR	14
Coeruptive and posteruptive crustal deformation associated with the 2018 Kusatsu-Shirane phreatic eruption based on PALSAR-2 time series analysis	14
AusLAMP 3D MT imaging of an intracontinental deformation zone, Musgrave Province, Central Australia	14
Relative contributions of large-scale and wedgelet currents in the substorm current wedge	14
MIRS: an imaging spectrometer for the MMX mission	14
Non-monotonic growth and motion of the South Atlantic Anomaly	14
Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations	14
Assessment of HY-2A GM data by deriving the gravity field and bathymetry over the Gulf of Guinea	13

Analysis and prediction of polar motion using MSSA method	13
Statistical analysis of short-wave fadeout for extreme space weather event estimation	13
An ultra-low magnetic field thermal demagnetizer for high-precision paleomagnetism	13
Statistical analysis of ionospheric total electron content (TEC): long-term estimation of extreme TEC in Japan	13
Crustal structure beneath earthquake swarm in the Noto peninsula, Japan	13
Extreme geomagnetic activities: a statistical study	13
Three-dimensional topographic relief of the oceanic crust may control the occurrence of shallow very-low-frequency earthquakes in the Nankai Trough off Kumano	13
Gravimetric geoid modeling from the combination of satellite gravity model, terrestrial and airborne gravity data: a case study in the mountainous area, Colorado	12
Day-to-day variation of pre-reversal enhancement in the equatorial ionosphere based on GAIA model simulations	12
Space weather benchmarks on Japanese society	12
Consistent estimation of strain-rate fields from GNSS velocity data using basis function expansion with ABIC	12
Detecting pre-eruptive magmatic processes of the 2018 eruption at Kilauea, Hawaii volcano with ambient noise interferometry	12
Design of telescopic nadir imager for geomorphology (TENGOO) and observation of surface reflectance by optical chromatic imager (OROCHI) for the Martian Moons Exploration (MMX)	12
Detection of triggered shallow slips caused by large earthquakes using L-band SAR interferometry	12
GENESIS: co-location of geodetic techniques in space	12
Long-term slow slip events along the Nankai trough delayed by the 2016 Kumamoto earthquake, Japan	12
Dynamic precise orbit determination of Hayabusa2 using laser altimeter (LIDAR) and image tracking data sets	11
Continuous monitoring of the 2015–2018 Nevado del Ruiz activity, Colombia, using satellite infrared images and local infrasound records	11
Repeated triggered ruptures on a distributed secondary fault system: an example from the 2016 Kumamoto earthquake, southwest Japan	11
Effects of uncertainty in fault parameters on deterministic tsunami hazard assessment: examples for active faults along the eastern margin of the Sea of Japan	11
Environmental assessment in the prelaunch phase of Hayabusa2 for safety declaration of returned samples from the asteroid (162173) Ryugu: background monitoring and risk management during development o	11
Spatio-temporal distribution of shallow very-low-frequency earthquakes between December 2020 and January 2021 in Kumano-nada, Nankai subduction zone, detected by a permanent seafloor seismic network	11
Magma reservoir beneath Azumayama Volcano, NE Japan, as inferred from a three-dimensional electrical resistivity model explored by means of magnetotelluric method	11
Signs of a new geomagnetic jerk between 2019 and 2020 from Swarm and observatory data	11
Comparison of the tidal signatures in sporadic E and vertical ion convergence rate, using FORMOSAT-3/COSMIC radio occultation observations and GAIA model	11
Migration diffusivity as a controlling factor in the duration of earthquake swarms	11
Predictions of the geomagnetic secular variation based on the ensemble sequential assimilation of geomagnetic field models by dynamo simulations	11
New GEONET analysis strategy at GSI: daily coordinates of over 1300 GNSS CORS in Japan throughout the last quarter century	11
Subpacket structure in strong VLF chorus rising tones: characteristics and consequences for relativistic electron acceleration	11
Lateral variations of electrical conductivity in the lower mantle constrained by Swarm and CryoSat-2 missions	11
Electrical conductive fluid-rich zones and their influence on the earthquake initiation, growth, and arrest processes: observations from the 2016 Kumamoto earthquake sequence, Kyushu Island, Japan	11
Tsunami inundation characteristics along the Japan Sea coastline: effect of dunes, breakwaters, and rivers	11
Geomagnetic Virtual Observatories: monitoring geomagnetic secular variation with the Swarm satellites	11
Response of a hydrothermal system to escalating phreatic unrest: the case of Turrialba and Irazú in Costa Rica (2007–2012)	11
Statistical investigation of gravity wave characteristics in the ionosphere	11
Changes in the b value in and around the focal areas of the M6.9 and M6.8 earthquakes off the coast of Miyagi prefecture, Japan, in 2021	10
First two-way laser ranging to a lunar orbiter: infrared observations from the Grasse station to LRO’s retro-reflector array	10
New hypothesis to explain Quaternary forearc deformation and the variety of plate boundary earthquakes along the Suruga–Nankai Trough by oblique subduction of undulations on the Philippine Sea Plate	10
The Mie representation for Mercury’s magnetic field	10
MMX geodesy investigations: science requirements and observation strategy	10
Improvement of near-field tsunami forecasting method using ocean-bottom pressure sensor network (S-net)	10
Global marine gravity anomalies from multi-satellite altimeter data	10
Source model for the Mw 6.0 earthquake in Jiashi, China on 19 January 2020 from Sentinel-1A InSAR data	10
High-fidelity elastic Green’s functions for subduction zone models consistent with the global standard geodetic reference system	10
Applications for CryoSat-2 satellite magnetic data in studies of Earth’s core field variations	10
A potential subsurface cavity in the continuous ejecta deposits of the Ziwei crater discovered by the Chang’E-3 mission	10
Drift of an ocean bottom electromagnetometer from the Bonin to Ryukyu Islands: estimation of the path and travel time by numerical tracking experiments	10
The ionospheric condition and GPS positioning performance during the 2013 tropical cyclone Usagi event in the Hong Kong region	10
Synthetic analysis of the efficacy of the S-net system in tsunami forecasting	10
Penetration of the electric fields of the geomagnetic sudden commencement over the globe as observed with the HF Doppler sounders and magnetometers	10
A candidate secular variation model for IGRF-13 based on MHD dynamo simulation and 4DEnVar data assimilation	9
Detailed S-wave velocity structure of sediment and crust off Sanriku, Japan by a new analysis method for distributed acoustic sensing data using a seafloor cable and seismic interferometry	9
Separation of magnetotelluric signals based on refined composite multiscale dispersion entropy and orthogonal matching pursuit	9
The GAs Extraction and Analyses system (GAEA) for immediate extraction and measurements of volatiles in the Hayabusa2 sample container	9
Magnetotelluric study in the Los Lagos Region (Chile) to investigate volcano-tectonic processes in the Southern Andes	9
Diagnosing low-/mid-latitude ionospheric currents using platform magnetometers: CryoSat-2 and GRACE-FO	9
The Mag.num core field model as a parent for IGRF-13, and the recent evolution of the South Atlantic Anomaly	9
Optimal antenna locations of the VLBI Global Observing System for the estimation of Earth orientation parameters	9
Statistical study of medium-scale traveling ionospheric disturbances in low-latitude ionosphere using an automatic algorithm	9
Rotation of the Philippine Sea plate inferred from paleomagnetism of oriented cores taken with an ROV-based coring apparatus	9
Ionospheric irregularities and scintillations: a direct comparison of in situ density observations with ground-based L-band receivers	9
A local lithospheric structure model for Vietnam derived from a high-resolution gravimetric geoid	9
Reductive dissolution of biogenic magnetite	9
Modelling of geomagnetically induced currents in the Czech transmission grid	9
3-D global hybrid simulations of magnetospheric response to foreshock processes	9
Sporadic E morphology based on COSMIC radio occultation data and its relationship with wind shear theory	9
Solar cycle-related variation in solar differential rotation and meridional flow in solar cycle 24	9
Predicted results of the velocity structure at the target site of the blind prediction exercise from microtremors and surface wave method as Step-1, Report for the experiments for the 6th internationa	9
Observing UT1-UTC with VGOS	9
Real-time automatic uncertainty estimation of coseismic single rectangular fault model using GNSS data	8
Investigation of dominant traveling 10-day wave components using long-term MERRA-2 database	8
Behavior of magmatic components in fumarolic gases related to the 2018 phreatic eruption at Ebinokogen Ioyama volcano, Kirishima Volcanic Group, Kyushu, Japan	8
PSTEP: project for solar–terrestrial environment prediction	8
Estimate of economic impact of atmospheric radiation storm associated with solar energetic particle events on aircraft operations	8
Foreshock–mainshock–aftershock sequence analysis of the 14 January 2021 (Mw 6.2) Mamuju–Majene (West Sulawesi, Indonesia) earthquake	8
Validation of computed extreme ultraviolet emission spectra during solar flares	8
Performance estimate of some prototypes of inertial platform and strapdown marine gravimeters	8
Modeling long-term volcanic deformation at Kusatsu-Shirane and Asama volcanoes, Japan, using the GNSS coordinate time series	8
Lithosphere–asthenosphere boundary beneath the Sea of Japan from transdimensional inversion of S-receiver functions	8
Spatiotemporal behavior of a large-scale landslide at Mt. Onnebetsu-dake, Japan, detected by three L-band SAR satellites	8

Volcanological challenges to understanding explosive large-scale eruptions	8
NOAA/NCEI and University of Colorado candidate models for IGRF-13	8
Numerical forecast of the upper atmosphere and ionosphere using GAIA	8
Exploring planets and asteroids with 6DoF sensors: Utopia and realism	8
Relationship between three-dimensional velocity of filament eruptions and CME association	8
Assessment of the performance of GPS/Galileo PPP-RTK convergence using ionospheric corrections from networks with different scales	8
Kalmag: a high spatio-temporal model of the geomagnetic field	8
A secular variation candidate model for IGRF-13 based on Swarm data and ensemble inverse geodynamo modelling	8
Three-dimensional deformation and its uncertainty derived by integrating multiple SAR data analysis methods	8
Evaluation of hydrological and cryospheric angular momentum estimates based on GRACE, GRACE-FO and SLR data for their contributions to polar motion excitation	8
Chemical assessment of the explosive chamber in the projector system of Hayabusa2 for asteroid sampling	8
Analytical protocols for Phobos regolith samples returned by the Martian Moons eXploration (MMX) mission	8
Postseismic deformation following the 2016 Kumamoto earthquake detected by ALOS-2/PALSAR-2	7
The Mars system revealed by the Martian Moons eXploration mission	7
Ambient noise tomography for a high-resolution 3D S-wave velocity model of the Kinki Region, Southwestern Japan, using dense seismic array data	7
Enhanced wide-area multi-GNSS RTK and rapid static positioning in the presence of ionospheric disturbances	7
ScintPi 2.0 and 3.0: low-cost GNSS-based monitors of ionospheric scintillation and total electron content	7
PAHs, hydrocarbons, and dimethylsulfides in Asteroid Ryugu samples A0106 and C0107 and the Orgueil (CI1) meteorite	7
Influence of permeability on the hydrothermal system at Vulcano Island (Italy): inferences from numerical simulations	7
Combined approach to estimate the depth of the magma surface in a shallow conduit at Aso volcano, Japan	7
Anatomy of thermal unrest at a hydrothermal system: case study of the 2021–2022 crisis at Vulcano	7
Magnetometer data from the GRACE satellite duo	7
Application of deep learning-based neural networks using theoretical seismograms as training data for locating earthquakes in the Hakone volcanic region, Japan	7
Morphology of sporadic E layers derived from Fengyun-3C GPS radio occultation measurements	7
Surface deformation evolution in the Pearl River Delta between 2006 and 2011 derived from the ALOS1/PALSAR images	7
Geomagnetic conjugacy of plasma bubbles extending to mid-latitudes during a geomagnetic storm on March 1, 2013	7
Reconstructing surface eruptive sequence of 2018 small phreatic eruption of Iwo-yama volcano, Kirishima Volcanic Complex, Japan, by infrasound cross-correlation analysis	7
Severe L-band scintillation over low-to-mid latitudes caused by an extreme equatorial plasma bubble: joint observations from ground-based monitors and GOLD	7
On the determination of the atmospheric outer scale length of turbulence using GPS phase difference observations: the Seewinkel network	7
Spatiotemporal functional modeling of postseismic deformations after the 2011 Tohoku-Oki earthquake	7
Evaluation of selected short-term predictions of UT1-UTC and LOD collected in the second earth orientation parameters prediction comparison campaign	7
Determination of SLR station coordinates based on LEO, LARES, LAGEOS, and Galileo satellites	7
Coulomb stress change on inland faults during megathrust earthquake cycle in southwest Japan	7
A simple method to evaluate the air-to-ground coupling efficiency: a tool helping the assessment of seismic/infrasonic energy partitioning during an eruption	7
Estimation of source, path, and site factors of S waves recorded at the S-net sites in the Japan Trench area using the spectral inversion technique	7
Predicted results of weak and strong ground motions at the target site of the blind prediction exercise as steps-2 and -3, Report for the experiments for the 6th international symposium on effects of	7
MCMC inversion of the transient and steady-state creep flow law parameters of dunite under dry and wet conditions	7
Space-to-space very low frequency radio transmission in the magnetosphere using the DSX and Arase satellites	7
Influence of crustal lithology and the thermal state on microseismicity in the Wakayama region, southern Honshu, Japan	6
Estimation of bulk permittivity of the Moon’s surface using Lunar Radar Sounder on-board Selenological and Engineering Explorer	6
Performance assessment of radio occultation data from GeoOptics by comparing with COSMIC data	6
CMT inversion for small-to-moderate earthquakes applying to dense short-period OBS array at off Ibaraki region	6
On the performance of position-domain sidereal filter for 30-s kinematic GPS to mitigate multipath errors	6
Spatial–temporal properties of afterslip associated with the 2015 Mw 8.3 Illapel earthquake, Chile	6
Oxidation during magma mixing recorded by symplectites at Kusatsu–Shirane Volcano, Central Japan	6
The effect of initial and prior models on phase tensor inversion of distorted magnetotelluric data	6
A quasi-27-day oscillation activity from the troposphere to the mesosphere and lower thermosphere at low latitudes	6
Dynamic deformation and fault locking of the Xianshuihe Fault Zone, Southeastern Tibetan Plateau: implications for seismic hazards	6
Long-period ground motion simulation using centroid moment tensor inversion solutions based on the regional three-dimensional model in the Kanto region, Japan	6
Adjoint-based direct data assimilation of GNSS time series for optimizing frictional parameters and predicting postseismic deformation following the 2003 Tokachi-oki earthquake	6
Seasonal and transient surface displacements in the Kumamoto area, Japan, associated with the 2016 Kumamoto earthquake: implications for seismic-induced groundwater level change	6
Trace-element analysis of mineral grains in Ryugu rock fragment sections by synchrotron-based confocal X-ray fluorescence	6
Solar and lunar daily geomagnetic variations and their equivalent current systems observed by Swarm	6
On the relationship between energy input to the ionosphere and the ion outflow flux under different solar zenith angles	6
Co-estimating geomagnetic field and calibration parameters: modeling Earth’s magnetic field with platform magnetometer data	6
“N”-shaped Y/X coda spectral ratio observed for in-line-type OBS networks; S-net and ETMC: interpretation based on natural vibration of pressure vessel	6
Spatial changes in inclusion band spacing as an indicator of temporal changes in slow slip and tremor recurrence intervals	6
Stress and pore fluid pressure control of seismicity rate changes following the 2016 Kumamoto earthquake, Japan	6
L-band Synthetic Aperture Radar: Current and future applications to Earth sciences	6
On data reduction methods for volcanic tremor characterization: the 2012 eruption of Copahue volcano, Southern Andes	6
Solar wind parameter and seasonal variation effects on the South Atlantic Anomaly using Tsyganenko Models	6
A case study of correspondence between Pc1 activity and ionospheric irregularities at polar latitudes	6
Coastal tsunami prediction in Tohoku region, Japan, based on S-net observations using artificial neural network	6
IZMIRAN candidate field model for IGRF-13	6
Total mass estimate of the January 23, 2018, phreatic eruption of Kusatsu-Shirane Volcano, central Japan	6
Deep groundwater discharge after the 2011 Mw 6.6 Iwaki earthquake, Japan	6
Light detection and ranging (LIDAR) laser altimeter for the Martian Moons Exploration (MMX) spacecraft	6
Inertial effects due to eruption-induced atmospheric disturbances identified by superconducting gravimeter observations at Matsushiro, Japan	6
Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs	6
Comparison of seasonal and longitudinal variation of daytime MSTID activity using GPS observation and GAIA simulations	6
Evidence for presence of a global quasi-resonant mode of oscillations during high-intensity long-duration continuous AE activity (HILDCAA) events	6
Laboratory investigation of coupled electrical interaction of fracturing rock with gases	6