HelioWebTohoku University, Department of Geosciences
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I[Tohoku University, Department of Geosciences]
PI["Parent Institutions (1)"]
CI["Child Institutions (0)"]
AW["Affiliated Works (208)"]
CA["Linked Collaborating Authors (12)"]
I== skos:broader ==>PI
CI== skos:broader ==>I
AW== affil ==>I
AW== author ==>CA
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Affiliated Works
sorted by decreasing year, and then by display-name
- Dynamics of duskside proton aurora observed with the Svalbard all-sky imager and the IMAGE satellite under northward IMF condition : November 26, 2000 event
- Effects of water on cation diffusion in wadsleyite
- High Pressure Form AlOOH and its Relation to Stishovite and Brucite
- Long term variation of radiation belt electrons - TIROS/NOAA observations -
- Mechanisms and Kinetics of the Post-Garnet Transformation in Pyrope
- Model calculation of global magnetic disturbances due to magnetic impulse events
- Occurrences of Pc 1 Waves in the Dayside Cusp, LLBL and BPS Region and Associated Enhancements of Proton Aurora
- Parental thunderclouds of sprites and elves in winter Japan
- Space-time and Spectral Structures of Sprite Halos Obtained from High-speed Photometric and Imaging Observations
- The Iceland Deep Drilling Project (IDDP): Obtaining Supercritical Geothermal Fluid from Hot Spot-Ridge Interaction.
- AKR Disappearance During Magnetic Storms
- Akebono satellite observations of Dispersive Alfven waves and the ionospheric Alfven resonator in the cusp region
- Characteristics of Sprites and their parent thunderstorm systems in winter of Japan
- Charge Moment Differences in Winter of Japan and Summer of the United States
- Generation Mechanisms of Narrowband Pc 1 Waves and Wideband Pc 1-2 Bursts Related to Traveling Convection Vortices
- Ground and satellite observations of Pc 1-2 waves on open field lines poleward of the dayside cusp.
- Hydrogen in Iron at High Pressures and Temperatures
- Phase relations of a carbonaceous chondrite at lower mantle conditions
- Predicted model for possible high pressure form of clinohumite derived from ringwoodite as potential host for water in the upper mantle
- Simulation on the solar cycle variation of the radiation belts - Evaluation on time variation of radial diffusion -
- Solar Wind Temporal and Latitudinal Variations from Soho-Swan
- Statistical identification of solar wind origins of magnetic impulse events (MIEs)
- Studying the solar wind by simultaneous observations of the interplanetary Lyman alpha background with NOZOMI/UVS and SOHO/SWAN
- The characteristics of the corotating aurora observed at Poker Flat, Alaska
- Charge Releasing of Charge Trapping Centers on Milled Quartz Grains
- Interhemispheric conjugate observations of ionospheric convection flows in the dayside high-latitude regions
- Monitoring of magnetospheric convection near the plasmapause using corotating aurora
- Numerical Experiment of the Resonant Scattering Process of Relativistic Electrons in the Outer Radiation Belt
- Observations Of Small-scale Thermospheric Neutral Winds Associated With Auroral Activity
- Observations of transient luminous events on the ROCSAT-2 satellite using ISUAL instruments*
- Polar Experiment Network for Geospace Upper-atmosphere Investigations (PENGUIn): A Vision for Global Polar Studies and Education
- Polar distributions of small-scale magnetic disturbances derived from the Akebono magnetometer data
- Reaction Between Liquid Iron and Mg-perovskite
- Remote sensing of the active regions on both the front and the far side of the Sun by Nozomi Lyman alpha observation
- SC Related Plasma Waves Observed by the Akebono Satellite in the Polar Region and inside the Plasmasphere Region
- Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm
- Strong Tidal Modulation of Earthquakes by Strong Tides
- The Dense Sheath Region of Magnetic Clouds as an Interplanetary Trigger of Geomagnetic Storms
- Tidal Triggering of Earthquakes in and Around the Locked Zone of the Philippine Sea Plate in the Tokai Region, Japan
- Variation of Solar Activity during the Spoerer Minimum
- AKR Activity During Magnetically Quiet Periods
- Akebono satellite observations of Alfvén waves related to dayside small-scale field-aligned currents
- Close Resemblance Between Local Summer Insolation, O<SUB>2</SUB>/N<SUB>2</SUB> and Total Air Content from the Dome Fuji Ice Core, Antarctica
- Envelope Broadening of High-Frequency P- and S-Waves in Relation to Quaternary Volcanoes in Northeastern Honshu, Japan
- Global distribution of TLEs based on the preliminary ISUAL data
- In Situ Density Measurement of Basaltic Melts at High Pressure by X-ray Absorption Method
- Late Pleistocene Sea-level and Deep-sea Temperature Changes Constrained by U.S. Mid-Atlantic Margin Sequences
- Magnetic field disturbances in the Jovian magnetosphere due to large dynamic pressure enhancements in the solar wind
- Modeling of Radiation Belts Dynamics - Development of time dependent model and comparison with satellite data -
- Observations of Sprites and Elves with the ISUAL Array Photometer
- Overview of the ROCSAT-2 Satellite and ISUAL Instruments
- Reaction Between Liquid Iron and Mg-perovskite and Solubility of Silicon and Oxygen in Liquid Iron
- Synthesis of Vector-Wave Envelopes in Random Elastic Media Based on the Stochastic Ray Method
- 28 day modulation of global lightning activity and its relation to tropical cloud coverage and solar activity
- Blue jets, blue starters and other blue luminous events observed by ISUAL payload on the FORMOSAT-2 satellite
- Carbonate Stability and Melt Composition in Peridotite-CO2 System to 20 GPa
- Characteristics of Sprites and Elves and Their Effect on the Upper Atmosphere
- Density Measurement for MORB Melts by X-ray Absorption Method
- Elves spectrum based on the ISUAL photometric data
- Evolution of pitch angle distributions of relativistic electrons in the radiation belt during magnetic storms
- Gigantic jet observation by the ISUAL payload of FORMOSAT-2 satellite
- Gloabl Distribution and Seasonal Distribution Variaion of Transient Luminous Events
- Influence of water on the phase transitions of olivine and its polymorphs in the Earth's mantle
- Key results from the first fourteen months of ISUAL experiment
- Melt-Crystal Density Crossover in the Earth: its Importance in Mantle Dynamics
- Phase relations in the Fe-O-S system at high pressures
- Power-law decay characteristic of coda envelopes revealed from the analysis of regional earthquakes
- SC related electric and magnetic field variations in the inner magnetosphere and plasmasphere regions
- Spatiotemporal evolution of pyroclastic density currents and eruption dynamics during the 6.5 ka caldera-forming eruption, Kikai volcano, Japan
- Volcanic conduit system beneath Aso volcano, Japan inferred from broadband seismic observation and numerical simulation of a fluid-filled crack
- Characteristics Of Short-Term Variation Of The Jovian Synchrotron Radiation At A Frequency Of 327MHz
- Detection of sprites and elves from space through the 762.0 nm filter
- Effect of pressure on the crystal structure of high-temperature polymorph of Ca2SiO4
- Electrical properties of lightning discharges producing sprite streamers and halos measured with the ISUAL/array photometer and ELF magnetometers
- High-pressure sound velocities and single-crystal elastic properties of DHMS phases in subducted slabs
- Hydrogen Incorporation into Olivine at 9-15 GPa: Implication for Water Dynamics near the 410-km Seismic Discontinuity
- Latitudinal Variations Of The F3 Layer Observed From The SEALION Ionosonde Network
- Modeling of CIR-driven modulations of galactic cosmic ray intensity obtained by the Muon detector network
- Northern Hemisphere Forcing of Climatic Cycles Over the Past 360,000 Years Implied by Absolute Dating of Antarctic Ice Cores
- Numerical Simulations of Dawn-Dusk Asymmetry in Latitudinal Width of the Jupiter's Main Auroral Oval
- Self-Consistent Particle Simulation of Whistler-mode Chorus Emissions
- Stability of carbonated basaltic melt at the base of the Earth's upper mantle
- Storm-time Electric Fields in the Inner Magnetosphere
- Temporal variations of the Venus ionosphere during solar flares
- Variations of the electric field distribution in the sub-auroral latitude and polar ionosphere during geomagnetic storms
- Equatorial measurement of SAID electric fields and relation with the plasmapause location
- Estimated intensity of the EMP from lightning discharges necessary for elves initiation based on balloon experiment
- Passive Image Interferometry: Theory and Application to the Source Region of the 2004 Mw = 6.6 Mid-Niigata earthquake
- Phase Space Density of Energetic Electron in Saturn's Inner Magnetosphere From Cassini Observation
- Phasing of orbital forcing and Antarctic climate over the past 470,000 years from an extended Dome Fuji O2/N2 chronology
- Seismic Evidence for the Hainan Plume
- Seismic Imaging of the Mantle Under the Western-Pacific arc and Back-arc Regions
- Shock Metamorphism of L6 Chondrites Sahara 98222 and Yamato 74445: the P-T Conditions and the Shock age
- Simulation of mode conversion process from Upper-Hybrid wave to LO-mode wave in plasmasphere
- Single-crystal elastic properties of hydrous olivine
- The relationship between sprite luminous intensity and electrical property of parent lightning discharges using FORMOSAT-2/ISUAL data
- Unusually High Abundance of Silica Phases in Chondrules In a CR Chondrite, NWA852
- Variation of the cold plasma density structure above the polar ionosphere associated with geomagnetic storms
- Experimental Synthesis of Organic Compounds From Inorganic Materials by the Simulated Impact on the Early Earth
- Global energy deposition and chemical effect by transient luminous events in the upper atmosphere
- Impact of the Inter-annual Variability in CO2 Growth Rate from Atmospheric Transport and Contribution from Latitudinal Partition
- Influence of the Increased SST on Baroclinic Instability Wave Activity Under an Aqua Planet Condition
- Insight into the origin of the Tengchong intraplate volcano in southwest China from local and teleseismic data
- Ion Upflows in the Polar Magnetosphere During Geomagnetic Storms
- Observation of Lightning on Jupiter by a Future Mission
- Pitch angle and energy diffusions by interaction between energetic electrons and neutral particles in Saturn's inner magnetosphere
- Plasmasphere from the Moon
- Response of the convection electric field on southward turning of the IMF
- Seismic imaging of the stagnant Pacific slab in the mantle transition zone under East Asia
- Status of development of lightning detector for PLANET-C mission
- 27-day variations found in lightning activity and cloud amount, and thier relationship to the solar cycle
- Access of the near-Earth electron plasma sheet to the inner magnetosphere seen by THEMIS
- Chemically fractionated olivine-wadsleyite-ringwoodite assemblages in Grove Mountains meteorites: Constraints on formation mechanism of ringwoodite
- Coordinated observations of electron density enhancements in the polar magnetosphere and ion upflows in the ionosphere during geomagnetic storms
- Development of Data analysis system for comparison studies of simulation and observation of mode conversion process in the inner magnetosphere
- Development of atmospheric N2O isotopomers model based on a chemistry-coupled atmospheric general circulation model
- Effects of upward propagating tides on longitudinal and day-to-day variations in the thermosphere/ionosphere simulated by an atmosphere-ionosphere coupled model
- Identification of substorm precursor and expansion onsets by applying Singular Spectrum Transformation to ground-magnetometer data
- Intraplate volcanism and mantle dynamics in East Asia: Big mantle wedge (BMW) model (Invited)
- Observed and Modeled Variations of Tropospheric Carbon Monoxide over Japan
- Reconstruction of last-deglacial palaeoclimate in Northeast Japan using 14C and δ13C records of marsh deposits
- Relationship between solar radio type-I and micro-type-III bursts
- Seismic imaging of the Honshu arc from the Japan Trench to the Japan Sea
- Slab dehydration versus melting: primary arc magma genesis for arc crust formation
- Solar Radiation and Cloud Change in China Calculated in a 20th Century Simulation with a Climate Model
- Spatio-temporal changes of seismic velocity at Miyakejima volcano associated with the 2000 eruption based on the cross-correlation analyses of ambient seismic noise records
- Structural heterogeneity of the Longmenshan fault zone and the mechanism of the 2008 Wenchuan earthquake (Ms 8.0)
- Abrupt change in the rate of hemipelagic sedimentation at the Late Miocene (~11 Ma) in the Shikoku Basin: implications for the tectonic history of the southwestern Japan
- An attempt to detect temporal variations of crustal structure in the source area of the 2006 Wen-An earthquake in North China
- Characteristics of Jovian ionospheric Alfven resonator observed by using wave modulations of L-burst emissions
- Climatic variation on Mars as seen from the polar region layered deposits
- Constructing a carbon cycle analysis system with the local ensemble transform Kalman filter and online transport model
- Deep dehydration and physical and chemical nature of the mantle above the stagnant slab (Invited)
- Deep structure and origin of active volcanoes in China
- Deep structure and seismogenesis of the North-South Seismic Zone in Southwest China
- Estimation of the energy transport of Venusian atmospheric turbulence by the spectral analysis of the VEX/VMC UV images
- Fractional order viscoelasticity and theoretical progress in rheological constitutive law for rocks
- Identification of substorm onset location and pre-onset sequence using Reimei, THEMIS GBO, PFISR and Geotail (Invited)
- Loss time scales of plasma sheet electrons in the morning side: Analysis based on THEMIS observations
- Mode Conversion and Energy Partitioning at Active Volcanoes
- New snow albedo scheme with the influence of black carbon and dust in the NASA catchment-based land surface model
- Reconstruction of Green's function from random noise sources in a multiple scattering medium
- Relationship between solar radio type-I noise storm and Coronal Mass Ejection
- Simulation on the ratio of sodium to potassium in the exosphere of Mercury
- Solar zenith angle dependence of the plasma density and temperature in the polar ionosphere and magnetosphere during geomagnetically quiet periods at solar maximum
- Subsurface new production in the northwestern subtropical North Pacific fueled by nutrients from the Subtropical Mode Water
- Water mass formation rate of the North Pacific and its interannual variation
- Estimation of the cross terms of the Rayleigh waves between seismic stations, and the extension of the SPAC method
- Fluctuations of effusion cycle appeared in a simple analog experiment of geyser
- Frontal wedge deformation near the source region of the 2011 Tohoku-Oki earthquake
- Generation of Electron Cyclotron Harmonic Waves around the Moon
- Observations of non-linear behavior of seismic speed at low strain rate
- Relationship between plasma wave activities near the equatorial magnetosphere and diffuse auroral electron precipitations
- Singular value decomposition images calculated from autocorrelation functions of ambient noise detected by ocean-bottom seismometers in the Japan subduction zone
- Study on Sea Surface Temperature (SST) front disappearance in the subtropical North Pacific
- Temporal and spatial variations of pulsating auroras obtained from ground-based observations at Poker Flat Research Range: Initial result
- Using ambient noise correlations to monitor coseismic and postseismic velocity changes caused by the 2008 Iwate-Miyagi Nairiku earthquake, Japan
- A multi-instrument study of dayside diffuse aurora: GEOTAIL, FAST, and South pole all sky imager observations
- B-type Volcanic Earthquakes during the Gas Emission Stage Observed by Short-period Continuous Monitoring Network at Miyakejima Volcano, Japan
- Biogeochemical linkage between atmosphere and ocean in the eastern equatorial Pacific Ocean: Results from the EqPOS research cruise
- Classification of volcanic ash particles from Sakurajima volcano using CCD camera image and cluster analysis
- Daily simulation using a three-dimensional atmosphere-ocean regional coupled model, CReSS-NHOES over the CINDY/DYNAMO observation region
- Dust-plasma interactions in the Enceladus plume & the E-ring
- Episodic slow slip events in the Japan subduction zone before the 2011 Tohoku-Oki earthquake
- Generation of Electron Cyclotron Harmonic waves around the Moon
- Investigation of the solar UV/EUV heating effect on the Jovian radiation belt by GMRT-IRTF observation
- Role of meteorology in simulating methane seasonal cycle and growth rate
- Significance of Wave-Particle Interaction Analyzer for direct measurement of nonlinear wave-particle interactions
- Slip Distribution of the 2011 Tohoku-oki Earthquake obtained by Geodetic and Tsunami Data and with a 3-D Finite Element Model
- Storm-time electron density enhancement in the cleft ion fountain
- Trial of the Sodium detection in the Lunar / Venusian atmosphere: Solar Eclipse (May 21) / Venus Transit (June 6)
- Two-dimensional propagation of compressional Pi 2 in the inner magnetosphere observed at low latitudes and geosynchronous altitude
- Vertical structure and plasma characteristics of the Encelauds plume
- Whistler-mode waves near lunar crustal magnetic anomalies in the solar wind
- Examination of Japanese Project to Study Martian Atmospheric Escape
- Global and regional emissions estimates for N2O
- Inter-University Upper Atmosphere Global Observation Network (IUGONET) Metadata Database and Its Interoperability
- Large short- and long-term Hikurangi margin, New Zealand SSEs in 2013, and possible triggering of moderate to large seismicity during the SSEs
- Newly found submerged reefs on the Miyako-Sone platform, Ryukyu Arc, northwestern Pacific
- Non-volcanic tremor in Taiwan orogenic zone
- Reduction of the field-aligned potential drop in the polar cap during large geomagnetic storms
- Roles of SST anomalies on wintertime turbulent heat fluxes over the Southern Hemisphere
- Solar-cycle variation of the plasmasphere observed from the Akebono PWS data
- Stratiform cloud over the ocean with a cloud resolving model in coupled/non-coupled ocean experiments
- Variations of atmospheric CH4, N2O and SF6 over Japan and the East China Sea
- Viscoelastic Landward Motion of the Trench Area Following a Subduction Earthquake
- Jupiter Trojan's Shallow Subsurface: Direct Observation By Radar Sounding
- Speleothem-inferred sea level records from northern Italy during Termination V
- Axisymmetric conductance distribution of Jupiter's middle- and low-latitude ionosphere: Effects of meteoric ions
- Characteristics of tephra fall from eruptions at Sakurajima volcano, revealed by optical disdrometer measurements
- Northern Mediterranean precipitation variation and orbital forcing on westerlies over the past 250-400 thousand years ago
- Speleothem-inferred paleoclimate records at 620-450 thousand years ago from northern Mediterranean
- Speleothem-inferred sea-level rise during marine isotope stage 11
- Zonal wind acceleration and atmospheric heating in the Martian mesosphere during the global dust storm 2018 by ground-based IR heterodyne observation and MAVEN/IUVS
- Complex subduction beneath the Tibetan plateau: A slab warping model
- Day-night variation of O<SUB>2</SUB>/CO<SUB>2</SUB> in Mars lower thermosphere
- Deep structure beneath the Baikal rift zone and adjacent areas
- Effects of an intrinsic magnetic field on ion escape under different solar XUV and solar wind conditions
- Effects of the IMF direction on atmospheric escape from Mars under weak intrinsic magnetic field conditions
- High-resolution P-wave Velocity Images of the Crust and Uppermost Mantle Beneath Turkey
- Modeling of SEP induced auroral emission at Mars: Proton contribution to the low altitude peak and effects of crustal fields
- Plasma distribution solver for the field-aligned distribution of ionospheric/magnetospheric plasma related to the auroral electron acceleration process
- Seasonal variation of dayside ionospheric compositions coupled with neutral upper atmosphere on Mars
- Effect of solar zenith angle on the differences between surface and satellite observed cloud properties
- Cloud remote sensing from surface using spectral zenith radiances: Method and satellite product validation
- Interannual Variation in Surface Net Heat Flux in the Barents Sea
- PBL Atmospheric Composition Observation Capabilities by the International Air Quality and Sky Research Remote Sensing (A-SKY) Network
- Post-monsoon crop residue burning activities over northern India: impacts on cloud and radiation fields