TOPICS

• Commencement of Shortwave Propagation Simulator (HF-START) Service[ 2021.03.25 ]

• PSTEP research team led by Prof. Kusano developed the first physics-based method that can predict imminent large solar flares[ 2020.08.06 ]

• Solar Cycle 2009-2019[ 2020.03.12 ]

• Science Nuggets No.27 (20200304)
  
  Numerical modeling of solar atmospheric magnetic fields including pressure and gravity[ 2020.03.04 ]

• 2020 George Ellery Hale Prize Winner – Kazunari Shibata (Kyoto University)[ 2020.03.02 ]

• Title：The 1st Fumiko Yonezawa Memorial Prize to Dr. Hiroko Miyahara (Musashino Art University)[ 2020.02.25 ]

• International Symposium PSTEP-4 held[ 2020.02.17 ]

• The 4th PSTEP International Symposium (PSTEP-4)
  and the 2nd ISEE Symposium “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  (3rd announcement )[ 2020.01.27 ]

• Science Nuggets No.26 (20200122)
  
  Spectral Structures of Type II Solar Radio Bursts and Solar Energetic Particles[ 2020.01.22 ]

• The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  (2nd announcement)[ 2020.01.14 ]

• Science Nuggets No.25 (20191204)
  
  World’s First Modeling of Spontaneous Generation of Flare-productive Sunspots[ 2019.12.04 ]

• Warning System for Aviation Exposure to Solar Energetic Particles (WASAVIES)[ 2019.11.11 ]

• The 4th PSTEP International Symposium (PSTEP-4) and the 2nd ISEE Symposium
  “Toward the Solar-Terrestrial Environmental Prediction as Science and Social Infrastructure”
  (1st announcement)[ 2019.10.23 ]

• Science Nuggets No.24 (20190627)
  
  Detecting plasma bubbles by HF radio waves[ 2019.06.27 ]

• Science Nuggets No.23 (20190423)
  
  Development of a coronal mass ejection arrival time forecasting system using interplanetary scintillation observations[ 2019.04.24 ]

• Science Nuggets No.22 (20190401)
  
  Precursors of eruptions observed in the line-of-sight-velocity distributions of the filaments[ 2019.04.09 ]

• PSTEP Science Nuggets No.21 (20190328)
  
  A Tiny Magnetic Disturbance that Induce a Huge Solar Filament Eruption[ 2019.04.01 ]

• PSTEP Science Nuggets No.20 (20190227)
  
  Magnetohydrodynamic Simulation of the Largest Solar Flare Observed in Solar Cycle 24[ 2019.02.27 ]

• PSTEP Science Nuggets No.19 (20190108)
  
  A Comprehensive Numerical simulation from the base of the solar convection zone to the surface.[ 2019.01.08 ]

• PSTEP Science Nuggets No.18 (20190107)
  
  Correlation of Solar Flare Parameters and Sigmoid Structure with Coronal Mass Ejection[ 2019.01.07 ]

• PSTEP Science Nuggets No.17 (20180911)
  
  Why does auroral surge travel westward?[ 2018.09.11 ]

• PSTEP Science Nuggets No.16 (20180911)
  
  Energy goes into Earth in a spiral form[ 2018.09.11 ]

• PSTEP Science Nuggets No.15 (20180827)
  
  Solar Coronal Jets Extending to High Altitudes Observed During the 2017 August 21 Total Eclipse[ 2018.08.27 ]

• PSTEP Science Nuggets No.14 (20180809)
  
  Warning System for Aviation Exposure to Solar Energetic Particle (WASAVIES)[ 2018.08.09 ]

• PSTEP Science Nuggets No.13 (20180709)
  
  Study of the Magnetic Field Parameter to Predict Large Solar Flares[ 2018.07.09 ]

• PSTEP Science Nuggets No.12 (20180702)
  
  Dynamics of a solar eruptive flux rope[ 2018.07.02 ]

• PSTEP Science Nuggets No.11 (20180509)
  
  Prediction of occurrence of equatorial plasma bubbles using a whole atmosphere-ionosphere coupled model GAIA[ 2018.05.14 ]

• PSTEP Science Nuggets No.10 (20180501)
  
  Solar rotational cycle in lightning activity in Japan[ 2018.05.01 ]

• PSTEP Science Nuggets No.9 (20180417)
  
  Prediction of the Next Solar Cycle by the Surface Flux Transport Model[ 2018.04.18 ]

• PSTEP Science Nuggets No.8 (20180306)
  
  Ion hole formation and nonlinear generation of Electromagnetic Ion Cyclotron waves: THEMIS observations[ 2018.03.06 ]

• ISEE/PSTEP international workshop on “The Solar Cycle 25 Prediction Workshop in Nagoya”[ 2018.02.07 ]

• A new model of GIC flowing in the Japanese power grid for assessing the risks of severe space weather disturbances[ 2017.10.23 ]

• PSTEP Science Nuggets No.7 (20170821)
  
  Observation of energy storage process in a flare-productive quadrupole region[ 2017.08.21 ]

• PSTEP Science Nuggets No.6 (20170704)
  
  Novel Simulation Study toward the Numerical Prediction of Solar Flares[ 2017.07.04 ]

• PSTEP Science Nuggets No.5 (20170607)
  
  Thermal Non-equilibrium Plasma Observed by Hinode[ 2017.06.07 ]

• PSTEP Science meeting “Prospects of Modeling Studies for Solar-Terrestrial Environment Prediction”[ 2017.02.02 ]

• PSTEP Science Nuggets No.4 (20170111)
  
  Statistical Properties of Solar Active Regions that Produce Large Flares and Eruptions[ 2017.01.11 ]

• PSTEP Science Nuggets No.3 (20161110)
  
  Heliospheric plasma sheet (HPS) impingement onto the magnetosphere as a cause of relativistic electron dropouts (REDs) via coherent EMIC wave scattering with possible consequences for climate change mechanisms[ 2016.11.10 ]

• PSTEP Science Nuggets No.2 (20161019)
  
  Understanding of global-scale solar dynamo using large-scale numerical calculation.[ 2016.10.19 ]

• PSTEP Science Nuggets No.1 (20160927)
  
  Importance of the nonlinear phase trapping process for rapid flux enhancement of electron radiation belt in the geomagnetic field[ 2016.09.27 ]

• New imaging system for solar eruptions is now ready for operation at Hida observatory[ 2016.05.12 ]

• [Press Release] Super high resolution calculation using K computer reveals the generation mechanism for ordered magnetic field from chaos[ 2016.04.03 ]

• The 3rd Project Meeting at Shonan Village Center (March 4-5, 2016)[ 2016.03.07 ]

• [Press Release] Development of a new generation of numerical simulation of CME propagation for space weather prediction[ 2016.02.15 ]

• International Symposium PSTEP-1 (Jan 13-14, 2016)[ 2016.01.14 ]

• [Press Release] Auroral mystery solved: sudden bursts caused by swirling charged particles[ 2015.12.24 ]

• Workshop on Space Weather Forecast Method at NICT (2015.12.10)[ 2015.12.14 ]

• English page is opened[ 2015.10.16 ]