All Stories

  1. Poleward Disturbances in Thermospheric Winds During the 3–4 November 2021 Geomagnetic Storm

    Article • Journal of Geophysical Research Space Physics, February 2026, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  2. Guided Observations of Dynamic Shear Instability Layers over Antarctica (GODSILA) Field Campaign

    Article • November 2025, Wiley

    Yoshihiro Tomikawa

  3. Large‐Amplitude Inertia Gravity Waves Over Syowa Station: Comparison of PANSY Radar and ERA5 Reanalysis Data

    Article • Journal of Geophysical Research Atmospheres, November 2024, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  4. Large-amplitude Inertia Gravity Waves over Syowa Station: Comparison of PANSY Radar and ERA5 Reanalysis Data

    Article • November 2023, Wiley

    Yoshihiro Tomikawa

  5. Interhemispheric Coupling Study by Observations and Modelling (ICSOM): Concept, Campaigns, and Initial Results

    Article • Journal of Geophysical Research Atmospheres, June 2023, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  6. Characteristics of Gravity Wave Horizontal Phase Velocity Spectra in the Mesosphere Over the Antarctic Stations, Syowa and Davis

    Article • Journal of Geophysical Research Atmospheres, March 2023, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  7. Interhemispheric Coupling Study by Observations and Modelling (ICSOM)

    Article • December 2022, Wiley

    Yoshihiro Tomikawa

  8. Reduced error and uncertainty in analysis and forecasting in the Southern Hemisphere through assimilation of PANSY radar observations from Syowa Station: A midlatitude extreme cyclone case

    Article • Quarterly Journal of the Royal Meteorological Society, August 2022, Wiley

    Yoshihiro Tomikawa

  9. Propagation Direction Analyses of Medium‐Scale Traveling Ionospheric Disturbances Observed Over North America With GPS‐TEC Perturbation Maps by Three‐Dimensional Spectral Analysis Method

    Article • Journal of Geophysical Research Space Physics, January 2022, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  10. Mesospheric ionization during substorm growth phase

    Article • Journal of Space Weather and Space Climate, January 2022, EDP Sciences

    Yoshihiro Tomikawa

  11. Mesospheric Short‐Period Gravity Waves in the Antarctic Peninsula Observed in All‐Sky Airglow Images and Their Possible Source Locations

    Article • Journal of Geophysical Research Atmospheres, December 2021, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  12. Characteristics of gravity wave horizontal phase velocity spectra in the mesosphere over the Antarctic stations, Syowa and Davis.

    Article • September 2021, Wiley

    Yoshihiro Tomikawa

  13. First Direct Observational Evidence for Secondary Gravity Waves Generated by Mountain Waves Over the Andes

    Article • Geophysical Research Letters, September 2020, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  14. First Direct Observational Evidence for Secondary Gravity Waves Generated by Mountain Waves over the Andes

    Article • June 2020, Wiley

    Yoshihiro Tomikawa

  15. Wind filtering evidence of mesospheric short-period gravity waves revealed from all-sky images at King Sejong Station (62{degree sign}S, 59{degree sign}W)

    Article • June 2020, Wiley

    Yoshihiro Tomikawa

  16. Estimate of Turbulent Energy Dissipation Rate From the VHF Radar and Radiosonde Observations in the Antarctic

    Article • Journal of Geophysical Research Atmospheres, March 2019, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  17. Simultaneous Observations of Polar Mesosphere Winter Echoes and Cosmic Noise Absorptions in a Common Volume by the PANSY Radar (69.0°S, 39.6°E)

    Article • Journal of Geophysical Research Space Physics, June 2018, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  18. Effects of Horizontal Wind Structure on a Gravity Wave Event in the Middle Atmosphere Over Syowa (69° S, 40° E), the Antarctic

    Article • Geophysical Research Letters, May 2018, American Geophysical Union (AGU)

    Masaru Kogure, Yoshihiro Tomikawa

  19. Characteristics of mesospheric gravity waves over Antarctica observed by Antarctic Gravity Wave Instrument Network imagers using 3-D spectral analyses

    Article • Journal of Geophysical Research Atmospheres, September 2017, Wiley

    Yoshihiro Tomikawa

  20. Rayleigh/Raman lidar observations of gravity wave activity from 15 to 70 km altitude over Syowa (69°S, 40°E), the Antarctic

    Article • Journal of Geophysical Research Atmospheres, August 2017, American Geophysical Union (AGU)

    Masaru Kogure, Yoshihiro Tomikawa

  21. Quasi-12 h inertia–gravity waves in the lower mesosphere observed by the PANSY radar at Syowa Station (39.6° E, 69.0° S)

    Article • Atmospheric Chemistry and Physics", May 2017, Copernicus GmbH

    Yoshihiro Tomikawa

  22. Response of the Middle Atmosphere in the Southern Hemisphere to Energetic Particle Precipitation in the Latest Reanalysis Data

    Article • SOLA, January 2017, Meteorological Society of Japan

    Yoshihiro Tomikawa

  23. Three years of concentric gravity wave variability in the mesopause as observed by IMAP/VISI

    Article • Geophysical Research Letters, November 2016, Wiley

    Yoshihiro Tomikawa

  24. A mechanism to explain the variations of tropopause and tropopause inversion layer in the Arctic region during a sudden stratospheric warming in 2009

    Article • Journal of Geophysical Research Atmospheres, October 2016, Wiley

    Yoshihiro Tomikawa

  25. The stratospheric pathway for Arctic impacts on midlatitude climate

    Article • Geophysical Research Letters, April 2016, Wiley

    Yoshihiro Tomikawa

  26. Balloon-borne observations of lower stratospheric water vapor at Syowa Station, Antarctica in 2013

    Article • Polar Science, December 2015, Elsevier

    Yoshihiro Tomikawa

  27. Gravity wave transmission diagram

    Article • Annales Geophysicae, December 2015, Copernicus GmbH

    Yoshihiro Tomikawa

  28. Zonally uniform tidal oscillations in the tropical stratosphere

    Article • Geophysical Research Letters, November 2015, Wiley

    Yoshihiro Tomikawa

  29. A Study of Multiple Tropopause Structures Caused by Inertia–Gravity Waves in the Antarctic

    Article • Journal of the Atmospheric Sciences, May 2015, American Meteorological Society

    Yoshihiro Tomikawa

  30. Vertical Wind Disturbances during a Strong Wind Event Observed by the PANSY Radar at Syowa Station, Antarctica

    Article • Monthly Weather Review, May 2015, American Meteorological Society

    Yoshihiro Tomikawa

  31. Height and time characteristics of seasonal and diurnal variations in PMWE based on 1 year observations by the PANSY radar (69.0°S, 39.6°E)

    Article • Geophysical Research Letters, April 2015, Wiley

    Yoshihiro Tomikawa

  32. The capacity-building and science-enabling activities of the IUGONET for the solar-terrestrial research community

    Article • Earth Planets and Space, January 2015, Springer Science + Business Media

    Yoshihiro Tomikawa

  33. Article • IEICE Communications Society Magazine, January 2015, Institute of Electronics, Information and Communications Engineers (IEICE)

    Yoshihiro Tomikawa

  34. Program of the Antarctic Syowa MST/IS radar (PANSY)

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, October 2014, Elsevier

    Yoshihiro Tomikawa

  35. Simultaneous PMC and PMSE observations with a ground-based lidar and SuperDARN HF radar at Syowa Station, Antarctica

    Article • Annales Geophysicae, October 2013, Copernicus GmbH

    Yoshihiro Tomikawa

  36. Growth of planetary waves and the formation of an elevated stratopause after a major stratospheric sudden warming in a T213L256 GCM

    Article • Journal of Geophysical Research Atmospheres, August 2012, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  37. Persistence of Easterly Wind during Major Stratospheric Sudden Warmings

    Article • Journal of Climate, October 2010, American Meteorological Society

    Yoshihiro Tomikawa

  38. A meridional structure of static stability and ozone vertical gradient around the tropopause in the Southern Hemisphere extratropics

    Article • Atmospheric Chemistry and Physics Discussions, August 2010, Copernicus GmbH

    Yoshihiro Tomikawa

  39. Variations of OH rotational temperature over Syowa Station in the austral winter of 2008

    Article • Earth Planets and Space, August 2010, Springer Science + Business Media

    Yoshihiro Tomikawa

  40. Links between a stratospheric sudden warming and thermal structures and dynamics in the high-latitude mesosphere, lower thermosphere, and ionosphere

    Article • Geophysical Research Letters, July 2010, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  41. Transport and Mixing in the Extratropical Tropopause Region in a High-Vertical-Resolution GCM. Part I: Potential Vorticity and Heat Budget Analysis

    Article • Journal of the Atmospheric Sciences, May 2010, American Meteorological Society

    Yoshihiro Tomikawa

  42. Transport and Mixing in the Extratropical Tropopause Region in a High-Vertical-Resolution GCM. Part II: Relative Importance of Large-Scale and Small-Scale Dynamics

    Article • Journal of the Atmospheric Sciences, May 2010, American Meteorological Society

    Yoshihiro Tomikawa

  43. On the Three-Dimensional Residual Mean Circulation and Wave Activity Flux of the Primitive Equations

    Article • Journal of the Meteorological Society of Japan, January 2010, Meteorological Society of Japan

    Yoshihiro Tomikawa

  44. Ozone Enhanced Layers in the 2003 Antarctic Ozone Hole

    Article • Journal of the Meteorological Society of Japan, January 2010, Meteorological Society of Japan

    Yoshihiro Tomikawa

  45. On the origins of mesospheric gravity waves

    Article • Geophysical Research Letters, October 2009, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  46. Simulation of the eastward 4-day wave in the Antarctic winter mesosphere using a gravity wave resolving general circulation model

    Article • Journal of Geophysical Research Atmospheres, August 2009, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  47. Measurements of stratospheric ozone with a balloon-borne optical ozone sensor

    Article • International Journal of Remote Sensing, July 2009, Taylor & Francis

    Yoshihiro Tomikawa

  48. MF radar observations of the diurnal tide over Syowa, Antarctica (69° S, 40° E)

    Article • Annales Geophysicae, July 2009, Copernicus GmbH

    Yoshihiro Tomikawa

  49. Longitudinally Dependent Ozone Increase in the Antarctic Polar Vortex Revealed by Balloon and Satellite Observations

    Article • Journal of the Atmospheric Sciences, June 2009, American Meteorological Society

    Yoshihiro Tomikawa

  50. Characteristics of Tropopause and Tropopause Inversion Layer in the Polar Region

    Article • SOLA, January 2009, Meteorological Society of Japan

    Yoshihiro Tomikawa

  51. Development of Quartz Friction Gauge on Board Balloon and Sounding Rocket

    Article • TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES SPACE TECHNOLOGY JAPAN, January 2009, Japan Society for Aeronautical and Space Sciences

    Yoshihiro Tomikawa

  52. Wintertime temperature maximum at the subtropical stratopause in a T213L256 GCM

    Article • Journal of Geophysical Research Atmospheres, September 2008, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  53. General aspects of a T213L256 middle atmosphere general circulation model

    Article • Journal of Geophysical Research Atmospheres, June 2008, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  54. A Diagnostic Study of Waves on the Tropopause

    Article • Journal of the Atmospheric Sciences, December 2006, American Meteorological Society

    Yoshihiro Tomikawa

  55. A Neutral Wave Observed in the Antarctic Polar Vortex

    Article • Journal of the Meteorological Society of Japan, January 2006, Meteorological Society of Japan

    Yoshihiro Tomikawa

  56. Combined MU radar and ozonesonde measurements of turbulence and ozone fluxes in the tropo-stratosphere over Shigaraki, Japan

    Article • Geophysical Research Letters, January 2006, American Geophysical Union (AGU)

    Yoshihiro Tomikawa

  57. Arctic Study of Tropospheric Aerosol and Radiation (ASTAR) 2000: Arctic haze case study

    Article • Tellus B, April 2005, Taylor & Francis

    Yoshihiro Tomikawa

  58. Ozonesonde observations in the Indonesian maritime continent: a case study on ozone rich layer in the equatorial upper troposphere

    Article • Atmospheric Environment, January 2003, Elsevier

    Yoshihiro Tomikawa

  59. Formation of an ozone lamina due to differential advection revealed by intensive observations

    Article • Journal of Geophysical Research Atmospheres, May 2002, American Geophysical Union (AGU)

    Yoshihiro Tomikawa