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Earth Science
Taiwan
2026

D-Index & Metrics

Earth Science

D-Index
64
Citations
14805
World Ranking
1486
National Ranking
4

Research.com Recognitions

  • 2026 - Research.com Earth Science in Taiwan Leader Award
  • 2025 - Research.com Earth Science in Taiwan Leader Award
  • 2022 - Research.com Earth Science in Taiwan Leader Award

Overview

Jann-Yenq Liu is affiliated with National Central University in Taiwan and has a research focus broadly in Earth and Planetary Sciences and Physics and Astronomy. Their work emphasizes subfields including Geophysics, Astronomy and Astrophysics, Aerospace Engineering, Molecular Biology, and Atmospheric Science.

The scholar's research topics cover a range of subjects, primarily centered on ionospheric and magnetospheric dynamics, earthquake detection and analysis, solar and space plasma dynamics, seismic wave analysis, GNSS positioning and interference, earthquake and tectonic studies, and geomagnetism and paleomagnetism studies.

They have published extensively in journals such as:

  • Journal of Geophysical Research Space Physics (14 publications)
  • Advances in Space Research (11 publications)
  • Terrestrial Atmospheric and Oceanic Sciences (8 publications)
  • Geophysical Research Letters (7 publications)
  • Remote Sensing (6 publications)

Frequent collaborators in their research include Chien-Hung Lin, Chieh-Hung Chen, Yang-Yi Sun, Loren C. Chang, and C. Y. Lin.

Some recent notable papers authored by or involving Jann-Yenq Liu are:

  • "Rapid Conjugate Appearance of the Giant Ionospheric Lamb Wave Signatures in the Northern Hemisphere After Hunga-Tonga Volcano Eruptions," 2022, Geophysical Research Letters
  • "The Early Results and Validation of FORMOSAT-7/COSMIC-2 Space Weather Products: Global Ionospheric Specification and Ne-Aided Abel Electron Density Profile," 2020, Journal of Geophysical Research Space Physics
  • "Extreme Poleward Expanding Super Plasma Bubbles Over Asia-Pacific Region Triggered by Tonga Volcano Eruption During the Recovery-Phase of Geomagnetic Storm," 2022, Geophysical Research Letters
  • "Atmospheric and ionospheric coupling phenomena associated with large earthquakes," 2021, The European Physical Journal Special Topics
  • "Individual Wave Propagations in Ionosphere and Troposphere Triggered by the Hunga Tonga-Hunga Ha'apai Underwater Volcano Eruption on 15 January 2022," 2022, Remote Sensing

The scope of research undertaken by Jann-Yenq Liu involves investigations into ionospheric and atmospheric coupling processes, space weather product validation, and the impact of geophysical events such as volcanic eruptions and geomagnetic storms on plasma dynamics and seismic wave propagation.

Best Publications

  • Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measurements

    J. Y. Liu;Y. J. Chuo;S. J. Shan;Y. B. Tsai

  • A statistical investigation of preearthquake ionospheric anomaly

    J. Y. Liu;Y. I. Chen;Y. J. Chuo;C. S. Chen

  • Seismo‐ionospheric signatures prior to M≥6.0 Taiwan earthquakes

    J. Y. Liu;Y. I. Chen;S. A. Pulinets;Y. B. Tsai

  • Variations of ionospheric total electron content during the Chi-Chi earthquake

    J. Y. Liu;Y. I. Chen;Y. J. Chuo;H. F. Tsai

  • Seismoionospheric GPS total electron content anomalies observed before the 12 May 2008 Mw7.9 Wenchuan earthquake

    Jann-Yenq Liu;Y. I. Chen;Chia-Hung Chen;C. Y. Liu

  • Theoretical study of the low- and midlatitude ionospheric electron density enhancement during the October 2003 superstorm: Relative importance of the neutral wind and the electric field

    C. H. Lin;C. H. Lin;A. D. Richmond;R. A. Heelis;G. J. Bailey

  • Ionospheric disturbances triggered by the 11 March 2011 M9.0 Tohoku earthquake

    Jann Yenq Liu;Jann Yenq Liu;Chia Hung Chen;Chien Hung Lin;Ho Fang Tsai

  • Giant ionospheric disturbances excited by the M9.3 Sumatra earthquake of 26 December 2004

    J. Y. Liu;Y. B. Tsai;S. W. Chen;C. P. Lee

  • A statistical analysis of ionospheric anomalies before 736 M6.0+ earthquakes during 2002-2010

    H. Le;H. Le;J. Y. Liu;L. Liu

  • Rapid Conjugate Appearance of the Giant Ionospheric Lamb Wave Signatures in the Northern Hemisphere After Hunga‐Tonga Volcano Eruptions

    Unknown

  • Plausible effect of atmospheric tides on the equatorial ionosphere observed by the FORMOSAT‐3/COSMIC: Three‐dimensional electron density structures

    C. H. Lin;W. Wang;M. E. Hagan;C. C. Hsiao

  • Motions of the equatorial ionization anomaly crests imaged by FORMOSAT-3/COSMIC

    C. H. Lin;J. Y. Liu;T. W. Fang;T. W. Fang;P. Y. Chang

  • Longitudinal structure of the equatorial ionosphere: Time evolution of the four-peaked EIA structure

    C. H. Lin;C. C. Hsiao;J. Y. Liu;C. H. Liu

  • Ionospheric GPS total electron content (TEC) disturbances triggered by the 26 December 2004 Indian Ocean tsunami

    Jann Yenq Liu;Yi Ben Tsai;Kuo Fong Ma;Yuh Ing Chen

  • Coseismic ionospheric disturbances triggered by the Chi-Chi earthquake

    J. Y. Liu;H. F. Tsai;C. H. Lin;M. Kamogawa

  • Midlatitude summer nighttime anomaly of the ionospheric electron density observed by FORMOSAT‐3/COSMIC

    C. H. Lin;C. H. Liu;J. Y. Liu;C. H. Chen

  • Concentric traveling ionosphere disturbances triggered by Super Typhoon Meranti (2016)

    Min Yang Chou;Charles C. H. Lin;Jia Yue;Jia Yue;Ho Fang Tsai

  • Observations and simulations of seismoionospheric GPS total electron content anomalies before the 12 January 2010 M7 Haiti earthquake

    J. Y. Liu;H. Le;H. Le;Y. I. Chen;C. H. Chen

  • Total Electron Content Obtained by Using the Global Positioning System

    Jann Yenq Liu;Ho Fang Tsai;Ting Kuo Jung

  • Statistical analysis of ULF seismomagnetic phenomena at Kakioka, Japan, during 2001–2010

    Peng Han;Katsumi Hattori;Maiko Hirokawa;Jiancang Zhuang

  • Annual TEC variation in the equatorial anomaly region during the solar minimum: September 1996–August 1997

    Chin-Chun Wu;C. D. Fry;J. Y. Liu;K. Liou

  • Seasonal variations of the ionospheric total electron content in Asian equatorial anomaly regions

    Ho Fang Tsai;Jann Yenq Liu;Wei Hsiung Tsai;Chao Han Liu

Frequent Co-Authors

Chia-Hung Chen
Chia-Hung Chen National Cheng Kung University
Katsumi Hattori
Katsumi Hattori Chiba University
Chung-Ho Wang
Chung-Ho Wang National Chung Hsing University
Sergey Pulinets
Sergey Pulinets Russian Academy of Sciences
Arthur D. Richmond
Arthur D. Richmond National Center for Atmospheric Research
Michel Parrot
Michel Parrot Centre national de la recherche scientifique, CNRS
Jan Laštovička
Jan Laštovička Czech Academy of Sciences
Wenbin Wang
Wenbin Wang National Center for Atmospheric Research
Shigeto Watanabe
Shigeto Watanabe Hokkaido Information University
N. Balan
N. Balan National Central University

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