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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 57 2334 2117 977 863 289 8761

Shinichi Ohtani publications per year

The chart shows the history of publications by Shinichi Ohtani between 1986 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Shinichi Ohtani published across 40 years, from 1986 to 2025, averaging 8.7 papers a year. Output peaked at 21 publications in 2002. 21 of the 347 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1986 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2002. 1986: 1 publication 1987: 0 publications 1988: 1 publication 1989: 3 publications 1990: 2 publications 1991: 1 publication 1992: 5 publications 1993: 3 publications 1994: 3 publications 1995: 9 publications 1996: 4 publications 1997: 2 publications 1998: 10 publications 1999: 5 publications 2000: 11 publications 2001: 13 publications 2002: 21 publications 2003: 11 publications 2004: 18 publications 2005: 10 publications 2006: 11 publications 2007: 11 publications 2008: 6 publications 2009: 14 publications 2010: 15 publications 2011: 10 publications 2012: 7 publications 2013: 14 publications 2014: 12 publications 2015: 11 publications 2016: 11 publications 2017: 10 publications 2018: 11 publications 2019: 12 publications 2020: 12 publications 2021: 7 publications 2022: 8 publications 2023: 11 publications 2024: 10 publications 2025: 11 publications
1986 2025

347 publications in total across all disciplines

View publications per year as a table
Shinichi Ohtani: publications per year, 1986 to 2025
Year Publications
1986 1
1987 0
1988 1
1989 3
1990 2
1991 1
1992 5
1993 3
1994 3
1995 9
1996 4
1997 2
1998 10
1999 5
2000 11
2001 13
2002 21
2003 11
2004 18
2005 10
2006 11
2007 11
2008 6
2009 14
2010 15
2011 10
2012 7
2013 14
2014 12
2015 11
2016 11
2017 10
2018 11
2019 12
2020 12
2021 7
2022 8
2023 11
2024 10
2025 11
Total 347
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Shinichi Ohtani publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Shinichi Ohtani sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 288–297 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 289 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119 289
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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Shinichi Ohtani D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Shinichi Ohtani sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 57 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 57 D-Index — 76th percentile

76% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120 57
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Overview

Shinichi Ohtani is affiliated with the Johns Hopkins University Applied Physics Laboratory in the United States. Their research primarily spans the field of Physics and Astronomy, with a focus on several interconnected subfields including Astronomy and Astrophysics, Molecular Biology, Geophysics, Biophysics, and Electrical and Electronic Engineering.

Their scholarly output includes a significant number of publications, particularly in topics related to ionospheric and magnetospheric dynamics, solar and space plasma dynamics, geomagnetism and paleomagnetism studies, earthquake detection and analysis, astro and planetary science, electromagnetic fields and biological effects, and wireless body area networks.

Among their recent published papers are:

  • Ballooning-Interchange Instability in the Near-Earth Plasma Sheet and Auroral Beads: Global Magnetospheric Modeling at the Limit of the MHD Approximation (2020, Geophysical Research Letters)
  • Is the Substorm Current Wedge an Ensemble of Wedgelets?: Revisit to Midlatitude Positive Bays (2020, Journal of Geophysical Research Space Physics)
  • SECS Analysis of Nighttime Magnetic Perturbation Events Observed in Arctic Canada (2021, Journal of Geophysical Research Space Physics)
  • Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 3. Occurrence and Amplitude as Functions of Magnetic Latitude, Local Time, and Magnetic Disturbance Indices (2021, Space Weather)
  • Multiscale Magnetosphere-Ionosphere Coupling During Stormtime: A Case Study of the Dawnside Current Wedge (2023, Journal of Geophysical Research Space Physics)

Their frequent co-authors include:

  • J. W. Gjerloev (12 collaborative works)
  • T. Motoba (8 collaborative works)
  • Keiji Wãda (7 collaborative works)
  • Yukihisa Suzuki (7 collaborative works)
  • Kenji Hattori (7 collaborative works)

Shinichi Ohtani's research is frequently published in the following venues:

  • Journal of Geophysical Research Space Physics (23 publications)
  • Geophysical Research Letters (4 publications)
  • Space Weather (3 publications)
  • Journal of Radiation Research (2 publications)
  • Japanese Journal of Transfusion and Cell Therapy (2 publications)

The main topics of their work span:

  • Ionosphere and magnetosphere dynamics
  • Solar and Space Plasma Dynamics
  • Geomagnetism and Paleomagnetism Studies
  • Earthquake Detection and Analysis
  • Astro and Planetary Science
  • Electromagnetic Fields and Biological Effects
  • Wireless Body Area Networks

Ohtani's interdisciplinary approach integrates multiple scientific areas, reflecting a broad scope within physical sciences and engineering, contributing to the understanding of space physics phenomena as well as intersecting biological and technological research areas.

Best Publications

  • The double oval UV auroral distribution. 1: Implications for the mapping of auroral arcs

    R. D. Elphinstone;J. S. Murphree;D. J. Hearn;L. L. Cogger

  • Temporal structure of the fast convective flow in the plasma sheet: Comparison between observations and two-fluid simulations

    Shin-ichi Ohtani;Michael A. Shay;Toshifumi Mukai

  • Radial expansion of the tail current disruption during substorms: A new approach to the substorm onset region

    S. Ohtani;S. Kokubun;C. T. Russell

  • Initial signatures of magnetic field and energetic particle fluxes at tail reconfiguration : explosive growth phase

    S. Ohtani;K. Takahashi;L. J. Zanetti;T. A. Potemra

  • Global ENA observations of the storm mainphase ring current: Implications for skewed electric fields in the inner magnetosphere

    P. C:son Brandt;S. Ohtani;D. G. Mitchell;M.-C. Fok

  • Statistical analysis of Pi 2 pulsations observed by the AMPTE CCE Spacecraft in the inner magnetosphere

    Kazue Takahashi;Shin-ichi Ohtani;Brian J. Anderson

  • Ballooning instability and structure of diamagnetic hydromagnetic waves in a model magnetosphere

    A. Miura;S. Ohtani;T. Tamao

  • Does the ballooning instability trigger substorms in the near-Earth magnetotail?

    Shin-Ichi Ohtani;Tsutomu Tamao

  • Observations in the vicinity of substorm onset: Implications for the substorm process

    R. D. Elphinstone;D. J. Hearn;L. L. Cogger;J. S. Murphree

  • Storm‐substorm relationship: Contribution of the tail current to Dst

    S. Ohtani;M. Nosé;G. Rostoker;H. Singer

  • Effects of the fast plasma sheet flow on the geosynchronous magnetic configuration : Geotail and GOES coordinated study

    S. Ohtani;H. J. Singer;T. Mukai

  • Magnetospheric Current Systems

    Shin-Ichi Ohtani;Ryoichi Fujii;Michael Hesse;Robert L. Lysak

  • Field‐aligned current signatures in the near‐tail region: 1. ISEE observations in the plasma sheet boundary layer

    S. Ohtani;S. Kokubun;R. C. Elphic;C. T. Russell

  • High‐resolution global magnetohydrodynamic simulation of bursty bulk flows

    M. Wiltberger;V. Merkin;J. G. Lyon;S. Ohtani

  • Auroral streamers: characteristics of associated precipitation, convection and field-aligned currents

    V. A. Sergeev;K. Liou;P. T. Newell;S.-I. Ohtani

  • A multisatellite study of a Pseudo-substorm onset in the near-earth magnetotail

    S. Ohtani;B. J. Anderson;D. G. Sibeck;P. T. Newell

  • Substorm onset timing: The December 31, 1995, event

    S. Ohtani;F. Creutzberg;T. Mukai;H. Singer

  • AMPTE/CCE‐SCATHA simultaneous observations of substorm‐associated magnetic fluctuations

    S. Ohtani;K. Takahashi;T. Higuchi;A. T. Y. Lui

  • Magnetic fluctuations associated with tail current disruption: Fractal analysis

    S. Ohtani;T. Higuchi;A. T. Y. Lui;K. Takahashi

  • Ballooning‐interchange instability in the near‐Earth plasma sheet and auroral beads: Global magnetospheric modeling at the limit of the MHD approximation

    K. A. Sorathia;V. G. Merkin;E. V. Panov;B. Zhang;B. Zhang

  • Evaluation of low-latitude Pi2 pulsations as indicators of substorm onset using Polar ultraviolet imagery

    K. Liou;C.-I. Meng;P. T. Newell;K. Takahashi

Frequent Co-Authors

Jesper Gjerloev
Jesper Gjerloev Johns Hopkins University Applied Physics Laboratory
Kazue Takahashi
Kazue Takahashi Johns Hopkins University Applied Physics Laboratory
Patrick T. Newell
Patrick T. Newell Johns Hopkins University Applied Physics Laboratory
Brian J. Anderson
Brian J. Anderson Johns Hopkins University Applied Physics Laboratory
Howard J. Singer
Howard J. Singer National Weather Service
Yusuke Ebihara
Yusuke Ebihara Kyoto University
Simon Wing
Simon Wing Johns Hopkins University Applied Physics Laboratory
Thomas A. Potemra
Thomas A. Potemra Johns Hopkins University Applied Physics Laboratory
Susumu Kokubun
Susumu Kokubun Nagoya University
Toshifumi Mukai
Toshifumi Mukai Japan Aerospace Exploration Agency

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