World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Physics 81 2968 2818 1446 1347 384 19115
Earth Science 80 547 481 277 234 340 18613

Jacob Bortnik publications per year

The chart shows the history of publications by Jacob Bortnik between 2001 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Jacob Bortnik published across 26 years, from 2001 to 2026, averaging 20.8 papers a year. Output peaked at 56 publications in 2022. 43 of the 541 publications appeared in the last two years.

No. of publications
10 20 30 40 50
Bar chart. Horizontal axis: year, 2001 to 2026. Vertical axis: number of publications, 0 to 56. Peak 56 publications in 2022. 2001: 2 publications 2002: 2 publications 2003: 3 publications 2004: 0 publications 2005: 1 publication 2006: 8 publications 2007: 7 publications 2008: 10 publications 2009: 9 publications 2010: 13 publications 2011: 17 publications 2012: 15 publications 2013: 24 publications 2014: 31 publications 2015: 28 publications 2016: 39 publications 2017: 22 publications 2018: 25 publications 2019: 31 publications 2020: 36 publications 2021: 28 publications 2022: 56 publications 2023: 54 publications 2024: 37 publications 2025: 38 publications 2026: 5 publications
2001 2026

541 publications in total across all disciplines

View publications per year as a table
Jacob Bortnik: publications per year, 2001 to 2026
Year Publications
2001 2
2002 2
2003 3
2004 0
2005 1
2006 8
2007 7
2008 10
2009 9
2010 13
2011 17
2012 15
2013 24
2014 31
2015 28
2016 39
2017 22
2018 25
2019 31
2020 36
2021 28
2022 56
2023 54
2024 37
2025 38
2026 5
Total 541
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Jacob Bortnik 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 Jacob Bortnik 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, 338–347 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: 340 publications — 91st percentile

91% 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
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64 340
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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Jacob Bortnik 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 Jacob Bortnik 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, 80 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: 80 D-Index — 94th percentile

94% 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
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 80
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

Jacob Bortnik is affiliated with the University of California, Los Angeles in the United States. Their research primarily spans the fields of Physics and Astronomy as well as Earth and Planetary Sciences, with a focus on the subfields of Astronomy and Astrophysics, Geophysics, Molecular Biology, Atmospheric Science, and Global and Planetary Change.

Their work covers multiple topics in Earth and space sciences. These include:

  • Ionosphere and magnetosphere dynamics
  • Solar and Space Plasma Dynamics
  • Earthquake Detection and Analysis
  • Geomagnetism and Paleomagnetism Studies
  • Astro and Planetary Science
  • Lightning and Electromagnetic Phenomena
  • Seismic Waves and Analysis

Jacob Bortnik has published extensively in several venues, frequently contributing to:

  • Journal of Geophysical Research Space Physics
  • Geophysical Research Letters
  • Space Weather
  • Zenodo (CERN European Organization for Nuclear Research)
  • arXiv (Cornell University)

Recent publications illustrate the range and relevance of Bortnik's research. Notable papers include:

  • "Diurnal and Seasonal Dynamics of Solar-Induced Chlorophyll Fluorescence, Vegetation Indices, and Gross Primary Productivity in the Boreal Forest" (2022) in the Journal of Geophysical Research Biogeosciences
  • "Global Model of Whistler Mode Chorus in the Near-Equatorial Region (|λm|< 18°)" (2020) in Geophysical Research Letters
  • "The Characteristics of EMIC Waves in the Magnetosphere Based on the Van Allen Probes and Arase Observations" (2021) in Journal of Geophysical Research Space Physics
  • "Relativistic Electron Model in the Outer Radiation Belt Using a Neural Network Approach" (2021) in Space Weather
  • "The Electric and Magnetic Fields Instrument Suite and Integrated Science (EMFISIS): Science, Data, and Usage Best Practices" (2023) in Space Science Reviews

Collaborations with other researchers form an integral part of Bortnik's publication record. Frequent coauthors include:

  • Qianli Ma (44 joint publications)
  • Xiangning Chu (25 joint publications)
  • Xiao-Jia Zhang (25 joint publications)
  • Anton Artemyev (24 joint publications)
  • Wen Li (23 joint publications)

Best Publications

  • Rapid local acceleration of relativistic radiation-belt electrons by magnetospheric chorus

    R. M. Thorne;W Li;B Ni;Q. Ma

  • Resonant scattering of plasma sheet electrons by whistler-mode chorus: Contribution to diffuse auroral precipitation

    Binbin Ni;Richard M. Thorne;Yuri Y. Shprits;Jacob Bortnik

  • The unexpected origin of plasmaspheric hiss from discrete chorus emissions.

    Jacob Bortnik;Richard M. Thorne;Nigel P. Meredith

  • Global distribution of whistler‐mode chorus waves observed on the THEMIS spacecraft

    W. Li;R. M. Thorne;V. Angelopoulos;J. Bortnik

  • Identifying the Driver of Pulsating Aurora

    Y. Nishimura;Y. Nishimura;J. Bortnik;W. Li;R. M. Thorne

  • Observations of relativistic electron microbursts in association with VLF chorus

    K. R. Lorentzen;J. B. Blake;U. S. Inan;J. Bortnik

  • Global distribution of wave amplitudes and wave normal angles of chorus waves using THEMIS wave observations

    W. Li;J. Bortnik;R. M. Thorne;V. Angelopoulos

  • THEMIS observations of electromagnetic ion cyclotron wave occurrence: Dependence on AE, SYMH, and solar wind dynamic pressure

    M. E. Usanova;I. R. Mann;J. Bortnik;J. Bortnik;L. Shao

  • Nonlinear interaction of energetic electrons with large amplitude chorus

    J. Bortnik;R. M. Thorne;U. S. Inan

  • Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm

    W. Li;R. M. Thorne;Q. Ma;B. Ni

  • The dual role of ELF/VLF chorus waves in the acceleration and precipitation of radiation belt electrons

    J. Bortnik;R.M. Thorne

  • Resonant scattering and resultant pitch angle evolution of relativistic electrons by plasmaspheric hiss

    Binbin Ni;Jacob Bortnik;Richard M. Thorne;Qianli Ma

  • Resonant scattering of outer zone relativistic electrons by multiband EMIC waves and resultant electron loss time scales

    Binbin Ni;Xing Cao;Zhengyang Zou;Chen Zhou

  • An Observation Linking the Origin of Plasmaspheric Hiss to Discrete Chorus Emissions

    J. Bortnik;W. Li;R. M. Thorne;V. Angelopoulos

  • Statistical properties of plasmaspheric hiss derived from Van Allen Probes data and their Effects on radiation belt electron dynamics

    W. Li;Q. Ma;R. M. Thorne;J. Bortnik

  • Observation of two distinct, rapid loss mechanisms during the 20 November 2003 radiation belt dropout event

    J. Bortnik;R. M. Thorne;T. P. O'Brien;J. C. Green

  • THEMIS analysis of observed equatorial electron distributions responsible for the chorus excitation

    W. Li;R. M. Thorne;Y. Nishimura;Y. Nishimura;J. Bortnik

  • Evolution and slow decay of an unusual narrow ring of relativistic electrons near L~3.2 following the September 2012 magnetic storm

    R. M. Thorne;W. Li;B. Ni;Q. Ma

  • Origins of the Earth’s Diffuse Auroral Precipitation

    Binbin Ni;Richard M. Thorne;Xiaojia Zhang;Jacob Bortnik

  • Constructing the global distribution of chorus wave intensity using measurements of electrons by the POES satellites and waves by the Van Allen Probes

    W. Li;B. Ni;R. M. Thorne;J. Bortnik

  • Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm

    R. M. Thorne;W. Li;Q. Ma;B. Ni

Frequent Co-Authors

Richard M. Thorne
Richard M. Thorne University of California, Los Angeles
Vassilis Angelopoulos
Vassilis Angelopoulos University of California, Los Angeles
Craig Kletzing
Craig Kletzing University of Iowa
Harlan E. Spence
Harlan E. Spence University of New Hampshire
William S. Kurth
William S. Kurth University of Iowa
Yukitoshi Nishimura
Yukitoshi Nishimura Boston University
Geoffrey D. Reeves
Geoffrey D. Reeves Los Alamos National Laboratory
Daniel N. Baker
Daniel N. Baker University of Colorado Boulder
Richard B. Horne
Richard B. Horne British Antarctic Survey
J. B. Blake
J. B. Blake The Aerospace Corporation

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