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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 35 7516 6956 478 472 269 5707

Sidao Ni publications per year

The chart shows the history of publications by Sidao Ni between 1998 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sidao Ni published across 28 years, from 1998 to 2025, averaging 10.5 papers a year. Output peaked at 21 publications in 2018. 38 of the 295 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1998 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2018. 1998: 2 publications 1999: 1 publication 2000: 2 publications 2001: 6 publications 2002: 3 publications 2003: 7 publications 2004: 3 publications 2005: 9 publications 2006: 7 publications 2007: 3 publications 2008: 7 publications 2009: 14 publications 2010: 15 publications 2011: 17 publications 2012: 13 publications 2013: 12 publications 2014: 12 publications 2015: 15 publications 2016: 12 publications 2017: 18 publications 2018: 21 publications 2019: 15 publications 2020: 14 publications 2021: 6 publications 2022: 5 publications 2023: 18 publications 2024: 17 publications 2025: 21 publications
1998 2025

295 publications in total across all disciplines

View publications per year as a table
Sidao Ni: publications per year, 1998 to 2025
Year Publications
1998 2
1999 1
2000 2
2001 6
2002 3
2003 7
2004 3
2005 9
2006 7
2007 3
2008 7
2009 14
2010 15
2011 17
2012 13
2013 12
2014 12
2015 15
2016 12
2017 18
2018 21
2019 15
2020 14
2021 6
2022 5
2023 18
2024 17
2025 21
Total 295
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Sidao Ni 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 Sidao Ni 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, 268–277 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: 269 publications — 82nd percentile

82% 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
268–277 147 269
278–287 128
288–297 119
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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Sidao Ni 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 Sidao Ni 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, 35 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: 35 D-Index — 19th percentile

19% 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 35
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
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

Sidao Ni is affiliated with the Chinese Academy of Sciences in China and has an extensive research record in Earth and Planetary Sciences, with a focus on Geophysics and related subfields. Their work covers a broad range of topics centered on earthquake and tectonic studies, high-pressure geophysics, seismic wave analysis, and seismic imaging techniques.

Their publication topics include:

  • earthquake and tectonic studies
  • High-pressure geophysics and materials
  • Seismic Waves and Analysis
  • Earthquake Detection and Analysis
  • Geological and Geochemical Analysis
  • Seismology and Earthquake Studies
  • Seismic Imaging and Inversion Techniques

Frequent co-authors in Sidao Ni's work are:

  • Risheng Chu
  • Baolong Zhang
  • Daoyuan Sun
  • Wenbo Wu
  • Zhongqing Wu

Sidao Ni has published regularly in several scientific venues, reflecting engagement with both geophysical research and seismological studies. Regular publication venues include:

  • Journal of Geophysical Research Solid Earth
  • Seismological Research Letters
  • Geophysical Journal International
  • Bulletin of the Seismological Society of America
  • Geophysical Research Letters

Recent papers authored or co-authored by Sidao Ni demonstrate a focus on seismic phenomena, tectonics, and mantle studies:

  • Complexities of the Turkey-Syria doublet earthquake sequence (2023, The Innovation)
  • Detections of ultralow velocity zones in high-velocity lowermost mantle linked to subducted slabs (2024, Nature Geoscience)
  • Velocity and density characteristics of subducted oceanic crust and the origin of lower-mantle heterogeneities (2020, Nature Communications)
  • Source Parameters of Three Moderate Size Earthquakes in Weiyuan, China, and Their Relations to Shale Gas Hydraulic Fracturing (2020, Journal of Geophysical Research Solid Earth)
  • Rupture Directivity of the 2019 Mw 5.8 Changning, Sichuan, China, Earthquake and Implication for Induced Seismicity (2020, Bulletin of the Seismological Society of America)

The researcher's work includes detailed investigations into seismic wave behavior and earthquake source parameters, as well as studies on the geophysical properties of Earth's mantle related to subducted slabs. This research contributes data relevant to understanding seismic hazards and geological processes.

Sidao Ni's expertise spans artificial intelligence applications in geophysics, electrical and electronic engineering aspects related to geophysical instrumentation, atmospheric science, and aerospace engineering, reflecting multidisciplinary approaches in their research portfolio.

Best Publications

  • Rupture Process of the 2004 Sumatra-Andaman Earthquake

    Charles J. Ammon;Chen Ji;Hong-Kie Thio;David Robinson

  • Sharp sides to the African superplume.

    Sidao Ni;Eh Tan;Michael Gurnis;Don Helmberger

  • Source mechanism of strong aftershocks (Ms≥5.6) of the 2008/05/12 Wenchuan earthquake and the implication for seismotectonics

    Yong Zheng;Hong Sheng Ma;Jian Lü;Si Dao Ni

  • Seismology: Energy radiation from the Sumatra earthquake

    Sidao Ni;Sidao Ni;Hiroo Kanamori;Don Helmberger

  • Evidence for strong shear velocity reductions and velocity gradients in the lower mantle beneath Africa

    Jeroen Ritsema;Sidao Ni;Donald V. Helmberger;H. Philip Crotwell

  • Retrieval of Moho‐reflected shear wave arrivals from ambient seismic noise

    Zhongwen Zhan;Zhongwen Zhan;Sidao Ni;Don V. Helmberger;Robert W. Clayton

  • Seismological constraints on the South African superplume; could be the oldest distinct structure on earth

    Sidao Ni;Don V. Helmberger

  • The Pawnee earthquake as a result of the interplay among injection, faults and foreshocks.

    Xiaowei Chen;Nori Nakata;Colin Pennington;Jackson Haffener

  • Shallow magma chamber under the Wudalianchi Volcanic Field unveiled by seismic imaging with dense array

    Zhiwei Li;Sidao Ni;Baolong Zhang;Feng Bao

  • Three-dimensional structure of the African superplume from waveform modelling

    Sidao Ni;Sidao Ni;Don V. Helmberger;Jeroen Tromp

  • A persistent localized microseismic source near the Kyushu Island, Japan

    Xiangfang Zeng;Sidao Ni

  • Ridge‐like lower mantle structure beneath South Africa

    Sidao Ni;Don V. Helmberger

  • Velocity and density characteristics of subducted oceanic crust and the origin of lower-mantle heterogeneities

    Wenzhong Wang;Yinhan Xu;Daoyuan Sun;Daoyuan Sun;Sidao Ni

  • Uppermost mantle structure of the eastern margin of the Tibetan plateau from interstation Pn traveltime difference tomography

    Zhiwei Li;Sidao Ni;Tianyao Hao;Yi Xu

  • Seismic evidence for ultralow‐velocity zones beneath Africa and eastern Atlantic

    Don Helmberger;Sidao Ni;Lianxing Wen;Jeroen Ritsema

  • A shallow aftershock sequence in the north-eastern end of the Wenchuan earthquake aftershock zone

    Yan Luo;Yan Luo;Si Dao Ni;Xiang Fang Zeng;Yong Zheng

  • Evidence for a sharp lateral variation of velocity at the core–mantle boundary from multipathed PKPab

    Sheng-Nian Luo;Sidao Ni;Donald V. Helmberger

  • Focal Mechanisms of the 2013 Mw 6.6 Lushan, China Earthquake and High‐Resolution Aftershock Relocations

    Libo Han;Xiangfang Zeng;Changsheng Jiang;Sidao Ni

  • Constructing synthetics from deep earth tomographic models

    Sidao Ni;Xiaoming Ding;Don V. Helmberger

  • Wave separation for the great Sumatra-Andaman earthquake with regional seismic array

    Chunyan Zhang;Sidao Ni

  • Deep mantle structure and the postperovskite phase transition

    D. Helmberger;T. Lay;S. Ni;M. Gurnis

  • Seismic evidence for ultralow-velocity zones beneath Africa and

    Don Helmberger;Sidao Ni;Lianxing Wen;Jeroen Ritsema

Frequent Co-Authors

Donald V. Helmberger
Donald V. Helmberger California Institute of Technology
Zhongwen Zhan
Zhongwen Zhan California Institute of Technology
Shengji Wei
Shengji Wei Nanyang Technological University
Yong Zheng
Yong Zheng Chinese Academy of Sciences
Paul Somerville
Paul Somerville Aecom (United States)
Hiroo Kanamori
Hiroo Kanamori California Institute of Technology
David A. Yuen
David A. Yuen Columbia University
Weitao Wang
Weitao Wang Sun Yat-sen University
Renata M. Wentzcovitch
Renata M. Wentzcovitch Columbia University
Sheng-Nian Luo
Sheng-Nian Luo Southwest Jiaotong University

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