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Earth Science
Turkey
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 42 5172 4779 9 6 119 8067

Sinan Akkar publications per year

The chart shows the history of publications by Sinan Akkar between 1999 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sinan Akkar published across 27 years, from 1999 to 2025, averaging 4.8 papers a year. Output peaked at 19 publications in 2014. 2 of the 129 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1999 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2014. 1999: 1 publication 2000: 0 publications 2001: 1 publication 2002: 2 publications 2003: 4 publications 2004: 1 publication 2005: 8 publications 2006: 3 publications 2007: 4 publications 2008: 4 publications 2009: 2 publications 2010: 5 publications 2011: 9 publications 2012: 9 publications 2013: 6 publications 2014: 19 publications 2015: 3 publications 2016: 2 publications 2017: 9 publications 2018: 12 publications 2019: 5 publications 2020: 3 publications 2021: 10 publications 2022: 1 publication 2023: 4 publications 2024: 1 publication 2025: 1 publication
1999 2025

129 publications in total across all disciplines

View publications per year as a table
Sinan Akkar: publications per year, 1999 to 2025
Year Publications
1999 1
2000 0
2001 1
2002 2
2003 4
2004 1
2005 8
2006 3
2007 4
2008 4
2009 2
2010 5
2011 9
2012 9
2013 6
2014 19
2015 3
2016 2
2017 9
2018 12
2019 5
2020 3
2021 10
2022 1
2023 4
2024 1
2025 1
Total 129
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Sinan Akkar 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 Sinan Akkar 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, 118–127 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: 119 publications — 21st percentile

21% 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
118–127 540 119
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
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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Sinan Akkar 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 Sinan Akkar 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, 42 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: 42 D-Index — 44th percentile

44% 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 42
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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Research.com Recognitions

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

Overview

Sinan Akkar is affiliated with Boğaziçi University in Turkey and primarily conducts research in engineering and earth and planetary sciences. Their work extensively focuses on civil and structural engineering as well as geophysics. The main topics addressed in their research include seismic performance and analysis, structural health monitoring techniques, masonry and concrete structural analysis, earthquake and tectonic studies, seismic waves and analysis, earthquake detection and analysis, and insurance and financial risk management.

Sinan Akkar has contributed to a range of publications, with articles appearing in several scientific venues. Frequent publication venues include the Bulletin of Earthquake Engineering, Zenodo (CERN European Organization for Nuclear Research), Earthquake Spectra, Earthquake Engineering & Structural Dynamics, and Research Square.

Recent papers authored or coauthored by Sinan Akkar are:

  • Model of seismic design lateral force levels for the existing reinforced concrete European building stock, 2021, Bulletin of Earthquake Engineering
  • European Exposure Model Data Repository, 2021, Zenodo (CERN European Organization for Nuclear Research)
  • An updated strong-motion database of Türkiye (SMD-TR), 2023, Earthquake Spectra
  • A new formulation for a code-based vertical design spectrum, 2020, Earthquake Engineering & Structural Dynamics
  • A simulation-based regional ground-motion model for Western Turkiye, 2023, Bulletin of Earthquake Engineering

The scientist has collaborated frequently with several coauthors, including Özkan Kale, M. Abdullah Sandıkkaya, Emrah Yenier, Helen Crowley, and Venetia Despotaki.

Sinan Akkar has also contributed to book publications, notably with Springer Nature. One such publication is Advances in Assessment and Modeling of Earthquake Loss, published in 2021.

Best Publications

  • Empirical Equations for the Prediction of PGA, PGV, and Spectral Accelerations in Europe, the Mediterranean Region, and the Middle East

    Sinan Akkar;Julian J. Bommer

  • Empirical ground-motion models for point- and extended-source crustal earthquake scenarios in Europe and the Middle East

    S. Akkar;M. A. Sandıkkaya;J. J. Bommer

  • Reference database for seismic ground-motion in Europe (RESORCE)

    S. Akkar;M. A. Sandikkaya;M. A. Sandikkaya;M. Senyurt;A. Azari Sisi

  • Toward a ground-motion logic tree for probabilistic seismic hazard assessment in Europe

    Elise Delavaud;Fabrice Cotton;Fabrice Cotton;Sinan Akkar;Frank Scherbaum

  • Empirical Prediction Equations for Peak Ground Velocity Derived from Strong-Motion Records from Europe and the Middle East

    Sinan Akkar;Julian J. Bommer

  • Prediction of elastic displacement response spectra in Europe and the Middle East

    Sinan Akkar;Julian J. Bommer

  • Drift estimates in frame buildings subjected to near-fault ground motions

    Sinan Akkar;Ufuk Yazgan;Polat Gülkan

  • A Local Ground-Motion Predictive Model for Turkey, and Its Comparison with Other Regional and Global Ground-Motion Models

    Sinan Akkar;Zehra Çağnan

  • Displacement-Based Fragility Functions for Low- and Mid-rise Ordinary Concrete Buildings

    Sinan Akkar;Haluk Sucuoğlu;Ahmet Yakut

  • The Influence of Magnitude Range on Empirical Ground-Motion Prediction

    Julian J. Bommer;Peter J. Stafford;John E. Alarcón;Sinan Akkar

  • Influence of long-period filter cut-off on elastic spectral displacements

    Sinan Akkar;Julian J. Bommer

  • Effect of causal and acausal filters on elastic and inelastic response spectra

    David M. Boore;Sinan Akkar

  • A Ground-Motion Predictive Model for Iran and Turkey for Horizontal PGA, PGV, and 5% Damped Response Spectrum: Investigation of Possible Regional Effects

    Özkan Kale;Sinan Akkar;Anooshiravan Ansari;Hossein Hamzehloo

  • Effect of peak ground velocity on deformation demands for SDOF systems

    S. Akkar;Ö. Özen

  • Generalized Interstory Drift Spectrum

    Enrique Alberto Miranda;Enrique Alberto Miranda;S. D. Akkar;S. D. Akkar

  • Current Challenges and Future Trends in Analytical Fragility and Vulnerability Modeling

    Vitor Silva;Sinan Akkar;Jack Baker;Paolo Bazzurro

  • A New Procedure for Selecting and Ranking Ground-Motion Prediction Equations (GMPEs): The Euclidean Distance-Based Ranking (EDR) Method

    Özkan Kale;Sinan Akkar

  • A Model for Single‐Station Standard Deviation Using Data from Various Tectonic Regions

    Adrian Rodriguez‐Marek;Fabrice Cotton;Norman A. Abrahamson;Sinan Akkar

  • The recently compiled Turkish strong motion database: preliminary investigation for seismological parameters

    Sinan Akkar;Zehra Cagnan;Emrah Yenier;Oezguer Erdogan

  • Compatible ground-motion prediction equations for damping scaling factors and vertical-to-horizontal spectral amplitude ratios for the broader Europe region

    Sinan Akkar;M. Sandikkaya;M. Sandikkaya;Bekir Ay

  • Dynamic Instability of Simple Structural Systems

    Eduardo Miranda;Sinan D. Akkar

Frequent Co-Authors

Julian J. Bommer
Julian J. Bommer Imperial College London
Fabrice Cotton
Fabrice Cotton University of Potsdam
Mustafa Erdik
Mustafa Erdik Kandilli Observatory and Earthquake Research Institute
Helen Crowley
Helen Crowley University of Pavia
John Douglas
John Douglas University of Strathclyde
Lucia Luzi
Lucia Luzi National Institute of Geophysics and Volcanology
David M. Boore
David M. Boore United States Geological Survey
Pierre-Yves Bard
Pierre-Yves Bard Grenoble Alpes University
Kyriazis Pitilakis
Kyriazis Pitilakis Aristotle University of Thessaloniki

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