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
Earth Science 67 1223 1083 552 474 209 16264

Ryan C. Sullivan publications per year

The chart shows the history of publications by Ryan C. Sullivan between 1988 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ryan C. Sullivan published across 38 years, from 1988 to 2025, averaging 7.4 papers a year. Output peaked at 21 publications in 2021. 8 of the 281 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1988 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2021. 1988: 3 publications 1989: 0 publications 1990: 0 publications 1991: 2 publications 1992: 0 publications 1993: 0 publications 1994: 3 publications 1995: 4 publications 1996: 5 publications 1997: 16 publications 1998: 9 publications 1999: 5 publications 2000: 4 publications 2001: 0 publications 2002: 1 publication 2003: 0 publications 2004: 8 publications 2005: 4 publications 2006: 8 publications 2007: 8 publications 2008: 7 publications 2009: 7 publications 2010: 10 publications 2011: 10 publications 2012: 5 publications 2013: 9 publications 2014: 8 publications 2015: 12 publications 2016: 19 publications 2017: 14 publications 2018: 16 publications 2019: 20 publications 2020: 20 publications 2021: 21 publications 2022: 11 publications 2023: 4 publications 2024: 2 publications 2025: 6 publications
1988 2025

281 publications in total across all disciplines

View publications per year as a table
Ryan C. Sullivan: publications per year, 1988 to 2025
Year Publications
1988 3
1989 0
1990 0
1991 2
1992 0
1993 0
1994 3
1995 4
1996 5
1997 16
1998 9
1999 5
2000 4
2001 0
2002 1
2003 0
2004 8
2005 4
2006 8
2007 8
2008 7
2009 7
2010 10
2011 10
2012 5
2013 9
2014 8
2015 12
2016 19
2017 14
2018 16
2019 20
2020 20
2021 21
2022 11
2023 4
2024 2
2025 6
Total 281
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Ryan C. Sullivan 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 Ryan C. Sullivan 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, 208–217 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: 209 publications — 66th percentile

66% 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
208–217 292 209
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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Ryan C. Sullivan 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 Ryan C. Sullivan 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, 67 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: 67 D-Index — 87th percentile

87% 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 67
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

Ryan C. Sullivan is affiliated with Carnegie Mellon University in the United States. Their research spans several fields including Environmental Science, Earth and Planetary Sciences, and Medicine. Within these broader fields, their subfields of study focus on Atmospheric Science, Health, Toxicology and Mutagenesis, Global and Planetary Change, Epidemiology, and Environmental Chemistry.

Their work centers around main topics such as Atmospheric chemistry and aerosols, Air Quality and Health Impacts, Atmospheric aerosols and clouds, Per- and polyfluoroalkyl substances research, Toxic Organic Pollutants Impact, Atmospheric Ozone and Climate, and Sepsis Diagnosis and Treatment.

Among recent papers authored or co-authored by Ryan C. Sullivan are:

  • Atmospheric aging enhances the ice nucleation ability of biomass-burning aerosol, 2021, Science Advances
  • Aerosol-Ice Formation Closure: A Southern Great Plains Field Campaign, 2021, Bulletin of the American Meteorological Society
  • Biomass combustion produces ice-active minerals in biomass-burning aerosol and bottom ash, 2020, Proceedings of the National Academy of Sciences
  • Aerosol Optical Tweezers Elucidate the Chemistry, Acidity, Phase Separations, and Morphology of Atmospheric Microdroplets, 2020, Accounts of Chemical Research
  • Endothelial glycocalyx degradation during sepsis: Causes and consequences, 2021, Matrix Biology Plus

Frequent co-authors with whom Ryan C. Sullivan has collaborated include Leif G. Jahn, Bailey B. Bowers, Lydia G. Jahl, Luke Monroe, and Eric P. Schmidt.

Their research has been published repeatedly in several journals, with notable frequent venues including ACS Earth and Space Chemistry, Bulletin of the American Meteorological Society, Aerosol Science and Technology, Environmental Science Processes & Impacts, and bioRxiv (Cold Spring Harbor Laboratory).

Best Publications

  • Dust and Biological Aerosols from the Sahara and Asia Influence Precipitation in the Western U.S.

    Jessie M. Creamean;Kaitlyn J. Suski;Daniel Rosenfeld;Alberto Cazorla

  • Overview of the Spirit Mars Exploration Rover Mission to Gusev Crater: Landing site to Backstay Rock in the Columbia Hills

    R. E. Arvidson;S. W. Squyres;R. C. Anderson;J. F. Bell

  • Brownness of organics in aerosols from biomass burning linked to their black carbon content

    Rawad Saleh;Ellis S. Robinson;Daniel S. Tkacik;Adam T. Ahern

  • Bringing the ocean into the laboratory to probe the chemical complexity of sea spray aerosol

    Kimberly A. Prather;Timothy H. Bertram;Vicki H. Grassian;Grant B. Deane

  • The Opportunity Rover's Athena science investigation at Meridiani Planum, Mars.

    S. W. Squyres;R. E. Arvidson;J.F. Bell;J. Brückner

  • Sea spray aerosol as a unique source of ice nucleating particles

    Paul J. DeMott;Thomas C. J. Hill;Christina S. McCluskey;Kimberly A. Prather

  • Direct observations of the atmospheric processing of Asian mineral dust

    R. C. Sullivan;S. A. Guazzotti;D. A. Sodeman;D. A. Sodeman;K. A. Prather

  • Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles

    P. J. DeMott;A. J. Prenni;A. J. Prenni;G. R. McMeeking;R. C. Sullivan

  • The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars

    Steven W. Squyres;Raymond E. Arvidson;James F. Bell;J. Bruckner

  • Representativeness of Eddy-Covariance flux footprints for areas surrounding AmeriFlux sites

    Housen Chu;Xiangzhong Luo;Xiangzhong Luo;Zutao Ouyang;W. Stephen Chan

  • The International Soil Moisture Network: Serving Earth system science for over a decade

    Wouter Dorigo;Irene Himmelbauer;Daniel Aberer;Lukas Schremmer

  • Martian Fluvial Conglomerates at Gale Crater

    R. M. E. Williams;J. P. Grotzinger;W. E. Dietrich;S. Gupta

  • Curiosity at Gale Crater, Mars: Characterization and Analysis of the Rocknest Sand Shadow

    D F Blake;R V Morris;G Kocurek;Shaunna M Morrison

  • Erosion rates at the Mars Exploration Rover landing sites and long-term climate change on Mars

    M. P. Golombek;John A. Grant;Larry S. Crumpler;Ronald Greeley

  • Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles

    R. C. Sullivan;R. C. Sullivan;M. J. K. Moore;M. D. Petters;S. M. Kreidenweis

  • Results from the Mars Pathfinder camera.

    P. H. Smith;J. F. Bell;N. T. Bridges;D. T. Britt

  • Trace gas emissions from combustion of peat, crop residue, domestic biofuels, grasses, and other fuels: configuration and Fourier transform infrared (FTIR) component of the fourth Fire Lab at Missoula Experiment (FLAME-4)

    C. E. Stockwell;R. J. Yokelson;S. M. Kreidenweis;A. L. Robinson

  • Aeolian processes at the Mars Exploration Rover Meridiani Planum landing site.

    R. Sullivan;D. Banfield;J.F. Bell;W. Calvin

  • Characterization of Asian Dust during ACE-Asia

    R. Arimoto;Y.J. Kim;Y.P. Kim;P.K. Quinn

  • Recent advances in our understanding of atmospheric chemistry and climate made possible by on-line aerosol analysis instrumentation.

    Ryan C. Sullivan;Kimberly A. Prather

  • Irreversible loss of ice nucleation active sites in mineral dust particles caused by sulphuric acid condensation

    R. C. Sullivan;M. D. Petters;M. D. Petters;P. J. DeMott;S. M. Kreidenweis

Frequent Co-Authors

Ronald Greeley
Ronald Greeley Arizona State University
Paul J. DeMott
Paul J. DeMott Colorado State University
Matthew P. Golombek
Matthew P. Golombek California Institute of Technology
Robert T. Pappalardo
Robert T. Pappalardo California Institute of Technology
James F. Bell
James F. Bell Arizona State University
Jeffrey R. Johnson
Jeffrey R. Johnson Johns Hopkins University Applied Physics Laboratory
Sara C. Pryor
Sara C. Pryor Cornell University
Sonia M. Kreidenweis
Sonia M. Kreidenweis Colorado State University
Markus D. Petters
Markus D. Petters North Carolina State University
James W. Head
James W. Head Brown University

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