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D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Earth Science 66 1339 598 224 14187

James J. O'Brien publications per year

The chart shows the history of publications by James J. O'Brien between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James J. O'Brien published across 61 years, from 1965 to 2025, averaging 4.9 papers a year. Output peaked at 21 publications in 2003. 3 of the 301 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2003. 1965: 2 publications 1966: 0 publications 1967: 1 publication 1968: 2 publications 1969: 1 publication 1970: 3 publications 1971: 1 publication 1972: 2 publications 1973: 3 publications 1974: 4 publications 1975: 2 publications 1976: 5 publications 1977: 1 publication 1978: 5 publications 1979: 0 publications 1980: 3 publications 1981: 6 publications 1982: 0 publications 1983: 11 publications 1984: 1 publication 1985: 5 publications 1986: 11 publications 1987: 2 publications 1988: 5 publications 1989: 7 publications 1990: 6 publications 1991: 6 publications 1992: 8 publications 1993: 4 publications 1994: 9 publications 1995: 10 publications 1996: 4 publications 1997: 2 publications 1998: 11 publications 1999: 12 publications 2000: 6 publications 2001: 11 publications 2002: 13 publications 2003: 21 publications 2004: 7 publications 2005: 8 publications 2006: 10 publications 2007: 8 publications 2008: 8 publications 2009: 11 publications 2010: 7 publications 2011: 5 publications 2012: 4 publications 2013: 3 publications 2014: 0 publications 2015: 3 publications 2016: 1 publication 2017: 0 publications 2018: 1 publication 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 10 publications 2023: 6 publications 2024: 2 publications 2025: 1 publication
1965 2025

301 publications in total across all disciplines

View publications per year as a table
James J. O'Brien: publications per year, 1965 to 2025
Year Publications
1965 2
1966 0
1967 1
1968 2
1969 1
1970 3
1971 1
1972 2
1973 3
1974 4
1975 2
1976 5
1977 1
1978 5
1979 0
1980 3
1981 6
1982 0
1983 11
1984 1
1985 5
1986 11
1987 2
1988 5
1989 7
1990 6
1991 6
1992 8
1993 4
1994 9
1995 10
1996 4
1997 2
1998 11
1999 12
2000 6
2001 11
2002 13
2003 21
2004 7
2005 8
2006 10
2007 8
2008 8
2009 11
2010 7
2011 5
2012 4
2013 3
2014 0
2015 3
2016 1
2017 0
2018 1
2019 0
2020 0
2021 0
2022 10
2023 6
2024 2
2025 1
Total 301
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James J. O'Brien 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 James J. O'Brien 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, 218–227 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: 224 publications — 71st percentile

71% 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
218–227 290 224
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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James J. O'Brien 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 James J. O'Brien 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, 66 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: 66 D-Index — 86th percentile

86% 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 66
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

  • 1988 - Fellow of American Geophysical Union (AGU)
  • 1988 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

James J. O'Brien was affiliated with Florida State University in the United States. Their body of research spanned multiple disciplines including environmental science and medicine, with specific contributions in ecology, oceanography, orthopedics and sports medicine, genetics, and cardiology and cardiovascular medicine.

Their research topics covered a range of areas, notably:

  • Microbial community ecology and physiology
  • Marine and coastal ecosystems
  • Sports injuries and prevention
  • Sports performance and training
  • Cardiovascular effects of exercise
  • Genomics and rare diseases
  • Environmental DNA in biodiversity studies

Frequent co-authors in their work included Martin Ostrowski, Justin R. Seymour, Katherina Petrou, Mark V. Brown, and Anna R. Bramucci.

Their publications appeared in several scientific journals, with multiple contributions to the Journal of Sports Science and Medicine, Deep Sea Research Part II Topical Studies in Oceanography, and Free Radical Biology and Medicine. Other publication venues included ISME Communications and Frontiers in Microbiology.

Significant recent publications by James J. O'Brien comprised:

  • Biogeographical and seasonal dynamics of the marine Roseobacter community and ecological links to DMSP-producing phytoplankton, 2022, ISME Communications
  • The Microbiological Drivers of Temporally Dynamic Dimethylsulfoniopropionate Cycling Processes in Australian Coastal Shelf Waters, 2022, Frontiers in Microbiology

Other notable research papers related to their collaborative work included:

  • Addressing underwater noise in Europe: Current state of knowledge and future priorities, 2021, Helmholtz Centre for Ocean Research Kiel (GEOMAR)
  • Increased DMSP availability during thermal stress influences DMSP-degrading bacteria in coral mucus, 2022, Frontiers in Marine Science
  • Predicting Injury and Illness with Machine Learning in Elite Youth Soccer: A Comprehensive Monitoring Approach over 3 Months, 2023, Journal of Sports Science and Medicine

James J. O'Brien received recognition as a Fellow of the American Geophysical Union (AGU) and a Fellow of the American Association for the Advancement of Science (AAAS), both awarded in 1988.

Best Publications

  • An introduction to wavelet analysis in oceanography and meteorology - With application to the dispersion of Yanai waves

    Steven D. Meyers;B. G. Kelly;J. J. O'Brien

  • Monitoring and Understanding Trends in Extreme Storms: State of Knowledge

    Kenneth E. Kunkel;Thomas R. Karl;Harold Brooks;James Kossin

  • Alternative Solutions to the Classical Vertical Velocity Problem.

    James J. O'Brien

  • A review of the predictability and prediction of ENSO

    Mojib Latif;D. Anderson;T. Barnett;M. Cane

  • A Note on the Vertical Structure of the Eddy Exchange Coefficient in the Planetary Boundary Layer

    James J. O'Brien

  • Interannual variability of the equatorial Pacific - Revisited

    Antonio J. Busalacchi;Kensuke Takeuchi;James J. O'Brien

  • Effect of El Niño on U.S. landfalling hurricanes, revisited

    Mark C. Bove;James B. Elsner;Chris W. Landsea;Xufeng Niu

  • Time and Space Variability of Tropical Pacific Wind Stress

    Stanley B. Goldenberg;James J. O'Brien

  • A Quantitative Evaluation of ENSO Indices

    Deborah E. Hanley;Mark A. Bourassa;James J. O'Brien;Shawn R. Smith

  • Seasonal circulation on the western shelf of the Gulf of Mexico using a high-resolution numerical model

    Jorge Zavala-Hidalgo;Jorge Zavala-Hidalgo;Steven L. Morey;James J. O'Brien

  • The seasonal circulation of the upper ocean in the Bay of Bengal

    James T. Potemra;Mark E. Luther;James J. O'Brien

  • Interannual variability of the equatorial Pacific in the 1960's

    Antonio J. Busalacchi;James J. O'Brien

  • VALUE OF IMPROVED LONG‐RANGE WEATHER INFORMATION

    Richard M. Adams;Kelly J. Bryant;Bruce A. Mccarl;David M. Legler

  • Export pathways for river discharged fresh water in the northern Gulf of Mexico

    Steven L. Morey;Paul J. Martin;James J. O'Brien;Alan A. Wallcraft

  • Open boundary conditions in rotating fluids

    Alejandro L Camerlengo;James J O'Brien

  • AgClimate: A climate forecast information system for agricultural risk management in the southeastern USA

    C.W. Fraisse;N.E. Breuer;D. Zierden;J.G. Bellow

  • The Seasonal Variability in a Model of the Tropical Pacific

    Antonio J. Busalacchi;James J. O'Brien

  • On the remote forcing of the circulation in the Bay of Bengal

    Lisan Yu;James J. O'Brien;Jiayan Yang

  • Use of ENSO-related climate information in agricultural decision making in Argentina: a pilot experience

    Guillermo Podestá;David Letson;Carlos Messina;Fred Royce

  • SeaWinds validation with research vessels

    Mark A. Bourassa;David M. Legler;James J. O'Brien;Shawn R. Smith

  • A Numerical Simulation of the Onset of El Niño

    H. E. Hurlburt;John C. Kindle;James J. O'Brien

  • The wind-driven seasonal circulation in the southern tropical Indian Ocean

    Karen E. Woodberry;Mark E. Luther;James J. O'Brien

  • Spatial analysis of precipitation intensity and concentration in Iran

    B. Alijani;J. O’Brien;B. Yarnal

  • Weibull Statistics of Wind Speed over the Ocean

    Edgar G. Pavia;James J. O'Brien

  • The connectivity of eddy variability in the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean

    Sylvia J. Murphy;Harley E. Hurlburt;James J. O'Brien

  • The seasonal and interannual variability of the California Current system: A numerical model

    Alejandro Pares-Sierra;James J. O'Brien

  • Isthmus of Tehuantepec Wind Climatology and ENSO Signal

    Rosario Romero-Centeno;Jorge Zavala-Hidalgo;Artemio Gallegos;James J. O'Brien

Frequent Co-Authors

Mark A. Bourassa
Mark A. Bourassa Florida State University
James W. Jones
James W. Jones University of Florida
Harley E. Hurlburt
Harley E. Hurlburt United States Naval Research Laboratory
Mark A. Johnson
Mark A. Johnson Yale University
Brent Yarnal
Brent Yarnal Pennsylvania State University
Jay F. Shriver
Jay F. Shriver United States Naval Research Laboratory
Kenneth E. Kunkel
Kenneth E. Kunkel North Carolina State University
Thomas R. Knutson
Thomas R. Knutson Geophysical Fluid Dynamics Laboratory
James P. Kossin
James P. Kossin University of Wisconsin–Madison
Lisan Yu
Lisan Yu Woods Hole Oceanographic Institution

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