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
Chemistry 72 5346 4855 305 276 211 16311
Earth Science 72 879 778 87 77 198 15758

James R. Maxwell publications per year

The chart shows the history of publications by James R. Maxwell between 1962 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. James R. Maxwell published across 64 years, from 1962 to 2025, averaging 3.9 papers a year. Output peaked at 14 publications in 1980. 3 of the 248 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1962 to 2025. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1980. 1962: 1 publication 1963: 0 publications 1964: 1 publication 1965: 2 publications 1966: 3 publications 1967: 1 publication 1968: 1 publication 1969: 2 publications 1970: 4 publications 1971: 2 publications 1972: 7 publications 1973: 6 publications 1974: 5 publications 1975: 2 publications 1976: 2 publications 1977: 4 publications 1978: 7 publications 1979: 4 publications 1980: 14 publications 1981: 7 publications 1982: 12 publications 1983: 5 publications 1984: 12 publications 1985: 8 publications 1986: 10 publications 1987: 3 publications 1988: 13 publications 1989: 6 publications 1990: 9 publications 1991: 7 publications 1992: 7 publications 1993: 11 publications 1994: 8 publications 1995: 14 publications 1996: 11 publications 1997: 4 publications 1998: 12 publications 1999: 5 publications 2000: 2 publications 2001: 1 publication 2002: 1 publication 2003: 3 publications 2004: 1 publication 2005: 0 publications 2006: 2 publications 2007: 0 publications 2008: 0 publications 2009: 0 publications 2010: 0 publications 2011: 0 publications 2012: 0 publications 2013: 0 publications 2014: 0 publications 2015: 0 publications 2016: 1 publication 2017: 0 publications 2018: 0 publications 2019: 0 publications 2020: 0 publications 2021: 0 publications 2022: 1 publication 2023: 1 publication 2024: 2 publications 2025: 1 publication
1962 2025

248 publications in total across all disciplines

View publications per year as a table
James R. Maxwell: publications per year, 1962 to 2025
Year Publications
1962 1
1963 0
1964 1
1965 2
1966 3
1967 1
1968 1
1969 2
1970 4
1971 2
1972 7
1973 6
1974 5
1975 2
1976 2
1977 4
1978 7
1979 4
1980 14
1981 7
1982 12
1983 5
1984 12
1985 8
1986 10
1987 3
1988 13
1989 6
1990 9
1991 7
1992 7
1993 11
1994 8
1995 14
1996 11
1997 4
1998 12
1999 5
2000 2
2001 1
2002 1
2003 3
2004 1
2005 0
2006 2
2007 0
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 1
2017 0
2018 0
2019 0
2020 0
2021 0
2022 1
2023 1
2024 2
2025 1
Total 248
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James R. Maxwell publications per year - data summary

  • James R. Maxwell, a Earth Science scholar from University of Bristol, has 248 publications recorded across 64 years, from 1962 to 2025.
  • The oldest publication on record dates to 1962 and the most recent to 2025.
  • The most productive years are 1980 and 1995, with 14 publications each.
  • The least productive years with any output are 1962, 1964, 1967, 1968 and others, with 1 publication each.
  • 16 of the 64 years in the span carry no publications at all (1963, 2005, 2007, 2008 and others).
  • The rate of publication averages 3.9 papers per year over the whole span, or 5.2 per year counting only the 48 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 5 publications, 2% of the career total.
  • Split into equal eras - 1962-1983: 92 publications (4.2 per year); 1984-2005: 148 publications (6.7 per year); 2006-2025: 8 publications (0.4 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

James R. Maxwell 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 R. Maxwell 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, 198–207 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: 198 publications — 62nd percentile

62% 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
198–207 333 198
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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James R. Maxwell publication distribution in Earth Science in 2026 - data summary

  • The chart plots the publication count of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 58 ranges running from 38–47 to 603+ publications.
  • James R. Maxwell, a Earth Science scholar from University of Bristol, records 198 publications - the 62nd percentile of the discipline.
  • 62% of ranked Earth Science scientists score the same or lower than James R. Maxwell, and about 38% score higher.
  • The median of the discipline falls in the 168–177 publications range, and James R. Maxwell ranks above the median.
  • The most crowded range is 128–137 publications, holding 557 scientists (6% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 178–187 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 603 publications or more, 100 scientists in all (1% of the field).

James R. Maxwell 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 R. Maxwell 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, 72 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: 72 D-Index — 91st percentile

91% 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 72
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
Download as CSV

James R. Maxwell D-index placement in Earth Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 9,176 Earth Science scientists ranked by Research.com in 2026, grouped into 77 ranges running from 30 to 106+ D-Index.
  • James R. Maxwell, a Earth Science scholar from University of Bristol, records 72 D-Index - the 91st percentile of the discipline.
  • 91% of ranked Earth Science scientists score the same or lower than James R. Maxwell, and about 9% score higher.
  • The median of the discipline falls in the 44 D-Index range, and James R. Maxwell ranks above the median.
  • The most crowded range is 36 D-Index, holding 389 scientists (4% of the field).
  • 62% of the field sits in the lowest quarter of the value range (up to 49 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 106 D-Index or more, 98 scientists in all (1% of the field).

Research.com Recognitions

  • 1997 - Fellow of the Royal Society, United Kingdom
  • 1994 - Interdisciplinary Prize, Royal Society of Chemistry (UK)

Overview

James R. Maxwell is affiliated with the University of Bristol in the United Kingdom. Their research primarily spans the fields of Environmental Science and Earth and Planetary Sciences, with a scientific focus on several interconnected subfields and topics.

The main subfields of study for their work include:

  • Global and Planetary Change
  • Atmospheric Science
  • Nature and Landscape Conservation
  • Rheumatology
  • Immunology

Within these subfields, Maxwell has concentrated on key research topics such as:

  • Plant Water Relations and Carbon Dynamics
  • Tree-ring climate responses
  • Forest ecology and management
  • Climate variability and models
  • Ecology and Vegetation Dynamics Studies
  • Tropical and Extratropical Cyclones Research
  • Hydrology and Drought Analysis

The scientist's publication record includes contributions to several frequent academic venues, including:

  • Dendrochronologia
  • Global Change Biology
  • Geophysical Research Letters
  • International Journal of Climatology
  • Science

Recent papers by James R. Maxwell include:

  • "Cross-biome synthesis of source versus sink limits to tree growth" (2022, Science)
  • "Joint effects of climate, tree size, and year on annual tree growth derived from tree-ring records of ten globally distributed forests" (2021, Global Change Biology)
  • "Warm springs alter timing but not total growth of temperate deciduous trees" (2022, Nature)
  • "Younger trees in the upper canopy are more sensitive but also more resilient to drought" (2022, Nature Climate Change)
  • "Recent increases in tropical cyclone precipitation extremes over the US east coast" (2021, Proceedings of the National Academy of Sciences)

Collaborative work has involved frequent coauthors, including:

  • Grant L. Harley
  • Scott M. Robeson
  • Tsun Fung Au
  • Joshua C. Bregy
  • Neil Pederson

James R. Maxwell has been recognized with awards such as:

  • Fellow of the Royal Society, United Kingdom (1997)
  • Interdisciplinary Prize, Royal Society of Chemistry (UK) (1994)

Best Publications

  • Molecular parameters of maturation in the Toarcian shales, Paris Basin, France—I. Changes in the configurations of acyclic isoprenoid alkanes, steranes and triterpanes

    A.S. Mackenzie;R.L. Patience;J.R. Maxwell;M. Vandenbroucke

  • Chemical fossils: the geological fate of steroids.

    A. S. Mackenzie;S. C. Brassell;G. Eglinton;J. R. Maxwell

  • acyclic isoprenoids as biological markers

    J. K Volkman;J. R Maxwell

  • Organic geochemical characterisation of depositional palaeoenvironments of source rocks and oils in Brazilian marginal basins

    M.R Mello;M.R Mello;N Telnaes;P.C Gaglianone;M.I Chicarelli

  • Geochemical and biological marker assessment of depositional environments using Brazilian offshore oils

    M.R. Mello;P.C. Gaglianone;S.C. Brassell;J.R. Maxwell

  • Specific acyclic isoprenoids as biological markers of methanogenic bacteria in marine sediments

    S. C. Brassell;A. M. K. Wardroper;I. D. Thomson;J. R. Maxwell

  • Molecular parameters of maturation in the Toarcian shales, Paris Basin, France—III. Changes in aromatic steroid hydrocarbons☆

    A.S Mackenzie;C.F Hoffmann;J.R Maxwell

  • The Botryococcenes—hydrocarbons of novel structure from the alga Botryococcus braunii, Kützing

    J.R. Maxwell;A.G. Douglas;G. Eglinton;A. McCormick

  • Further evidence for the development of photic-zone euxinic conditions during Mesozoic oceanic anoxic events

    Richard D. Pancost;Neal Crawford;Simon Magness;Andy Turner

  • Secular and environmental constraints on the occurrence of dinosterane in sediments

    Roger E. Summons;James Thomas;James R. Maxwell;Christopher J. Boreham

  • Stereochemical studies of acyclic isoprenoids—XII. Lipids of methanogenic bacteria and possible contributions to sediments☆

    J.B. Risatti;S.J. Rowland;D.A. Yon;J.R. Maxwell

  • Anomalies in steroid and hopanoid maturity indices

    H.L.Ten Haven;J.W.De Leeuw;T.M. Peakman;J.R. Maxwell

  • Natural Background of Alkanes in the Aquatic Environment

    S.C. Brassell;G. Eglinton;J.R. Maxwell;R.P. Philp

  • A biological marker study of coals, shales and oils from the Mahakam Delta, Kalimantan, Indonesia

    C.F. Hoffmann;A.S. Mackenzie;C.A. Lewis;J.R. Maxwell

  • Preliminary organic geochemical studies of samples from the Niger delta (Nigeria) I. Analyses of crude oils for triterpanes

    C.M. Ekweozor;J.I. Okogun;D.E.U. Ekong;J.R. Maxwell

  • Tri- and tetraterpenoid hydrocarbons in the Messel oil shale

    B.J Kimble;J.R Maxwell;R.P Philp;G Eglinton

  • The geochemistry of terpenoids and steroids.

    S. C. Brassell;G. Eglinton;J. R. Maxwell

  • Extended hopanoids in peat environments

    M.M. Quirk;A.M.K. Wardroper;R.E. Wheatley;J.R. Maxwell

  • Bacterial populations and processes in sediments containing gas hydrates (ODP Leg 146: Cascadia Margin)

    B.A. Cragg;R.J. Parkes;J.C. Fry;A.J. Weightman

  • The origin and fate of lipids in the Japan Trench

    S.C. Brassell;P.A. Comet;G. Eglinton;P.J. Isaacson

Frequent Co-Authors

Geoffrey Eglinton
Geoffrey Eglinton University of Bristol
Brendan J. Keely
Brendan J. Keely University of York
Ronald John Parkes
Ronald John Parkes Cardiff University
Simon C. Brassell
Simon C. Brassell Indiana University
George A. Wolff
George A. Wolff University of Liverpool
Richard P. Evershed
Richard P. Evershed University of Bristol
Jaap S. Sinninghe Damsté
Jaap S. Sinninghe Damsté Royal Netherlands Institute for Sea Research
J.W. de Leeuw
J.W. de Leeuw Delft University of Technology
Antoni Rosell-Melé
Antoni Rosell-Melé Autonomous University of Barcelona
Roger P. Harris
Roger P. Harris Plymouth Marine Laboratory

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