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 60 1844 1660 807 708 230 19715

Richard A. Ketcham publications per year

The chart shows the history of publications by Richard A. Ketcham between 1971 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Richard A. Ketcham published across 56 years, from 1971 to 2026, averaging 5.9 papers a year. Output peaked at 28 publications in 2019. 23 of the 332 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1971 to 2026. Vertical axis: number of publications, 0 to 28. Peak 28 publications in 2019. 1971: 1 publication 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 1 publication 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 3 publications 1996: 3 publications 1997: 2 publications 1998: 0 publications 1999: 3 publications 2000: 3 publications 2001: 2 publications 2002: 9 publications 2003: 12 publications 2004: 6 publications 2005: 14 publications 2006: 12 publications 2007: 11 publications 2008: 9 publications 2009: 11 publications 2010: 11 publications 2011: 10 publications 2012: 7 publications 2013: 17 publications 2014: 10 publications 2015: 14 publications 2016: 17 publications 2017: 12 publications 2018: 8 publications 2019: 28 publications 2020: 17 publications 2021: 11 publications 2022: 22 publications 2023: 9 publications 2024: 14 publications 2025: 22 publications 2026: 1 publication
1971 2026

332 publications in total across all disciplines

View publications per year as a table
Richard A. Ketcham: publications per year, 1971 to 2026
Year Publications
1971 1
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 1
1989 0
1990 0
1991 0
1992 0
1993 0
1994 0
1995 3
1996 3
1997 2
1998 0
1999 3
2000 3
2001 2
2002 9
2003 12
2004 6
2005 14
2006 12
2007 11
2008 9
2009 11
2010 11
2011 10
2012 7
2013 17
2014 10
2015 14
2016 17
2017 12
2018 8
2019 28
2020 17
2021 11
2022 22
2023 9
2024 14
2025 22
2026 1
Total 332
Download as CSV

Richard A. Ketcham 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 Richard A. Ketcham 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, 228–237 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: 230 publications — 73rd percentile

73% 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
228–237 262 230
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
Download as CSV

Richard A. Ketcham 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 Richard A. Ketcham 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, 60 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: 60 D-Index — 80th percentile

80% 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 60
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
Download as CSV

Overview

Richard A. Ketcham is affiliated with The University of Texas at Austin in the United States. Their research primarily advances the fields of Earth and Planetary Sciences, with a strong focus on Geophysics. They have contributed extensively to related subfields including Astronomy and Astrophysics, Artificial Intelligence, Materials Chemistry, and Atmospheric Science.

The scope of their work covers a range of scientific topics. These include:

  • Geological and Geochemical Analysis
  • Earthquake and Tectonic Studies
  • High-pressure Geophysics and Materials
  • Geochemistry and Geologic Mapping
  • Planetary Science and Exploration
  • Astro and Planetary Science
  • Nuclear Materials and Radiation Effects

Their recent research contributions encompass several peer-reviewed papers published between 2020 and 2023, including:

  • (U-Th)/He chronology: Part 2. Considerations for evaluating, integrating, and interpreting conventional individual aliquot data (2022, Geological Society of America Bulletin)
  • The Complexity of Nonlinear Flow and non-Fickian Transport in Fractures Driven by Three-Dimensional Recirculation Zones (2020, Journal of Geophysical Research Solid Earth)
  • Human Occupation of the North American Colorado Plateau ∼37,000 Years Ago (2022, Frontiers in Ecology and Evolution)
  • The along-track etching structure of fission tracks in apatite: Observations and implications (2020, Chemical Geology)
  • Chemical abrasion: the mechanics of zircon dissolution (2023, Geochronology)

Richard A. Ketcham has collaborated frequently with a number of coauthors across their studies. Notable repeated collaborators include Daniel F. Stöckli, Peter W. Reiners, Peter K. Zeitler, David L. Shuster, and Brian K. Horton.

Their publications appear predominantly in specialized scientific venues, with prominent contributions to:

  • Abstracts with programs - Geological Society of America
  • Harvard Dataverse
  • Geochronology
  • Journal of Geophysical Research Planets
  • Chemical Geology

Best Publications

  • Acquisition, optimization and interpretation of X-ray computed tomographic imagery: applications to the geosciences

    Richard A. Ketcham;William D. Carlson

  • Forward and Inverse Modeling of Low-Temperature Thermochronometry Data

    Richard A. Ketcham

  • Apatite (U-Th)/He thermochronometry using a radiation damage accumulation and annealing model

    Rebecca M. Flowers;Richard A. Ketcham;David L. Shuster;Kenneth A. Farley

  • Variability of apatite fission-track annealing kinetics: III. Extrapolation to geological time scales

    Richard A. Ketcham;Raymond A. Donelick;Raymond A. Donelick;William D. Carlson

  • Improved modeling of fission-track annealing in apatite

    Richard A. Ketcham;Andrew Carter;Raymond A. Donelick;Jocelyn Barbarand

  • Apatite Fission-Track Analysis

    Raymond A. Donelick;Paul B. O’Sullivan;Richard A. Ketcham

  • Variability of apatite fission-track annealing kinetics: I. Experimental results

    William D. Carlson;Raymond A. Donelick;Raymond A. Donelick;Richard A. Ketcham

  • Helium diffusion in natural zircon: radiation damage, anisotropy, and the interpretation of zircon (U-TH)/He thermochronology

    William R. Guenthner;Peter W. Reiners;Richard A. Ketcham;Lutz Nasdala

  • Variability of apatite fission-track annealing kinetics; II, Crystallographic orientation effects

    Raymond A. Donelick;Richard A. Ketcham;William D. Carlson

  • Computational methods for quantitative analysis of three-dimensional features in geological specimens

    Richard A. Ketcham

  • Definitive fossil evidence for the extant avian radiation in the Cretaceous

    Julia A. Clarke;Julia A. Clarke;Claudia Patricia Tambussi;Jorge Ignacio Noriega;Gregory M. Erickson;Gregory M. Erickson

  • Accounting for long alpha-particle stopping distances in (U–Th–Sm)/He geochronology: Refinement of the baseline case

    Richard A. Ketcham;Cécile Gautheron;Laurent Tassan-Got

  • AFTSolve: A program for multi-kinetic modeling of apatite fission-track data

    Richard A. Ketcham;Raymond A. Donelick;Margaret B. Donelick

  • Improved measurement of fission-track annealing in apatite using c-axis projection

    Richard A. Ketcham;Andrew Carter;Raymond A. Donelick;Jocelyn Barbarand

  • Three-dimensional quantitative textural analysis of metamorphic rocks using high-resolution computed X-ray tomography: Part I. Methods and techniques.

    C. Denison;W. D. Carlson;R. A. Ketcham

  • Three-dimensional grain fabric measurements using high-resolution X-ray computed tomography

    Richard A. Ketcham

  • Computational Tools for Low-Temperature Thermochronometer Interpretation

    Todd A. Ehlers;Tehmasp Chaudhri;Santosh Kumar;Chris W. Fuller

  • Modification of the Local Cubic Law of fracture flow for weak inertia, tortuosity, and roughness

    Linchun Wang;M. Bayani Cardenas;Donald T. Slottke;Richard A. Ketcham

  • Migration of Cenozoic deformation in the Eastern Cordillera of Colombia interpreted from fission track results and structural relationships: Implications for petroleum systems

    Andrés Mora;Brian K. Horton;Andrés Mesa;Jorge Rubiano

  • Pore‐scale trapping of supercritical CO2 and the role of grain wettability and shape

    Kuldeep Chaudhary;M. Bayani Cardenas;William W. Wolfe;Jessica A. Maisano

  • Reproducibility of apatite fission-track length data and thermal history reconstruction

    Richard A. Ketcham;Raymond A. Donelick;Maria Laura Balestrieri;Massimiliano Zattin

Frequent Co-Authors

William D. Carlson
William D. Carlson The University of Texas at Austin
Daniel F. Stockli
Daniel F. Stockli The University of Texas at Austin
Andrés Mora
Andrés Mora Ecopetrol (Colombia)
Cécile Gautheron
Cécile Gautheron University of Paris-Saclay
Mauricio Parra
Mauricio Parra Universidade de São Paulo
Brian K. Horton
Brian K. Horton The University of Texas at Austin
Andrew Carter
Andrew Carter Birkbeck, University of London
M. Bayani Cardenas
M. Bayani Cardenas The University of Texas at Austin
Lionel Wilson
Lionel Wilson Lancaster University
Nicholas A. Peppas
Nicholas A. Peppas The University of Texas at Austin

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring Earth Science in the USA opens doors to various interdisciplinary online degrees that complement this field. For those interested in managing scientific data and resources, a masters in library science can be highly beneficial, especially in research institutions or environmental archives.

Creatives can also combine scientific observation with visual arts by pursuing a digital photography degree online. This path is excellent for documenting geological formations, wildlife, and environmental changes.

Veterans seeking flexible learning options may find specialized online photography degree programs for veterans helpful. These programs offer tailored support, making it easier to balance education with other commitments.

Furthermore, a bachelors in spanish online can enhance communication skills for Earth Scientists working in multicultural and international environments, broadening career opportunities globally.

Best Scientists Citing Richard A. Ketcham

Trending Scientists

Recently Published Articles