World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
91
Citations
48623
World Ranking
239
National Ranking
128

Raymond S. Bradley 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 Raymond S. Bradley sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

This scientist: 388 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 510 publications or more.

Raymond S. Bradley 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 Raymond S. Bradley sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

This scientist: 91 D-Index — 97th percentile

97% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 94 D-Index or more.

Research.com Recognitions

  • 2019 - Fellow of the Royal Society of Canada Academy of Science
  • 2016 - Member of Academia Europaea
  • 2009 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2005 - Fellow of American Geophysical Union (AGU)

Overview

Raymond S. Bradley is affiliated with the University of Massachusetts Amherst in the United States. Their research primarily focuses on Earth and Planetary Sciences, with a particular emphasis on Atmospheric Science, Ecology, Paleontology, Oceanography, and Environmental Chemistry.

Their work covers several main research topics, including:

  • Geology and Paleoclimatology Research
  • Methane Hydrates and Related Phenomena
  • Climate Change and Permafrost
  • Archaeology and Ancient Environmental Studies
  • Isotope Analysis in Ecology
  • Marine and Environmental Studies
  • Cryospheric Studies and Observations

Frequent co-authors in their published work include:

  • Boyang Zhao
  • Isla S. Castañeda
  • Tobias Schneider
  • W. J. D'Andrea
  • François Lapointe

Their research has appeared in a variety of scientific venues, with repeated publications in:

  • Abstracts with programs - Geological Society of America
  • Proceedings of the National Academy of Sciences
  • Communications Earth & Environment
  • Science Advances
  • Organic Geochemistry

Recent papers include:

  • "Annually resolved Atlantic sea surface temperature variability over the past 2,900 y" (2020), Proceedings of the National Academy of Sciences
  • "Asian inland wildfires driven by glacial-interglacial climate change" (2020), Proceedings of the National Academy of Sciences
  • "Development of an in situ branched GDGT calibration in Lake 578, southern Greenland" (2020), Organic Geochemistry
  • "Sedimentary DNA and molecular evidence for early human occupation of the Faroe Islands" (2021), Communications Earth & Environment
  • "Droughts and societal change: The environmental context for the emergence of Islam in late Antique Arabia" (2022), Science

Among distinctions received, they were recognized as a Fellow of the Royal Society of Canada in 2019, a Member of Academia Europaea since 2016, a Fellow of the American Association for the Advancement of Science (AAAS) since 2009, and a Fellow of the American Geophysical Union (AGU) since 2005.

Best Publications

  • Tree Rings and Climate

    Raymond S. Bradley;H. C. Fritts

  • Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly

    Michael E. Mann;Zhihua Zhang;Scott Rutherford;Raymond S. Bradley

  • Global-scale temperature patterns and climate forcing over the past six centuries

    Michael E. Mann;Raymond S. Bradley;Malcolm K. Hughes

  • Elevation-dependent warming in mountain regions of the world

    N. Pepin;R. S. Bradley;H. F. Diaz;M. Baraer

  • Northern Hemisphere Temperatures During the Past Millennium: Inferences, Uncertainties, and Limitations

    Michael E. Mann;Raymond S. Bradley;Malcolm K. Hughes

  • Paleoclimatology: Reconstructing Climates of the Quaternary

    Raymond S. Bradley

  • Reconstruction of solar irradiance since 1610: Implications for climate change

    Judith Lean;Juerg Beer;Raymond S. Bradley

  • Proxy-based reconstructions of hemispheric and global surface temperature variations over the past two millennia

    Michael E. Mann;Zhihua Zhang;Malcolm K. Hughes;Raymond S. Bradley

  • Arctic Environmental Change of the Last Four Centuries

    J. Overpeck;K. Hughen;D. Hardy;R. Bradley

  • Threats to Water Supplies in the Tropical Andes

    Raymond S. Bradley;Mathias Vuille;Henry F. Diaz;Walter Vergara

  • 'Little Ice Age' summer temperature variations: their nature and relevance to recent global warming trends:

    Raymond S. Bradley;Philip D. Jonest

  • Climatic Change at High Elevation Sites: An Overview

    M. Beniston;H. F. Diaz;R. S. Bradley

  • Climate change and tropical Andean glaciers: Past, present and future

    Mathias Vuille;Mathias Vuille;Bernard Francou;Patrick Wagnon;Irmgard Juen

  • Recent Warming Reverses Long-Term Arctic Cooling

    Darrell S. Kaufman;David P. Schneider;Nicholas P. McKay;Caspar M. Ammann

  • What Drives Societal Collapse

    Harvey Weiss;Raymond S. Bradley

  • Toward mountains without permanent snow and ice

    Matthias Huss;Matthias Huss;B Bookhagen;Christian Huggel;Dean Jacobsen

  • Climate in Medieval Time

    Raymond S. Bradley;Malcolm K. Hughes;Henry F. Diaz

  • 20Th century climate change in the tropical Andes: Observations and model results

    Mathias Vuille;Raymond S. Bradley;Martin Werner;Frank Keimig

  • Precipitation Fluctuations over Northern Hemisphere Land Areas Since the Mid-19th Century.

    R. S. Bradley;H. F. Diaz;J. K. Eischeid;P. D. Jones

  • TEMPERATURE VARIATIONS DURING THE LAST CENTURY AT HIGH ELEVATION SITES

    Henry F. Diaz;Raymond S. Bradley

  • Interannual climate variability in the Central Andes and its relation to tropical Pacific and Atlantic forcing

    Mathias Vuille;Raymond S. Bradley;Frank Keimig

Frequent Co-Authors

Pierre Francus
Pierre Francus Institut National de la Recherche Scientifique
Henry F. Diaz
Henry F. Diaz University of Hawaii at Manoa
Jostein Bakke
Jostein Bakke University of Bergen
Mathias Vuille
Mathias Vuille University at Albany, State University of New York
Philip Jones
Philip Jones University of East Anglia
Malcolm K. Hughes
Malcolm K. Hughes University of Arizona
Michael E. Mann
Michael E. Mann Pennsylvania State University
Keith R. Briffa
Keith R. Briffa University of East Anglia
Mark B. Abbott
Mark B. Abbott University of Pittsburgh
Gifford H. Miller
Gifford H. Miller University of Colorado Boulder

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