World's Best Scientists 2026 revealed!
Stewart P.H.T. Freeman

Stewart P.H.T. Freeman

D-Index & Metrics

Earth Science

D-Index
33
Citations
3029
World Ranking
8529
National Ranking
860

Stewart P.H.T. Freeman 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 Stewart P.H.T. Freeman sits on this spectrum.

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: 556 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 publications 603+

This scientist: 88 publications — 7th percentile

7% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

Stewart P.H.T. Freeman 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 Stewart P.H.T. Freeman sits on this spectrum.

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: 181 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: 33 D-Index — 11th percentile

11% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

Overview

Stewart P.H.T. Freeman is a researcher affiliated with the University of Glasgow in the United Kingdom. Their work spans multiple disciplines within Earth and Environmental Sciences, focusing predominantly on fields such as Atmospheric Science, Ecology, Paleontology, Earth-Surface Processes, and Environmental Chemistry. Freeman's research interests include Geology and Paleoclimatology, Cryospheric Studies, Polar Research and Ecology, Isotope Analysis in Ecology, Archaeology and Ancient Environmental Studies, Geological Formations and Processes, and Methane Hydrates and Related Phenomena.

Freeman has contributed to academic literature through various recent papers published in specialized journals. These include:

  • "Combined unsteady denudation and climatic gradient factors constrain carbonate landscape evolution: New insights from in situ cosmogenic 36Cl" (2020), published in Quaternary Geochronology
  • "Ice-free valleys in the Neptune Range of the Pensacola Mountains, Antarctica: glacial geomorphology, geochronology and potential as palaeoenvironmental archives" (2021), published in Antarctic Science
  • "Clean quartz matters for cosmogenic nuclide analyses: An exploration of the importance of sample purity using the CRONUS-N reference material" (2022), published in Quaternary Geochronology
  • "A DATABASE OF NERC RADIOCARBON MEASUREMENTS DETERMINED BY ACCELERATOR MASS SPECTROMETRY" (2023), published in Radiocarbon
  • "Another 6 years of radiocarbon secondary-standard AMS with two spectrometers" (2022), published in Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Freeman frequently collaborates with other scientists, with notable co-authors including:

  • Sheng Xu (4 joint publications)
  • David Small (3 joint publications)
  • Michael J. Bentley (3 joint publications)
  • Klaus M. Wilcken (2 joint publications)
  • Pauline Gulliver (2 joint publications)

The researcher has published primarily in venues such as Quaternary Geochronology, Antarctic Science, Radiocarbon, and Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, with multiple publications appearing in Quaternary Geochronology and contributions also appearing in the SSRN Electronic Journal.

Freeman's contributions are characterized by a focus on isotopic and radiocarbon dating techniques, as well as geomorphological and environmental analysis in polar and other ecological contexts. Their work addresses fundamental questions related to landscape evolution, glacial geomorphology, and the precision of measurement techniques for dating samples in Earth sciences.

Best Publications

  • Deglacial history of the West Antarctic Ice Sheet in the Weddell Sea embayment: Constraints on past ice volume change

    Michael J. Bentley;David E. Sugden;Christopher J. Fogwill;Anne M. Le Brocq

  • Towards more precise 10Be and 36Cl data from measurements at the 10−14 level: Influence of sample preparation

    S. Merchel;M. Arnold;G. Aumaitre;L. Benedetti

  • Southern Patagonian glacial chronology for the Last Glacial period and implications for Southern Ocean climate

    M. R. Kaplan;M. R. Kaplan;C. J. Fogwill;C. J. Fogwill;David Sugden;N. R. J. Hulton

  • Iodine isotopes in precipitation: temporal responses to (129)i emissions from the fukushima nuclear accident.

    Sheng Xu;Stewart P. H. T. Freeman;Xiaolin Hou;Akira Watanabe

  • Capabilities of the New SUERC 5MV AMS Facility for 14C Dating

    S Xu;R Anderson;C Bryant;G T Cook

  • Orogen-scale uplift in the central Italian Apennines drives episodic behaviour of earthquake faults.

    P.A. Cowie;R.J. Phillips;Gerald P. Roberts;K. McCaffrey

  • Single-grain cosmogenic 21Ne concentrations in fluvial sediments reveal spatially variable erosion rates

    Alexandru T. Codilean;Paul Bishop;Finlay M. Stuart;Trevor B. Hoey

  • Speciation of Radiocesium and Radioiodine in Aerosols from Tsukuba after the Fukushima Nuclear Accident

    Sheng Xu;Luyuan Zhang;Stewart P. H. T. Freeman;Xiaolin Hou

  • Cosmogenic 10Be and 26Al dating of paleolake shorelines in Tibet

    Ping Kong;Chunguang Na;Roderick Brown;Derek Fabel

  • Ultra-trace analysis of 36Cl by accelerator mass spectrometry: an interlaboratory study

    S. Merchel;S. Merchel;W. Bremser;V. Alfimov;M. Arnold

  • The deglacial history of southeast sector of the Greenland Ice Sheet during the Last Glacial Maximum

    David H. Roberts;Antony J. Long;Christoph Schnabel;Stewart Freeman

  • Influence of mollusk species on marine ΔR determinations

    Philippa L Ascough;Gordon T Cook;Andrew J Dugmore;E Marian Scott

  • A Cremated Bone Intercomparison Study

    Philip Naysmith;E. Marian Scott;Gordon T. Cook;Jan Heinemeier

  • The use of ‘bomb spike’ calibration and high-precision AMS 14C analyses to date salt-marsh sediments deposited during the past three centuries

    William A. Marshall;W. Roland Gehrels;Mark H. Garnett;Stewart P.H.T. Freeman

  • Tips and traps in the 14C bio-AMS preparation laboratory

    Bruce A Buchholz;Stewart P.H.T Freeman;Kurt W Haack;John S Vogel

  • Holocene deglacial history of the northeast Antarctic Peninsula – A review and new chronological constraints

    Joanne S. Johnson;Michael J. Bentley;Michael J. Bentley;Stephen J. Roberts;Steven A. Binnie

  • Cosmogenic nuclide measurements in southernmost South America and implications for landscape change

    M.R. Kaplan;A. Coronato;N.R.J. Hulton;J.O. Rabassa

  • Paleoseismology of the Mejillones Fault, northern Chile: Insights from cosmogenic 10Be and optically stimulated luminescence determinations

    L Gabriel González;S. A. Binnie;S. A. Binnie;R. Robinson

  • Rapid deglaciation of Marguerite Bay, western Antarctic Peninsula in the Early Holocene

    M.J. Bentley;M.J. Bentley;J.S. Johnson;D.A. Hodgson;T. Dunai

  • Extent of the last ice sheet in northern Scotland tested with cosmogenic 10Be exposure ages

    William M. Phillips;Adrian M. Hall;Colin K. Ballantyne;Steven Binnie

  • First cosmogenic 10Be age constraint on the timing of Younger Dryas glaciation and ice cap thickness, western Scottish Highlands†

    Nicholas R. Golledge;Nicholas R. Golledge;Derek Fabel;Jeremy D. Everest;Stewart Freeman

Frequent Co-Authors

Sheng Xu
Sheng Xu Tianjin University
Robert C. Finkel
Robert C. Finkel Lawrence Livermore National Laboratory
Derek Fabel
Derek Fabel Scottish Universities Environmental Research Centre
Dylan H. Rood
Dylan H. Rood Imperial College London
Marc W. Caffee
Marc W. Caffee Purdue University West Lafayette
Andrew S. Hein
Andrew S. Hein University of Edinburgh
Tibor J. Dunai
Tibor J. Dunai University of Cologne
Michael J. Bentley
Michael J. Bentley Durham University
Maurice Arnold
Maurice Arnold Collège de France
Charlotte Bryant
Charlotte Bryant Scottish Universities Environmental Research Centre

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