World's Best Scientists 2026 revealed!
Graham S. Leonard

Graham S. Leonard

D-Index & Metrics

Earth Science

D-Index
36
Citations
4461
World Ranking
7306
National Ranking
79

Graham S. Leonard 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 Graham S. Leonard 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: 123 publications — 21st percentile

21% of scientists in this discipline score the same or lower.

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

Graham S. Leonard 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 Graham S. Leonard 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: 36 D-Index — 13th percentile

13% of scientists in this discipline score the same or lower.

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

Overview

Graham S. Leonard is affiliated with GNS Science in New Zealand and has contributed extensively to the field of Earth and Planetary Sciences. Their research encompasses geophysics, atmospheric science, sociology and political science, management, monitoring, policy and law, and ocean engineering. The dominant subfield of their work is geophysics, alongside significant contributions to atmospheric science and disaster-related studies.

The scientist's work covers a range of topics including geological and geochemical analysis, earthquake and tectonic studies, geology and paleoclimatology research, disaster management and resilience, high-pressure geophysics and materials, landslides and related hazards, and evacuation and crowd dynamics.

Frequent publication venues for Graham S. Leonard include:

  • New Zealand Journal of Geology and Geophysics
  • Bulletin of Volcanology
  • International Journal of Disaster Risk Reduction
  • Frontiers in Earth Science
  • Journal of Volcanology and Geothermal Research

Some notable recent papers authored or coauthored by them are:

  • "Taupō: an overview of New Zealand's youngest supervolcano", 2020, New Zealand Journal of Geology and Geophysics
  • "Auckland Volcanic Field magmatism, volcanism, and hazard: a review", 2020, New Zealand Journal of Geology and Geophysics
  • "A high resolution 40Ar/39Ar lava chronology and edifice construction history for Tongariro volcano, New Zealand", 2020, Journal of Volcanology and Geothermal Research
  • "Tsunami awareness and preparedness in Aotearoa New Zealand: The evolution of community understanding", 2021, International Journal of Disaster Risk Reduction
  • "Ruapehu and Tongariro stratovolcanoes: a review of current understanding", 2021, New Zealand Journal of Geology and Geophysics

Graham S. Leonard has collaborated frequently with several researchers, including:

  • Colin Wilson
  • Dougal Townsend
  • Thomas Wilson
  • David Johnston
  • Josh L. Hayes

The scientist's research integrates geological and geochemical methodologies with disaster management themes, reflecting interdisciplinary approaches that address volcanic activity, tectonic processes, and disaster risk reduction. Their contributions also engage with social and policy dimensions within natural hazard contexts, supporting multi-faceted understanding of resilience and preparedness strategies.

Best Publications

  • Volcanic ash impacts on critical infrastructure

    Thomas M. Wilson;Carol Stewart;Victoria Sword-Daniels;Graham S. Leonard

  • Contamination of water supplies by volcanic ashfall: A literature review and simple impact modelling

    C. Stewart;D. M. Johnston;G. S. Leonard;C. J. Horwell

  • Volcanism in the central Taupo Volcanic Zone, New Zealand: tempo, styles and controls

    C. J. N. Wilson;D. M. Gravley;G. S. Leonard;J. V. Rowland

  • High-level stratigraphic scheme for New Zealand rocks

    N Mortimer;Rattenbury;PR King;KJ Bland

  • Basalt triggering of the c. AD 1305 Kaharoa rhyolite eruption, Tarawera Volcanic Complex, New Zealand

    G.S Leonard;J.W Cole;I.A Nairn;S Self

  • Scientist and stakeholder perspectives of transdisciplinary research: Early attitudes, expectations, and tensions

    Mary Anne Thompson;Susan Owen;Jan M. Lindsay;Graham S. Leonard

  • Rhyolite magma processes of the ∼AD 1315 Kaharoa eruption episode, Tarawera volcano, New Zealand

    I.A Nairn;P.R Shane;J.W Cole;G.J Leonard

  • Double trouble: Paired ignimbrite eruptions and collateral subsidence in the Taupo Volcanic Zone, New Zealand

    D.M. Gravley;C.J.N. Wilson;G.S. Leonard;J.W. Cole

  • Using groundwater age and hydrochemistry to understand sources and dynamics of nutrient contamination through the catchment into Lake Rotorua, New Zealand

    U. Morgenstern;C. J. Daughney;G. Leonard;D. Gordon

  • Developing effective warning systems : Ongoing research at Ruapehu volcano, New Zealand

    Graham S. Leonard;David M. Johnston;Douglas Paton;Amy Christianson

  • Distribution, stratigraphy, and history of proximal deposits from the c. AD 1305 Kaharoa eruptive episode at Tarawera Volcano, New Zealand

    I. A. Nairn;S. Self;J. W. Cole;G. S. Leonard

  • Age of the Auckland Volcanic Field: a review of existing data

    JM Lindsay;GS Leonard;ER Smid;BW Hayward

  • Developing warning and disaster response capacity in the tourism sector in coastal Washington, USA

    David Johnston;Julia Becker;Chris Gregg;Bruce Houghton

  • Volcanic and structural evolution of the Okataina Volcanic Centre; dominantly silicic volcanism associated with the Taupo Rift, New Zealand

    J.W. Cole;K.D. Spinks;C.D. Deering;I.A. Nairn

  • Rapid Evolution of Subduction-Related Continental Intraarc Rifts: The Taupo Rift, New Zealand

    P. Villamor;K. R. Berryman;S. M. Ellis;G. Schreurs

  • Origins of cold-wet-oxidizing to hot-dry-reducing rhyolite magma cycles and distribution in the Taupo Volcanic Zone, New Zealand

    C. D. Deering;C. D. Deering;D. M. Gravley;T. A. Vogel;J. W. Cole

  • High-precision 40 Ar/ 39 Ar dating of Quaternary basalts from Auckland Volcanic Field, New Zealand, with implications for eruption rates and paleomagnetic correlations

    Graham S. Leonard;Andrew T. Calvert;Jenni L. Hopkins;Colin J.N. Wilson

  • Ignimbrite flare-ups and their drivers: A New Zealand perspective

    D.M. Gravley;C.D. Deering;G.S. Leonard;J.V. Rowland

  • A high-resolution 40Ar/39Ar lava chronology and edifice construction history for Ruapehu volcano, New Zealand

    Unknown

  • Taupō: an overview of New Zealand's youngest supervolcano

    Simon J. Barker;Colin J.N. Wilson;Finnigan Illsley-Kemp;Graham S. Leonard

  • Auckland Volcanic Field magmatism, volcanism, and hazard: a review

    Jenni L. Hopkins;Elaine R. Smid;Jennifer D. Eccles;Josh L. Hayes

  • Variable population exposure and distributed travel speeds in least-cost tsunami evacuation modelling

    Stuart A. Fraser;Nathan J. Wood;David A. Johnston;David A. Johnston;Graham S. Leonard

Frequent Co-Authors

Colin J.N. Wilson
Colin J.N. Wilson Victoria University of Wellington
Andrew T. Calvert
Andrew T. Calvert United States Geological Survey
Shane J. Cronin
Shane J. Cronin University of Auckland
John A. Gamble
John A. Gamble Victoria University of Wellington
Jim Cole
Jim Cole University of Canterbury
Jan M. Lindsay
Jan M. Lindsay University of Auckland
Ben Kennedy
Ben Kennedy University of Canterbury
Pilar Villamor
Pilar Villamor GNS Science
James D. L. White
James D. L. White University of Otago
Peter J. Baxter
Peter J. Baxter University of Cambridge

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

Studying Earth Science in the USA opens diverse career pathways, many of which can be further enhanced through specialized online degrees. For instance, graduates interested in organizational aspects within environmental firms might explore the best online masters degree in human resource management programs. This combination helps bridge scientific expertise with people management skills.

Online education also caters to a wide range of learners, including non-traditional students. Older adults looking to pivot careers or deepen their knowledge can benefit from some of the degrees for older adults that offer flexible pacing and tailored support.

For those drawn to data management, research, or information science related to Earth Science, pursuing an ALA-accredited degree can be valuable. The ALA-accredited program ensures credibility and relevance in library and information science careers.

Considering whether specialized programs add value? Exploring if is a library science degree worth it can provide insight into leveraging Earth Science expertise in information-rich environments such as government agencies or academic institutions.

Best Scientists Citing Graham S. Leonard

Trending Scientists

Recently Published Articles