World's Best Scientists 2026 revealed!

D-Index & Metrics

Earth Science

D-Index
59
Citations
10243
World Ranking
2078
National Ranking
132

Robert J. Delmas 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 Robert J. Delmas 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: 136 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

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

Robert J. Delmas 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 Robert J. Delmas 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: 59 D-Index — 74th percentile

74% 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

  • 1991 - Member of Academia Europaea
  • Member of the European Academy of Sciences and Arts
  • Member of the European Academy of Sciences and Arts
  • Member of the European Academy of Sciences and Arts

Overview

Robert J. Delmas is affiliated with the Centre national de la recherche scientifique (CNRS) in France. Their research career has been marked by membership in prestigious scientific organizations, including becoming a Member of the Academia Europaea in 1991 and joining the European Academy of Sciences and Arts.

While specific details regarding their published research papers, frequent co-authors, or publication venues are not available, the information highlights a scholar engaged with notable scientific communities and institutions.

The available data does not specify Delmas's main fields or subfields of study, nor detailed topics of work or book publications. However, the affiliation with CNRS suggests involvement in research consistent with the institution's focus areas.

No data on awards beyond the memberships noted, or on recent papers, is provided.

Best Publications

  • Carbon dioxide and methane emissions and the carbon budget of a 10-year old tropical reservoir (Petit Saut, French Guiana)

    Gwenaël Abril;Frédéric Guérin;Frédéric Guérin;Sandrine Richard;Robert Delmas

  • The ice record of greenhouse gases

    D. Raynaud;J. Jouzel;J. M. Barnola;J. Chappellaz

  • Polar ice evidence that atmospheric CO 2 20,000 yr BP was 50% of present

    Robert J. Delmas;Jean-Marc Ascencio;Michel Legrand

  • Decrease in anthropogenic lead, cadmium and zinc in Greenland snows since the late 1960s

    Claude F. Boutron;Ursula Görlach;Jean-Pierre Candelone;Michael A. Bolshov

  • Methane and carbon dioxide emissions from tropical reservoirs: Significance of downstream rivers

    Frédéric Guérin;Frédéric Guérin;Gwenaël Abril;Sandrine Richard;Benoît Burban

  • Gas transfer velocities of CO2 and CH4 in a tropical reservoir and its river downstream

    Frédéric Guérin;Frédéric Guérin;Gwenaël Abril;Dominique Serça;Claire Delon

  • Formation of HCl in the Antarctic atmosphere

    Michel R. Legrand;Robert J. Delmas

  • A 220-year continuous record of volcanic H2SO4 in the Antarctic ice sheet

    Unknown

  • 1000 years of explosive volcanism recorded at the South Pole

    Robert J. Delmas;Severine Kirchner;Julie M. Palais;Jean-Robert Petit

  • Gaseous emissions and oxygen consumption in hydroelectric dams: A case study in French Guyana

    Corinne Galy-Lacaux;Robert Delmas;Corinne Jambert;Jean-François Dumestre

  • Long‐term greenhouse gas emissions from hydroelectric reservoirs in tropical forest regions

    Corinne Galy-Lacaux;Robert Delmas;Georges Kouadio;Sandrine Richard

  • Coherent isotope history of Andean ice cores over the last century

    G. Hoffmann;E. Ramirez;E. Ramirez;Jean-Denis Taupin;Bernard Francou

  • Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions

    Mélanie Baroni;Mark H. Thiemens;Robert J. Delmas;Joël Savarino

  • Emissions and concentrations of hydrogen sulfide in the air of the tropical forest of the Ivory Coast and of temperate regions in France

    Robert Delmas;Jean Baudet;Jean Servant;Yves Baziard

  • The ionic balance of Antarctic snow: A 10-year detailed record

    Unknown

  • Loss of volatile acid species from upper firn layers at Vostok, Antarctica

    P. Wagnon;R. J. Delmas;M. Legrand

  • Ice Core Studies of Global Biogeochemical Cycles

    Unknown

  • Geographic provenance of aeolian dust in East Antarctica during Pleistocene glaciations: preliminary results from Talos Dome and comparison with East Antarctic and new Andean ice core data

    B. Delmonte;P. S. Andersson;H. Schöberg;M. Hansson

  • Biomass burning in the tropical savannas of Ivory Coast: An overview of the field experiment Fire of Savannas (FOS/DECAFE 91)

    J. P. Lacaux;J. M. Brustet;R. Delmas;J. C. Menaut

  • Relative contributions of tropospheric and stratospheric sources to nitrate in Antarctic snow

    Michel R. Legrand;Robert J. Delmas

  • Sulfur‐containing species (methanesulfonate and SO4) over the last climatic cycle in the Greenland Ice Core Project (central Greenland) ice core

    Michel Legrand;C. Hammer;M. De Angelis;J. Savarino

  • Ion chromatographic determination of common ions at ultratrace levels in antarctic snow and ice

    M. Legrand;M. de Angelis;R.J. Delmas

  • Precipitation chemistry in the Mayombé forest of equatorial Africa

    J. P. Lacaux;R. Delmas;G. Kouadio;B. Cros

  • Volcanic deposits in Antarctic snow and ice

    Robert J. Delmas;Michel Legrand;Alberto J. Aristarain;Françoise Zanolini

Frequent Co-Authors

Michel Legrand
Michel Legrand University of Lille
Corinne Galy-Lacaux
Corinne Galy-Lacaux Federal University of Toulouse Midi-Pyrénées
Gwenaël Abril
Gwenaël Abril Biologie des Organismes et Écosystèmes Aquatiques
Michel Stievenard
Michel Stievenard Versailles Saint-Quentin-en-Yvelines University
Joel Savarino
Joel Savarino Grenoble Alpes University
Meinrat O. Andreae
Meinrat O. Andreae Max Planck Institute for Chemistry
Claude F. Boutron
Claude F. Boutron Grenoble Alpes University
Leonard A. Barrie
Leonard A. Barrie Stockholm University
Mark H. Thiemens
Mark H. Thiemens University of California, San Diego
Luc Abbadie
Luc Abbadie Sorbonne University

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