World's Best Scientists 2026 revealed!
Jean-Claude Gérard

Jean-Claude Gérard

D-Index & Metrics

Environmental Sciences

D-Index
73
Citations
17199
World Ranking
1438
National Ranking
21

Jean-Claude Gérard publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Jean-Claude Gérard sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 414 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Jean-Claude Gérard D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Jean-Claude Gérard sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 73 D-Index — 86th percentile

86% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Research.com Recognitions

  • 2010 - Member of the European Academy of Sciences
  • 1998 - Member of Academia Europaea

Overview

Jean-Claude Gérard is affiliated with the University of Liège in Belgium. Their research expertise is situated primarily in the field of Physics and Astronomy, with detailed contributions in subfields including Astronomy and Astrophysics, Aerospace Engineering, Molecular Biology, Atmospheric Science, and Global and Planetary Change.

Their scholarly work concentrates on several main topics related to space and planetary sciences. These include:

  • Astro and Planetary Science
  • Planetary Science and Exploration
  • Solar and Space Plasma Dynamics
  • Ionosphere and magnetosphere dynamics
  • Space Exploration and Technology
  • Geomagnetism and Paleomagnetism Studies
  • Stellar, planetary, and galactic studies

Jean-Claude Gérard has contributed to multiple papers published in several prominent venues. Frequent publication outlets for their work include:

  • Journal of Geophysical Research Space Physics
  • Geophysical Research Letters
  • Journal of Geophysical Research Planets
  • Icarus
  • arXiv (Cornell University)

Some of their recent papers are:

  • "Are Dawn Storms Jupiter's Auroral Substorms?" (2021, AGU Advances)
  • "Discrete Aurora on Mars: Insights Into Their Distribution and Activity From MAVEN/IUVS Observations" (2021, Journal of Geophysical Research Space Physics)
  • "Jupiter Science Enabled by ESA's Jupiter Icy Moons Explorer" (2023, Space Science Reviews)
  • "Spatial Distribution of the Pedersen Conductance in the Jovian Aurora From Juno-UVS Spectral Images" (2020, Journal of Geophysical Research Space Physics)
  • "A Preliminary Study of Magnetosphere-Ionosphere-Thermosphere Coupling at Jupiter: Juno Multi-Instrument Measurements and Modeling Tools" (2021, Journal of Geophysical Research Space Physics)

The scientist collaborates frequently with several co-authors, including:

  • Denis Grodent
  • Bertrand Bonfond
  • G. R. Gladstone
  • T. K. Greathouse
  • Vincent Hue

Jean-Claude Gérard has been recognized with memberships in established scientific organizations. These include:

  • Member of the European Academy of Sciences (2010)
  • Member of Academia Europaea (1998)

Best Publications

  • A chemical survey of exoplanets with ARIEL

    Giovanna Tinetti;Pierre Drossart;Paul Eccleston;Paul Hartogh

  • Far Ultraviolet Imaging from the Image Spacecraft: 1. System Design

    S. B. Mende;H. Heetderks;H. U. Frey;M. Lampton

  • The effect of particle precipitation events on the neutral and ion chemistry of the middle atmosphere: II. Odd hydrogen

    D. W. Rusch;Jean-Claude Gérard;S. Solomon;P. J. Crutzen

  • Ultraviolet emissions from the magnetic footprints of Io, Ganymede and Europa on Jupiter

    J. T. Clarke;J. Ajello;G. Ballester;L. Ben Jaffel

  • Far ultraviolet imaging from the IMAGE spacecraft: 3. Spectral imaging of Lyman alpha and OI 135.6 nm

    S. B. Mende;H. Heetderks;H. U. Frey;J. M. Stock

  • CARAIB - A global model of terrestrial biological productivity

    Pierre Warnant;Louis François;David Strivay;Jean-Claude Gérard

  • SPICAV on Venus Express: Three spectrometers to study the global structure and composition of the Venus atmosphere

    Jean-Loup Bertaux;D. Nevejans;O. Korablev;Eric Villard

  • The Ionospheric Connection Explorer Mission: Mission Goals and Design

    T. J. Immel;S. L. England;S. B. Mende;R. A. Heelis

  • A self‐consistent model of the Jovian auroral thermal structure

    Denis Grodent;J. Hunter Waite;Jean-Claude Gérard

  • The Atmospheric Chemistry Suite (ACS) of Three Spectrometers for the ExoMars 2016 Trace Gas Orbiter

    Oleg Korablev;Franck Montmessin;Alexander Trokhimovskiy;Anna A. Fedorova

  • Response of Jupiter's and Saturn's auroral activity to the solar wind

    J. T. Clarke;J. Nichols;Jean-Claude Gérard;Denis Grodent

  • Hubble Space Telescope imaging of Jupiter's UV aurora during the Galileo orbiter mission

    John T. Clarke;Gilda Ballester;John Trauger;Joe Ajello

  • Reconnection in a rotation-dominated magnetosphere and its relation to Saturn's auroral dynamics

    S. W. H. Cowley;Sarah V. Badman;E. J. Bunce;J. T. Clarke

  • Morphological differences between Saturn's ultraviolet aurorae and those of Earth and Jupiter

    J. T. Clarke;Jean-Claude Gérard;Denis Grodent;S. Wannawichian

  • Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits.

    J. E. P. Connerney;A. Adriani;F. Allegrini;F. Bagenal

  • Jupiter's polar auroral emissions

    Denis Grodent;J. T. Clarke;J. H. Waite;S. W. H. Cowley

  • Martian dust storm impact on atmospheric H2O and D/H observed by ExoMars Trace Gas Orbiter

    Ann Carine Vandaele;Oleg Korablev;Frank Daerden;Shohei Aoki

  • The Ultraviolet Spectrograph on NASA’s Juno Mission

    G. Randall Gladstone;Steven C. Persyn;John S. Eterno;Brandon C. Walther

  • Variation of different components of Jupiter's auroral emission

    J. D. Nichols;J. D. Nichols;J. T. Clarke;Jean-Claude Gérard;Denis Grodent

  • Recurrent energization of plasma in the midnight-to-dawn quadrant of Saturn's magnetosphere, and its relationship to auroral UV and radio emissions

    D. G. Mitchell;S. M. Krimigis;C. Paranicas;P. C. Brandt

  • Origin of Saturn's aurora: Simultaneous observations by Cassini and the Hubble Space Telescope

    E. J. Bunce;C. S. Arridge;J. T. Clarke;A. J. Coates

  • Morphology of the Venus ultraviolet night airglow

    A. I. F. Stewart;Jean-Claude Gérard;D. W. Rusch;S. W. Bougher

Frequent Co-Authors

John Clarke
John Clarke University of California, Berkeley
G. R. Gladstone
G. R. Gladstone Southwest Research Institute
Stanley W. H. Cowley
Stanley W. H. Cowley University of Leicester
S. B. Mende
S. B. Mende University of California, Berkeley
Jonathan D. Nichols
Jonathan D. Nichols University of Leicester
Giuseppe Piccioni
Giuseppe Piccioni National Institute for Astrophysics
Emma J. Bunce
Emma J. Bunce University of Leicester
John E. P. Connerney
John E. P. Connerney Goddard Space Flight Center
William S. Kurth
William S. Kurth University of Iowa
Harald U. Frey
Harald U. Frey University of California, Berkeley

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