World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
81
Citations
34815
World Ranking
912
National Ranking
397

G. C. Toon 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 G. C. Toon 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 333 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

G. C. Toon 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 G. C. Toon 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 81 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

G. C. Toon is affiliated with the California Institute of Technology in the United States. Their research spans several interconnected fields primarily related to Earth and planetary sciences, environmental science, and chemistry. Within these broad areas, their work focuses heavily on atmospheric science, global and planetary change, and spectroscopy.

The main topics of G. C. Toon's research include:

  • Atmospheric Ozone and Climate
  • Atmospheric and Environmental Gas Dynamics
  • Spectroscopy and Laser Applications
  • Atmospheric chemistry and aerosols
  • Astro and Planetary Science
  • Advanced Chemical Physics Studies
  • Hydrocarbon exploration and reservoir analysis

Their publication record includes a number of papers appearing in leading scientific journals and conference proceedings. Frequent venues for their work include:

  • Journal of Quantitative Spectroscopy and Radiative Transfer
  • Atmospheric measurement techniques
  • Proceedings of the 2020 International Symposium on Molecular Spectroscopy
  • Molecular Physics
  • Journal of Molecular Spectroscopy

Recent papers authored or co-authored by G. C. Toon demonstrate a focus on atmospheric measurement techniques and spectroscopic databases, with examples including:

  • The HITRAN2020 molecular spectroscopic database, 2021, Journal of Quantitative Spectroscopy and Radiative Transfer
  • The Total Carbon Column Observing Network's GGG2020 data version, 2024, Earth system science data
  • Regional and Urban Column CO Trends and Anomalies as Observed by MOPITT Over 16 Years, 2021, Journal of Geophysical Research Atmospheres
  • A new algorithm to generate a priori trace gas profiles for the GGG2020 retrieval algorithm, 2023, Atmospheric measurement techniques
  • Retrieval of atmospheric CO 2 vertical profiles from ground-based near-infrared spectra, 2021, Atmospheric measurement techniques

G. C. Toon frequently collaborates with other researchers in the field. Regular co-authors include:

  • Keeyoon Sung
  • Joshua L. Laughner
  • Debra Wunch
  • P. O. Wennberg
  • Xinchuan Huang

The breadth of G. C. Toon's work covers detailed aspects of atmospheric gases, spectroscopic techniques, and environmental monitoring, reflecting an interdisciplinary approach to studying planetary atmospheres and climate-related phenomena.

Best Publications

  • The HITRAN 2008 molecular spectroscopic database

    L.S. Rothman;I.E. Gordon;Y. Babikov;A. Barbe

  • The HITRAN2012 molecular spectroscopic database

    Unknown

  • The Total Carbon Column Observing Network

    Debra Wunch;Geoffrey C. Toon;Jean-François L. Blavier;Rebecca A. Washenfelder

  • New global observations of the terrestrial carbon cycle from GOSAT: Patterns of plant fluorescence with gross primary productivity

    Christian Frankenberg;Joshua B. Fisher;John Worden;Grayson Badgley

  • The ACOS CO 2 retrieval algorithm – Part 1: Description and validation against synthetic observations

    C. W. O'Dell;B. Connor;H. Bösch;D. O'Brien

  • Toward accurate CO2 and CH4 observations from GOSAT

    A Butz;A Butz;S Guerlet;O Hasekamp;D Schepers

  • Calibration of the Total Carbon Column Observing Network using aircraft profile data

    Debra Wunch;Geoffrey C. Toon;Paul O. Wennberg;Steven C. Wofsy

  • Precision Requirements for Space-based XCO2 Data

    C. E. Miller;D. Crisp;P. L. DeCola;S. C. Olsen

  • Stratospheric water vapor increases over the past half‐century

    K. H. Rosenlof;S. J. Oltmans;D. Kley;J. M. Russell

  • Improvement of the retrieval algorithm for GOSAT SWIR XCO2 and XCH4 and their validation using TCCON data

    Y. Yoshida;N. Kikuchi;I. Morino;O. Uchino

  • Validation of Aura Microwave Limb Sounder stratospheric ozone measurements

    L. Froidevaux;Y. B. Jiang;A. Lambert;N. J. Livesey

  • Orbiting Carbon Observatory: Inverse method and prospective error analysis

    Brian J. Connor;Hartmut Boesch;Geoffrey Toon;Bhaswar Sen

  • Importance of secondary sources in the atmospheric budgets of formic and acetic acids

    F. Paulot;D. Wunch;J. D. Crounse;G. C. Toon

  • Process-evaluation of tropospheric humidity simulated by general circulation models using water vapor isotopologues: 1. Comparison between models and observations

    Camille Risi;Camille Risi;David Noone;John Worden;Christian Frankenberg

  • A method for evaluating bias in global measurements of CO 2 total columns from space

    D. Wunch;P. O. Wennberg;G. C. Toon;B. J. Connor

  • Carbon dioxide column abundances at the Wisconsin Tall Tower site

    R. A. Washenfelder;R. A. Washenfelder;G. C. Toon;J.-F. Blavier;Z. Yang

  • Daily and 3‐hourly variability in global fire emissions and consequences for atmospheric model predictions of carbon monoxide

    M. Mu;J. T. Randerson;G. R. van der Werf;L. Giglio

  • Early validation analyses of atmospheric profiles from EOS MLS on the aura Satellite

    L. Froidevaux;N.J. Livesey;W.G. Read;Y.B. Jiang

  • Validation of the Aura Microwave Limb Sounder middle atmosphere water vapor and nitrous oxide measurements

    Alyn Lambert;W. G. Read;N. J. Livesey;M. L. Santee

  • Preliminary validation of column-averaged volume mixing ratios of carbon dioxide and methane retrieved from GOSAT short-wavelength infrared spectra

    I. Morino;O. Uchino;M. Inoue;Y. Yoshida

  • The Atmospheric Trace Molecule Spectroscopy (ATMOS) Experiment: Deployment on the ATLAS Space Shuttle Missions

    Michael R. Gunson;M. M. Abbas;M. C. Abrams;M. Allen

Frequent Co-Authors

Bhaswar Sen
Bhaswar Sen California Institute of Technology
Peter F. Bernath
Peter F. Bernath Old Dominion University
Paul O. Wennberg
Paul O. Wennberg California Institute of Technology
Ross J. Salawitch
Ross J. Salawitch University of Maryland, College Park
Justus Notholt
Justus Notholt University of Bremen
Debra Wunch
Debra Wunch University of Toronto
Nicholas M. Deutscher
Nicholas M. Deutscher University of Wollongong
Gloria L. Manney
Gloria L. Manney Northwest Research Associates
Kenneth W. Jucks
Kenneth W. Jucks National Aeronautics and Space Administration
J. J. Margitan
J. J. Margitan Jet Propulsion Lab

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