World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
54
Citations
10736
World Ranking
12582
National Ranking
3348

Harold S. Johnston publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Harold S. Johnston sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 644 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 253 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 187 publications — 28th percentile

28% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Harold S. Johnston D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Harold S. Johnston sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 776 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 647 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 54 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Research.com Recognitions

  • 1997 - US President's National Medal of Science "For his major contributions to the chemical sciences in the areas of kinetics and photochemistry, and for his pivotal role in providing understanding and conservation of the Earth's atmospheric environment.", Presented by President Bill Clinton at a ceremony in Room 450, Old Executive Office Building, on Tuesday, December 16, 1997.
  • 1993 - NAS Award for Chemistry in Service to Society, U.S. National Academy of Sciences For his pioneering efforts to point out that man-made emissions could affect the chemistry of the stratosphere, in particular, the danger of the depletion by nitrogen oxide of the earth's critical and fragile ozone layer.
  • 1986 - Fellow of American Geophysical Union (AGU)
  • 1981 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1969 - Fellow of American Physical Society (APS)
  • 1965 - Member of the National Academy of Sciences
  • 1961 - Bourke Award, Royal Society of Chemistry (UK)
  • 1960 - Fellow of John Simon Guggenheim Memorial Foundation
  • 1955 - Fellow of Alfred P. Sloan Foundation

Overview

Harold S. Johnston is affiliated with the University of California, Berkeley in the United States. The focus of their scientific contributions lies primarily in the areas of chemical kinetics and photochemistry. Johnston's work has relevance to atmospheric chemistry and environmental conservation, with particular attention to the Earth's atmospheric environment.

Throughout their career, Johnston has been recognized with several prestigious awards. In 1997, they received the US President's National Medal of Science. The citation highlighted their major contributions to chemical sciences, especially in kinetics and photochemistry, and their role in enhancing understanding and conservation of the Earth's atmosphere. This award was presented by President Bill Clinton at a formal ceremony on December 16, 1997.

In 1993, Johnston was honored with the NAS Award for Chemistry in Service to Society by the U.S. National Academy of Sciences. The award recognized pioneering efforts to identify the impact of man-made emissions on stratospheric chemistry, specifically addressing the depletion of the ozone layer caused by nitrogen oxide.

Johnston's membership and fellowships in key scientific organizations demonstrate professional recognition spanning several decades. They have been a Member of the National Academy of Sciences since 1965. Their fellowship status includes the American Geophysical Union (AGU) since 1986, the American Association for the Advancement of Science (AAAS) since 1981, and the American Physical Society (APS) since 1969.

Additional fellowships include the John Simon Guggenheim Memorial Foundation in 1960 and the Alfred P. Sloan Foundation in 1955. Early in their career, in 1961, Johnston received the Bourke Award from the Royal Society of Chemistry (UK).

The overall scope of Johnston's scientific work is rooted in chemistry with an emphasis on environmental and atmospheric applications, as evidenced by the themes in the awards and institutional recognition. Their career reflects involvement with fundamental chemical kinetics and mechanisms relevant to atmospheric photochemistry and human impact on the ozone layer.

Best Publications

  • Reduction of stratospheric ozone by nitrogen oxide catalysts from supersonic transport exhaust.

    Harold Johnston

  • TUNNELLING CORRECTIONS FOR UNSYMMETRICAL ECKART POTENTIAL ENERGY BARRIERS

    Harold S. Johnston;Julian Heicklen

  • Activation Energies from Bond Energies. I. Hydrogen Transfer Reactions

    Harold S. Johnston;Christopher. Parr

  • The photochemistry of the nitrate radical and the kinetics of the nitrogen pentoxide-ozone system

    Richard A. Graham;Harold S. Johnston

  • Spectra and Kinetics of the Hydroperoxyl Free Radical in the Gas Phase

    Thomas T. Paukert;Harold S. Johnston

  • Photochemistry of NOx and HNOx Compounds

    Harold S. Johnston;Richard Graham

  • Reactions and quenching of vibrationally excited hydroxyl radicals

    G. E. Streit;H. S. Johnston

  • Kinetics of Nitrogen Dioxide Fluorescence

    Stephen E. Schwartz;Harold S. Johnston

  • Nitrogen oxides from high-altitude aircraft: An update of potential effects on ozone

    Harold S. Johnston;Douglas E. Kinnison;Donald J. Wuebbles

  • Large Tunnelling Corrections in Chemical Reaction Rates

    Harold S. Johnston;Donald Rapp

  • Effect of nuclear explosions on stratospheric nitric oxide and ozone

    Harold Johnston;Gary Whitten;John Birks

  • KINETIC STUDY OF THE NITRATE FREE RADICAL (NO3)‐FORMALDEHYDE REACTION AND ITS POSSIBLE ROLE IN NIGHTTIME TROPOSPHERIC CHEMISTRY

    C. A. Cantrell;W. R. Stockwell;L. G. Anderson;K. L. Busarow

  • Molecular Partition Functions in Terms of Local Properties

    Dudley R. Herschbach;Harold S. Johnston;Donald Rapp

  • Ultraviolet absorption spectrum of nitrous oxide as a function of temperature and isotopic substitution

    Gary S. Selwyn;Harold S. Johnston

  • Molecular Modulation Kinetic Spectrometry. CIOO and CIO2 Radicals in the Photolysis of Chlorine in Oxygen

    Harold S. Johnston;Earl D. Morris;Jack Van den Bogaerde

  • Nitrous oxide ultraviolet absorption spectrum at stratospheric temperatures

    Gary Selwyn;James Podolske;Harold S. Johnston

  • Interpretations of stratospheric photochemistry

    Harold S. Johnston;James Podolske

  • Gas-phase ultraviolet absorption spectrum of nitric acid vapor

    Harold Johnston;Richard Graham

  • Photodissociation quantum yields for the NO3 free radical

    Frank Magnotta;Harold S. Johnston

  • Gas phase reaction kinetics of neutral oxygen species

    Harold S. Johnston

  • Large Tunnelling Corrections in Chemical Reaction Rates.1II

    Unknown

Frequent Co-Authors

Douglas E. Kinnison
Douglas E. Kinnison National Center for Atmospheric Research
Donald J. Wuebbles
Donald J. Wuebbles University of Illinois at Urbana-Champaign
Jack G. Calvert
Jack G. Calvert Oak Ridge National Laboratory
Christopher A. Cantrell
Christopher A. Cantrell University of Colorado Boulder
James R. Podolske
James R. Podolske Ames Research Center
Bongsoo Kim
Bongsoo Kim Pusan National University
William R. Stockwell
William R. Stockwell Howard University
Henry F. Schaefer
Henry F. Schaefer University of Georgia
Charles E. Miller
Charles E. Miller California Institute of Technology
Yuan T. Lee
Yuan T. Lee Academia Sinica

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