World's Best Scientists 2026 revealed!
Ivar S. A. Isaksen

Ivar S. A. Isaksen

D-Index & Metrics

Environmental Sciences

D-Index
78
Citations
27302
World Ranking
1056
National Ranking
11

Ivar S. A. Isaksen 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 Ivar S. A. Isaksen 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: 226 publications — 72nd percentile

72% of scientists in this discipline score the same or lower.

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

Ivar S. A. Isaksen 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 Ivar S. A. Isaksen 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: 78 D-Index — 89th percentile

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

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

Overview

Ivar S. A. Isaksen was affiliated with the University of Oslo in Norway and contributed to research in the fields of Earth and Planetary Sciences and Environmental Science. Their work focused primarily on subfields such as Atmospheric Science and Global and Planetary Change.

The scientist's research topics covered several main areas, including:

  • Atmospheric chemistry and aerosols
  • Atmospheric aerosols and clouds
  • Atmospheric Ozone and Climate

Their recent scholarly output included a paper titled "A combined photochemistry/aerosol dynamics model: model development and a study of new particle formation", published in 2024 in the Boreal Environment Research Journal Archive.

Frequent co-authors collaborating on publications with this researcher were:

  • Alf Grini
  • Hannele Korhonen
  • K. E. J. Lehtinen
  • Markku Kulmala

Publications by the scientist appeared in venues such as:

  • Boreal Environment Research Journal Archive

Best Publications

  • Analysis and quantification of the diversities of aerosol life cycles within AeroCom

    C. Textor;M. Schulz;S. Guibert;S. Kinne

  • A three-dimensional Eulerian acid deposition model: Physical concepts and formulation

    J. S. Chang;R. A. Brost;I. S. A. Isaksen;S. Madronich

  • Transport impacts on atmosphere and climate: Shipping

    Veronika Eyring;Ivar S.A. Isaksen;Terje Berntsen;William J. Collins

  • Multimodel ensemble simulations of present-day and near-future tropospheric ozone

    D. S. Stevenson;F. J. Dentener;M. G. Schultz;K. Ellingsen

  • Atmospheric chemistry and greenhouse gases

    D. Ehhalt;M. Prather;F. Dentener;R. Derwent

  • Atmospheric composition change – global and regional air quality

    P.S. Monks;Claire Granier;Claire Granier;Claire Granier;S. Fuzzi;A. Stohl

  • Emission from international sea transportation and environmental impact

    Øyvind Endresen;Eirik Sørgård;Jostein K. Sundet;Stig B. Dalsøren

  • An AeroCom Initial Assessment - Optical Properties in Aerosol Component Modules of Global Models

    S. Kinne;M. Schulz;C. Textor;S. Guibert

  • Atmospheric composition change: Ecosystems–Atmosphere interactions

    D. Fowler;Kim Pilegaard;M.A. Sutton;Per Ambus

  • Radiative forcing by aerosols as derived from the AeroCom present-day and pre-industrial simulations

    M. Schulz;C. Textor;S. Kinne;Yves Balkanski

  • Radiative forcing in the 21st century due to ozone changes in the troposphere and the lower stratosphere

    M. Gauss;G. Myhre;G. Pitari;M. J. Prather

  • Multimodel estimates of intercontinental source-receptor relationships for ozone pollution

    Arlene M. Fiore;F. J. Dentener;O. Wild;C. Cuvelier

  • Aviation radiative forcing in 2000: an update on IPCC (1999)

    Robert Sausen;Ivar Isaksen;Volker Grewe;Didier Hauglustaine

  • Quasi‐steady‐state approximations in air pollution modeling: Comparison of two numerical schemes for oxidant prediction

    Eigil Hesstvedt;Öystein Hov;Ivar S. A. Isaksen

  • The global atmospheric environment for the next generation

    F. Dentener;David Stevenson;K. Ellingsen;T. van Noije

  • Climate-chemical interactions and effects of changing atmospheric trace gases

    V. Ramanathan;L. Callis;R. Cess;J. Hansen

  • European scientific assessment of the atmospheric effects of aircraft emissions

    G.P. Brasseur;R.A. Cox;D. Hauglustaine;I. Isaksen

  • A historical reconstruction of ships' fuel consumption and emissions

    Øyvind Endresen;Eirik Sørgård;Hanna Lee Behrens;Per Olaf Brett

  • A Lagrangian Long Range Transport Model with Atmospheric Boundary Layer Chemistry

    Anton Eliassen;Jørgen Saltbones;Frode Stordal;Frode Stordal;Øystein Hov;Øystein Hov

  • Atmospheric Composition Change: Climate-Chemistry Interactions

    I.S.A. Isaksen;C. Granier;C. Granier;G. Myhre;T. Berntsen

  • Radiative forcing since preindustrial times due to ozone change in the troposphere and the lower stratosphere

    M. Gauss;G. Myhre;I. S. A. Isaksen;V. Grewe

  • The impact of traffic emissions on atmospheric ozone and OH: results from QUANTIFY

    P. Hoor;J. Borken-Kleefeld;D. Caro;O. Dessens

Frequent Co-Authors

Gunnar Myhre
Gunnar Myhre Center for International Climate and Environmental Research
Terje Berntsen
Terje Berntsen University of Oslo
Frode Stordal
Frode Stordal University of Oslo
Michael J. Prather
Michael J. Prather University of California, Irvine
Christos Zerefos
Christos Zerefos Academy of Athens
Giovanni Pitari
Giovanni Pitari University of L'Aquila
Oliver Wild
Oliver Wild Lancaster University
John A. Pyle
John A. Pyle University of Cambridge
Volker Grewe
Volker Grewe German Aerospace Center
Wei-Chyung Wang
Wei-Chyung Wang University at Albany, State University of New York

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