World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
57
Citations
12442
World Ranking
3430
National Ranking
1317

Isla R. Simpson 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 Isla R. Simpson 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: 155 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Isla R. Simpson 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 Isla R. Simpson 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: 57 D-Index — 65th percentile

65% of scientists in this discipline score the same or lower.

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

Overview

Isla R. Simpson is a researcher affiliated with the National Center for Atmospheric Research in the United States. Their work spans multiple areas within environmental and earth sciences, with a focus on atmospheric processes and climate systems.

Their recent publications include diverse studies addressing atmospheric and climate modeling, variability, and simulations. Notable recent papers are:

  • Insights from Earth system model initial-condition large ensembles and future prospects, 2020, Nature Climate Change
  • Ubiquity of human-induced changes in climate variability, 2021, Earth System Dynamics
  • Progress in Simulating the Quasi-Biennial Oscillation in CMIP Models, 2020, Journal of Geophysical Research Atmospheres
  • An Evaluation of the Large-Scale Atmospheric Circulation and Its Variability in CESM2 and Other CMIP Models, 2020, Journal of Geophysical Research Atmospheres
  • Isolating the Evolving Contributions of Anthropogenic Aerosols and Greenhouse Gases: A New CESM1 Large Ensemble Community Resource, 2020, Journal of Climate

Simpson collaborates frequently with a group of researchers in related fields. The frequent co-authors include:

  • Karen A. McKinnon
  • Jadwiga H. Richter
  • Clara Deser
  • Flavio Lehner
  • Nan Rosenbloom

Their research has been disseminated across key scientific journals, often appearing in the following publication venues:

  • Journal of Climate
  • Journal of Geophysical Research Atmospheres
  • Bulletin of the American Meteorological Society
  • Geoscientific Model Development
  • Geophysical Research Letters

Simpson's fields of study encompass:

  • Environmental Science
  • Earth and Planetary Sciences

Diving deeper, their subfields of work include:

  • Global and Planetary Change
  • Atmospheric Science
  • Oceanography
  • Astronomy and Astrophysics
  • Health, Toxicology and Mutagenesis

The main topics covered throughout their career reflect a substantial focus on climate and atmospheric dynamics. These include:

  • Climate variability and models
  • Meteorological Phenomena and Simulations
  • Atmospheric and Environmental Gas Dynamics
  • Atmospheric Ozone and Climate
  • Oceanographic and Atmospheric Processes
  • Tropical and Extratropical Cyclones Research
  • Atmospheric chemistry and aerosols

Best Publications

  • An Updated Assessment of Near-Surface Temperature Change From 1850: The HadCRUT5 Data Set

    Colin P. Morice;John J. Kennedy;Nick A. Rayner;J. P. Winn

  • Insights from Earth system model initial-condition large ensembles and future prospects

    Clara Deser;Flavio Lehner;Keith B. Rodgers;Toby R. Ault

  • The Whole Atmosphere Community Climate Model Version 6 (WACCM6)

    A. Gettelman;M. J. Mills;D. E. Kinnison;R. R. Garcia

  • Taking climate model evaluation to the next level

    Veronika Eyring;Veronika Eyring;Peter M. Cox;Gregory M. Flato;Peter J. Gleckler

  • Storm track processes and the opposing influences of climate change

    T. A. Shaw;M. Baldwin;E. A. Barnes;Rodrigo Caballero

  • The role of the stratosphere in subseasonal to seasonal prediction Part II: Predictability arising from stratosphere ‐ troposphere coupling

    Daniela I. V. Domeisen;Amy H. Butler;Amy H. Butler;Andrew J. Charlton-Perez;Blanca Ayarzagüena;Blanca Ayarzagüena

  • The Downward Influence of Stratospheric Sudden Warmings

    Peter Hitchcock;Isla R. Simpson

  • A stratospheric pathway linking a colder Siberia to Barents-Kara Sea sea ice loss.

    Pengfei Zhang;Pengfei Zhang;Yutian Wu;Isla R. Simpson;Karen L. Smith

  • The Northern Hemisphere Extratropical Atmospheric Circulation Response to ENSO: How Well Do We Know It and How Do We Evaluate Models Accordingly?

    Clara Deser;Isla R. Simpson;Karen A. McKinnon;Adam S. Phillips

  • CESM1(WACCM) Stratospheric Aerosol Geoengineering Large Ensemble Project

    Simone Tilmes;Jadwiga H. Richter;Ben Kravitz;Douglas G. MacMartin

  • The Role of Eddies in Driving the Tropospheric Response to Stratospheric Heating Perturbations

    Isla R. Simpson;Michael Blackburn;Joanna D. Haigh

  • A Diagnosis of the Seasonally and Longitudinally Varying Midlatitude Circulation Response to Global Warming

    Isla R. Simpson;Tiffany A. Shaw;Richard Seager

  • The Role of the Stratosphere in Subseasonal to Seasonal Prediction: 1. Predictability of the Stratosphere

    Daniela I.V. Domeisen;Amy H. Butler;Amy H. Butler;Andrew J. Charlton‐Perez;Blanca Ayarzagüena;Blanca Ayarzagüena

  • Climate variability and change of Mediterranean-type climates

    Richard Seager;Timothy J. Osborn;Yochanan Kushnir;Isla R. Simpson

  • Causes of Increasing Aridification of the Mediterranean Region in Response to Rising Greenhouse Gases

    Richard Seager;Haibo Liu;Naomi L. Henderson;Isla R. Simpson

  • The Regional Hydroclimate Response to Stratospheric Sulfate Geoengineering and the Role of Stratospheric Heating

    Isla Simpson;Simone Tilmes;Jadwiga Richter;B. Kravitz;B. Kravitz

  • Progress in Simulating the Quasi‐Biennial Oscillation in CMIP Models

    Jadwiga H. Richter;James A. Anstey;Neal Butchart;Yoshio Kawatani

  • An Evaluation of the Large-Scale Atmospheric Circulation and Its Variability in CESM2 and Other CMIP Models

    Isla R. Simpson;Julio Bacmeister;Richard B. Neale;Cecile Hannay

  • Dynamical and Thermodynamical Causes of Large-Scale Changes in the Hydrological Cycle over North America in Response to Global Warming*

    Richard Seager;J. David Neelin;Isla R. Simpson;Haibo Liu

  • Isolating the Evolving Contributions of Anthropogenic Aerosols and Greenhouse Gases: A New CESM1 Large Ensemble Community Resource

    Clara Deser;Adam S. Phillips;Isla R. Simpson;Nan Rosenbloom

  • Causes of change in Northern Hemisphere winter meridional winds and regional hydroclimate

    Isla R. Simpson;Isla R. Simpson;Richard Seager;Mingfang Ting;Tiffany Ann Shaw;Tiffany Ann Shaw;Tiffany Ann Shaw

  • Ubiquity of human-induced changes in climate variability

    Keith Bradley Rodgers;Sun-Seon Lee;Nan Rosenbloom;Axel Timmermann

Frequent Co-Authors

Richard Seager
Richard Seager Lamont-Doherty Earth Observatory
Jadwiga H. Richter
Jadwiga H. Richter National Center for Atmospheric Research
Clara Deser
Clara Deser National Center for Atmospheric Research
Ben Kravitz
Ben Kravitz Indiana University
Simone Tilmes
Simone Tilmes National Center for Atmospheric Research
Amy H. Butler
Amy H. Butler National Oceanic and Atmospheric Administration
Michael J. Mills
Michael J. Mills National Center for Atmospheric Research
Flavio Lehner
Flavio Lehner Cornell University
Mingfang Ting
Mingfang Ting Lamont-Doherty Earth Observatory
Lorenzo M. Polvani
Lorenzo M. Polvani Columbia University

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