World's Best Scientists 2026 revealed!
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Environmental Sciences
France
2023

D-Index & Metrics

Environmental Sciences

D-Index
53
Citations
23773
World Ranking
4133
National Ranking
166

James C. Orr 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 James C. Orr 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: 132 publications — 31st percentile

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

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

James C. Orr 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 James C. Orr 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: 53 D-Index — 57th percentile

57% 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

  • 2023 - Research.com Environmental Sciences in France Leader Award

Overview

James C. Orr is affiliated with the French Alternative Energies and Atomic Energy Commission (CEA) in France. Their research primarily spans the fields of Earth and Planetary Sciences and Environmental Science, with a focus on subfields such as Oceanography, Global and Planetary Change, Atmospheric Science, Ecology, and Environmental Chemistry.

The scientist's work covers multiple main topics including Ocean Acidification Effects and Responses, Marine and Coastal Ecosystems, Atmospheric and Environmental Gas Dynamics, Marine Biology and Ecology Research, Arctic and Antarctic Ice Dynamics, Climate Variability and Models, and Coral and Marine Ecosystems Studies.

Frequent co-authors collaborate extensively with James C. Orr, including:

  • Lester Kwiatkowski
  • Olivier Torres
  • Laurent Bopp
  • Olivier Aumont
  • Jens Terhaar

Notable recent publications feature a range of topics related to ocean and atmospheric dynamics, including:

  • "Twenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections" (2020, Biogeosciences)
  • "Characterizing Mean and Extreme Diurnal Variability of Ocean CO2 System Variables Across Marine Environments" (2021, Geophysical Research Letters)
  • "Technical note: Interpreting pH changes" (2021, Biogeosciences)
  • "Arctic Ocean annual high in pCO2 could shift from winter to summer" (2022, Nature)
  • "Modified future diurnal variability of the global surface ocean CO2 system" (2022, Global Change Biology)

James C. Orr has contributed to publications in prominent scientific venues such as Biogeosciences, Geophysical Research Letters, Nature, Global Change Biology, and the Journal of Geophysical Research Oceans.

Best Publications

  • Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms

    James C. Orr;Victoria J. Fabry;Olivier Aumont;Laurent Bopp

  • Impacts of ocean acidification on marine fauna and ecosystem processes

    Victoria J. Fabry;Brad A. Seibel;Richard A. Feely;James C. Orr

  • The carbon cycle and atmospheric CO2

    IC Prentice;GD Farquhar;Mjr Fasham;ML Goulden

  • Multiple stressors of ocean ecosystems in the 21st century: projections with CMIP5 models

    Laurent Bopp;L. Resplandy;James C. Orr;Scott C. Doney

  • Twenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections

    Lester Kwiatkowski;Olivier Torres;Laurent Bopp;Olivier Aumont

  • Potential impact of climate change on marine export production

    Laurent Bopp;Patrick Monfray;Olivier Aumont;Jean Louis Dufresne

  • A perturbation simulation of CO2 uptake in an ocean general circulation model

    Jorge L. Sarmiento;James C. Orr;Ulrich Siegenthaler

  • Will human-induced changes in seawater chemistry alter the distribution of deep-sea scleractinian corals?

    John M. Guinotte;John M. Guinotte;James G Orr;Stephen D. Cairns;André Freiwald

  • Positive feedback between future climate change and the carbon cycle

    Pierre Friedlingstein;Laurent Bopp;Philippe Ciais;Jean-Louis Dufresne

  • OMIP contribution to CMIP6: experimental and diagnostic protocol for the physical component of the Ocean Model Intercomparison Project

    Stephen M. Griffies;Gokhan Danabasoglu;Paul J. Durack;Alistair J. Adcroft

  • Estimates of anthropogenic carbon uptake from four three‐dimensional global ocean models

    James C. Orr;Ernst Maier-Reimer;Uwe Mikolajewicz;Patrick Monfray

  • Routine uncertainty propagation for the marine carbon dioxide system

    James C. Orr;Jean-Marie Epitalon;Andrew G. Dickson;Jean-Pierre Gattuso;Jean-Pierre Gattuso

  • Predicting suitable habitat for the cold-water coral Lophelia pertusa (Scleractinia)

    Andrew J. Davies;Max Wisshak;James C. Orr;J. Murray Roberts

  • Three‐dimensional simulations of the impact of Southern Ocean nutrient depletion on atmospheric CO2 and ocean chemistry

    Jorge L. Sarmiento;James C. Orr

  • Evaluating Global Ocean Carbon Models: The Importance of Realistic Physics

    Scott C. Doney;Keith Lindsay;K. Caldeira;J.-M. Campin;J.-M. Campin

  • Impact of circulation on export production, dissolved organic matter, and dissolved oxygen in the ocean: Results from Phase II of the Ocean Carbon-cycle Model Intercomparison Project (OCMIP-2)

    Raymond G. Najjar;X. Jin;F. Louanchi;Olivier Aumont

  • Evaluation of ocean carbon cycle models with data-based metrics

    K. Matsumoto;Jorge L. Sarmiento;Robert M. Key;Olivier Aumont

  • Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models

    Jean-Claude Dutay;John L. Bullister;Scott C. Doney;James C. Orr

  • Biogeochemical protocols and diagnostics for the CMIP6 Ocean Model Intercomparison Project (OMIP)

    James C. Orr;Raymond G. Najjar;Olivier Aumont;Laurent Bopp

  • Interannual variability of the oceanic sink of CO2 from 1979 through 1997

    Corinne Le Quéré;James C. Orr;Patrick Monfray;Olivier Aumont

  • Recent and Future Changes in Ocean Carbonate Chemistry

    James C. Orr

Frequent Co-Authors

Fortunat Joos
Fortunat Joos University of Bern
Laurent Bopp
Laurent Bopp École Normale Supérieure
Patrick Monfray
Patrick Monfray Centre national de la recherche scientifique, CNRS
Andrew Yool
Andrew Yool National Oceanography Centre
Ernst Maier-Reimer
Ernst Maier-Reimer Max Planck Society
Olivier Aumont
Olivier Aumont Université Paris Cité
Richard J. Matear
Richard J. Matear CSIRO Ocean and Atmosphere
Scott C. Doney
Scott C. Doney University of Virginia
Marion Gehlen
Marion Gehlen French Alternative Energies and Atomic Energy Commission (CEA)
Ken Caldeira
Ken Caldeira Carnegie Institution for Science

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