World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
77
Citations
15400
World Ranking
1155
National Ranking
502

Barry Lefer 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 Barry Lefer 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: 298 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

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

Barry Lefer 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 Barry Lefer 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: 77 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

Barry Lefer is affiliated with the National Aeronautics and Space Administration in the United States. Their research primarily focuses on Environmental Science and Earth and Planetary Sciences, with particular expertise in Atmospheric Science, Health, Toxicology and Mutagenesis, Global and Planetary Change, Environmental Engineering, and Aerospace Engineering.

Their work covers several main topics, including Atmospheric chemistry and aerosols, Air Quality and Health Impacts, Air Quality Monitoring and Forecasting, Atmospheric aerosols and clouds, Atmospheric Ozone and Climate, Fire effects on ecosystems, and Atmospheric and Environmental Gas Dynamics.

Barry Lefer has published in a variety of scientific journals, with frequent appearances in:

  • Journal of Geophysical Research Atmospheres
  • Bulletin of the American Meteorological Society
  • Elementa Science of the Anthropocene
  • Journal of Atmospheric and Oceanic Technology
  • Atmosphere

Their recent publications include:

  • The Korea-United States Air Quality (KORUS-AQ) field study, 2021, Elementa Science of the Anthropocene
  • Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ), 2022, Journal of Geophysical Research Atmospheres
  • Measurements of Total OH Reactivity During CalNex-LA, 2021, Journal of Geophysical Research Atmospheres
  • An Automated Common Algorithm for Planetary Boundary Layer Retrievals Using Aerosol Lidars in Support of the U.S. EPA Photochemical Assessment Monitoring Stations Program, 2020, Journal of Atmospheric and Oceanic Technology
  • Space-Borne Monitoring of NOx Emissions from Cement Kilns in South Korea, 2020, Atmosphere

Barry Lefer has collaborated frequently with several coauthors, including:

  • J. H. Crawford
  • Jinsoo Park
  • Jack E. Dibb
  • R. A. Washenfelder
  • James Flynn

Best Publications

  • An overview of snow photochemistry: evidence, mechanisms and impacts

    A. M. Grannas;A. E. Jones;J. Dibb;M. Ammann

  • New Era of Air Quality Monitoring from Space: Geostationary Environment Monitoring Spectrometer (GEMS)

    Jhoon Kim;Ukkyo Jeong;Myoung Hwan Ahn;Jae H. Kim

  • High winter ozone pollution from carbonyl photolysis in an oil and gas basin

    Peter M. Edwards;Steven S. Brown;James M. Roberts;Ravan Ahmadov

  • Organic aerosol composition and sources in Pasadena, California, during the 2010 CalNex campaign

    P. L. Hayes;A. M. Ortega;M. J. Cubison;K. D. Froyd;K. D. Froyd

  • Atmospheric oxidation capacity in the summer of Houston 2006: Comparison with summer measurements in other metropolitan studies

    Jingqiu Mao;Xinrong Ren;Shuang Chen;William H. Brune

  • The Korea–United States Air Quality (KORUS-AQ) field study

    James H. Crawford;Joon-Young Ahn;Jassim Al-Saadi;Limseok Chang

  • Climate change accelerates growth of urban trees in metropolises worldwide

    Hans Pretzsch;Peter Biber;Enno Uhl;Jens Dahlhausen

  • Testing fast photochemical theory during TRACE‐P based on measurements of OH, HO2, and CH2O

    Jennifer R. Olson;J. H. Crawford;G. Chen;A. Fried

  • Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011

    J. L. Fry;D. C. Draper;K. J. Zarzana;K. J. Zarzana;P. Campuzano-Jost;P. Campuzano-Jost

  • Unexpected high levels of NO observed at South Pole

    D. Davis;J. B. Nowak;G. Chen;M. Buhr

  • Regional-scale chemical transport modeling in support of the analysis of observations obtained during the TRACE-P experiment

    G. R. Carmichael;Y. Tang;G. Kurata;I. Uno

  • Understanding the role of the ground surface in HONO vertical structure: High resolution vertical profiles during NACHTT‐11

    Trevor C. VandenBoer;Trevor C. VandenBoer;Steven S. Brown;Jennifer G. Murphy;William C. Keene

  • Atmospheric oxidation chemistry and ozone production: Results from SHARP 2009 in Houston, Texas

    Xinrong Ren;Xinrong Ren;Diana van Duin;Maria Cazorla;Maria Cazorla;Shuang Chen

  • Vertically resolved measurements of nighttime radical reservoirs in Los Angeles and their contribution to the urban radical budget.

    Cora J. Young;Cora J. Young;Rebecca A. Washenfelder;Rebecca A. Washenfelder;James M. Roberts;Levi H. Mielke

  • Daytime HONO vertical gradients during SHARP 2009 in Houston, TX

    K. W. Wong;C. Tsai;B. Lefer;C. Haman

  • Chemical characteristics of continental outflow from Asia to the troposphere over the western Pacific Ocean during February‐March 1994: Results from PEM‐West B

    R. W. Talbot;J. E. Dibb;B. L. Lefer;J. D. Bradshaw

  • Airborne and ground-based observations of a weekend effect in ozone, precursors, and oxidation products in the California South Coast Air Basin

    I. B. Pollack;I. B. Pollack;T. B. Ryerson;M. Trainer;D. D. Parrish

  • Modeling chemistry in and above snow at Summit, Greenland – Part 1: Model description and results

    Jennie L. Thomas;Jennie L. Thomas;J. Stutz;B. Lefer;L. G. Huey

  • Chlorine as a primary radical: evaluation of methods to understand its role in initiation of oxidative cycles

    C. J. Young;C. J. Young;C. J. Young;R. A. Washenfelder;R. A. Washenfelder;P. M. Edwards;P. M. Edwards;D. D. Parrish

  • South Pole NOx Chemistry: an assessment of factors controlling variability and absolute levels

    D. Davis;G. Chen;G. Chen;M. Buhr;J. Crawford

  • Measurements of Hydroxyl and Hydroperoxy Radicals during CalNex‐LA: Model Comparisons and Radical Budgets

    S. M. Griffith;S. M. Griffith;R. F. Hansen;R. F. Hansen;S. Dusanter;S. Dusanter;S. Dusanter;V. Michoud;V. Michoud;V. Michoud

  • Meteorology influencing springtime air quality, pollution transport, and visibility in Korea

    David A. Peterson;Edward J. Hyer;Sang-Ok Han;James H. Crawford

  • Regional-scale chemical transport modeling in support of the analysis of observations obtained during the TRACE-P experiment : NASA global tropospheric experiment transport and chemical evolution over the pacific (TRACE-P): Measurements and analysis (TRACEP1)

    G. R. Carmichael;Y. Tang;G. Kurata;I. Uno

Frequent Co-Authors

Donald R. Blake
Donald R. Blake University of California, Irvine
Richard E. Shetter
Richard E. Shetter National Center for Atmospheric Research
Jack E. Dibb
Jack E. Dibb University of New Hampshire
Jessica B. Gilman
Jessica B. Gilman National Oceanic and Atmospheric Administration
Jochen Stutz
Jochen Stutz University of California, Los Angeles
Bernhard Rappenglück
Bernhard Rappenglück University of Houston
Robert W. Talbot
Robert W. Talbot University of Houston
James H. Crawford
James H. Crawford Langley Research Center
Patrick R. Veres
Patrick R. Veres National Oceanic and Atmospheric Administration
Carsten Warneke
Carsten Warneke National Oceanic and Atmospheric Administration

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