World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
38
Citations
5098
World Ranking
8686
National Ranking
3102

John W. Pohlman 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 John W. Pohlman 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: 282 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: 26 scientists 501–510 publications: 17 scientists 511–520 publications: 19 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 681–689 publications: 4 scientists 690+ publications: 100 scientists
41 publications 690+

This scientist: 124 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 690 publications or more.

John W. Pohlman 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 John W. Pohlman 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: 198 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: 20 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: 9 scientists 126+ D-Index: 92 scientists
30 D-Index 126+

This scientist: 38 D-Index — 12th percentile

12% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 126 D-Index or more.

Overview

John W. Pohlman is affiliated with the United States Geological Survey in the United States. Their research predominantly covers Earth and Planetary Sciences, with a focus on Environmental Science and several related subfields including Environmental Chemistry, Geophysics, Ocean Engineering, Oceanography, and Atmospheric Science.

The scientist has contributed extensively to topics such as Methane Hydrates and Related Phenomena, Seismic Imaging and Inversion Techniques, Reservoir Engineering and Simulation Methods, Geophysics and Gravity Measurements, Geology and Paleoclimatology Research, Atmospheric and Environmental Gas Dynamics, and Hydrocarbon Exploration and Reservoir Analysis.

Pohlman's publication record includes papers in a variety of journals and venues. Notable recent works include:

  • "Metabolic flexibility of aerobic methanotrophs under anoxic conditions in Arctic lake sediments," 2021, The ISME Journal
  • "Contribution of deep-sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from radiocarbon and stable isotope geochemistry," 2021, Chemical Geology
  • "Discrete Sample Introduction Module for Quantitative and Isotopic Analysis of Methane and Other Gases by Cavity Ring-Down Spectroscopy," 2021, Environmental Science & Technology
  • "Methane oxidation dynamics in a karst subterranean estuary," 2020, Geochimica et Cosmochimica Acta
  • "Oxygenation of a karst subterranean estuary during a tropical cyclone: mechanisms and implications for the carbon cycle," 2022, Limnology and Oceanography

Pohlman has collaborated frequently with researchers including Michael Riedel, Timothy S. Collett, Mitchell J Malone, Gilles Guèrin, and Fumio Akiba. Their co-authorship records show significant recurring partnerships, each contributing to over twenty joint publications.

Their primary publication venues reflect diverse interests, with the largest number of publications hosted on Zenodo (CERN European Organization for Nuclear Research), followed by contributions to The ISME Journal, Chemical Geology, Environmental Science & Technology, and Geochimica et Cosmochimica Acta.

Best Publications

  • Complex gas hydrate from the Cascadia margin

    Hailong Lu;Yu-taek Seo;Jong-won Lee;Igor Moudrakovski

  • Nonequilibrium clumped isotope signals in microbial methane

    David T. Wang;David T. Wang;Danielle S. Gruen;Danielle S. Gruen;Barbara Sherwood Lollar;Kai-Uwe Hinrichs

  • Methane hydrate formation in turbidite sediments of northern Cascadia, IODP Expedition 311

    M.E. Torres;A.M. Tréhu;N. Cespedes;M. Kastner

  • Carbon isotope equilibration during sulphate-limited anaerobic oxidation of methane

    Marcos Yukio Yoshinaga;Thomas Holler;Tobias Goldhammer;Gunter Wegener

  • India National Gas Hydrate Program Expedition 02 Summary of Scientific Results: Gas hydrate systems along the eastern continental margin of India

    Timothy S. Collett;Ray Boswell;William F. Waite;Pushpendra Kumar

  • The stable carbon isotope biogeochemistry of acetate and other dissolved carbon species in deep subseafloor sediments at the northern Cascadia Margin

    Verena B. Heuer;John W. Pohlman;Marta E. Torres;Marcus Elvert

  • The effect of diagenesis and fluid migration on rare earth element distribution in pore fluids of the northern Cascadia accretionary margin

    Ji-Hoon Kim;Marta E. Torres;Brian A. Haley;Miriam Kastner

  • A simple headspace equilibration method for measuring dissolved methane

    Cédric Magen;Cédric Magen;Laura L. Lapham;John W. Pohlman;Kathleen Marshall

  • A stable isotope study of organic cycling and the ecology of an anchialine cave ecosystem

    Pohlman Jw;Iliffe Tm;Cifuentes La

  • Methane sources and production in the northern Cascadia margin gas hydrate system

    John Pohlman;Masanori Kaneko;Verena B. Heuer;Richard B. Coffin

  • The origin of thermogenic gas hydrates on the northern Cascadia Margin as inferred from isotopic (13C/12C and D/H) and molecular composition of hydrate and vent gas

    John W. Pohlman;John W. Pohlman;Elizabeth A. Canuel;N. Ross Chapman;George D. Spence

  • Methane hydrate-bearing seeps as a source of aged dissolved organic carbon to the oceans

    John W. Pohlman;James E. Bauer;William F. Waite;Christopher L. Osburn

  • Methane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystem.

    David Brankovits;John W. Pohlman;John W. Pohlman;Helge Niemann;Mary Beth Leigh

  • Radiocarbon dating of a very large African baobab.

    Adrian Patrut;Karl F von Reden;Daniel A Lowy;Andries H Alberts

  • Shifts in Identity and Activity of Methanotrophs in Arctic Lake Sediments in Response to Temperature Changes

    Ruo He;Ruo He;Matthew J. Wooller;John W. Pohlman;John Quensen

  • Greenhouse gas emissions from diverse Arctic Alaskan lakes are dominated by young carbon

    Clayton D. Elder;Xiaomei Xu;Jennifer Walker;Jordan L. Schnell;Jordan L. Schnell

  • Diversity of active aerobic methanotrophs along depth profiles of arctic and subarctic lake water column and sediments.

    Ruo He;Matthew J Wooller;John W Pohlman;John Quensen

  • Rapid sea level rise and ice sheet response to 8,200-year climate event

    Thomas M. Cronin;P. R. Vogt;Debra A. Willard;Robert C. Thunell

  • Thermogenic gas hydrates in the northern Cascadia margin

    Ross Chapman;John Pohlman;Rick Coffin;Jeff Chanton

  • Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico

    John W. Pohlman;Carolyn D. Ruppel;Deborah R. Hutchinson;R. Downer

Frequent Co-Authors

Richard B. Coffin
Richard B. Coffin Texas A&M University – Corpus Christi
Michael Riedel
Michael Riedel GEOMAR Helmholtz Centre for Ocean Research Kiel
Matthew J. Wooller
Matthew J. Wooller University of Alaska Fairbanks
Marta E Torres
Marta E Torres Oregon State University
Kai-Uwe Hinrichs
Kai-Uwe Hinrichs University of Bremen
Carolyn D. Ruppel
Carolyn D. Ruppel United States Geological Survey
Marcus Elvert
Marcus Elvert University of Bremen
Mary Beth Leigh
Mary Beth Leigh University of Alaska Fairbanks
Thomas M. Iliffe
Thomas M. Iliffe Texas A&M University at Galveston
Miriam Kastner
Miriam Kastner University of California, San Diego

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