World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
45
Citations
8975
World Ranking
6337
National Ranking
225

O. T. Denmead 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 O. T. Denmead 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: 92 publications — 9th percentile

9% of scientists in this discipline score the same or lower.

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

O. T. Denmead 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 O. T. Denmead 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: 45 D-Index — 36th percentile

36% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 1991 - Fellow of the Soil Science Society of America (SSSA)
  • 1989 - Fellow of the American Society of Agronomy (ASA)

Overview

O. T. Denmead is affiliated with the Commonwealth Scientific and Industrial Research Organisation in Australia. Their research primarily falls within the broad domain of Environmental Science, with specific focus on subfields including Global and Planetary Change, Spectroscopy, Atmospheric Science, Environmental Chemistry, and Process Chemistry and Technology.

The scientist's recent publications reflect active engagement in topics related to atmospheric and environmental gas dynamics, spectroscopy and laser applications, atmospheric chemistry and aerosols, soil and water nutrient dynamics, odor and emission control technologies, as well as agriculture sustainability and environmental impact.

  • Performance of open-path lasers and Fourier transform infrared spectroscopic systems in agriculture emissions research (2022), published in Atmospheric measurement techniques
  • Ammonia emissions from irrigated pastures on Solonetz in Victoria, Australia (2020), published in Geoderma Regional

Frequently collaborating with other researchers, Denmead's notable coauthors include Mei Bai, D. Turner, Robert Edis, Deli Chen, and Zoë Loh. These collaborations span multiple research projects and contribute to the scientist's work on environmental gas dynamics and related spectroscopic techniques.

  • Mei Bai
  • D. Turner
  • Robert Edis
  • Deli Chen
  • Zoë Loh

Denmead has contributed to publications in venues such as Atmospheric measurement techniques and Geoderma Regional. These journals align with their subfields of study and highlight an emphasis on measurement technologies and regional environmental assessments.

  • Atmospheric measurement techniques
  • Geoderma Regional

The scientist's research explores several key topics:

  • Atmospheric and Environmental Gas Dynamics
  • Spectroscopy and Laser Applications
  • Atmospheric Chemistry and Aerosols
  • Soil and Water Nutrient Dynamics
  • Odor and Emission Control Technologies
  • Agriculture Sustainability and Environmental Impact

Recognition in the scientific community includes being awarded the status of Fellow by two major organizations: the Soil Science Society of America (SSSA) in 1991 and the American Society of Agronomy (ASA) in 1989. These fellowships indicate professional standing within soil science and agronomy disciplines relevant to their research interests.

Best Publications

  • Availability of Soil Water to Plants as Affected by Soil Moisture Content and Meteorological Conditions1

    O. T. Denmead;R. H. Shaw

  • Ammonia Emission From Mineral Fertilizers and Fertilized Crops

    Sven G. Sommer;Jan K. Schjoerring;O.T. Denmead

  • Flux-Gradient Relationships in a Forest Canopy

    O. T. Denmead;E. F. Bradley

  • Approaches to measuring fluxes of methane and nitrous oxide between landscapes and the atmosphere

    O. T. Denmead

  • Volatilization of ammonia

    J. R. Freney;J. R. Simpson;O. T. Denmead

  • Micrometeorological methods for measuring gaseous losses of nitrogen in the field

    O. T. Denmead

  • Carbon dioxide and methane fluxes from an intermittently flooded paddy field

    Akira Miyata;Ray Leuning;Owen Thomas Denmead;Joon Kim

  • A closed ammonia cycle within a plant canopy

    O.T. Denmead;J.R. Freney;J.R. Simpson

  • Direct measurements of methane emissions from grazing and feedlot cattle.

    L A Harper;O T Denmead;J R Freney;F M Byers

  • A sampler for measuring atmospheric ammonia flux

    R. Leuning;J.R. Freney;O.T. Denmead;J.R. Simpson

  • Chamber Systems for Measuring Nitrous Oxide Emission from Soils in the Field

    O. T. Denmead

  • Ammonia flux into the atmosphere from a grazed pasture.

    O. T. Denmead;J. R. Simpson;J. R. Freney

  • Emissions of methane and nitrous oxide from Australian sugarcane soils.

    O. T. Denmead;B.C.T. Macdonald;G. Bryant;Travis A. Naylor

  • Dynamics of Ammonia Volatilization during Furrow Irrigation of Maize

    O. T. Denmead;J. R. Freney;J. R. Simpson

  • A Direct Field Measurement of Ammonia Emission After Injection of Anhydrous Ammonia

    O. T. Denmead;J. R. Simpson;J. R. Freney

  • Rainfall interception and evaporation from soil below a wheat canopy

    R. Leuning;A.G. Condon;F.X. Dunin;S. Zegelin

  • Ammonia and Nitrous Oxide Losses Following Applications of Ammonium Sulfate to Flooded Rice

    JR Freney;OT Denmead;I Watanabe;ET Craswell

  • Challenges in linking atmospheric CO2 concentrations to fluxes at local and regional scales.

    M. R. Raupach;O. T. Denmead;F. X. Dunin

  • Estimating ammonia volatilization from flooded rice fields by simplified techniques

    J. R. Freney;R. Leuning;J. R. Simpson;O. T. Denmead

  • Studies of nitrous oxide emission from a grass sward

    O. T. Denmead;J. R. Freney;J. R. Simpson

Frequent Co-Authors

Ray Leuning
Ray Leuning CSIRO Marine and Atmospheric Research
J. R. Freney
J. R. Freney Commonwealth Scientific and Industrial Research Organisation
David W. T. Griffith
David W. T. Griffith University of Wollongong
Deli Chen
Deli Chen University of Melbourne
Lowry A. Harper
Lowry A. Harper Agricultural Research Service
Joon Kim
Joon Kim Seoul National University
Ian E. Galbally
Ian E. Galbally Commonwealth Scientific and Industrial Research Organisation
Jorg M. Hacker
Jorg M. Hacker Flinders University
Enli Wang
Enli Wang Commonwealth Scientific and Industrial Research Organisation
C. P. Meyer
C. P. Meyer CSIRO Marine and Atmospheric Research

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