World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
72
Citations
23394
World Ranking
1477
National Ranking
628

Ralph Dubayah 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 Ralph Dubayah 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: 292 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.

Ralph Dubayah 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 Ralph Dubayah 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: 72 D-Index — 85th percentile

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

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

Overview

Ralph Dubayah is affiliated with the University of Maryland, College Park in the United States. Their research primarily focuses on environmental science, with a specific emphasis on remote sensing and LiDAR applications as well as related ecological and environmental modeling fields.

The scientist's publication record encompasses various topics including:

  • Remote Sensing and LiDAR Applications
  • Remote Sensing in Agriculture
  • Forest Ecology and Management
  • Species Distribution and Climate Change
  • Forest Management and Policy
  • Fire Effects on Ecosystems
  • Adaptive Optics and Wavefront Sensing

Dubayah's frequent co-authors include:

  • John Armston
  • Laura Duncanson
  • Hao Tang
  • Temilola Fatoyinbo
  • G. C. Hurtt

They have contributed to multiple peer-reviewed journals and major publication venues such as:

  • Environmental Research Letters
  • Remote Sensing of Environment
  • Zenodo (CERN European Organization for Nuclear Research)
  • Oak Ridge National Laboratory Distributed Active Archive Center for Biogeochemical Dynamics
  • Nature Communications

Selected recent papers illustrating key research contributions include:

  • Mapping global forest canopy height through integration of GEDI and Landsat data, 2020, Remote Sensing of Environment
  • The Global Ecosystem Dynamics Investigation: High-resolution laser ranging of the Earth's forests and topography, 2020, Science of Remote Sensing
  • Aboveground biomass density models for NASA's Global Ecosystem Dynamics Investigation (GEDI) lidar mission, 2022, Remote Sensing of Environment
  • Biomass estimation from simulated GEDI, ICESat-2 and NISAR across environmental gradients in Sonoma County, California, 2020, Remote Sensing of Environment
  • Global canopy height regression and uncertainty estimation from GEDI LIDAR waveforms with deep ensembles, 2021, Remote Sensing of Environment

In addition to journal articles, Dubayah has authored book publications including a contribution to Ghent University titled "Aboveground Woody Biomass Product Validation Good Practices Protocol" published in 2021.

Their scientific work spans various subfields within environmental science such as:

  • Environmental Engineering
  • Ecology
  • Global and Planetary Change
  • Nature and Landscape Conservation
  • Ecological Modeling

Best Publications

  • Estimated carbon dioxide emissions from tropical deforestation improved by carbon-density maps

    A. Baccini;S. J. Goetz;W. S. Walker;N. T. Laporte

  • Mapping global forest canopy height through integration of GEDI and Landsat data

    Peter Potapov;Xinyuan Li;Andres Hernandez-Serna;Alexandra Tyukavina

  • The Global Ecosystem Dynamics Investigation: High-resolution laser ranging of the Earth’s forests and topography

    Ralph Dubayah;James Bryan Blair;Scott Goetz;Lola Fatoyinbo

  • Lidar remote sensing for forestry.

    Ralph O. Dubayah;Jason B. Drake

  • Estimation of tropical forest structural characteristics using large-footprint lidar

    Jason B. Drake;Ralph O. Dubayah;David B. Clark;Robert G. Knox

  • Classification trees: an alternative to traditional land cover classifiers

    M. Hansen;R. Dubayah;R. Defries

  • A meta-analysis of terrestrial aboveground biomass estimation using lidar remote sensing

    S.G. Zolkos;S.J. Goetz;R. Dubayah

  • Topographic solar radiation models for GIS

    Ralph Dubayah;Paul M. Rich

  • Mapping forest structure for wildlife habitat analysis using multi-sensor (LiDAR, SAR/InSAR, ETM+, Quickbird) synergy

    Peter Hyde;Ralph Dubayah;Wayne Walker;J. Bryan Blair

  • Aboveground biomass density models for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar mission

    Unknown

  • Laser remote sensing of canopy habitat heterogeneity as a predictor of bird species richness in an eastern temperate forest, USA

    Scott Goetz;Daniel Steinberg;Ralph Dubayah;Bryan Blair

  • Above-ground biomass estimation in closed canopy Neotropical forests using lidar remote sensing: factors affecting the generality of relationships

    Jason B. Drake;Robert G. Knox;Ralph O. Dubayah;David B. Clark

  • Sensitivity of large-footprint lidar to canopy structure and biomass in a neotropical rainforest

    Jason B Drake;Ralph O Dubayah;Robert G Knox;David B Clark

  • Remote sensing of vegetation 3-D structure for biodiversity and habitat: Review and implications for lidar and radar spaceborne missions

    K. M. Bergen;S. J. Goetz;R. O. Dubayah;G. M. Henebry

  • Estimation of tropical forest height and biomass dynamics using lidar remote sensing at La Selva, Costa Rica

    R. O. Dubayah;S. L. Sheldon;D. B. Clark;M. A. Hofton

  • Advances in remote sensing technology and implications for measuring and monitoring forest carbon stocks and change

    Scott Goetz;Ralph Dubayah

  • Modeling lidar waveforms in heterogeneous and discrete canopies

    W. Ni-Meister;D.L.B. Jupp;R. Dubayah

  • Mapping forest structure for wildlife habitat analysis using waveform lidar: Validation of montane ecosystems

    P. Hyde;R. Dubayah;B. Peterson;J.B. Blair

  • Integrating waveform lidar with hyperspectral imagery for inventory of a northern temperate forest

    Jeanne E. Anderson;Lucie C. Plourde;Mary E. Martin;Bobby H. Braswell

  • Evaluation of the snow-covered area data product from MODIS

    Edwin P. Maurer;Joshua D. Rhoads;Ralph O. Dubayah;Dennis P. Lettenmaier

  • Mapping biomass and stress in the Sierra Nevada using lidar and hyperspectral data fusion

    Anu Swatantran;Ralph Dubayah;Dar A Roberts;Michelle Hofton

Frequent Co-Authors

George C. Hurtt
George C. Hurtt University of Maryland, College Park
John Armston
John Armston University of Maryland, College Park
Michelle Hofton
Michelle Hofton University of Maryland, College Park
Scott J. Goetz
Scott J. Goetz Northern Arizona University
James R. Kellner
James R. Kellner Brown University
Marc Simard
Marc Simard California Institute of Technology
Sean P. Healey
Sean P. Healey US Forest Service
David B. Clark
David B. Clark University of Missouri–St. Louis
Chengquan Huang
Chengquan Huang University of Maryland, College Park
Scott B. Luthcke
Scott B. Luthcke National Aeronautics and Space Administration

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