World's Best Scientists 2026 revealed!

D-Index & Metrics

Environmental Sciences

D-Index
48
Citations
8973
World Ranking
5527
National Ranking
2022

Mohamad Hejazi 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 Mohamad Hejazi 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: 168 publications — 51st percentile

51% of scientists in this discipline score the same or lower.

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

Mohamad Hejazi 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 Mohamad Hejazi 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: 48 D-Index — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Overview

Mohamad Hejazi is affiliated with the Pacific Northwest National Laboratory in the United States. Their research primarily focuses on environmental science and engineering, with substantial contributions to areas relating to water resources and energy systems.

The scientist's recent publications include works in high-impact journals, reflecting a broad scope of interdisciplinary studies. Notable papers include:

  • Evaluating the economic impact of water scarcity in a changing world, 2021, Nature Communications
  • Impacts of climate change on energy systems in global and regional scenarios, 2020, Nature Energy
  • Global land use for 2015-2100 at 0.05° resolution under diverse socioeconomic and climate scenarios, 2020, Scientific Data
  • Future changes in the trading of virtual water, 2020, Nature Communications
  • Global urban growth between 1870 and 2100 from integrated high resolution mapped data and urban dynamic modeling, 2021, Communications Earth & Environment

The scientist has collaborated frequently with peers in their field. Frequent coauthors include:

  • Gokul Iyer
  • Thomas Wild
  • Chris Vernon
  • Neal T. Graham
  • Son H. Kim

Publications by Mohamad Hejazi are often found in several prominent venues such as:

  • Environmental Research Letters
  • Nature Communications
  • Zenodo (CERN European Organization for Nuclear Research)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)
  • SSRN Electronic Journal

The main fields of study for the scientist include Environmental Science with 78 publications and Engineering with 35 publications. Their subfields of study demonstrate a focus on:

  • Water Science and Technology
  • Ocean Engineering
  • Environmental Engineering
  • Pollution
  • Global and Planetary Change

Key topics central to their research work encompass:

  • Water-Energy-Food Nexus Studies
  • Water resources management and optimization
  • Energy and Environment Impacts
  • Environmental Impact and Sustainability
  • Atmospheric and Environmental Gas Dynamics
  • Hybrid Renewable Energy Systems
  • Reservoir Engineering and Simulation Methods

Best Publications

  • Quantifying the relative contribution of the climate and direct human impacts on mean annual streamflow in the contiguous United States

    Dingbao Wang;Mohamad I. Hejazi

  • Evaluating the economic impact of water scarcity in a changing world.

    Flannery Dolan;Jonathan Lamontagne;Robert Link;Mohamad Hejazi

  • GCAM v5.1: representing the linkages between energy, water, land, climate, and economic systems

    Katherine Calvin;Pralit Patel;Leon Clarke;Ghassem Asrar

  • Impacts of climate change on energy systems in global and regional scenarios

    Seleshi G. Yalew;Seleshi G. Yalew;Seleshi G. Yalew;Michelle T. H. van Vliet;Michelle T. H. van Vliet;David E. H. J. Gernaat;David E. H. J. Gernaat;Fulco Ludwig

  • Environmental co-benefits and adverse side-effects of alternative power sector decarbonization strategies

    Gunnar Luderer;Michaja Pehl;Anders Arvesen;Thomas Gibon

  • Long-term global water projections using six socioeconomic scenarios in an integrated assessment modeling framework

    Mohamad I. Hejazi;James A. Edmonds;Leon E. Clarke;G. Page Kyle

  • Climate change impact on meteorological, agricultural, and hydrological drought in central Illinois

    Dingbao Wang;Dingbao Wang;Mohamad Hejazi;Mohamad Hejazi;Ximing Cai;Albert J. Valocchi

  • Reconstruction of global gridded monthly sectoral water withdrawals for 1971–2010 and analysis of their spatiotemporal patterns

    Zhongwei Huang;Zhongwei Huang;Mohamad Hejazi;Mohamad Hejazi;Xinya Li;Qiuhong Tang

  • Global land use for 2015–2100 at 0.05° resolution under diverse socioeconomic and climate scenarios

    Min Chen;Chris R. Vernon;Neal T. Graham;Mohamad Hejazi

  • 21st century United States emissions mitigation could increase water stress more than the climate change it is mitigating

    Mohamad I. Hejazi;Nathalie Voisin;Lu Liu;Lisa M. Bramer

  • A Comprehensive View of Global Potential for Hydro-generated Electricity

    Yuyu Zhou;Mohamad I. Hejazi;Steven J. Smith;James A. Edmonds

  • Impacts of climate change, policy and Water-Energy-Food nexus on hydropower development

    Xiao Zhang;Hong-Yi Li;Hong-Yi Li;Zhiqun Daniel Deng;Claudia Ringler

  • Investigating the Nexus of Climate, Energy, Water, and Land at Decision-Relevant Scales: The Platform for Regional Integrated Modeling and Analysis (PRIMA)

    Ian Kraucunas;Leon Clarke;James Dirks;John Hathaway

  • Integrated assessment of global water scarcity over the 21st century under multiple climate change mitigation policies

    Mohamad I. Hejazi;James A. Edmonds;Leon E. Clarke;G. Page Kyle

  • Climate impacts on hydropower and consequences for global electricity supply investment needs

    Sean Wd Turner;Mohamad I. Hejazi;Son H. Kim;Leon E. Clarke

  • Water demands for electricity generation in the U.S.: Modeling different scenarios for the water–energy nexus

    Lu Liu;Mohamad I. Hejazi;Pralit L. Patel;G. Page Kyle

  • Global urban growth between 1870 and 2100 from integrated high resolution mapped data and urban dynamic modeling

    Xuecao Li;Xuecao Li;Yuyu Zhou;Mohamad Hejazi;Marshall Wise

  • Influence of Groundwater Extraction Costs and Resource Depletion Limits on Simulated Global Nonrenewable Water Withdrawals Over the Twenty-First Century

    Sean W. D. Turner;Sean W. D. Turner;Mohamad Hejazi;Catherine Yonkofski;Son H. Kim

  • Impacts of Urbanization and Climate Variability on Floods in Northeastern Illinois

    Mohamad I. Hejazi;Momcilo Markus

  • Future changes in the trading of virtual water

    Neal T. Graham;Neal T. Graham;Mohamad I. Hejazi;Son H. Kim;Evan G. R. Davies

  • Input variable selection for water resources systems using a modified minimum redundancy maximum relevance (mMRMR) algorithm

    Mohamad I. Hejazi;Ximing Cai

  • The role of hydrologic information in reservoir operation – Learning from historical releases

    Mohamad I. Hejazi;Ximing Cai;Benjamin L. Ruddell

Frequent Co-Authors

Leon Clarke
Leon Clarke University of Maryland, College Park
Fernando Miralles-Wilhelm
Fernando Miralles-Wilhelm University of Maryland, College Park
Page Kyle
Page Kyle Pacific Northwest National Laboratory
Katherine Calvin
Katherine Calvin Pacific Northwest National Laboratory
Marshall Wise
Marshall Wise Pacific Northwest National Laboratory
James A. Edmonds
James A. Edmonds Pacific Northwest National Laboratory
Hongyi Li
Hongyi Li University of Houston
Ximing Cai
Ximing Cai University of Illinois at Urbana-Champaign
Maoyi Huang
Maoyi Huang Pacific Northwest National Laboratory
Lai-yung Ruby Leung
Lai-yung Ruby Leung Pacific Northwest National Laboratory

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Related Online Degrees & Career Pathways

Studying Environmental Sciences in the USA opens doors to a variety of related online degrees and career options. For those seeking flexibility and cost-effectiveness, exploring some of the most affordable online general studies degree programs can be a smart start. These programs often provide a broad foundation that complements specialized environmental topics.

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For those interested in the scientific side of the environment, pursuing a geologist degree online is an excellent way to develop expertise in Earth sciences. Additionally, environmental professionals often benefit from skills in spatial analysis, making a GIS degree a valuable complement to environmental studies, preparing students for diverse roles in mapping and data interpretation.

These related pathways not only enhance career prospects but also allow students to tailor their education to specific environmental fields, from policy and conservation to research and technology.

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