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Engineering & Technology

Top 100 Scientists

World Top 100 Scientists 2026

The Top 100 scientists are ranked based on total H-index scores at the global, regional, national, and institutional levels. Rankings cover 10 regions, 13 main fields, and 221 subfields. Subject-field rankings (world, region, country, and university levels) are currently in Beta and updated in near real-time.

Note: Researchers classified as “others” (1,123,399 profiles whose fields are undetermined or not yet edited) are excluded from subject and regional rankings. These rankings will dynamically evolve as the “others” profiles are reviewed and properly categorized.

Recognizing excellence across 10 regions, 13 fields, and 221 subfields — Explore the Top 100 today.

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Total 1 scientist
* Total H Index Rankings

Rankings

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771
World Rank
United States
286
Country Rank
Harvard University Logo
31
University
Ranking Based On Selection:
1
Daniel J Jacob
Harvard University Cambridge, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric Chemistr

H-Index Metrics

  • H-Index
    194
  • i10 Index
    575
  • Citation Counts
    115,114
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* Total H Index Rankings

Rankings

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1,614
World Rank
United States
681
Country Rank
University of California Berkeley Logo
21
University
Ranking Based On Selection:
2
Dennis Baldocchi
University of California Berkeley Berkeley, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
biosphere-atmosphere interactions | ecohydrology | micrometeorology | ecosystem ecolog

H-Index Metrics

  • H-Index
    158
  • i10 Index
    398
  • Citation Counts
    104,144
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* Total H Index Rankings

Rankings

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1,888
World Rank
United States
800
Country Rank
Harvard University Logo
82
University
Ranking Based On Selection:
3
Steven Wofsy
Harvard University Cambridge, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric chemistry | atmosphere-biosphere exchange | climate chang

H-Index Metrics

  • H-Index
    152
  • i10 Index
    449
  • Citation Counts
    92,127
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* Total H Index Rankings

Rankings

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2,361
World Rank
China
74
Country Rank
Sun Yat Sen University Logo
1
University
Ranking Based On Selection:
4
Qiang Zhang (张强)
Sun Yat Sen University Guangzhou, China
Engineering & Technology / Meteorology & Atmospheric Sciences
hydrometeorolog

H-Index Metrics

  • H-Index
    145
  • i10 Index
    1,425
  • Citation Counts
    111,505
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* Total H Index Rankings

Rankings

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2,546
World Rank
Italy
153
Country Rank
Abdus Salam International Centre for Theoretical Physics Logo
1
University
Ranking Based On Selection:
5
Filippo Giorgi
Abdus Salam International Centre for Theoretical Physics Trieste, Italy
Engineering & Technology / Meteorology & Atmospheric Sciences
climate | climate change | climate modeling | atmospheric sciences | aerosol

H-Index Metrics

  • H-Index
    142
  • i10 Index
    388
  • Citation Counts
    99,227
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* Total H Index Rankings

Rankings

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3,194
World Rank
United States
1,428
Country Rank
National Center for Atmospheric Research Logo
3
University
Ranking Based On Selection:
6
Jean-Francois Lamarque
National Center for Atmospheric Research Boulder, United States
Engineering & Technology / Meteorology & Atmospheric Sciences

H-Index Metrics

  • H-Index
    134
  • i10 Index
    362
  • Citation Counts
    109,292
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* Total H Index Rankings

Rankings

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3,338
World Rank
United States
1,491
Country Rank
University of Tennessee Space Institute Logo
1
University
Ranking Based On Selection:
7
Ying-Ling Ann Chen
University of Tennessee Space Institute Tennessee, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
optics | spectroscopy | visual scienc

H-Index Metrics

  • H-Index
    133
  • i10 Index
    1,304
  • Citation Counts
    84,759
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* Total H Index Rankings

Rankings

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3,499
World Rank
United States
1,563
Country Rank
University of Minnesota Twin Cities Logo
19
University
Ranking Based On Selection:
8
R Lawrence 'Larry' Edwards
University of Minnesota Twin Cities Minneapolis, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Paleoclimatology | Climate | Geochronology | Isotope Geochemistry | Chemical Oceanograph

H-Index Metrics

  • H-Index
    131
  • i10 Index
    535
  • Citation Counts
    113,163
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* Total H Index Rankings

Rankings

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3,537
World Rank
Brazil
33
Country Rank
Universidade de São Paulo USP Logo
6
University
Ranking Based On Selection:
9
Paulo Artaxo
Universidade de São Paulo USP São Paulo, Brazil
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric aerosols | Amazonia | global climate chang

H-Index Metrics

  • H-Index
    131
  • i10 Index
    479
  • Citation Counts
    76,299
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* Total H Index Rankings

Rankings

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3,836
World Rank
United States
1,730
Country Rank
Massachusetts Institute of Technology Logo
38
University
Ranking Based On Selection:
10
Kerry Emanuel
Massachusetts Institute of Technology Cambridge, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Tropical Meteorology | Hurricanes | Tropical Cyclones | Climat

H-Index Metrics

  • H-Index
    129
  • i10 Index
    335
  • Citation Counts
    80,667
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* Total H Index Rankings

Rankings

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4,093
World Rank
United States
1,858
Country Rank
University of California Berkeley Logo
49
University
Ranking Based On Selection:
11
Allen H Goldstein
University of California Berkeley Berkeley, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric Chemistry | Air Pollution | Biosphere Atmosphere Interactions | Volatile Organic Compound

H-Index Metrics

  • H-Index
    126
  • i10 Index
    407
  • Citation Counts
    63,829
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* Total H Index Rankings

Rankings

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4,500
World Rank
Netherlands
110
Country Rank
Utrecht University Logo
14
University
Ranking Based On Selection:
12
Michiel Van Den Broeke
Utrecht University Utrecht, Netherlands
Engineering & Technology / Meteorology & Atmospheric Sciences
Polar climate | ice sheet mass balance | Greenland | Antarctic

H-Index Metrics

  • H-Index
    123
  • i10 Index
    415
  • Citation Counts
    58,557
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* Total H Index Rankings

Rankings

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4,527
World Rank
United States
2,052
Country Rank
Clarkson University Logo
1
University
Ranking Based On Selection:
13
Philip Hopke
Clarkson University Potsdam, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric chemistry | aerosol scienc

H-Index Metrics

  • H-Index
    123
  • i10 Index
    823
  • Citation Counts
    71,440
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* Total H Index Rankings

Rankings

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4,670
World Rank
United Kingdom
389
Country Rank
University of Reading Logo
2
University
Ranking Based On Selection:
14
Sandy P Harrison
University of Reading Reading, United Kingdom
Engineering & Technology / Meteorology & Atmospheric Sciences
palaeoclimate | palaeoclimatology | land-atmosphere interactions | vegetation modellin

H-Index Metrics

  • H-Index
    122
  • i10 Index
    293
  • Citation Counts
    59,037
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* Total H Index Rankings

Rankings

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4,836
World Rank
United States
2,201
Country Rank
University of California Los Angeles Logo
48
University
Ranking Based On Selection:
15
Richard Thorne
University of California Los Angeles Los Angeles, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Space Physic

H-Index Metrics

  • H-Index
    121
  • i10 Index
    366
  • Citation Counts
    48,894
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* Total H Index Rankings

Rankings

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4,955
World Rank
Australia
176
Country Rank
Australian National University Logo
11
University
Ranking Based On Selection:
16
Martin Asplund
Australian National University Canberra, Australia
Engineering & Technology / Meteorology & Atmospheric Sciences
Astrophysics | stellar astrophysics | Galactic astronomy | extrasolar planets | early Univers

H-Index Metrics

  • H-Index
    120
  • i10 Index
    336
  • Citation Counts
    61,774
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* Total H Index Rankings

Rankings

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5,106
World Rank
United States
2,321
Country Rank
California Institute of Technology Caltech Logo
22
University
Ranking Based On Selection:
17
Paul Wennberg
California Institute of Technology Caltech Pasadena, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric science | physical chemistry | geochemistry | carbon cycl

H-Index Metrics

  • H-Index
    119
  • i10 Index
    354
  • Citation Counts
    49,441
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* Total H Index Rankings

Rankings

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5,353
World Rank
Canada
184
Country Rank
University of British Columbia Logo
21
University
Ranking Based On Selection:
18
Ta Black
University of British Columbia Vancouver, Canada
Engineering & Technology / Meteorology & Atmospheric Sciences
Biometeorology | Micrometeorology | Soil Physic

H-Index Metrics

  • H-Index
    118
  • i10 Index
    360
  • Citation Counts
    76,846
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* Total H Index Rankings

Rankings

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5,574
World Rank
Germany
261
Country Rank
Max Planck Institut für Biogeochemie Logo
3
University
Ranking Based On Selection:
19
Martin Heimann
Max Planck Institut für Biogeochemie Jena, Germany
Engineering & Technology / Meteorology & Atmospheric Sciences
Meteorology | Carbon Cycle | Oceanography | Atmospheric Transport | Biogeochemistr

H-Index Metrics

  • H-Index
    117
  • i10 Index
    281
  • Citation Counts
    71,242
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* Total H Index Rankings

Rankings

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6,128
World Rank
Austria
25
Country Rank
Universität Wien Logo
4
University
Ranking Based On Selection:
20
Andreas Stohl
Universität Wien Vienna, Austria
Engineering & Technology / Meteorology & Atmospheric Sciences
Meteorology | atmospheric sciences | geoscience

H-Index Metrics

  • H-Index
    114
  • i10 Index
    377
  • Citation Counts
    49,392
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* Total H Index Rankings

Rankings

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6,334
World Rank
United States
2,850
Country Rank
Carnegie Mellon University Logo
22
University
Ranking Based On Selection:
21
Hamish Gordon
Carnegie Mellon University Pittsburgh, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Atmospheric aerosols and cloud

H-Index Metrics

  • H-Index
    113
  • i10 Index
    230
  • Citation Counts
    43,170
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* Total H Index Rankings

Rankings

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6,423
World Rank
United States
2,902
Country Rank
University of Colorado Boulder Logo
24
University
Ranking Based On Selection:
22
JT Gosling
University of Colorado Boulder Boulder, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Space Plasma Physics | Solar-Terrestrial Physics | Solar Wind | Magnetic Reconnection | Collisionless Shock

H-Index Metrics

  • H-Index
    113
  • i10 Index
    415
  • Citation Counts
    46,045
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* Total H Index Rankings

Rankings

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6,486
World Rank
United States
2,926
Country Rank
National Center for Atmospheric Research Logo
4
University
Ranking Based On Selection:
23
Bette Otto-Bliesner
National Center for Atmospheric Research Boulder, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Paleoclimatology | Climate Modelin

H-Index Metrics

  • H-Index
    112
  • i10 Index
    265
  • Citation Counts
    47,873
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* Total H Index Rankings

Rankings

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6,580
World Rank
Germany
304
Country Rank
Universität Bremen Logo
1
University
Ranking Based On Selection:
24
John VP Burrows
Universität Bremen Bremen, Germany
Engineering & Technology / Meteorology & Atmospheric Sciences
atmospheric physics | atmospheric chemistry | climate change | kinetics | spectroscop

H-Index Metrics

  • H-Index
    112
  • i10 Index
    677
  • Citation Counts
    57,913
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* Total H Index Rankings

Rankings

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6,758
World Rank
United States
3,052
Country Rank
University of Colorado Boulder Logo
25
University
Ranking Based On Selection:
25
James Wc White
University of Colorado Boulder Boulder, United States
Engineering & Technology / Meteorology & Atmospheric Sciences
Climate | biogeochemical cycle

H-Index Metrics

  • H-Index
    111
  • i10 Index
    413
  • Citation Counts
    61,761
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