Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationEngineering & Technology / Earth Sciences Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :26
atmospheric chemistry
emissions
satellite remote sensing
air quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,575
50,502
0.747
* Total Citation Counts Rankings
Ranking Based On Selection :27
Petrology
Geochemistry
Tectonics
Geodynamics
Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,328
25,567
0.380
* Total Citation Counts Rankings
Ranking Based On Selection :28
dendroclimatology
paleoclimatology
climatic change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,062
23,539
0.356
* Total Citation Counts Rankings
Ranking Based On Selection :29
land surface processes
climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,386
15,142
0.232
* Total Citation Counts Rankings
Ranking Based On Selection :30
oxygen
evolution
oceanography
geobiology
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,113
23,632
0.374
* Total Citation Counts Rankings
Ranking Based On Selection :31
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,527
57,871
0.926
* Total Citation Counts Rankings
Ranking Based On Selection :32
Lithospheric Geochemistry
Cenozoic evolution of Tibetan Plateaau and adjacent region through magmatic study
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,357
28,380
0.455
* Total Citation Counts Rankings
Ranking Based On Selection :33
geology
volcanology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,171
17,576
0.283
* Total Citation Counts Rankings
Ranking Based On Selection :34
seismology
marine geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,634
38,701
0.628
* Total Citation Counts Rankings
Ranking Based On Selection :35
Geology
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,104
17,447
0.290
* Total Citation Counts Rankings
Ranking Based On Selection :36
Biogeochemistry
Organic Geochemistry
Oceanography
Stable Isotopes
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,511
23,783
0.400
* Total Citation Counts Rankings
Ranking Based On Selection :37
Geology
Tectonics
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,415
27,797
0.468
* Total Citation Counts Rankings
Ranking Based On Selection :38
Observational cosmology
galaxy formation and evolution
clusters of galaxies
astronomical instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,793
19,225
0.333
* Total Citation Counts Rankings
Ranking Based On Selection :39
organic geochemistry
environmental chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,285
13,454
0.235
* Total Citation Counts Rankings
Ranking Based On Selection :40
Geodynamics
Complexity
Fractals
Natural Hazards
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,478
10,749
0.194
* Total Citation Counts Rankings
Ranking Based On Selection :41
geochemistry
aquatic environment
maar-lakes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,823
24,939
0.455
* Total Citation Counts Rankings
Ranking Based On Selection :42
Carbon cycle and biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,953
21,049
0.390
* Total Citation Counts Rankings
Ranking Based On Selection :43
Crustal evolution
geochronology
Precambrian tectonics
palaeomagnetism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,648
18,803
0.350
* Total Citation Counts Rankings
Ranking Based On Selection :44
Climate Change - Physcial Science
Impacts and Risks
Public Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,280
31,779
0.596
* Total Citation Counts Rankings
Ranking Based On Selection :45
remote sensing
land cover and land use change
carbon
Landsat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,925
24,172
0.457
* Total Citation Counts Rankings
Ranking Based On Selection :46
sequence stratigraphy
geology
exploration seismology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,590
8,212
0.156
* Total Citation Counts Rankings
Ranking Based On Selection :47
Geophysics
Earthquakes
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,530
19,510
0.371
* Total Citation Counts Rankings
Ranking Based On Selection :48
geology
materials science
nuclear materials
environmental
nuclear waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,058
16,930
0.325
* Total Citation Counts Rankings
Ranking Based On Selection :49
Geology
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,727
26,220
0.507
* Total Citation Counts Rankings
Ranking Based On Selection :50
Geochemistry
Petrology
Earth's mantle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,394
14,473
0.282
* Total Citation Counts Rankings
Rankings
6,165
167
12
Ranking Based On Selection: 26
Qiang Zhang
Tsinghua University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,575
50,502
0.747
atmospheric chemistry
emissions
satellite remote sensing
air quality
* Total Citation Counts Rankings
Rankings
6,203
243
7
Ranking Based On Selection: 27
Suzanne Yvette O Reilly
Macquarie University
Sydney, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,328
25,567
0.380
Petrology
Geochemistry
Tectonics
Geodynamics
Geophysics
* Total Citation Counts Rankings
Rankings
6,384
3,020
62
Ranking Based On Selection: 28
Edward Cook
Columbia University New York
New York City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66,062
23,539
0.356
dendroclimatology
paleoclimatology
climatic change
* Total Citation Counts Rankings
Rankings
6,483
3,062
26
Ranking Based On Selection: 29
Robert Dickinson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,386
15,142
0.232
land surface processes
climate
* Total Citation Counts Rankings
Rankings
6,876
44
3
Ranking Based On Selection: 30
Donald E Canfield
University of Southern Denmark
Tianjin, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,113
23,632
0.374
oxygen
evolution
oceanography
geobiology
biogeochemistry
* Total Citation Counts Rankings
Rankings
6,989
77
2
Ranking Based On Selection: 31
Pallab Maulik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,527
57,871
0.926
* Total Citation Counts Rankings
Rankings
7,022
193
1
Ranking Based On Selection: 32
Zhidan Zhao / 赵志丹
China University of Geosciences, Beijing
Beijing, Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,357
28,380
0.455
Lithospheric Geochemistry
Cenozoic evolution of Tibetan Plateaau and adjacent region through magmatic study
* Total Citation Counts Rankings
Rankings
7,065
609
16
Ranking Based On Selection: 33
Stephen Sparks
University of Bristol
Bristol, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,171
17,576
0.283
* Total Citation Counts Rankings
Rankings
7,163
3,401
4
Ranking Based On Selection: 34
Yang Shen
University of Rhode Island
Kingston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,634
38,701
0.628
seismology
marine geophysics
* Total Citation Counts Rankings
Rankings
7,433
644
18
Ranking Based On Selection: 35
CJ Hawkesworth
University of Bristol
Bristol, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,104
17,447
0.290
* Total Citation Counts Rankings
Rankings
7,562
171
19
Ranking Based On Selection: 36
Jack J Middelburg
Utrecht University
Utrecht, Netherlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,511
23,783
0.400
Biogeochemistry
Organic Geochemistry
Oceanography
Stable Isotopes
Geochemistry
* Total Citation Counts Rankings
Rankings
7,577
19
1
Ranking Based On Selection: 37
Paul D Ryan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,415
27,797
0.468
Geology
Tectonics
Statistics
* Total Citation Counts Rankings
Rankings
7,907
309
26
Ranking Based On Selection: 38
Matthew Colless
Australian National University
Canberra, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,793
19,225
0.333
Observational cosmology
galaxy formation and evolution
clusters of galaxies
astronomical instrumentation
* Total Citation Counts Rankings
Rankings
8,024
3,827
5
Ranking Based On Selection: 39
Bernd RT Simoneit
Oregon State University
Corvallis, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,285
13,454
0.235
organic geochemistry
environmental chemistry
* Total Citation Counts Rankings
Rankings
8,482
4,040
25
Ranking Based On Selection: 40
Donald L Turcotte
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,478
10,749
0.194
Geodynamics
Complexity
Fractals
Natural Hazards
* Total Citation Counts Rankings
Rankings
8,647
152
11
Ranking Based On Selection: 41
Michel Meybeck
Sorbonne Université
Paris, France
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,823
24,939
0.455
geochemistry
aquatic environment
maar-lakes
* Total Citation Counts Rankings
Rankings
8,876
355
4
Ranking Based On Selection: 42
Susan Trumbore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,953
21,049
0.390
Carbon cycle and biogeochemistry
* Total Citation Counts Rankings
Rankings
8,956
359
4
Ranking Based On Selection: 43
Alfred Kröner
Helmholtz Institut Mainz
Mainz, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,648
18,803
0.350
Crustal evolution
geochronology
Precambrian tectonics
palaeomagnetism
* Total Citation Counts Rankings
Rankings
9,057
4,324
64
Ranking Based On Selection: 44
Michael Oppenheimer
Princeton University
Princeton, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,280
31,779
0.596
Climate Change - Physcial Science
Impacts and Risks
Public Policy
* Total Citation Counts Rankings
Rankings
9,142
4,363
26
Ranking Based On Selection: 45
Curtis Woodcock
Boston University
Boston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,925
24,172
0.457
remote sensing
land cover and land use change
carbon
Landsat
* Total Citation Counts Rankings
Rankings
9,224
4,402
20
Ranking Based On Selection: 46
Peter Vail
Rice University
Houston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,590
8,212
0.156
sequence stratigraphy
geology
exploration seismology
* Total Citation Counts Rankings
Rankings
9,244
4,412
207
Ranking Based On Selection: 47
Mark Zoback
Stanford University
Stanford, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,530
19,510
0.371
Geophysics
Earthquakes
Energy
* Total Citation Counts Rankings
Rankings
9,383
4,479
210
Ranking Based On Selection: 48
Rodney C Ewing
Stanford University
Stanford, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,058
16,930
0.325
geology
materials science
nuclear materials
environmental
nuclear waste
* Total Citation Counts Rankings
Rankings
9,475
36
13
Ranking Based On Selection: 49
Øyvind Hammer
University of Oslo
Oslo, Norway
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,727
26,220
0.507
* Total Citation Counts Rankings
Rankings
9,565
383
5
Ranking Based On Selection: 50
Albrecht W. Hofmann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,394
14,473
0.282
Geochemistry
Petrology
Earth's mantle