Citation Rankings
Highly Cited Researchers
Engineering & Technology / Earth Sciences Highly Cited Researchers 29.589 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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: 1
Environmental Geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178,311
147,029
0.825
* Total Citation Counts Rankings
Ranking Based On Selection: 2
planet imaging
stellar astrophysics
interstellar medium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
130,515
26,354
0.202
* Total Citation Counts Rankings
Ranking Based On Selection: 3
earth science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118,142
32,650
0.276
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117,721
78,279
0.665
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Climate
Climate Change
Paleoclimate
Polarimetry
Science Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,375
28,894
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Climate
Climate Change
Climate Extremes
Climate Impacts
Climate Prediction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101,854
35,878
0.352
* Total Citation Counts Rankings
Ranking Based On Selection: 7
geochemistry
petrology
isotopic geochemistry
mantle evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,460
33,378
0.336
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,174
47,909
0.520
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Biogeochemistry
Ecosystem Science
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,571
22,334
0.247
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Remote Sensing
Climate
Biogeosciences
Geosciences
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,908
36,347
0.404
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Earth and Environmental Sciences [Univ. of Adelaide]
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,878
45,100
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,684
49,502
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 13
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,718
26,858
0.310
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Observational Cosmology
Astronomical Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,515
16,678
0.195
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Geochemistry
Geology
Planetary Science
Mars
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,599
27,679
0.339
* Total Citation Counts Rankings
Ranking Based On Selection: 16
environmental microbiology
bioluminescence
geobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,150
19,774
0.244
* Total Citation Counts Rankings
Ranking Based On Selection: 17
ozone depletion
stratosphere
climate and climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,712
17,392
0.218
* Total Citation Counts Rankings
Ranking Based On Selection: 18
aerosols
air quality
geosciences
environmental geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,117
33,703
0.426
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Geology
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,850
21,671
0.275
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,850
21,228
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 21
evolution
genomics
population genetics
ancient DNA
environmental DNA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,115
37,238
0.483
* Total Citation Counts Rankings
Ranking Based On Selection: 22
carbon cycle
biogeochemistry
climate change
land use change
sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,698
29,949
0.406
* Total Citation Counts Rankings
Ranking Based On Selection: 23
oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,637
21,342
0.298
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Geochemistry
Geology
Early Earth
SIMS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,143
18,584
0.261
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,470
17,813
0.253
* Total Citation Counts Rankings
Rankings
1,051
14
1
Ranking Based On Selection: 1
Min Liu
East China Normal University
Shanghai, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
178,311
147,029
0.825
* Total Citation Counts Rankings
Rankings
1,925
872
16
Ranking Based On Selection: 2
Gillian Knapp
Princeton University
Princeton, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
130,515
26,354
0.202
planet imaging
stellar astrophysics
interstellar medium
* Total Citation Counts Rankings
Rankings
2,320
1,086
1
Ranking Based On Selection: 3
Steven Running
University of Montana, Missoula
St. Louis,, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118,142
32,650
0.276
* Total Citation Counts Rankings
Rankings
2,330
1,093
28
Ranking Based On Selection: 4
Fabrice Matichard
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
117,721
78,279
0.665
* Total Citation Counts Rankings
Rankings
2,877
1,365
26
Ranking Based On Selection: 5
James E Hansen
Columbia University New York
New York, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,375
28,894
0.272
Climate
Climate Change
Paleoclimate
Polarimetry
Science Policy
* Total Citation Counts Rankings
Rankings
3,111
119
20
Ranking Based On Selection: 6
Neville Nicholls
Monash University
Clayton, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
101,854
35,878
0.352
Climate
Climate Change
Climate Extremes
Climate Impacts
Climate Prediction
* Total Citation Counts Rankings
Rankings
3,264
129
2
Ranking Based On Selection: 7
William L Griffin
Macquarie University
Sydney, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99,460
33,378
0.336
geochemistry
petrology
isotopic geochemistry
mantle evolution
* Total Citation Counts Rankings
Rankings
3,760
128
1
Ranking Based On Selection: 8
Markus Reichstein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92,174
47,909
0.520
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
* Total Citation Counts Rankings
Rankings
3,886
1,841
1
Ranking Based On Selection: 9
William H Schlesinger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,571
22,334
0.247
Biogeochemistry
Ecosystem Science
Ecology
* Total Citation Counts Rankings
Rankings
3,943
1,874
9
Ranking Based On Selection: 10
Ranga Myneni
Boston University
Boston, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,908
36,347
0.404
Remote Sensing
Climate
Biogeosciences
Geosciences
Ecology
* Total Citation Counts Rankings
Rankings
4,013
85
1
Ranking Based On Selection: 11
M Santosh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,878
45,100
0.507
Earth and Environmental Sciences [Univ. of Adelaide]
* Total Citation Counts Rankings
Rankings
4,109
142
2
Ranking Based On Selection: 12
Frank Oliver Glöckner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
87,684
49,502
0.565
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
* Total Citation Counts Rankings
Rankings
4,166
336
15
Ranking Based On Selection: 13
Jonathan Richard Lloyd
University of Manchester
Manchester, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,718
26,858
0.310
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
* Total Citation Counts Rankings
Rankings
4,271
2,026
32
Ranking Based On Selection: 14
Michele Limon
University of Pennsylvania
Philadelphia, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,515
16,678
0.195
Observational Cosmology
Astronomical Instrumentation
* Total Citation Counts Rankings
Rankings
4,637
2,204
4
Ranking Based On Selection: 15
Scott M Mclennan
Stony Brook University
Stony Brook, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,599
27,679
0.339
Geochemistry
Geology
Planetary Science
Mars
* Total Citation Counts Rankings
Rankings
4,685
2,223
19
Ranking Based On Selection: 16
Kenneth H Nealson
University of Southern California
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,150
19,774
0.244
environmental microbiology
bioluminescence
geobiology
* Total Citation Counts Rankings
Rankings
4,836
2,295
64
Ranking Based On Selection: 17
Susan Solomon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,712
17,392
0.218
ozone depletion
stratosphere
climate and climate change
* Total Citation Counts Rankings
Rankings
4,909
99
1
Ranking Based On Selection: 18
Xavier Querol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,117
33,703
0.426
aerosols
air quality
geosciences
environmental geochemistry
* Total Citation Counts Rankings
Rankings
4,940
409
8
Ranking Based On Selection: 19
Julian A. Pearce
Cardiff University
Cardiff, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,850
21,671
0.275
* Total Citation Counts Rankings
Rankings
5,049
418
1
Ranking Based On Selection: 20
Steve Mcgrath
Rothamsted Research
Harpenden, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,850
21,228
0.273
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
* Total Citation Counts Rankings
Rankings
5,121
27
13
Ranking Based On Selection: 21
Eske Willerslev
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,115
37,238
0.483
evolution
genomics
population genetics
ancient DNA
environmental DNA
* Total Citation Counts Rankings
Rankings
5,504
2,611
20
Ranking Based On Selection: 22
James Randerson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,698
29,949
0.406
carbon cycle
biogeochemistry
climate change
land use change
sustainability
* Total Citation Counts Rankings
Rankings
5,768
2,725
39
Ranking Based On Selection: 23
Jorge L Sarmiento
Princeton University
Princeton, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,637
21,342
0.298
* Total Citation Counts Rankings
Rankings
5,840
2,762
58
Ranking Based On Selection: 24
T Mark Harrison
University of California Los Angeles
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71,143
18,584
0.261
Geochemistry
Geology
Early Earth
SIMS
* Total Citation Counts Rankings
Rankings
5,929
161
1
Ranking Based On Selection: 25
Paul Tapponnier
China Earthquake Administration
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,470
17,813
0.253