Citation Rankings
Highly Cited Researchers
World Highly Cited Researchers CitationEngineering & Technology / Earth Sciences Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
167,380
143,196
0.856
* 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
128,004
30,047
0.235
* Total Citation Counts Rankings
Ranking Based On Selection :3
earth science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,949
36,238
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,043
82,385
0.749
* 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
103,243
31,577
0.306
* 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
98,139
39,028
0.398
* 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
96,575
37,098
0.384
* Total Citation Counts Rankings
Ranking Based On Selection :8
Biogeochemistry
Ecosystem Science
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,177
24,532
0.278
* Total Citation Counts Rankings
Ranking Based On Selection :9
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,884
48,903
0.563
* 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
86,590
38,979
0.450
* Total Citation Counts Rankings
Ranking Based On Selection :11
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,679
32,780
0.387
* Total Citation Counts Rankings
Ranking Based On Selection :12
Earth and Environmental Sciences [Univ. of Adelaide]
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,288
47,572
0.564
* Total Citation Counts Rankings
Ranking Based On Selection :13
Observational Cosmology
Astronomical Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,758
18,140
0.217
* Total Citation Counts Rankings
Ranking Based On Selection :14
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,228
51,672
0.621
* Total Citation Counts Rankings
Ranking Based On Selection :15
environmental microbiology
bioluminescence
geobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,344
22,358
0.282
* Total Citation Counts Rankings
Ranking Based On Selection :16
Geochemistry
Geology
Planetary Science
Mars
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,861
29,995
0.380
* Total Citation Counts Rankings
Ranking Based On Selection :17
Geology
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,659
24,464
0.319
* 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
76,143
36,280
0.476
* Total Citation Counts Rankings
Ranking Based On Selection :19
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,063
23,549
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :20
ozone depletion
stratosphere
climate and climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,834
18,879
0.256
* 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
73,777
41,027
0.556
* 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
70,742
31,536
0.446
* Total Citation Counts Rankings
Ranking Based On Selection :23
oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,536
23,124
0.333
* Total Citation Counts Rankings
Ranking Based On Selection :24
Geochemistry
Geology
Early Earth
SIMS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,202
20,406
0.295
* Total Citation Counts Rankings
Ranking Based On Selection :25
Tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,643
19,253
0.280
* Total Citation Counts Rankings
Rankings
1,099
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
167,380
143,196
0.856
* Total Citation Counts Rankings
Rankings
1,852
846
15
Ranking Based On Selection: 2
Gillian Knapp
Princeton University
Princeton, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
128,004
30,047
0.235
planet imaging
stellar astrophysics
interstellar medium
* Total Citation Counts Rankings
Rankings
2,260
1,068
1
Ranking Based On Selection: 3
Steven Running
University of Montana, Missoula
Missoula, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
114,949
36,238
0.315
* Total Citation Counts Rankings
Rankings
2,453
1,174
28
Ranking Based On Selection: 4
Fabrice Matichard
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,043
82,385
0.749
* Total Citation Counts Rankings
Rankings
2,797
1,340
24
Ranking Based On Selection: 5
James E Hansen
Columbia University New York
New York City, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103,243
31,577
0.306
Climate
Climate Change
Paleoclimate
Polarimetry
Science Policy
* Total Citation Counts Rankings
Rankings
3,087
111
17
Ranking Based On Selection: 6
Neville Nicholls
Monash University
Clayton, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,139
39,028
0.398
Climate
Climate Change
Climate Extremes
Climate Impacts
Climate Prediction
* Total Citation Counts Rankings
Rankings
3,188
121
2
Ranking Based On Selection: 7
William L Griffin
Macquarie University
Sydney, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,575
37,098
0.384
geochemistry
petrology
isotopic geochemistry
mantle evolution
* Total Citation Counts Rankings
Rankings
3,786
1,818
1
Ranking Based On Selection: 8
William H Schlesinger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88,177
24,532
0.278
Biogeochemistry
Ecosystem Science
Ecology
* Total Citation Counts Rankings
Rankings
3,871
132
1
Ranking Based On Selection: 9
Markus Reichstein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
86,884
48,903
0.563
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
* Total Citation Counts Rankings
Rankings
3,906
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
86,590
38,979
0.450
Remote Sensing
Climate
Biogeosciences
Geosciences
Ecology
* Total Citation Counts Rankings
Rankings
4,070
332
15
Ranking Based On Selection: 11
Jonathan Richard Lloyd
University of Manchester
Manchester, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,679
32,780
0.387
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
* Total Citation Counts Rankings
Rankings
4,096
86
1
Ranking Based On Selection: 12
M Santosh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,288
47,572
0.564
Earth and Environmental Sciences [Univ. of Adelaide]
* Total Citation Counts Rankings
Rankings
4,134
1,972
28
Ranking Based On Selection: 13
Michele Limon
University of Pennsylvania
Philadelphia, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,758
18,140
0.217
Observational Cosmology
Astronomical Instrumentation
* Total Citation Counts Rankings
Rankings
4,165
145
2
Ranking Based On Selection: 14
Frank Oliver Glöckner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
83,228
51,672
0.621
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
* Total Citation Counts Rankings
Rankings
4,524
2,170
18
Ranking Based On Selection: 15
Kenneth H Nealson
University of Southern California
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79,344
22,358
0.282
environmental microbiology
bioluminescence
geobiology
* Total Citation Counts Rankings
Rankings
4,583
2,200
5
Ranking Based On Selection: 16
Scott M Mclennan
Stony Brook University
Stony Brook, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,861
29,995
0.380
Geochemistry
Geology
Planetary Science
Mars
* Total Citation Counts Rankings
Rankings
4,831
399
8
Ranking Based On Selection: 17
Julian A. Pearce
Cardiff University
Cardiff, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,659
24,464
0.319
* Total Citation Counts Rankings
Rankings
4,889
98
1
Ranking Based On Selection: 18
Xavier Querol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,143
36,280
0.476
aerosols
air quality
geosciences
environmental geochemistry
* Total Citation Counts Rankings
Rankings
4,905
407
1
Ranking Based On Selection: 19
Steve Mcgrath
Rothamsted Research
Harpenden, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76,063
23,549
0.310
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
* Total Citation Counts Rankings
Rankings
5,160
2,468
74
Ranking Based On Selection: 20
Susan Solomon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,834
18,879
0.256
ozone depletion
stratosphere
climate and climate change
* Total Citation Counts Rankings
Rankings
5,167
26
12
Ranking Based On Selection: 21
Eske Willerslev
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,777
41,027
0.556
evolution
genomics
population genetics
ancient DNA
environmental DNA
* Total Citation Counts Rankings
Rankings
5,517
2,627
20
Ranking Based On Selection: 22
James Randerson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,742
31,536
0.446
carbon cycle
biogeochemistry
climate change
land use change
sustainability
* Total Citation Counts Rankings
Rankings
5,669
2,701
39
Ranking Based On Selection: 23
Jorge L Sarmiento
Princeton University
Princeton, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69,536
23,124
0.333
* Total Citation Counts Rankings
Rankings
5,704
2,719
57
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
69,202
20,406
0.295
Geochemistry
Geology
Early Earth
SIMS
* Total Citation Counts Rankings
Rankings
5,775
147
1
Ranking Based On Selection: 25
Paul Tapponnier
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,643
19,253
0.280