Citation Rankings
Highly Cited Researchers

Princeton University 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 :1
United States
Gillian Knapp
planet imaging
stellar astrophysics
interstellar medium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,532
31,412
0.243
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Jorge L Sarmiento
oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,774
24,255
0.343
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Michael Oppenheimer
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 :4
United States
Jeroen Tromp
Seismology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,555
11,455
0.448
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Blair Schoene
geoscience
geochemistry
geochronology
geology
tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,516
10,493
0.635
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Thomas Duffy
Geophysics
high-pressure research
materials science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,834
4,100
0.296
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Christopher Chyba
planetary science
origins of life
electrodynamics
nuclear nonproliferation and arms control
biological security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,808
2,566
0.237
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Lincoln S Hollister
metamorphic petrology
tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,701
1,856
0.173
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Adam C Maloof
geology
geophysics
geochemistry
earth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,502
4,827
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
John Andrew Higgins
geochemistry
carbon cycle
carbonate chemistry
stable isotopes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,544
4,519
0.691
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Frederik J Simons
Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,021
2,344
0.389
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Ian Bourg
Geochemistry
Environmental Chemistry
Clay Minerals
Mineral-Water Interfaces
Soft Earth Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,672
3,893
0.686
* Total Citation Counts Rankings
Ranking Based On Selection :13
United States
Xinning Zhang
Microbial Biogeochemistry
Environmental Microbiology
Geobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,384
1,820
0.538
* Total Citation Counts Rankings
Ranking Based On Selection :14
United States
Anne Sofie C Ahm
geochemistry
geology
diagenesis
paleoclimate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,178
1,141
0.969
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Behrooz Ferdowsi
earth surface processes
granular materials
geophysics
friction
fault mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
742
504
0.679
* Total Citation Counts Rankings
Ranking Based On Selection :16
United States
Nicolas Van Oostende
microbial oceanography
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
625
359
0.574
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
Linta Reji
Microbial ecology
Biogeochemistry
Geomicrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
226
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :18
United States
Julia Wilcots
sedimentology
carbonates
dolomite
Earth history
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
182
0.948
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Jennifer Willemsen
Environmental Chemistry
Geochemistry
Organic Contaminants
Clay Minerals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
142
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Noe-Heon Kim
Geochronology
Paleontology
Evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135
133
0.985
* Total Citation Counts Rankings
Ranking Based On Selection :21
United States
Emma Bertran
Biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
125
121
0.968
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Yajun Peng
Geophyiscs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118
53
0.449
* Total Citation Counts Rankings
Ranking Based On Selection :23
United States
Xiaohan Li
MD Simulation
Interface
Aerosol
Climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88
88
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :24
United States
Nirakar Sapkota
Space Science
Geophysics
Solar Physics
Space Weather
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
73
0.961
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Devan Nisson
geobiology
environmental microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71
71
1.000
* Total Citation Counts Rankings
Rankings
1,890
United States
858
15
Ranking Based On Selection: 1
Gillian Knapp
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129,532
31,412
0.243
planet imaging
stellar astrophysics
interstellar medium
* Total Citation Counts Rankings
Rankings
5,687
United States
2,699
38
Ranking Based On Selection: 2
Jorge L Sarmiento
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
70,774
24,255
0.343
* Total Citation Counts Rankings
Rankings
9,057
United States
4,324
64
Ranking Based On Selection: 3
Michael Oppenheimer
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
28,575
United States
13,024
138
Ranking Based On Selection: 4
Jeroen Tromp
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,555
11,455
0.448
* Total Citation Counts Rankings
Rankings
52,537
United States
22,670
216
Ranking Based On Selection: 5
Blair Schoene
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,516
10,493
0.635
geoscience
geochemistry
geochronology
geology
tectonics
* Total Citation Counts Rankings
Rankings
66,483
United States
27,937
241
Ranking Based On Selection: 6
Thomas Duffy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,834
4,100
0.296
Geophysics
high-pressure research
materials science
* Total Citation Counts Rankings
Rankings
90,037
United States
36,416
286
Ranking Based On Selection: 7
Christopher Chyba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,808
2,566
0.237
planetary science
origins of life
electrodynamics
nuclear nonproliferation and arms control
biological security
* Total Citation Counts Rankings
Rankings
91,100
United States
36,782
287
Ranking Based On Selection: 8
Lincoln S Hollister
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,701
1,856
0.173
* Total Citation Counts Rankings
Rankings
104,374
United States
41,413
305
Ranking Based On Selection: 9
Adam C Maloof
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,502
4,827
0.508
* Total Citation Counts Rankings
Rankings
156,897
United States
58,664
378
Ranking Based On Selection: 10
John Andrew Higgins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,544
4,519
0.691
geochemistry
carbon cycle
carbonate chemistry
stable isotopes
* Total Citation Counts Rankings
Rankings
170,761
United States
63,078
392
Ranking Based On Selection: 11
Frederik J Simons
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,021
2,344
0.389
* Total Citation Counts Rankings
Rankings
181,297
United States
66,315
407
Ranking Based On Selection: 12
Ian Bourg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,672
3,893
0.686
Geochemistry
Environmental Chemistry
Clay Minerals
Mineral-Water Interfaces
Soft Earth Geophysics
* Total Citation Counts Rankings
Rankings
291,822
United States
98,830
516
Ranking Based On Selection: 13
Xinning Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,384
1,820
0.538
Microbial Biogeochemistry
Environmental Microbiology
Geobiology
* Total Citation Counts Rankings
Rankings
619,501
United States
187,077
877
Ranking Based On Selection: 14
Anne Sofie C Ahm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,178
1,141
0.969
* Total Citation Counts Rankings
Rankings
784,456
United States
226,708
1,037
Ranking Based On Selection: 15
Behrooz Ferdowsi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
742
504
0.679
earth surface processes
granular materials
geophysics
friction
fault mechanics
* Total Citation Counts Rankings
Rankings
842,509
United States
239,436
1,073
Ranking Based On Selection: 16
Nicolas Van Oostende
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
625
359
0.574
* Total Citation Counts Rankings
Rankings
1,242,418
United States
303,736
1,274
Ranking Based On Selection: 17
Linta Reji
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
226
1.000
Microbial ecology
Biogeochemistry
Geomicrobiology
* Total Citation Counts Rankings
Rankings
1,312,031
United States
313,248
1,329
Ranking Based On Selection: 18
Julia Wilcots
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
192
182
0.948
sedimentology
carbonates
dolomite
Earth history
* Total Citation Counts Rankings
Rankings
1,440,570
United States
330,644
1,438
Ranking Based On Selection: 19
Jennifer Willemsen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
142
142
1.000
Environmental Chemistry
Geochemistry
Organic Contaminants
Clay Minerals
* Total Citation Counts Rankings
Rankings
1,462,265
United States
333,639
1,458
Ranking Based On Selection: 20
Noe-Heon Kim
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
135
133
0.985
* Total Citation Counts Rankings
Rankings
1,494,714
United States
338,068
1,483
Ranking Based On Selection: 21
Emma Bertran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
125
121
0.968
* Total Citation Counts Rankings
Rankings
1,520,415
United States
341,461
1,503
Ranking Based On Selection: 22
Yajun Peng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
118
53
0.449
* Total Citation Counts Rankings
Rankings
1,634,670
United States
356,944
1,617
Ranking Based On Selection: 23
Xiaohan Li
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
88
88
1.000
* Total Citation Counts Rankings
Rankings
1,690,165
United States
364,518
1,658
Ranking Based On Selection: 24
Nirakar Sapkota
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
76
73
0.961
Space Science
Geophysics
Solar Physics
Space Weather
* Total Citation Counts Rankings
Rankings
1,713,374
United States
367,634
1,673
Ranking Based On Selection: 25
Devan Nisson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
71
71
1.000