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
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,785
51,755
0.576
* Total Citation Counts Rankings
Ranking Based On Selection :2
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,937
33,854
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :3
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,619
53,974
0.630
* Total Citation Counts Rankings
Ranking Based On Selection :4
aerosols
air quality
geosciences
environmental geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,837
37,869
0.487
* Total Citation Counts Rankings
Ranking Based On Selection :5
Geology
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,744
25,350
0.326
* Total Citation Counts Rankings
Ranking Based On Selection :6
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,031
24,428
0.317
* Total Citation Counts Rankings
Ranking Based On Selection :7
evolution
genomics
population genetics
ancient DNA
environmental DNA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,693
42,797
0.565
* Total Citation Counts Rankings
Ranking Based On Selection :8
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 :9
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 :10
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 :11
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 :12
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 :13
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 :14
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 :15
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 :16
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 :17
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
Ranking Based On Selection :18
biological oceanography
marine biogeochemistry
Earth System science
numerical ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,074
13,377
0.273
* Total Citation Counts Rankings
Ranking Based On Selection :19
Geoquímica ambiental
Contaminación atmosférica
Aerosoles atmosféricos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,379
20,745
0.438
* Total Citation Counts Rankings
Ranking Based On Selection :20
Jeoloji
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,471
13,573
0.298
* Total Citation Counts Rankings
Ranking Based On Selection :21
petroleum seismology
earthquake seismology
geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,152
23,585
0.534
* Total Citation Counts Rankings
Ranking Based On Selection :22
geography
geomorphology
soil erosion
soil carbon
biogeochemical cycles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,726
15,789
0.361
* Total Citation Counts Rankings
Ranking Based On Selection :23
Earth System Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,354
17,965
0.414
* Total Citation Counts Rankings
Ranking Based On Selection :24
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,054
12,120
0.295
* Total Citation Counts Rankings
Ranking Based On Selection :25
geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,911
13,698
0.335
Markus Reichstein
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,785
51,755
0.576
Earth System science
biogeochemical cycles
extreme events
eco-hydrology
machine learning
Jonathan Richard Lloyd
University of Manchester
Manchester, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,937
33,854
0.394
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
Frank Oliver Glöckner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
85,619
53,974
0.630
Earth System Data Science
Data Management
Biodiversity
Ecosystems Biology
Xavier Querol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,837
37,869
0.487
aerosols
air quality
geosciences
environmental geochemistry
Julian A. Pearce
Cardiff University
Cardiff, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,744
25,350
0.326
Steve Mcgrath
Rothamsted Research
Harpenden, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
77,031
24,428
0.317
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
Eske Willerslev
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,693
42,797
0.565
evolution
genomics
population genetics
ancient DNA
environmental DNA
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
Stephen Sparks
University of Bristol
Bristol, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,171
17,576
0.283
CJ Hawkesworth
University of Bristol
Bristol, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,104
17,447
0.290
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
Paul D Ryan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,415
27,797
0.468
Geology
Tectonics
Statistics
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
Susan Trumbore
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,953
21,049
0.390
Carbon cycle and biogeochemistry
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
Øyvind Hammer
University of Oslo
Oslo, Norway
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,727
26,220
0.507
Albrecht W. Hofmann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,394
14,473
0.282
Geochemistry
Petrology
Earth's mantle
Louis Legendre
Sorbonne Université
Paris, France
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,074
13,377
0.273
biological oceanography
marine biogeochemistry
Earth System science
numerical ecology
Andres Alastuey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,379
20,745
0.438
Geoquímica ambiental
Contaminación atmosférica
Aerosoles atmosféricos
Ali Mehmet Celal Şengör
İstanbul Technical University
İstanbul, Türkiye
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,471
13,573
0.298
Robert James Brown
University of Stavanger
Stavanger, Norway
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,152
23,585
0.534
petroleum seismology
earthquake seismology
geophysics
Gerard Govers
Catholic University of Leuven
Leuven, Belgium
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,726
15,789
0.361
geography
geomorphology
soil erosion
soil carbon
biogeochemical cycles
Wolfgang Lucht
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,354
17,965
0.414
Francis Albarede
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,054
12,120
0.295
Marjorie Wilson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,911
13,698
0.335