Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
9,283
Country Rank
4,455
Institution Rank : 212
![](https://cdn.adscientificindex.com/logos/8488.png)
![United States](/flags/us.png)
![Rodney C Ewing](https://cdn.adscientificindex.com/pictures/fd/1649792.jpg)
geology
materials science
nuclear materials
environmental
nuclear waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,342
16,318
0.318
* Total Citation Counts Rankings
World Rank
24,313
Country Rank
11,230
Institution Rank : 52
![](https://cdn.adscientificindex.com/logos/10899.png)
![United States](/flags/us.png)
![Thorne Lay](https://cdn.adscientificindex.com/pictures/ab/1848299.jpg)
Seismology
Earthquake Studies
Earth Structure Studies
Elastic Wave Propagation
Nuclear Explosion Monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,928
8,018
0.287
* Total Citation Counts Rankings
World Rank
37,679
Country Rank
16,870
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/15844.png)
![United States](/flags/us.png)
![John R Bargar](https://cdn.adscientificindex.com/pictures/52/1650237.jpg)
Biogeochemistry Water-rock interactions Nuclear Forensics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,661
9,049
0.438
* Total Citation Counts Rankings
World Rank
37,696
Country Rank
16,880
Institution Rank : 164
![](https://cdn.adscientificindex.com/logos/11862.jpg)
![United States](/flags/us.png)
![Katharina Lodders](https://cdn.adscientificindex.com/pictures/5c/1331201.jpg)
astronomy and astrophysics
nuclear chemistry
cosmochemistry
meteoritics
planetary sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,654
7,045
0.341
* Total Citation Counts Rankings
World Rank
73,830
Country Rank
30,683
Institution Rank : 178
![](https://cdn.adscientificindex.com/logos/16478.png)
![United States](/flags/us.png)
![Jens Birkholzer](https://cdn.adscientificindex.com/pictures/31/4443496.jpg)
Hydrogeology
Geomechanics
Geologic carbon sequestration
Geologic nuclear waste disposal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,471
5,262
0.422
* Total Citation Counts Rankings
World Rank
84,788
Country Rank
3,862
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/26654.png)
![Australia](/flags/au.png)
![David Fink](/user/assets/images/profile/no-profile-photo.png)
earth sciences
cosmogenic isotopes
Accelerator Mass spectrometry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,122
3,775
0.339
* Total Citation Counts Rankings
World Rank
88,957
Country Rank
36,116
Institution Rank : 284
![](https://cdn.adscientificindex.com/logos/7038.jpg)
![United States](/flags/us.png)
![Christopher Chyba](https://cdn.adscientificindex.com/pictures/cc/1463976.jpg)
planetary science
origins of life
electrodynamics
nuclear nonproliferation and arms control
biological security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,684
2,456
0.230
* Total Citation Counts Rankings
World Rank
92,219
Country Rank
37,254
Institution Rank : 18
![](https://cdn.adscientificindex.com/logos/11187.jpg)
![United States](/flags/us.png)
![Nelson Eby](https://cdn.adscientificindex.com/pictures/5f/1291414.jpg)
Geochemistry
forensics
nuclear methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,364
3,650
0.352
* Total Citation Counts Rankings
World Rank
96,149
Country Rank
38,630
Institution Rank : 125
![](https://cdn.adscientificindex.com/logos/11254.jpg)
![United States](/flags/us.png)
![Antonio Simonetti](/user/assets/images/profile/no-profile-photo.png)
isotope geochemistry
geochronology
nuclear forensics
carbonatites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,998
4,003
0.400
* Total Citation Counts Rankings
World Rank
103,561
Country Rank
41,233
Institution Rank : 132
![](https://cdn.adscientificindex.com/logos/15783.jpg)
![United States](/flags/us.png)
![Terry C Wallace, Jr](https://cdn.adscientificindex.com/pictures/d5/4383304.jpg)
seismology
mineralogy
nuclear explosions
minerals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,360
1,638
0.175
* Total Citation Counts Rankings
World Rank
114,007
Country Rank
2,738
Institution Rank : 62
![](https://cdn.adscientificindex.com/logos/14636.jpg)
![Spain](/flags/es.png)
![J. Jaime Gómez-Hernández](https://cdn.adscientificindex.com/pictures/7b/4340385.jpg)
Geostatistics
Hydrogeology
Inverse modeling
Stochastic Groundwater Modeling
Nuclear Waste Disposal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,604
2,427
0.282
* Total Citation Counts Rankings
World Rank
114,857
Country Rank
4,817
Institution Rank : 36
![](https://cdn.adscientificindex.com/logos/4593.jpg)
![China](/flags/cn.png)
![Zhenxue Dai](https://cdn.adscientificindex.com/pictures/52/676549.jpg)
Geochemical modeling
upscaling
carbon storage
reservoir characterization
nuclear waste disposal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,548
5,964
0.698
* Total Citation Counts Rankings
World Rank
132,722
Country Rank
786
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/15668.png)
![Austria](/flags/at.png)
![Matt Kilburn](/user/assets/images/profile/no-profile-photo.png)
Nuclear safeguards
Secondary Ion Mass Spectrometry
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,504
3,796
0.506
* Total Citation Counts Rankings
World Rank
136,016
Country Rank
52,139
Institution Rank : 729
![](https://cdn.adscientificindex.com/logos/11280.jpg)
![United States](/flags/us.png)
![Reto Gieré](https://cdn.adscientificindex.com/pictures/a3/1502380.jpg)
mineralogy
petrology
geology
particulate matter
nuclear waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,331
3,258
0.444
* Total Citation Counts Rankings
World Rank
136,510
Country Rank
52,297
Institution Rank : 731
![](https://cdn.adscientificindex.com/logos/11280.jpg)
![United States](/flags/us.png)
![Reto Gieré](https://cdn.adscientificindex.com/pictures/95/1450706.jpg)
mineralogy and petrology
geology
particulate matter
nuclear waste
environmental geochemistry and health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,307
3,238
0.443
* Total Citation Counts Rankings
World Rank
154,654
Country Rank
12,204
Institution Rank : 578
![](https://cdn.adscientificindex.com/logos/10902.jpg)
![United Kingdom](/flags/gb.png)
![Ian Farnan](/user/assets/images/profile/no-profile-photo.png)
nuclear materials
silicates
glasses
uranium dioxide
minerals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,490
1,809
0.279
* Total Citation Counts Rankings
World Rank
169,233
Country Rank
62,744
Institution Rank : 132
![](https://cdn.adscientificindex.com/logos/15782.png)
![United States](/flags/us.png)
![William R Walter](https://cdn.adscientificindex.com/pictures/0b/4384506.jpg)
Geophysics
Seismology
Nuclear Explosion Monitoring
Earthquakes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,939
1,778
0.299
* Total Citation Counts Rankings
World Rank
188,287
Country Rank
8,239
Institution Rank : 470
![](https://cdn.adscientificindex.com/logos/24449.png)
![Italy](/flags/it.png)
![Fabio Mantovani](https://cdn.adscientificindex.com/pictures/5e/4697025.jpg)
Nuclear and subnuclear geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,326
3,420
0.642
* Total Citation Counts Rankings
World Rank
210,380
Country Rank
15,995
Institution Rank : 633
![](https://cdn.adscientificindex.com/logos/11168.jpg)
![United Kingdom](/flags/gb.png)
![Katherine Morris](https://cdn.adscientificindex.com/pictures/17/1056301.jpg)
Environmental Radioactivity
Mineralogy
Nuclear Environmental
Williamson Research Centre
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,750
2,665
0.561
* Total Citation Counts Rankings
World Rank
213,799
Country Rank
8,689
Institution Rank : 168
![](https://cdn.adscientificindex.com/logos/7286.png)
![Germany](/flags/de.png)
![Florian Amann](https://cdn.adscientificindex.com/pictures/18/1763071.jpg)
Geomechanics
rock mechanics
rock slope instablities
clay shales
nuclear waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,671
3,471
0.743
* Total Citation Counts Rankings
World Rank
232,909
Country Rank
10,351
Institution Rank : 61
![](https://cdn.adscientificindex.com/logos/27052.png)
![Italy](/flags/it.png)
![Daniele Carbone](/user/assets/images/profile/no-profile-photo.png)
nuclear physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,259
2,801
0.658
* Total Citation Counts Rankings
World Rank
247,795
Country Rank
5,835
Institution Rank : 1,498
![](https://cdn.adscientificindex.com/logos/9794.jpg)
![Brazil](/flags/br.png)
![Leila Soares Marques](https://cdn.adscientificindex.com/pictures/59/833393.jpg)
Geofísica Nuclear
Litogeoquímica
Geologia Isotópica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,985
1,255
0.315
* Total Citation Counts Rankings
World Rank
250,195
Country Rank
87,119
Institution Rank : 186
![](https://cdn.adscientificindex.com/logos/5310.jpg)
![United States](/flags/us.png)
![Jianwei Wang](https://cdn.adscientificindex.com/pictures/72/1414895.jpg)
Computational Geochemistry
Earth materials
and Nuclear materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,943
1,651
0.419
* Total Citation Counts Rankings
World Rank
258,496
Country Rank
7,578
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/26588.png)
![Spain](/flags/es.png)
![Gabriela Román-Ross](/user/assets/images/profile/no-profile-photo.png)
geochemistry
nuclear wastes
waste management
mine wastes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,799
1,653
0.435
* Total Citation Counts Rankings
World Rank
276,481
Country Rank
6,835
Institution Rank : 385
![](https://cdn.adscientificindex.com/logos/9847.png)
![Brazil](/flags/br.png)
![Daniel Marcos Bonotto](/user/assets/images/profile/no-profile-photo.png)
Geofísica Nuclear
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,514
1,559
0.444
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
9,283
![United States](/flags/us.png)
4,455
![](https://cdn.adscientificindex.com/logos/8488.png)
212
Rodney C Ewing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,342
16,318
0.318
![](https://cdn.adscientificindex.com/logos/8488.png)
geology
materials science
nuclear materials
environmental
nuclear waste
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
24,313
![United States](/flags/us.png)
11,230
![](https://cdn.adscientificindex.com/logos/10899.png)
52
Thorne Lay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,928
8,018
0.287
![](https://cdn.adscientificindex.com/logos/10899.png)
Seismology
Earthquake Studies
Earth Structure Studies
Elastic Wave Propagation
Nuclear Explosion Monitoring
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
37,679
![United States](/flags/us.png)
16,870
![](https://cdn.adscientificindex.com/logos/15844.png)
21
John R Bargar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,661
9,049
0.438
![](https://cdn.adscientificindex.com/logos/15844.png)
Biogeochemistry Water-rock interactions Nuclear Forensics
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
37,696
![United States](/flags/us.png)
16,880
![](https://cdn.adscientificindex.com/logos/11862.jpg)
164
Katharina Lodders
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,654
7,045
0.341
![](https://cdn.adscientificindex.com/logos/11862.jpg)
astronomy and astrophysics
nuclear chemistry
cosmochemistry
meteoritics
planetary sciences
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
73,830
![United States](/flags/us.png)
30,683
![](https://cdn.adscientificindex.com/logos/16478.png)
178
Jens Birkholzer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,471
5,262
0.422
![](https://cdn.adscientificindex.com/logos/16478.png)
Hydrogeology
Geomechanics
Geologic carbon sequestration
Geologic nuclear waste disposal
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
84,788
![Australia](/flags/au.png)
3,862
![](https://cdn.adscientificindex.com/logos/26654.png)
6
David Fink
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,122
3,775
0.339
![](https://cdn.adscientificindex.com/logos/26654.png)
earth sciences
cosmogenic isotopes
Accelerator Mass spectrometry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
88,957
![United States](/flags/us.png)
36,116
![](https://cdn.adscientificindex.com/logos/7038.jpg)
284
Christopher Chyba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,684
2,456
0.230
![](https://cdn.adscientificindex.com/logos/7038.jpg)
planetary science
origins of life
electrodynamics
nuclear nonproliferation and arms control
biological security
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
92,219
![United States](/flags/us.png)
37,254
![](https://cdn.adscientificindex.com/logos/11187.jpg)
18
Nelson Eby
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,364
3,650
0.352
![](https://cdn.adscientificindex.com/logos/11187.jpg)
Geochemistry
forensics
nuclear methods
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
96,149
![United States](/flags/us.png)
38,630
![](https://cdn.adscientificindex.com/logos/11254.jpg)
125
Antonio Simonetti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,998
4,003
0.400
![](https://cdn.adscientificindex.com/logos/11254.jpg)
isotope geochemistry
geochronology
nuclear forensics
carbonatites
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
103,561
![United States](/flags/us.png)
41,233
![](https://cdn.adscientificindex.com/logos/15783.jpg)
132
Terry C Wallace, Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,360
1,638
0.175
![](https://cdn.adscientificindex.com/logos/15783.jpg)
seismology
mineralogy
nuclear explosions
minerals
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* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
114,007
![Spain](/flags/es.png)
2,738
![](https://cdn.adscientificindex.com/logos/14636.jpg)
62
J. Jaime Gómez-Hernández
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,604
2,427
0.282
![](https://cdn.adscientificindex.com/logos/14636.jpg)
Geostatistics
Hydrogeology
Inverse modeling
Stochastic Groundwater Modeling
Nuclear Waste Disposal
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
114,857
![China](/flags/cn.png)
4,817
![](https://cdn.adscientificindex.com/logos/4593.jpg)
36
Zhenxue Dai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,548
5,964
0.698
![](https://cdn.adscientificindex.com/logos/4593.jpg)
Geochemical modeling
upscaling
carbon storage
reservoir characterization
nuclear waste disposal
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
132,722
![Austria](/flags/at.png)
786
![](https://cdn.adscientificindex.com/logos/15668.png)
13
Matt Kilburn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,504
3,796
0.506
![](https://cdn.adscientificindex.com/logos/15668.png)
Nuclear safeguards
Secondary Ion Mass Spectrometry
geochemistry
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
136,016
![United States](/flags/us.png)
52,139
![](https://cdn.adscientificindex.com/logos/11280.jpg)
729
Reto Gieré
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,331
3,258
0.444
![](https://cdn.adscientificindex.com/logos/11280.jpg)
mineralogy
petrology
geology
particulate matter
nuclear waste
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
136,510
![United States](/flags/us.png)
52,297
![](https://cdn.adscientificindex.com/logos/11280.jpg)
731
Reto Gieré
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,307
3,238
0.443
![](https://cdn.adscientificindex.com/logos/11280.jpg)
mineralogy and petrology
geology
particulate matter
nuclear waste
environmental geochemistry and health
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
154,654
![United Kingdom](/flags/gb.png)
12,204
![](https://cdn.adscientificindex.com/logos/10902.jpg)
578
Ian Farnan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,490
1,809
0.279
![](https://cdn.adscientificindex.com/logos/10902.jpg)
nuclear materials
silicates
glasses
uranium dioxide
minerals
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
169,233
![United States](/flags/us.png)
62,744
![](https://cdn.adscientificindex.com/logos/15782.png)
132
William R Walter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,939
1,778
0.299
![](https://cdn.adscientificindex.com/logos/15782.png)
Geophysics
Seismology
Nuclear Explosion Monitoring
Earthquakes
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
188,287
![Italy](/flags/it.png)
8,239
![](https://cdn.adscientificindex.com/logos/24449.png)
470
Fabio Mantovani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,326
3,420
0.642
![](https://cdn.adscientificindex.com/logos/24449.png)
Nuclear and subnuclear geophysics
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
210,380
![United Kingdom](/flags/gb.png)
15,995
![](https://cdn.adscientificindex.com/logos/11168.jpg)
633
Katherine Morris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,750
2,665
0.561
![](https://cdn.adscientificindex.com/logos/11168.jpg)
Environmental Radioactivity
Mineralogy
Nuclear Environmental
Williamson Research Centre
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
213,799
![Germany](/flags/de.png)
8,689
![](https://cdn.adscientificindex.com/logos/7286.png)
168
Florian Amann
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,671
3,471
0.743
![](https://cdn.adscientificindex.com/logos/7286.png)
Geomechanics
rock mechanics
rock slope instablities
clay shales
nuclear waste
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
232,909
![Italy](/flags/it.png)
10,351
![](https://cdn.adscientificindex.com/logos/27052.png)
61
Daniele Carbone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,259
2,801
0.658
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
247,795
![Brazil](/flags/br.png)
5,835
![](https://cdn.adscientificindex.com/logos/9794.jpg)
1,498
Leila Soares Marques
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,985
1,255
0.315
![](https://cdn.adscientificindex.com/logos/9794.jpg)
Geofísica Nuclear
Litogeoquímica
Geologia Isotópica
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
250,195
![United States](/flags/us.png)
87,119
![](https://cdn.adscientificindex.com/logos/5310.jpg)
186
Jianwei Wang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,943
1,651
0.419
![](https://cdn.adscientificindex.com/logos/5310.jpg)
Computational Geochemistry
Earth materials
and Nuclear materials
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
258,496
![Spain](/flags/es.png)
7,578
![](https://cdn.adscientificindex.com/logos/26588.png)
1
Gabriela Román-Ross
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,799
1,653
0.435
![](https://cdn.adscientificindex.com/logos/26588.png)
geochemistry
nuclear wastes
waste management
mine wastes
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
276,481
![Brazil](/flags/br.png)
6,835
![](https://cdn.adscientificindex.com/logos/9847.png)
385
Daniel Marcos Bonotto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,514
1,559
0.444