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
2,832
Country Rank
47
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/17147.png)
![China](/flags/cn.png)
![Xian-Hua Li/李献华](https://cdn.adscientificindex.com/pictures/ed/4600264.jpg)
Geochronology
Geochemistry
Petrology
Chemical geodynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
102,605
43,967
0.429
* Total Citation Counts Rankings
World Rank
10,575
Country Rank
312
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/1526.png)
![China](/flags/cn.png)
![Tao Wang](/user/assets/images/profile/no-profile-photo.png)
Fiber Gratings and Sensors
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,198
29,942
0.634
* Total Citation Counts Rankings
World Rank
12,117
Country Rank
47
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/11410.png)
![Norway](/flags/no.png)
![Robert James Brown](/user/assets/images/profile/no-profile-photo.png)
petroleum seismology
earthquake seismology
geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,342
22,849
0.527
* Total Citation Counts Rankings
World Rank
12,228
Country Rank
98
Institution Rank : 26
![](https://cdn.adscientificindex.com/logos/11056.jpg)
![Hong Kong](/flags/hk.png)
![Mei Fu Zhou](https://cdn.adscientificindex.com/pictures/21/409296.jpg)
Igneous Petrology
Economic Geology
Ore Deposits
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,055
20,113
0.467
* Total Citation Counts Rankings
World Rank
13,331
Country Rank
38
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/4915.png)
![Saudi Arabia](/flags/sa.png)
![MA Quraishi](https://cdn.adscientificindex.com/pictures/54/347477.jpg)
Corrosion
Corrosion Inhibitors
Green Chemistry
Electrochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,863
26,548
0.650
* Total Citation Counts Rankings
World Rank
16,181
Country Rank
7,667
Institution Rank : 74
![](https://cdn.adscientificindex.com/logos/11449.jpg)
![United States](/flags/us.png)
![Mukul Sharma](https://cdn.adscientificindex.com/pictures/b9/1640744.jpg)
petroleum engineering
hydraulic fracturing
formation damage
water injection
production engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,184
14,325
0.396
* Total Citation Counts Rankings
World Rank
19,568
Country Rank
9,175
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/29127.jpg)
![United States](/flags/us.png)
![Robert M Hazen](https://cdn.adscientificindex.com/pictures/a2/4375899.jpg)
mineralogy
astrobiology
astrochemistry
petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,027
10,593
0.331
* Total Citation Counts Rankings
World Rank
20,555
Country Rank
916
Institution Rank : 20
![](https://cdn.adscientificindex.com/logos/15049.jpg)
![Germany](/flags/de.png)
![Axel Gerdes](https://cdn.adscientificindex.com/pictures/85/4365453.jpg)
Geochronology
Isotope Geochemistry
LA-ICP-MS
Laser ablation
Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,059
17,474
0.563
* Total Citation Counts Rankings
World Rank
20,840
Country Rank
1,851
Institution Rank : 242
![](https://cdn.adscientificindex.com/logos/11272.jpg)
![United Kingdom](/flags/gb.png)
![Bernard J Wood](/user/assets/images/profile/no-profile-photo.png)
element partitioning
planetary accretion
volcanic gases
experimental petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,780
7,516
0.244
* Total Citation Counts Rankings
World Rank
20,634
Country Rank
9,630
Institution Rank : 394
![](https://cdn.adscientificindex.com/logos/8488.png)
![United States](/flags/us.png)
![Ken Peters](https://cdn.adscientificindex.com/pictures/89/1650029.jpg)
Petroleum biomarkers
chemometrics
stable isotopes
molecular archaeology
gas geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,996
12,041
0.388
* Total Citation Counts Rankings
World Rank
20,806
Country Rank
9,705
Institution Rank : 243
![](https://cdn.adscientificindex.com/logos/5568.jpg)
![United States](/flags/us.png)
![Timothy Grove](https://cdn.adscientificindex.com/pictures/b6/1476281.jpg)
Igneous petrology
Experimental Petrology
Geochemistry
Mineralogy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,815
8,722
0.283
* Total Citation Counts Rankings
World Rank
23,044
Country Rank
784
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/17147.png)
![China](/flags/cn.png)
![Yi-Gang Xu](https://cdn.adscientificindex.com/pictures/3a/4600280.jpg)
Igneous petrology/geochemistry
Lithospheric mantle
Large igneous provinces
Big mantle Wedge
Earth's habitability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,885
14,595
0.505
* Total Citation Counts Rankings
World Rank
23,259
Country Rank
800
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/1527.png)
![China](/flags/cn.png)
![Jie Ma](https://cdn.adscientificindex.com/pictures/6c/681805.jpg)
Environmental engineering
environmental microbiology
microbial ecology
vapor intrusion.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,689
23,299
0.812
* Total Citation Counts Rankings
World Rank
24,366
Country Rank
11,263
Institution Rank : 116
![](https://cdn.adscientificindex.com/logos/11449.jpg)
![United States](/flags/us.png)
![Gary A Pope](/user/assets/images/profile/no-profile-photo.png)
petroleum engineering
reservoir engineering
enhanced oil recovery
reservoir simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,862
9,477
0.340
* Total Citation Counts Rankings
World Rank
24,563
Country Rank
61
Institution Rank : 2
![](https://cdn.adscientificindex.com/logos/4915.png)
![Saudi Arabia](/flags/sa.png)
![Zhengwei Pan](/user/assets/images/profile/no-profile-photo.png)
nanotechnology
materials science
optical materials
near-infrared materials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,704
5,346
0.193
* Total Citation Counts Rankings
World Rank
25,161
Country Rank
1,025
Institution Rank : 65
![](https://cdn.adscientificindex.com/logos/10815.jpg)
![Canada](/flags/ca.png)
![DG Pearson](https://cdn.adscientificindex.com/pictures/a8/641703.jpg)
Geochemistry
igneous petrology
platinum group element geochemistry
Re-Os isotopes
Molecular pharmacology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,236
10,966
0.403
* Total Citation Counts Rankings
World Rank
26,582
Country Rank
64
Institution Rank : 3
![](https://cdn.adscientificindex.com/logos/4915.png)
![Saudi Arabia](/flags/sa.png)
![Ime Obot](https://cdn.adscientificindex.com/pictures/ec/486115.jpg)
Materials and Corrosion
Corrosion Inhibition
Computational and Theoretical Chemistry
Oilfield Corrosion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,264
17,689
0.674
* Total Citation Counts Rankings
World Rank
26,044
Country Rank
12,002
Institution Rank : 62
![](https://cdn.adscientificindex.com/logos/11525.jpg)
![United States](/flags/us.png)
![Cari Johnson](/user/assets/images/profile/no-profile-photo.png)
Sedimentology
Basin Analysis
Tectonics
Petroleum Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,620
11,390
0.428
* Total Citation Counts Rankings
World Rank
28,004
Country Rank
12,860
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/5310.jpg)
![United States](/flags/us.png)
![Peter Clift](https://cdn.adscientificindex.com/pictures/de/1418754.jpg)
Marine Geology
Sediment Provenance
Geology of Asia
Basin Analysis
Petroleum Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,361
12,973
0.512
* Total Citation Counts Rankings
World Rank
28,226
Country Rank
12,966
Institution Rank : 130
![](https://cdn.adscientificindex.com/logos/11449.jpg)
![United States](/flags/us.png)
![Larry Lake](https://cdn.adscientificindex.com/pictures/c5/1640799.jpg)
reservoir engineering
enhanced oil recovery
petroleum engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,223
8,223
0.326
* Total Citation Counts Rankings
World Rank
28,174
Country Rank
12,944
Institution Rank : 128
![](https://cdn.adscientificindex.com/logos/11449.jpg)
![United States](/flags/us.png)
![Kamy Sepehrnoori](/user/assets/images/profile/no-profile-photo.png)
Petroleum Engineering
Reservoir Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,259
13,184
0.522
* Total Citation Counts Rankings
World Rank
28,970
Country Rank
13,262
Institution Rank : 21
![](https://cdn.adscientificindex.com/logos/11114.png)
![United States](/flags/us.png)
![James C Hower](https://cdn.adscientificindex.com/pictures/53/1405498.jpg)
coal petrology
fly ash petrology
coal geochemistry
coal maceral origins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,792
13,062
0.527
* Total Citation Counts Rankings
World Rank
30,093
Country Rank
70
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/4915.png)
![Saudi Arabia](/flags/sa.png)
![Hafiz Muhammad Ali](https://cdn.adscientificindex.com/pictures/a9/548989.jpg)
Thermofluids
Condensation
Nanofluids
Heat Transfer Devices
Thermal Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,154
22,926
0.949
* Total Citation Counts Rankings
World Rank
29,755
Country Rank
1,041
Institution Rank : 41
![](https://cdn.adscientificindex.com/logos/6774.jpg)
![China](/flags/cn.png)
![Zhijun Jin(金之钧)](https://cdn.adscientificindex.com/pictures/60/687572.jpg)
Petroleum Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,357
11,279
0.463
* Total Citation Counts Rankings
World Rank
32,545
Country Rank
77
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/4915.png)
![Saudi Arabia](/flags/sa.png)
![Jack Dvorkin](https://cdn.adscientificindex.com/pictures/ba/547735.jpg)
earth sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,905
8,427
0.368
* Total Citation Counts Rankings
World Ranking
2,832
Country Ranking
47
Institution Ranking
1
Xian-Hua Li/李献华
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
102,605
43,967
0.429
![](https://cdn.adscientificindex.com/logos/17147.png)
Geochronology
Geochemistry
Petrology
Chemical geodynamics
* Total Citation Counts Rankings
World Ranking
10,575
Country Ranking
312
Institution Ranking
1
Tao Wang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,198
29,942
0.634
![](https://cdn.adscientificindex.com/logos/1526.png)
Fiber Gratings and Sensors
* Total Citation Counts Rankings
World Ranking
12,117
Country Ranking
47
Institution Ranking
2
Robert James Brown
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,342
22,849
0.527
![](https://cdn.adscientificindex.com/logos/11410.png)
petroleum seismology
earthquake seismology
geophysics
* Total Citation Counts Rankings
World Ranking
12,228
Country Ranking
98
Institution Ranking
26
Mei Fu Zhou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,055
20,113
0.467
![](https://cdn.adscientificindex.com/logos/11056.jpg)
Igneous Petrology
Economic Geology
Ore Deposits
* Total Citation Counts Rankings
World Ranking
13,331
Country Ranking
38
Institution Ranking
1
MA Quraishi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,863
26,548
0.650
![](https://cdn.adscientificindex.com/logos/4915.png)
Corrosion
Corrosion Inhibitors
Green Chemistry
Electrochemistry
* Total Citation Counts Rankings
World Ranking
16,181
Country Ranking
7,667
Institution Ranking
74
Mukul Sharma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,184
14,325
0.396
![](https://cdn.adscientificindex.com/logos/11449.jpg)
petroleum engineering
hydraulic fracturing
formation damage
water injection
production engineering
* Total Citation Counts Rankings
World Ranking
19,568
Country Ranking
9,175
Institution Ranking
5
Robert M Hazen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,027
10,593
0.331
![](https://cdn.adscientificindex.com/logos/29127.jpg)
mineralogy
astrobiology
astrochemistry
petrology
* Total Citation Counts Rankings
World Ranking
20,555
Country Ranking
916
Institution Ranking
20
Axel Gerdes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,059
17,474
0.563
![](https://cdn.adscientificindex.com/logos/15049.jpg)
Geochronology
Isotope Geochemistry
LA-ICP-MS
Laser ablation
Petrology
* Total Citation Counts Rankings
World Ranking
20,840
Country Ranking
1,851
Institution Ranking
242
Bernard J Wood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,780
7,516
0.244
![](https://cdn.adscientificindex.com/logos/11272.jpg)
element partitioning
planetary accretion
volcanic gases
experimental petrology
* Total Citation Counts Rankings
World Ranking
20,634
Country Ranking
9,630
Institution Ranking
394
Ken Peters
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,996
12,041
0.388
![](https://cdn.adscientificindex.com/logos/8488.png)
Petroleum biomarkers
chemometrics
stable isotopes
molecular archaeology
gas geochemistry
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* Total Citation Counts Rankings
World Ranking
20,806
Country Ranking
9,705
Institution Ranking
243
Timothy Grove
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,815
8,722
0.283
![](https://cdn.adscientificindex.com/logos/5568.jpg)
Igneous petrology
Experimental Petrology
Geochemistry
Mineralogy
* Total Citation Counts Rankings
World Ranking
23,044
Country Ranking
784
Institution Ranking
5
Yi-Gang Xu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,885
14,595
0.505
![](https://cdn.adscientificindex.com/logos/17147.png)
Igneous petrology/geochemistry
Lithospheric mantle
Large igneous provinces
Big mantle Wedge
Earth's habitability
* Total Citation Counts Rankings
World Ranking
23,259
Country Ranking
800
Institution Ranking
1
Jie Ma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,689
23,299
0.812
![](https://cdn.adscientificindex.com/logos/1527.png)
Environmental engineering
environmental microbiology
microbial ecology
vapor intrusion.
* Total Citation Counts Rankings
World Ranking
24,366
Country Ranking
11,263
Institution Ranking
116
Gary A Pope
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,862
9,477
0.340
![](https://cdn.adscientificindex.com/logos/11449.jpg)
petroleum engineering
reservoir engineering
enhanced oil recovery
reservoir simulation
* Total Citation Counts Rankings
World Ranking
24,563
Country Ranking
61
Institution Ranking
2
Zhengwei Pan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,704
5,346
0.193
![](https://cdn.adscientificindex.com/logos/4915.png)
nanotechnology
materials science
optical materials
near-infrared materials
* Total Citation Counts Rankings
World Ranking
25,161
Country Ranking
1,025
Institution Ranking
65
DG Pearson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,236
10,966
0.403
![](https://cdn.adscientificindex.com/logos/10815.jpg)
Geochemistry
igneous petrology
platinum group element geochemistry
Re-Os isotopes
Molecular pharmacology
* Total Citation Counts Rankings
World Ranking
26,582
Country Ranking
64
Institution Ranking
3
Ime Obot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,264
17,689
0.674
![](https://cdn.adscientificindex.com/logos/4915.png)
Materials and Corrosion
Corrosion Inhibition
Computational and Theoretical Chemistry
Oilfield Corrosion
* Total Citation Counts Rankings
World Ranking
26,044
Country Ranking
12,002
Institution Ranking
62
Cari Johnson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,620
11,390
0.428
![](https://cdn.adscientificindex.com/logos/11525.jpg)
Sedimentology
Basin Analysis
Tectonics
Petroleum Geology
* Total Citation Counts Rankings
World Ranking
28,004
Country Ranking
12,860
Institution Ranking
15
Peter Clift
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,361
12,973
0.512
![](https://cdn.adscientificindex.com/logos/5310.jpg)
Marine Geology
Sediment Provenance
Geology of Asia
Basin Analysis
Petroleum Geology
* Total Citation Counts Rankings
World Ranking
28,226
Country Ranking
12,966
Institution Ranking
130
Larry Lake
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,223
8,223
0.326
![](https://cdn.adscientificindex.com/logos/11449.jpg)
reservoir engineering
enhanced oil recovery
petroleum engineering
* Total Citation Counts Rankings
World Ranking
28,174
Country Ranking
12,944
Institution Ranking
128
Kamy Sepehrnoori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,259
13,184
0.522
![](https://cdn.adscientificindex.com/logos/11449.jpg)
Petroleum Engineering
Reservoir Simulation
* Total Citation Counts Rankings
World Ranking
28,970
Country Ranking
13,262
Institution Ranking
21
James C Hower
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,792
13,062
0.527
![](https://cdn.adscientificindex.com/logos/11114.png)
coal petrology
fly ash petrology
coal geochemistry
coal maceral origins
* Total Citation Counts Rankings
World Ranking
30,093
Country Ranking
70
Institution Ranking
4
Hafiz Muhammad Ali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,154
22,926
0.949
![](https://cdn.adscientificindex.com/logos/4915.png)
Thermofluids
Condensation
Nanofluids
Heat Transfer Devices
Thermal Management
* Total Citation Counts Rankings
World Ranking
29,755
Country Ranking
1,041
Institution Ranking
41
Zhijun Jin(金之钧)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,357
11,279
0.463
* Total Citation Counts Rankings
World Ranking
32,545
Country Ranking
77
Institution Ranking
5
Jack Dvorkin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,905
8,427
0.368