Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 213 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Agribusiness Marketing
Agribusiness Management
Value Chain Analysis
Agricultural Finance
Climate Change Economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,794
4,195
0.724
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Applied Machine Learning & AI
AI-powered Cybersecurity
Responsible AI
FinTech
Prompt Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,021
2,974
0.984
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Energy Systems Engineering
Energy Efficiency and Demand Side Management
Rural Power Suppl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,009
2,318
0.770
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Artificial Intelligence
Image Processing
Brain Image Analysis
Data Mining
Machine Learning an
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,352
2,275
0.967
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Food Science and Technolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,367
1,762
0.744
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
1,476
0.544
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Hydropower & Hydrology
Irrigation Development
Waste Management
Water Resources Management
Sustainable Energy Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,593
1,439
0.903
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Fisheries
Aquaculture
Ocean Governance
Climate Change
Natural Resources Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,171
925
0.790
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Waste management
construction materials
environmental managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
657
0.894
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Groundwater flow modelling
Irrigation and Drainage Engineering
Parameter estimation using mathematical models
Soil and Water Conservatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
642
625
0.974
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Agricultural and Rural Marketing
Agribusiness Branding
Supply & Value Chain Mgt
Consumer Studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
631
620
0.983
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Thermal - Fluids Engineering and Energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
606
0.824
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Soil Science
Environmental Soil Science
Land Reclamation
Nutrient Dynamic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
595
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Deep Learning
Bioinformatics
LLM
Residue Number Systems and AI of Internet of Thing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
630
590
0.937
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Microbiology
Water Sanitation and Hygiene
Environmental Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
527
0.841
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Entomophagy (Edible insects)
Stored product entomolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
683
489
0.716
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Fluid Machinery
Computational Fluid Dynamics
Thermodynamics and Energy System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
493
480
0.974
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
chemical pathology
metabolic markers
molecular diagnostics
bioassay development
eHealt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
499
471
0.944
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Inorganic chemistry
nanotechnology
water quality and medicinal plant
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
625
461
0.738
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Atmospheric Pollution and Monitoring
Atmospheric and Climate Change
Climate Change and Healt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
459
0.771
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Mixed Models
Overdispersed Models
Biostatistics
infectious disease modellin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
440
437
0.993
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Climate
Environment
Artificial intelligence and GIS
Minin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
428
0.998
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Image processing
A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
424
0.949
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Fisherie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
480
415
0.865
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Climate Change Risk and Vulnerability
Climate Change Impacts Mitigation and Adaptation Strategies
Rural Livelihood Systems
I
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
421
0.817
* Last 6 Years Citation Counts Rankings
Rankings
113,704
44
1
Ranking Based On Selection: 1
John Km Kuwornu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,794
4,195
0.724
Agribusiness Marketing
Agribusiness Management
Value Chain Analysis
Agricultural Finance
Climate Change Economic
* Last 6 Years Citation Counts Rankings
Rankings
169,932
74
2
Ranking Based On Selection: 2
Isaac Kofi Nti|Isaac Kofi, Kofi Nti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,021
2,974
0.984
Applied Machine Learning & AI
AI-powered Cybersecurity
Responsible AI
FinTech
Prompt Engineerin
* Last 6 Years Citation Counts Rankings
Rankings
222,074
113
3
Ranking Based On Selection: 3
Samuel Gyamfi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,009
2,318
0.770
Energy Systems Engineering
Energy Efficiency and Demand Side Management
Rural Power Suppl
* Last 6 Years Citation Counts Rankings
Rankings
226,433
122
4
Ranking Based On Selection: 4
Benjamin Asubam Weyori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,352
2,275
0.967
Artificial Intelligence
Image Processing
Brain Image Analysis
Data Mining
Machine Learning an
* Last 6 Years Citation Counts Rankings
Rankings
291,716
186
5
Ranking Based On Selection: 5
James Owusu Kwarteng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,367
1,762
0.744
Food Science and Technolog
* Last 6 Years Citation Counts Rankings
Rankings
342,754
247
6
Ranking Based On Selection: 6
Esi Awuah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,711
1,476
0.544
* Last 6 Years Citation Counts Rankings
Rankings
350,380
255
7
Ranking Based On Selection: 7
Eric Antwi Ofosu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,593
1,439
0.903
Hydropower & Hydrology
Irrigation Development
Waste Management
Water Resources Management
Sustainable Energy Managemen
* Last 6 Years Citation Counts Rankings
Rankings
496,604
430
8
Ranking Based On Selection: 8
Berchie Asiedu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,171
925
0.790
Fisheries
Aquaculture
Ocean Governance
Climate Change
Natural Resources Managemen
* Last 6 Years Citation Counts Rankings
Rankings
621,363
643
9
Ranking Based On Selection: 9
Francis Atta Kuranchie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
657
0.894
Waste management
construction materials
environmental managemen
* Last 6 Years Citation Counts Rankings
Rankings
640,249
678
10
Ranking Based On Selection: 10
Thomas Atta-Darkwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
642
625
0.974
Groundwater flow modelling
Irrigation and Drainage Engineering
Parameter estimation using mathematical models
Soil and Water Conservatio
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Last 6 Years Citation Counts Rankings
Rankings
643,328
682
11
Ranking Based On Selection: 11
Helena Oppong-Kyeremeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
631
620
0.983
Agricultural and Rural Marketing
Agribusiness Branding
Supply & Value Chain Mgt
Consumer Studie
* Last 6 Years Citation Counts Rankings
Rankings
651,913
695
12
Ranking Based On Selection: 12
Ebenezer Nyarko Kumi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
735
606
0.824
Thermal - Fluids Engineering and Energ
* Last 6 Years Citation Counts Rankings
Rankings
658,992
706
13
Ranking Based On Selection: 13
Alex Amerh Agbeshie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
595
1.000
Soil Science
Environmental Soil Science
Land Reclamation
Nutrient Dynamic
* Last 6 Years Citation Counts Rankings
Rankings
662,168
711
14
Ranking Based On Selection: 14
Patrick Kwabena Mensah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
630
590
0.937
Deep Learning
Bioinformatics
LLM
Residue Number Systems and AI of Internet of Thing
* Last 6 Years Citation Counts Rankings
Rankings
706,600
806
15
Ranking Based On Selection: 15
Samuel Fosu Gyasi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
527
0.841
Microbiology
Water Sanitation and Hygiene
Environmental Healt
* Last 6 Years Citation Counts Rankings
Rankings
737,199
858
16
Ranking Based On Selection: 16
Jacob Paarechuga Anankware
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
683
489
0.716
* Last 6 Years Citation Counts Rankings
Rankings
745,140
877
17
Ranking Based On Selection: 17
Kofi Asamoah Adu-Poku (Ph.D., Pe-Ghie)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
493
480
0.974
Fluid Machinery
Computational Fluid Dynamics
Thermodynamics and Energy System
* Last 6 Years Citation Counts Rankings
Rankings
753,082
890
18
Ranking Based On Selection: 18
Emmanuel Timmy Donkoh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
499
471
0.944
chemical pathology
metabolic markers
molecular diagnostics
bioassay development
eHealt
* Last 6 Years Citation Counts Rankings
Rankings
762,005
901
19
Ranking Based On Selection: 19
Selina Ama Saah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
625
461
0.738
Inorganic chemistry
nanotechnology
water quality and medicinal plant
* Last 6 Years Citation Counts Rankings
Rankings
763,924
906
20
Ranking Based On Selection: 20
Nana Agyemang Prempeh|Nana Prempeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
459
0.771
Atmospheric Pollution and Monitoring
Atmospheric and Climate Change
Climate Change and Healt
* Last 6 Years Citation Counts Rankings
Rankings
785,152
954
21
Ranking Based On Selection: 21
Mr. Kassim Tawiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
440
437
0.993
Mixed Models
Overdispersed Models
Biostatistics
infectious disease modellin
* Last 6 Years Citation Counts Rankings
Rankings
794,241
975
22
Ranking Based On Selection: 22
Ebenezer K. Siabi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
428
0.998
Climate
Environment
Artificial intelligence and GIS
Minin
* Last 6 Years Citation Counts Rankings
Rankings
798,184
988
23
Ranking Based On Selection: 23
Obed Appiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
447
424
0.949
* Last 6 Years Citation Counts Rankings
Rankings
807,170
1,009
25
Ranking Based On Selection: 24
Samuel Kweku Konney Amponsah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
480
415
0.865
* Last 6 Years Citation Counts Rankings
Rankings
801,110
995
24
Ranking Based On Selection: 25
Amos Apraku
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
515
421
0.817
Climate Change Risk and Vulnerability
Climate Change Impacts Mitigation and Adaptation Strategies
Rural Livelihood Systems
I