Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 65 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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
Development and Environmental Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,327
1,204
0.907
Get Full Access to Premium Data
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Aquaculture nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
896
751
0.838
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Climate variability and change
climate change adaptation
food security
climate change and rural development
climate change a
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
734
729
0.993
* Total Citation Counts Rankings
Ranking Based On Selection: 4
climate change and hydrometeorological hazards
watershed hydrology
GIS and Remote sensing applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
591
0.980
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Obesity and related issues
maternal and child health
fertility issues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
560
500
0.893
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Elderly Care
Family Caregiving
Maternal and Child Health
Gender and Reproductive Health Rights
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
672
667
0.993
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Urban geography
Urban planning
Environment planning
Community resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
486
462
0.951
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Environmental Quality
Waste Management
Water Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
245
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Air Quality
Climate and Weather
Artificial Intelligence
Renewable Energy
Systems Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
405
346
0.854
360° Institutional Performance & Benchmarking Click Here for Live Demo
Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Sustainability Science
urban sustainability
indigenous knowledge
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345
303
0.878
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Climate change and hydro-meteorological hazards
climate variability
climate change adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
320
0.964
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Environmental Science
Geochemistry
Nanomaterials
Natural Product chemistry
Aquaculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
331
325
0.982
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Development Finance
Financial Inclusion & Literacy
Inclusive Growth
Project Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
282
147
0.521
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Energy Transition
Development economics
Industrial policy
innovation
technological progress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
280
0.982
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Agriculture water resources management
Environmental Quality analysis
Irrigation and drainage
Soil Fertility
Water-Soil Cons
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
249
226
0.908
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Agriculture / plant protection
Nematology/Microbiology
Agric entomology
bio-economy
Biospheric environments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
204
0.883
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Organic chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
135
0.714
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Irrigation
Climate smart agriculture
Water resources management
Circular Economy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
189
0.979
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Environmental Quality Monitoring
Disaster Risk Reduction
Green Environment research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
116
0.644
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Environmental science
climate change
environmental chemistry
environmental impact assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
162
106
0.654
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Economics
Entrepreneurship
Energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
154
135
0.877
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Career Counselling
Implementation of Guidance & Counselling in schools
Human Resource Management
Adolescent Counselling
Comm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
116
0.748
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Environmental Geography
Urban Geography
Economic Geography
Biodiversity Conservation
Natural Resources Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139
105
0.755
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Information Literacy
RDM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
94
0.839
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Gender and Development
Rural Water Supply
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
72
0.692
* Total Citation Counts Rankings
Rankings
599,378
409
1
Ranking Based On Selection: 1
Anthony Amoah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,327
1,204
0.907
Development and Environmental Economics
* Total Citation Counts Rankings
Rankings
750,389
670
2
Ranking Based On Selection: 2
Ayisi Larbi Christian
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
896
751
0.838
* Total Citation Counts Rankings
Rankings
812,739
776
3
Ranking Based On Selection: 3
Peter Asare-Nuamah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
734
729
0.993
Climate variability and change
climate change adaptation
food security
climate change and rural development
climate change a
* Total Citation Counts Rankings
Rankings
877,564
898
4
Ranking Based On Selection: 4
Isaac Larbi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
603
591
0.980
climate change and hydrometeorological hazards
watershed hydrology
GIS and Remote sensing applications
* Total Citation Counts Rankings
Rankings
909,580
968
5
Ranking Based On Selection: 5
Grace Frempong Afrifa-Anane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
560
500
0.893
Obesity and related issues
maternal and child health
fertility issues
* Total Citation Counts Rankings
Rankings
910,199
969
6
Ranking Based On Selection: 6
Frank Kyei-Arthur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
672
667
0.993
Elderly Care
Family Caregiving
Maternal and Child Health
Gender and Reproductive Health Rights
* Total Citation Counts Rankings
Rankings
981,812
1,146
7
Ranking Based On Selection: 7
Louis Kusi Frimpong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
486
462
0.951
Urban geography
Urban planning
Environment planning
Community resilience
* Total Citation Counts Rankings
Rankings
1,023,181
1,258
8
Ranking Based On Selection: 8
Richard Amfo-Otu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
245
0.616
Environmental Quality
Waste Management
Water Quality
* Total Citation Counts Rankings
Rankings
1,038,290
1,299
9
Ranking Based On Selection: 9
Sam-Quarcoo Dotse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
405
346
0.854
Air Quality
Climate and Weather
Artificial Intelligence
Renewable Energy
Systems Engineering
* Total Citation Counts Rankings
Rankings
1,111,368
1,517
10
Ranking Based On Selection: 10
Shine Francis Gbedemah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
345
303
0.878
Sustainability Science
urban sustainability
indigenous knowledge
360° Institutional Performance & Benchmarking Click Here for Live Demo
Through advanced, institution-specific analytics and benchmarking, gain data-driven strategic insights into your academic performance, global standing, and competitive strengths. Compare your institution with 20 similarly ranked institutions at city, country, regional, and global levels, as well as with those in similar standings across 13 subjects, to uncover your institution’s strengths. More Info
* Total Citation Counts Rankings
Rankings
1,118,999
1,546
11
Ranking Based On Selection: 11
Andrew Manoba Limantol(Dr)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
332
320
0.964
Climate change and hydro-meteorological hazards
climate variability
climate change adaptation
* Total Citation Counts Rankings
Rankings
1,135,051
1,604
12
Ranking Based On Selection: 12
Droepenu Eric Kwabena
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
331
325
0.982
Environmental Science
Geochemistry
Nanomaterials
Natural Product chemistry
Aquaculture
* Total Citation Counts Rankings
Rankings
1,165,076
1,691
13
Ranking Based On Selection: 13
Eunice Stella Nyarko
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
282
147
0.521
Development Finance
Financial Inclusion & Literacy
Inclusive Growth
Project Management
* Total Citation Counts Rankings
Rankings
1,182,522
1,746
14
Ranking Based On Selection: 14
Rexford Kweku Asiama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
285
280
0.982
Energy Transition
Development economics
Industrial policy
innovation
technological progress
* Total Citation Counts Rankings
Rankings
1,236,881
1,929
15
Ranking Based On Selection: 15
Samuel Joe Acquah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
249
226
0.908
Agriculture water resources management
Environmental Quality analysis
Irrigation and drainage
Soil Fertility
Water-Soil Cons
* Total Citation Counts Rankings
Rankings
1,268,676
2,018
16
Ranking Based On Selection: 16
William K. Heve
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
231
204
0.883
Agriculture / plant protection
Nematology/Microbiology
Agric entomology
bio-economy
Biospheric environments
* Total Citation Counts Rankings
Rankings
1,359,714
2,280
17
Ranking Based On Selection: 17
Frimpong Atta Benjamin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
189
135
0.714
* Total Citation Counts Rankings
Rankings
1,361,260
2,282
18
Ranking Based On Selection: 18
Abdul-Rauf Malimanga Alhassan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
193
189
0.979
Irrigation
Climate smart agriculture
Water resources management
Circular Economy
* Total Citation Counts Rankings
Rankings
1,383,128
2,359
19
Ranking Based On Selection: 19
Lloyd Larbi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
116
0.644
Environmental Quality Monitoring
Disaster Risk Reduction
Green Environment research
* Total Citation Counts Rankings
Rankings
1,410,487
2,467
20
Ranking Based On Selection: 20
Ishmael Lente
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
162
106
0.654
Environmental science
climate change
environmental chemistry
environmental impact assessment
* Total Citation Counts Rankings
Rankings
1,421,142
2,507
21
Ranking Based On Selection: 21
Michael Karikari Appiah (Dr)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
154
135
0.877
Economics
Entrepreneurship
Energy
* Total Citation Counts Rankings
Rankings
1,448,006
2,592
22
Ranking Based On Selection: 22
Nyarko-Sampson Eric
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
155
116
0.748
Career Counselling
Implementation of Guidance & Counselling in schools
Human Resource Management
Adolescent Counselling
Comm
* Total Citation Counts Rankings
Rankings
1,489,660
2,715
23
Ranking Based On Selection: 23
Fatima Eshun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
139
105
0.755
Environmental Geography
Urban Geography
Economic Geography
Biodiversity Conservation
Natural Resources Management
* Total Citation Counts Rankings
Rankings
1,587,104
3,038
24
Ranking Based On Selection: 24
George Clifford Yamson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
94
0.839
Information Literacy
RDM
* Total Citation Counts Rankings
Rankings
1,591,706
3,054
25
Ranking Based On Selection: 25
Emmanuel Angmor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
104
72
0.692
