Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 134 Scientists Citation Rankings - 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.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Remote Sensing and GIS
Geology
Climate chang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,241
869
0.388
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Geomatic Engineering
Geodesy
Geosciences
Machine Learning/A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,157
1,811
0.840
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Gold beneficiation
Hydrometallurgy
Microwave processing of minerals
Small scale minin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,915
1,103
0.576
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Biomass energy
Anaerobic digestio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
1,149
0.998
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Groundwater and Geophysic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,057
863
0.816
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Gold hydrometallurgy
mycohydrometallurgy
bioprocessing of minerals
mine wastewate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,020
652
0.639
* Total Citation Counts Rankings
Ranking Based On Selection: 7
environmental toxicology
ecotoxicology
environmental health
biomonitoring of xenobiotic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
857
839
0.979
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Green Chemistry
CO2 Hydrogenation
Catalysis
Sustainable fuels
Porous material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
657
643
0.979
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Wireless Communications
Antenna Designs
Aerospace
Satellite Communications
RF Systems Design
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
618
376
0.608
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
CSR
Strategy
ESG
Small Scale Mining
Gol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
581
577
0.993
* Total Citation Counts Rankings
Ranking Based On Selection: 11
GIS
Remote Sensing
Vegetation Mapping
Land Survey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
550
420
0.764
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Reservoir Modeling and Simulatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
548
503
0.918
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Petrophysics
Source Rock Geochemistry
Artificial Intelligence (AI) and Machine Learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
543
530
0.976
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Drilling Optimization
Environment
Health and Safety in the Oil and Gas Industry
Petroleum Economic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
513
364
0.710
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Computer Science and Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490
410
0.837
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Artificial Intelligence
Explosives and Blasting Technology
Optimisation of Mining System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
444
440
0.991
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Petroleum Production
Oil water Separatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
412
391
0.949
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Drilling Optimisation
HSE
Natural Gas Utilisatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
271
0.681
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Soil Chemistry
Design and development of nanocatalysts and their environmental applications
Waste conversion for environmental application
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
371
0.951
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Process plant optimization
minerals flotation
aqueous processing and colloidal chemistry
minerals surface characterisation (
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
375
270
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Mining Optimization
Geostatistics
Explosives & Blasting
Mathematical Programming
Environmental Geochemistry & Modellin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322
267
0.829
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Hydrogeology
Geophysics
Applied Artificial Intelligenc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320
309
0.966
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Remote sensing/GIS for water resources management
Land surveyin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
196
0.632
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Information Literacy
workplace information literacy
Database management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
286
206
0.720
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Artificial Intelligence application in Petroleum
Petrochemical and Refining Engineering
raw materials and agro-waste evaluati
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
281
246
0.875
* Total Citation Counts Rankings
Rankings
426,604
232
1
Ranking Based On Selection: 1
Andy Yaw Kwarteng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,241
869
0.388
Remote Sensing and GIS
Geology
Climate chang
* Total Citation Counts Rankings
Rankings
438,491
242
2
Ranking Based On Selection: 2
Yao Yevenyo Ziggah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,157
1,811
0.840
Geomatic Engineering
Geodesy
Geosciences
Machine Learning/A
* Total Citation Counts Rankings
Rankings
477,081
281
3
Ranking Based On Selection: 3
Richard Amankwah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,915
1,103
0.576
Gold beneficiation
Hydrometallurgy
Microwave processing of minerals
Small scale minin
* Total Citation Counts Rankings
Rankings
653,588
513
4
Ranking Based On Selection: 4
Dominic Yellezuome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
1,149
0.998
* Total Citation Counts Rankings
Rankings
684,391
549
5
Ranking Based On Selection: 5
Anthony Ewusi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,057
863
0.816
* Total Citation Counts Rankings
Rankings
697,512
577
6
Ranking Based On Selection: 6
Grace Ofori Sarpong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,020
652
0.639
Gold hydrometallurgy
mycohydrometallurgy
bioprocessing of minerals
mine wastewate
* Total Citation Counts Rankings
Rankings
759,840
696
7
Ranking Based On Selection: 7
Eric Gyimah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
857
839
0.979
environmental toxicology
ecotoxicology
environmental health
biomonitoring of xenobiotic
* Total Citation Counts Rankings
Rankings
852,703
862
8
Ranking Based On Selection: 8
Bernard Baffour Asare-Bediako
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
657
643
0.979
Green Chemistry
CO2 Hydrogenation
Catalysis
Sustainable fuels
Porous material
* Total Citation Counts Rankings
Rankings
874,237
915
9
Ranking Based On Selection: 9
Solomon Nunoo|Iliya Solomon Zakwoi PhD, Dr Solomon Iliya Zakwoi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
618
376
0.608
Wireless Communications
Antenna Designs
Aerospace
Satellite Communications
RF Systems Design
* Total Citation Counts Rankings
Rankings
896,151
955
10
Ranking Based On Selection: 10
Frank Boateng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
581
577
0.993
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
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* Total Citation Counts Rankings
Rankings
917,388
1,005
11
Ranking Based On Selection: 11
Bernard Kumi-Boateng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
550
420
0.764
GIS
Remote Sensing
Vegetation Mapping
Land Survey
* Total Citation Counts Rankings
Rankings
918,696
1,008
12
Ranking Based On Selection: 12
Eric Thompson Brantson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
548
503
0.918
* Total Citation Counts Rankings
Rankings
922,362
1,015
13
Ranking Based On Selection: 13
Solomon Asante-Okyere
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
543
530
0.976
Petrophysics
Source Rock Geochemistry
Artificial Intelligence (AI) and Machine Learnin
* Total Citation Counts Rankings
Rankings
946,210
1,075
14
Ranking Based On Selection: 14
Eric Broni-Bediako
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
513
364
0.710
Drilling Optimization
Environment
Health and Safety in the Oil and Gas Industry
Petroleum Economic
* Total Citation Counts Rankings
Rankings
965,388
1,135
15
Ranking Based On Selection: 15
Emmanuel Effah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
490
410
0.837
Computer Science and Engineerin
* Total Citation Counts Rankings
Rankings
1,006,179
1,237
16
Ranking Based On Selection: 16
Clement Kweku Arthur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
444
440
0.991
Artificial Intelligence
Explosives and Blasting Technology
Optimisation of Mining System
* Total Citation Counts Rankings
Rankings
1,037,194
1,309
17
Ranking Based On Selection: 17
Osei Harrison
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
412
391
0.949
Petroleum Production
Oil water Separatio
* Total Citation Counts Rankings
Rankings
1,052,005
1,352
18
Ranking Based On Selection: 18
Richard Amorin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
398
271
0.681
* Total Citation Counts Rankings
Rankings
1,060,001
1,373
19
Ranking Based On Selection: 19
Thomas Wi-Afedzi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
371
0.951
Soil Chemistry
Design and development of nanocatalysts and their environmental applications
Waste conversion for environmental application
* Total Citation Counts Rankings
Rankings
1,076,605
1,417
20
Ranking Based On Selection: 20
Clement Owusu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
375
270
0.720
Process plant optimization
minerals flotation
aqueous processing and colloidal chemistry
minerals surface characterisation (
* Total Citation Counts Rankings
Rankings
1,140,782
1,637
21
Ranking Based On Selection: 21
Bright Oppong Afum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
322
267
0.829
Mining Optimization
Geostatistics
Explosives & Blasting
Mathematical Programming
Environmental Geochemistry & Modellin
* Total Citation Counts Rankings
Rankings
1,143,140
1,644
22
Ranking Based On Selection: 22
Jamel Seidu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
320
309
0.966
Hydrogeology
Geophysics
Applied Artificial Intelligenc
* Total Citation Counts Rankings
Rankings
1,157,604
1,682
23
Ranking Based On Selection: 23
Michael S. Aduah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
196
0.632
Remote sensing/GIS for water resources management
Land surveyin
* Total Citation Counts Rankings
Rankings
1,193,979
1,807
24
Ranking Based On Selection: 24
Franklina Adjoa Yebowaah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
286
206
0.720
Information Literacy
workplace information literacy
Database management
* Total Citation Counts Rankings
Rankings
1,201,894
1,835
25
Ranking Based On Selection: 25
Engr. Solomon Adjei Marfo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
281
246
0.875
Artificial Intelligence application in Petroleum
Petrochemical and Refining Engineering
raw materials and agro-waste evaluati