Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 177 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
Iraq
Azad Rasul
Remote Sensing
Climate
Earth Observation
Thermal Remote Sensing
Physical Geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,452
5,239
0.961
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Iraq
Samir Mustafa Hamad
Green Nanotechnology
Nanoscience
Physic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,599
2,506
0.964
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Iraq
Jagar A. Ali
World's top 2% scientist
Petroleum Engineering
EOR
Nanotechnology
Drilling Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,601
2,508
0.964
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Iraq
Till Paasche
Security
War
Kurdista
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,159
1,274
0.590
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Iraq
Kamal Kolo
Biogeosciences
Microbes-Mineral interactions
Petroleum Geology
Paleoclimate Reconstructio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,085
1,664
0.798
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Iraq
Hossein Khojasteh
Green catalyst
Hydrophobic
Nanosynthesis
Nanomaterials Engineering
Inorganic Nanoparticle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,812
1,331
0.735
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Iraq
Aryanfar H Sherwani
Concrete Technology
Construction Materials
Sustainable Concrete
Recycled Material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,343
1,323
0.985
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Iraq
Ako Daraei
Rock/Soil Mechanics
Geomechanics
Underground Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
969
910
0.939
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Iraq
Gaylan Rasul Faqe Ibrahim
Remote Sensing
Precision Agriculture
Climate
Solar powe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
912
830
0.910

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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

* Total Citation Counts Rankings
Ranking Based On Selection: 10
Iraq
Ibtisam Kamal
Chemical Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
818
681
0.833
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Iraq
Rahel Hamad
GIS Remote Sensing Landscape Ecosystem Ecology Hydrolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
705
670
0.950
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Iraq
Hasan M Hameed
GIS
Remote Sensing
Hydrology
Watersheds
multi-criteria decision-makin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
519
0.845
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Iraq
Bushra Hussain Shnawa
Parasitology
Immunology
Biomedical science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593
561
0.946
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Iraq
Zana Hasan Babakr
childhood maltreatment
Big five
addictive behavior
risk-taking
dark tria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
540
528
0.978
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Iraq
Pakstan Faiq Mohamedamin
Criminal Psychology
Investigative Psycholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481
469
0.975
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Iraq
Rzger Abdulkarim Abdula
PETROLEUM GEOLOG
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
470
400
0.851
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Iraq
Yousef Farhad Mirzaei
Molecular Parasitology
Immunology
Drug Resistance
Nanoparticle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
421
376
0.893
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Iraq
Payam Ismael
Construction Materials
Building
Lab Testing
Machine Learning
AI in Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
409
409
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Iraq
Mahfouz Rostamzadeh
Mathematics
Geometry
Mathematical Physics
Numerical Analysis
Optimizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
394
356
0.904
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Iraq
Fariba Azizzadeh
public organizations
women
qualitative research
HRM
leadershi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
359
307
0.855
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Iraq
Redar
business Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
307
90
0.293
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Iraq
Mazin Sherzad Othman
Condensed matter physics
Solid state physics
DFT
Nanostructures
Thin film
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
288
229
0.795
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Iraq
Osama Zebari
Single-Chain Polymer Nanoparticles
Metal Nanoparticles
Catalyst
polymer/graphene nanocomposite
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
280
280
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Iraq
Arkan Jasim Hadi
Thermodynamic
separation process
polymer recycling
phase equilibriu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276
209
0.757
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Iraq
Sarbast Mamnd Hussein
Chemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
265
192
0.725
* Total Citation Counts Rankings
Rankings
199,096
Iraq
56
1
Ranking Based On Selection: 1
Azad Rasul
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,452
5,239
0.961
Remote Sensing
Climate
Earth Observation
Thermal Remote Sensing
Physical Geography
* Total Citation Counts Rankings
Rankings
380,607
Iraq
160
3
Ranking Based On Selection: 2
Samir Mustafa Hamad
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,599
2,506
0.964
* Total Citation Counts Rankings
Rankings
380,376
Iraq
159
2
Ranking Based On Selection: 3
Jagar A. Ali
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,601
2,508
0.964
World's top 2% scientist
Petroleum Engineering
EOR
Nanotechnology
Drilling Engineerin
* Total Citation Counts Rankings
Rankings
436,949
Iraq
212
4
Ranking Based On Selection: 4
Till Paasche
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,159
1,274
0.590
* Total Citation Counts Rankings
Rankings
448,011
Iraq
223
5
Ranking Based On Selection: 5
Kamal Kolo
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,085
1,664
0.798
Biogeosciences
Microbes-Mineral interactions
Petroleum Geology
Paleoclimate Reconstructio
* Total Citation Counts Rankings
Rankings
494,102
Iraq
277
6
Ranking Based On Selection: 6
Hossein Khojasteh
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,812
1,331
0.735
Green catalyst
Hydrophobic
Nanosynthesis
Nanomaterials Engineering
Inorganic Nanoparticle
* Total Citation Counts Rankings
Rankings
597,128
Iraq
408
7
Ranking Based On Selection: 7
Aryanfar H Sherwani
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,343
1,323
0.985
Concrete Technology
Construction Materials
Sustainable Concrete
Recycled Material
* Total Citation Counts Rankings
Rankings
714,068
Iraq
602
8
Ranking Based On Selection: 8
Ako Daraei
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
969
910
0.939
Rock/Soil Mechanics
Geomechanics
Underground Structure
* Total Citation Counts Rankings
Rankings
736,020
Iraq
651
9
Ranking Based On Selection: 9
Gaylan Rasul Faqe Ibrahim
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
912
830
0.910
Remote Sensing
Precision Agriculture
Climate
Solar powe
* Total Citation Counts Rankings
Rankings
774,515
Iraq
723
10
Ranking Based On Selection: 10
Ibtisam Kamal
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
818
681
0.833

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

* Total Citation Counts Rankings
Rankings
826,045
Iraq
847
11
Ranking Based On Selection: 11
Rahel Hamad
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
705
670
0.950
GIS Remote Sensing Landscape Ecosystem Ecology Hydrolog
* Total Citation Counts Rankings
Rankings
873,911
Iraq
998
12
Ranking Based On Selection: 12
Hasan M Hameed
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
614
519
0.845
GIS
Remote Sensing
Hydrology
Watersheds
multi-criteria decision-makin
* Total Citation Counts Rankings
Rankings
886,065
Iraq
1,028
13
Ranking Based On Selection: 13
Bushra Hussain Shnawa
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
593
561
0.946
Parasitology
Immunology
Biomedical science
* Total Citation Counts Rankings
Rankings
921,222
Iraq
1,145
14
Ranking Based On Selection: 14
Zana Hasan Babakr
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
540
528
0.978
childhood maltreatment
Big five
addictive behavior
risk-taking
dark tria
* Total Citation Counts Rankings
Rankings
969,051
Iraq
1,358
15
Ranking Based On Selection: 15
Pakstan Faiq Mohamedamin
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
481
469
0.975
Criminal Psychology
Investigative Psycholog
* Total Citation Counts Rankings
Rankings
979,040
Iraq
1,415
16
Ranking Based On Selection: 16
Rzger Abdulkarim Abdula
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
470
400
0.851
* Total Citation Counts Rankings
Rankings
1,024,386
Iraq
1,629
17
Ranking Based On Selection: 17
Yousef Farhad Mirzaei
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
421
376
0.893
Molecular Parasitology
Immunology
Drug Resistance
Nanoparticle
* Total Citation Counts Rankings
Rankings
1,036,149
Iraq
1,695
18
Ranking Based On Selection: 18
Payam Ismael
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
409
409
1.000
Construction Materials
Building
Lab Testing
Machine Learning
AI in Engineerin
* Total Citation Counts Rankings
Rankings
1,051,769
Iraq
1,774
19
Ranking Based On Selection: 19
Mahfouz Rostamzadeh
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
394
356
0.904
Mathematics
Geometry
Mathematical Physics
Numerical Analysis
Optimizatio
* Total Citation Counts Rankings
Rankings
1,090,582
Iraq
1,999
20
Ranking Based On Selection: 20
Fariba Azizzadeh
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
359
307
0.855
public organizations
women
qualitative research
HRM
leadershi
* Total Citation Counts Rankings
Rankings
1,157,826
Iraq
2,408
21
Ranking Based On Selection: 21
Redar
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
307
90
0.293
* Total Citation Counts Rankings
Rankings
1,186,028
Iraq
2,604
22
Ranking Based On Selection: 22
Mazin Sherzad Othman
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
288
229
0.795
Condensed matter physics
Solid state physics
DFT
Nanostructures
Thin film
* Total Citation Counts Rankings
Rankings
1,198,486
Iraq
2,686
23
Ranking Based On Selection: 23
Osama Zebari
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
280
280
1.000
Single-Chain Polymer Nanoparticles
Metal Nanoparticles
Catalyst
polymer/graphene nanocomposite
* Total Citation Counts Rankings
Rankings
1,205,850
Iraq
2,739
24
Ranking Based On Selection: 24
Arkan Jasim Hadi
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
276
209
0.757
Thermodynamic
separation process
polymer recycling
phase equilibriu
* Total Citation Counts Rankings
Rankings
1,224,777
Iraq
2,877
25
Ranking Based On Selection: 25
Sarbast Mamnd Hussein
       Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
265
192
0.725