Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.137 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
Frailty
cognitive impairment
ageing
geriatric medicine
dementi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,843
70,609
0.524
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Lithium-ion batteries
Physics & Chemistry of Materials for Energy Storage
Materials respirator applications
Electrochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,458
38,747
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Satellite Remote Sensing
Air Qualit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,510
58,260
0.644
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,907
42,640
0.628
* Total Citation Counts Rankings
Ranking Based On Selection: 5
enveloped viruses
open source programming
human influenza
membrane protein structure and dynamic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,677
63,695
0.985
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Galaxy Evolution
Cosmology
Instrumentation in Astronom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,422
19,874
0.340
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Marine ecology
biodiversity science
conservation biology
fisherie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,606
22,327
0.409
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Innovative health delivery
trauma
Pain
mental health in children
clinical psycholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,481
15,750
0.300
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Cardiometabolic disease
clinical epidemiology
disease burden
nutrition
food securit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,309
37,652
0.831
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
microbiome
genomics
metagenomics
bioinformatics
machine learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,860
38,047
0.848
* Total Citation Counts Rankings
Ranking Based On Selection: 11
depression
bipolar disorder
psychosis
prevention
personalized treatmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,401
23,710
0.534
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Evolution
genomics
microbiology
philosoph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,950
6,538
0.152
* Total Citation Counts Rankings
Ranking Based On Selection: 13
substance abuse
addictions
anxiety disorders
drinking motives
comorbidit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,653
14,882
0.357
* Total Citation Counts Rankings
Ranking Based On Selection: 14
oceanograph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,142
8,431
0.210
* Total Citation Counts Rankings
Ranking Based On Selection: 15
mathematical modeling of phenotypic agin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,140
21,123
0.526
* Total Citation Counts Rankings
Ranking Based On Selection: 16
mood disorders
lithium
bipolar disorder
psychiatr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,169
20,946
0.535
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,257
19,908
0.534
* Total Citation Counts Rankings
Ranking Based On Selection: 18
marine ecology
historical ecology
coastal ecosystems
human impacts..
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,151
16,072
0.433
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Economic anthropology
Indigenous entrepreneurship
minorities
SMEs
diversity equity and inclusio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,780
22,349
0.625
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Deep water whales
social structure
cultur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,191
10,245
0.309
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Marine biogeochemistry and microbial genomic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,039
11,689
0.354
* Total Citation Counts Rankings
Ranking Based On Selection: 22
home care patient safety qualitative research cystic fibrosis patient experience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,455
30,938
0.953
* Total Citation Counts Rankings
Ranking Based On Selection: 23
evolutionary developmental biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,971
5,965
0.187
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Protist Genomics
Mitochondria
Ribosome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,854
5,047
0.158
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Human perception
attention
cognition & performance
cognitive neuroscience
applied cognitive psycholog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,230
6,718
0.215
* Total Citation Counts Rankings
Rankings
1,890
77
1
Ranking Based On Selection: 1
Kenneth Rockwood
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,843
70,609
0.524
Frailty
cognitive impairment
ageing
geriatric medicine
dementi
* Total Citation Counts Rankings
Rankings
2,792
108
2
Ranking Based On Selection: 2
Jeff Dahn
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
110,458
38,747
0.351
Lithium-ion batteries
Physics & Chemistry of Materials for Energy Storage
Materials respirator applications
Electrochemistr
* Total Citation Counts Rankings
Rankings
4,060
158
3
Ranking Based On Selection: 3
Aaron Van Donkelaar
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,510
58,260
0.644
Satellite Remote Sensing
Air Qualit
* Total Citation Counts Rankings
Rankings
6,596
249
4
Ranking Based On Selection: 4
Manuel Mattheisen
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67,907
42,640
0.628
* Total Citation Counts Rankings
Rankings
7,111
264
5
Ranking Based On Selection: 5
Tyler Reddy
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,677
63,695
0.985
enveloped viruses
open source programming
human influenza
membrane protein structure and dynamic
* Total Citation Counts Rankings
Rankings
8,392
322
6
Ranking Based On Selection: 6
Scott Chapman
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,422
19,874
0.340
Galaxy Evolution
Cosmology
Instrumentation in Astronom
* Total Citation Counts Rankings
Rankings
9,352
363
7
Ranking Based On Selection: 7
Boris Worm
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,606
22,327
0.409
Marine ecology
biodiversity science
conservation biology
fisherie
* Total Citation Counts Rankings
Rankings
9,965
386
8
Ranking Based On Selection: 8
Patrick J Mcgrath
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,481
15,750
0.300
Innovative health delivery
trauma
Pain
mental health in children
clinical psycholog
* Total Citation Counts Rankings
Rankings
12,544
489
9
Ranking Based On Selection: 9
Leah Cahill
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,309
37,652
0.831
Cardiometabolic disease
clinical epidemiology
disease burden
nutrition
food securit
* Total Citation Counts Rankings
Rankings
12,760
497
10
Ranking Based On Selection: 10
Morgan Langille
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,860
38,047
0.848
microbiome
genomics
metagenomics
bioinformatics
machine learnin
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
12,996
510
11
Ranking Based On Selection: 11
Rudolf Uher
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,401
23,710
0.534
depression
bipolar disorder
psychosis
prevention
personalized treatmen
* Total Citation Counts Rankings
Rankings
13,716
546
12
Ranking Based On Selection: 12
W Ford Doolittle
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,950
6,538
0.152
Evolution
genomics
microbiology
philosoph
* Total Citation Counts Rankings
Rankings
14,399
578
13
Ranking Based On Selection: 13
Sherry H Stewart
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,653
14,882
0.357
substance abuse
addictions
anxiety disorders
drinking motives
comorbidit
* Total Citation Counts Rankings
Rankings
15,295
616
14
Ranking Based On Selection: 14
Trevor Platt
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,142
8,431
0.210
* Total Citation Counts Rankings
Rankings
15,297
617
15
Ranking Based On Selection: 15
Arnold Mitnitski
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,140
21,123
0.526
mathematical modeling of phenotypic agin
* Total Citation Counts Rankings
Rankings
15,887
641
16
Ranking Based On Selection: 16
Martin Alda
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,169
20,946
0.535
mood disorders
lithium
bipolar disorder
psychiatr
* Total Citation Counts Rankings
Rankings
17,171
712
17
Ranking Based On Selection: 17
Michael Ungar
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,257
19,908
0.534
* Total Citation Counts Rankings
Rankings
17,244
714
18
Ranking Based On Selection: 18
Heike K Lotze
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,151
16,072
0.433
marine ecology
historical ecology
coastal ecosystems
human impacts..
* Total Citation Counts Rankings
Rankings
18,306
756
19
Ranking Based On Selection: 19
Leo Paul Dana
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,780
22,349
0.625
Economic anthropology
Indigenous entrepreneurship
minorities
SMEs
diversity equity and inclusio
* Total Citation Counts Rankings
Rankings
20,515
837
20
Ranking Based On Selection: 20
Hal Whitehead
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,191
10,245
0.309
Deep water whales
social structure
cultur
* Total Citation Counts Rankings
Rankings
20,675
844
21
Ranking Based On Selection: 21
Julie Laroche
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,039
11,689
0.354
Marine biogeochemistry and microbial genomic
* Total Citation Counts Rankings
Rankings
21,283
875
22
Ranking Based On Selection: 22
Marilyn Macdonald
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,455
30,938
0.953
home care patient safety qualitative research cystic fibrosis patient experience
* Total Citation Counts Rankings
Rankings
21,794
893
23
Ranking Based On Selection: 23
Brian Keith Hall
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,971
5,965
0.187
evolutionary developmental biolog
* Total Citation Counts Rankings
Rankings
21,910
899
24
Ranking Based On Selection: 24
Michael W Gray
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,854
5,047
0.158
Protist Genomics
Mitochondria
Ribosome
* Total Citation Counts Rankings
Rankings
22,572
935
25
Ranking Based On Selection: 25
Raymond M Klein
Dalhousie University
Halifax, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,230
6,718
0.215
Human perception
attention
cognition & performance
cognitive neuroscience
applied cognitive psycholog