Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 909 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
Ecosystem services
biodiversity
pollination
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,220
37,313
0.547
* Total Citation Counts Rankings
Ranking Based On Selection: 2
climate change
sea level change
climate sensitivity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,860
16,658
0.278
* Total Citation Counts Rankings
Ranking Based On Selection: 3
palaeoclimate
palaeoclimatology
land-atmosphere interactions
vegetation modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,631
18,335
0.330
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Distributed Systems middleware
eResearch
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,546
27,552
0.515
* Total Citation Counts Rankings
Ranking Based On Selection: 5
economics
history
international business
econometrics
entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,548
7,423
0.167
* Total Citation Counts Rankings
Ranking Based On Selection: 6
evolution
phylogenetics
comparative methods
evolutionary biology
language
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,802
9,054
0.207
* Total Citation Counts Rankings
Ranking Based On Selection: 7
International Business
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,034
7,596
0.181
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Polymers
Peptides
Self-Assembly
Soft Matter
Block Copolymers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,274
11,242
0.272
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,315
13,203
0.336
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Solar change
space weather
climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,770
16,044
0.414
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Tropospheric Chemistry
Earth System Modelling
Composition-climate interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,889
16,877
0.458
* Total Citation Counts Rankings
Ranking Based On Selection: 12
International HRM
Comparative HRM
expatriation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,582
9,907
0.295
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Urban Meteorology
Urban Climatology
Micrometeorology
Boundary Layer Meteorology
Hydroclimatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,127
12,598
0.380
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Clouds
Radiative transfer
Remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,963
25,848
0.784
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Climate Change
Global water cycle
Clouds and water vapour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,329
13,791
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Atmospheric dynamics
climate dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,575
10,115
0.381
* Total Citation Counts Rankings
Ranking Based On Selection: 17
climate variability
climate predictability
extreme weather events
historical climatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,164
13,263
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Individual Based Models in Ecology
Metabolic Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,665
5,735
0.233
* Total Citation Counts Rankings
Ranking Based On Selection: 19
climate variability and change
predictability and prediction
climate modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,916
8,597
0.375
* Total Citation Counts Rankings
Ranking Based On Selection: 20
international business
economic development
economics of innovation
emerging markets
R&D
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,524
6,924
0.307
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Atmospheric science
climatology
land surface processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,063
8,921
0.404
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Crops and climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,518
8,304
0.386
* Total Citation Counts Rankings
Ranking Based On Selection: 23
emotion
autism
empathy
mHealth
gut-brain axis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,379
9,781
0.505
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,953
11,885
0.627
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Archaeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,439
4,449
0.241
* Total Citation Counts Rankings
Rankings
6,244
531
1
Ranking Based On Selection: 1
Simon Potts
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,220
37,313
0.547
Ecosystem services
biodiversity
pollination
* Total Citation Counts Rankings
Rankings
7,684
670
2
Ranking Based On Selection: 2
Jonathan Gregory
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,860
16,658
0.278
climate change
sea level change
climate sensitivity
* Total Citation Counts Rankings
Rankings
8,677
756
3
Ranking Based On Selection: 3
Sandy P Harrison
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
55,631
18,335
0.330
palaeoclimate
palaeoclimatology
land-atmosphere interactions
vegetation modelling
* Total Citation Counts Rankings
Rankings
9,212
807
4
Ranking Based On Selection: 4
Garry Smith
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
53,546
27,552
0.515
Distributed Systems middleware
eResearch
* Total Citation Counts Rankings
Rankings
12,312
1,084
5
Ranking Based On Selection: 5
Mark Casson
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,548
7,423
0.167
economics
history
international business
econometrics
entrepreneurship
* Total Citation Counts Rankings
Rankings
12,678
1,119
6
Ranking Based On Selection: 6
Mark Pagel
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,802
9,054
0.207
evolution
phylogenetics
comparative methods
evolutionary biology
language
* Total Citation Counts Rankings
Rankings
13,530
1,191
1
Ranking Based On Selection: 7
Alan M Rugman
Henley Business School University of Reading
Henley-on-Thames, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,034
7,596
0.181
International Business
* Total Citation Counts Rankings
Rankings
13,938
1,229
7
Ranking Based On Selection: 8
Ian Hamley
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,274
11,242
0.272
Polymers
Peptides
Self-Assembly
Soft Matter
Block Copolymers
* Total Citation Counts Rankings
Rankings
15,091
1,312
8
Ranking Based On Selection: 9
Jeremy Pe Spencer
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,315
13,203
0.336
* Total Citation Counts Rankings
Rankings
15,410
1,339
9
Ranking Based On Selection: 10
Mike Lockwood
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,770
16,044
0.414
Solar change
space weather
climate
* Total Citation Counts Rankings
Rankings
16,666
1,461
10
Ranking Based On Selection: 11
Bill Collins
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,889
16,877
0.458
Tropospheric Chemistry
Earth System Modelling
Composition-climate interactions
* Total Citation Counts Rankings
Rankings
19,277
1,712
2
Ranking Based On Selection: 12
Chris Brewster
Henley Business School University of Reading
Henley-on-Thames, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,582
9,907
0.295
International HRM
Comparative HRM
expatriation
* Total Citation Counts Rankings
Rankings
19,684
1,755
11
Ranking Based On Selection: 13
Sue Grimmond
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,127
12,598
0.380
Urban Meteorology
Urban Climatology
Micrometeorology
Boundary Layer Meteorology
Hydroclimatology
* Total Citation Counts Rankings
Rankings
19,840
1,769
12
Ranking Based On Selection: 14
Robin Hogan
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,963
25,848
0.784
Clouds
Radiative transfer
Remote sensing
* Total Citation Counts Rankings
Rankings
20,465
1,832
13
Ranking Based On Selection: 15
Richard P Allan
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,329
13,791
0.427
Climate Change
Global water cycle
Clouds and water vapour
* Total Citation Counts Rankings
Rankings
27,636
2,412
14
Ranking Based On Selection: 16
Ted Shepherd
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,575
10,115
0.381
Atmospheric dynamics
climate dynamics
* Total Citation Counts Rankings
Rankings
28,271
2,471
15
Ranking Based On Selection: 17
Ed Hawkins
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,164
13,263
0.507
climate variability
climate predictability
extreme weather events
historical climatology
* Total Citation Counts Rankings
Rankings
30,876
2,703
16
Ranking Based On Selection: 18
Richard Sibly
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,665
5,735
0.233
Individual Based Models in Ecology
Metabolic Ecology
* Total Citation Counts Rankings
Rankings
34,268
3,007
17
Ranking Based On Selection: 19
Rowan Sutton
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,916
8,597
0.375
climate variability and change
predictability and prediction
climate modelling
* Total Citation Counts Rankings
Rankings
35,083
3,070
18
Ranking Based On Selection: 20
Rajneesh Narula
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,524
6,924
0.307
international business
economic development
economics of innovation
emerging markets
R&D
* Total Citation Counts Rankings
Rankings
36,126
3,162
19
Ranking Based On Selection: 21
Pier Luigi Vidale
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,063
8,921
0.404
Atmospheric science
climatology
land surface processes
* Total Citation Counts Rankings
Rankings
37,454
3,275
20
Ranking Based On Selection: 22
Tim Wheeler
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,518
8,304
0.386
* Total Citation Counts Rankings
Rankings
43,263
3,777
21
Ranking Based On Selection: 23
Bhismadev Chakrabarti
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,379
9,781
0.505
emotion
autism
empathy
mHealth
gut-brain axis
* Total Citation Counts Rankings
Rankings
44,619
3,887
22
Ranking Based On Selection: 24
Margaret Clare Smith
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,953
11,885
0.627
* Total Citation Counts Rankings
Rankings
46,356
4,027
23
Ranking Based On Selection: 25
Steven Mithen
University of Reading
Reading, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,439
4,449
0.241