Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![Peter Kevan](https://cdn.adscientificindex.com/pictures/39/642007.jpg)
pollination
micrometeorology
entomology
botany
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,956
6,722
0.306
![Heikki Junninen](https://cdn.adscientificindex.com/pictures/f5/1451379.jpg)
Atmospheric nucleation
mass spectrometry
time of flight
tofTools
positive matrix factorization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,865
11,801
0.540
![Chris Funk](https://cdn.adscientificindex.com/pictures/33/1832497.jpg)
Climate
Food Security
Climate Extremes/Change
Early Warning
Adaptation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,325
14,838
0.696
![DWT Griffith](/user/assets/images/profile/no-profile-photo.png)
atmospheric science
atmospheric chemistry
atmospheric measurement techniquies
spectroscopy
Fourier Transform spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,281
9,166
0.431
![A Park Williams](https://cdn.adscientificindex.com/pictures/da/1751074.jpg)
bioclimatology
drought
climate change
forests
fire
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,200
16,976
0.801
![Pier Luigi Vidale](/user/assets/images/profile/no-profile-photo.png)
Atmospheric science
climatology
land surface processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,190
9,479
0.447
![F Martin Ralph](https://cdn.adscientificindex.com/pictures/9b/1771828.jpg)
Precipitation
Hydrometeorology
Water Resources
Mesoscale Meteorology
Mountain Meteorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,126
13,049
0.618
![Alastair Lewis](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,028
10,746
0.511
![Rachel Webster](/user/assets/images/profile/no-profile-photo.png)
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,852
8,402
0.403
![Fwtaylor](https://cdn.adscientificindex.com/pictures/e3/1150217.jpg)
atmospheric physics
planetary climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,503
4,743
0.231
![Steven Sherwood](/user/assets/images/profile/no-profile-photo.png)
atmospheric science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,312
10,728
0.528
![Andrew F Nagy](https://cdn.adscientificindex.com/pictures/35/1297467.jpg)
Ionosphere
Plasma Physics
Aeronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,224
4,350
0.215
![W James Shuttleworth](https://cdn.adscientificindex.com/pictures/7a/1740917.jpg)
Hydrology
Hydrometeorology
Meteorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,024
3,737
0.187
![Rodrigo Vargas](https://cdn.adscientificindex.com/pictures/9e/1777633.jpg)
climate change
carbon cycle
ecosystem ecology
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,403
13,500
0.696
![M Rami Alfarra](https://cdn.adscientificindex.com/pictures/b6/1451369.jpg)
Air Quality
Sources and Processes of Air Pollution
Atmospheric Chemistry & Composition
Air
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,367
6,569
0.339
![Stephen J Burns](/user/assets/images/profile/no-profile-photo.png)
paleoclimatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,249
6,052
0.314
![Max Boykoff](/user/assets/images/profile/no-profile-photo.png)
climate
media communication & science-policy
decarbonization
political ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,095
10,772
0.564
![Larry Lyons](/user/assets/images/profile/no-profile-photo.png)
Space Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,821
4,595
0.244
![Steve Ackerman](/user/assets/images/profile/no-profile-photo.png)
weather
climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,641
5,767
0.309
![David A Robinson](/user/assets/images/profile/no-profile-photo.png)
climate
snow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,596
5,987
0.322
![Masahiro Watanabe](https://cdn.adscientificindex.com/pictures/49/411236.jpg)
Climate Science
Atmospheric Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,495
11,247
0.608
![Ankur Desai](https://cdn.adscientificindex.com/pictures/2e/1878731.jpg)
Carbon cycle
climate
micrometeorology
biogeochemistry
eddy covariance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,473
10,983
0.595
![Jennifer E Kay](/user/assets/images/profile/no-profile-photo.png)
climate
clouds
polar regions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,180
11,648
0.641
![John P Boyd](/user/assets/images/profile/no-profile-photo.png)
Atmospheric science
oceanography
applied mathematics
numerical analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,140
4,933
0.272
![Niu Guo Yue 牛国跃](https://cdn.adscientificindex.com/pictures/83/1737939.jpg)
Hydrometeorology
Ecohydrology
Distributed hydrological modeling & reactive transport
Land surface
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,135
8,464
0.467
Peter Kevan
University of Guelph
Guelph, Canada
![Canada](/flags/ca.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,956
6,722
0.306
pollination
micrometeorology
entomology
botany
ecology
Heikki Junninen
University of Tartu
Tartu, Estonia
![Estonia](/flags/ee.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,865
11,801
0.540
Atmospheric nucleation
mass spectrometry
time of flight
tofTools
positive matrix factorization
Chris Funk
University of California Santa Barbara
Santa Barbara, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,325
14,838
0.696
Climate
Food Security
Climate Extremes/Change
Early Warning
Adaptation
DWT Griffith
University of Wollongong
Wollongong, Australia
![Australia](/flags/au.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,281
9,166
0.431
atmospheric science
atmospheric chemistry
atmospheric measurement techniquies
spectroscopy
Fourier Transform spectroscopy
A Park Williams
University of California Los Angeles
Los Angeles, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,200
16,976
0.801
bioclimatology
drought
climate change
forests
fire
Pier Luigi Vidale
University of Reading
Reading, United Kingdom
![United Kingdom](/flags/gb.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,190
9,479
0.447
Atmospheric science
climatology
land surface processes
F Martin Ralph
University of California San Diego
San Diego, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,126
13,049
0.618
Precipitation
Hydrometeorology
Water Resources
Mesoscale Meteorology
Mountain Meteorology
Alastair Lewis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,028
10,746
0.511
Rachel Webster
University of Melbourne
Melbourne, Australia
![Australia](/flags/au.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,852
8,402
0.403
Fwtaylor
University of Oxford
Oxford, United Kingdom
![United Kingdom](/flags/gb.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,503
4,743
0.231
atmospheric physics
planetary climate
Steven Sherwood
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,312
10,728
0.528
Andrew F Nagy
University of Michigan
Ann Arbor, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,224
4,350
0.215
Ionosphere
Plasma Physics
Aeronomy
W James Shuttleworth
University of Arizona
Tucson, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,024
3,737
0.187
Hydrology
Hydrometeorology
Meteorology
Rodrigo Vargas
University of Delaware
Newark, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,403
13,500
0.696
climate change
carbon cycle
ecosystem ecology
biogeochemistry
M Rami Alfarra
University of Manchester
Manchester, United Kingdom
![United Kingdom](/flags/gb.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,367
6,569
0.339
Air Quality
Sources and Processes of Air Pollution
Atmospheric Chemistry & Composition
Air
Stephen J Burns
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,249
6,052
0.314
Max Boykoff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,095
10,772
0.564
climate
media communication & science-policy
decarbonization
political ecology
Larry Lyons
University of California Los Angeles
Los Angeles, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,821
4,595
0.244
Steve Ackerman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,641
5,767
0.309
David A Robinson
Rutgers The State University of New Jersey
New Brunswick, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,596
5,987
0.322
Masahiro Watanabe
University of Tokyo
Tokyo, Japan
![Japan](/flags/jp.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,495
11,247
0.608
Climate Science
Atmospheric Sciences
Ankur Desai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,473
10,983
0.595
Carbon cycle
climate
micrometeorology
biogeochemistry
eddy covariance
Jennifer E Kay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,180
11,648
0.641
climate
clouds
polar regions
John P Boyd
University of Michigan
Ann Arbor, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,140
4,933
0.272
Atmospheric science
oceanography
applied mathematics
numerical analysis
Niu Guo Yue 牛国跃
University of Arizona
Tucson, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,135
8,464
0.467
Hydrometeorology
Ecohydrology
Distributed hydrological modeling & reactive transport
Land surface