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)
![James Ogg](https://cdn.adscientificindex.com/pictures/1a/1600481.jpg)
Earth History
TSCreator visualization and integrated stratigraphy
time scales
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,055
11,078
0.335
![Qianlai Zhuang](https://cdn.adscientificindex.com/pictures/cc/1505755.jpg)
Biogeochemistry and ecosystem modeling
earth system
atmospheric chemistry
greenhouse gas cycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,507
9,996
0.606
![Kyoung Soo Lee](/user/assets/images/profile/no-profile-photo.png)
observational cosmology
distant galaxies
galaxy formation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,596
5,994
0.384
![Jonathan Harbor](https://cdn.adscientificindex.com/pictures/9a/1548679.jpg)
geology
geography
education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,726
4,277
0.336
![Darryl E Granger](/user/assets/images/profile/no-profile-photo.png)
geology
geomorphology
geochronology
cosmogenic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,082
4,155
0.375
![Ayman Habib](https://cdn.adscientificindex.com/pictures/c5/1564601.jpg)
Geomatics
Photogrammetry
LiDAR
Mobile Mapping Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,280
3,741
0.452
![Gabriel Filippelli](https://cdn.adscientificindex.com/pictures/dd/1331168.jpg)
Environmental Chemistry
Health
and Climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,639
3,387
0.443
![Andrew M Freed](/user/assets/images/profile/no-profile-photo.png)
geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,887
2,474
0.420
![Kenneth D Ridgway](https://cdn.adscientificindex.com/pictures/08/1541793.jpg)
Sedimentary Geology
Tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,653
1,591
0.342
![Wen Wen Tung](/user/assets/images/profile/no-profile-photo.png)
Earth system dynamics
data science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
1,374
0.321
![Briony Horgan](https://cdn.adscientificindex.com/pictures/b0/1450739.jpg)
Planetary Science
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,899
3,390
0.869
![Gregory Druschel](https://cdn.adscientificindex.com/pictures/6a/1590695.jpg)
Geochemistry
geobiology
mineralogy
electrochemistry
sulfur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,817
1,498
0.392
![Brandon C Johnson](https://cdn.adscientificindex.com/pictures/8f/1463979.jpg)
Planetary Science
Impact Cratering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,720
1,903
0.700
![Michael P Eddy](https://cdn.adscientificindex.com/pictures/ca/1522413.jpg)
Geochronology
Geology
Tectonics
Igneous Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,316
1,704
0.736
![David Minton](/user/assets/images/profile/no-profile-photo.png)
Planetary Sciences
Asteroids
Dynamics
Planet formation
Impact cratering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,303
1,175
0.510
![Robert Nowack](https://cdn.adscientificindex.com/pictures/04/1500611.jpg)
geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,194
542
0.247
![Stephanie L Olson](https://cdn.adscientificindex.com/pictures/2a/1488345.jpg)
Earth system evolution
exoplanets
astrobiology
exo-oceanography
planetary habitability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,169
1,876
0.865
![William Gilhooly](https://cdn.adscientificindex.com/pictures/93/1469495.jpg)
Geobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,140
999
0.467
![Christopher Andronicos](/user/assets/images/profile/no-profile-photo.png)
Structural Geology and Tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,940
750
0.387
![Daniel T Dawson II](/user/assets/images/profile/no-profile-photo.png)
Meteorology
Severe Local Storms
Supercells
Tornadoes
Cloud and Precipitation Microphysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,681
994
0.591
![Michael Sori](https://cdn.adscientificindex.com/pictures/27/1463982.jpg)
Planetary Science
Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,420
1,228
0.865
![Carl Drummond](https://cdn.adscientificindex.com/pictures/5f/1450713.jpg)
Sedimentology
Stratigraphy
Structure and organization of Natural Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,303
235
0.180
![Ali M Bramson](https://cdn.adscientificindex.com/pictures/82/1554626.jpg)
planetary science
planetary surfaces
remote sensing
Mars ice
radar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,215
1,098
0.904
![Ryan Ickert](https://cdn.adscientificindex.com/pictures/88/1497840.jpg)
geology
isotope geochemistry
geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,179
675
0.573
![Terry West](/user/assets/images/profile/no-profile-photo.png)
Applied Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,166
310
0.266
James Ogg
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,055
11,078
0.335
Earth History
TSCreator visualization and integrated stratigraphy
time scales
Qianlai Zhuang
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,507
9,996
0.606
Biogeochemistry and ecosystem modeling
earth system
atmospheric chemistry
greenhouse gas cycling
Kyoung Soo Lee
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,596
5,994
0.384
observational cosmology
distant galaxies
galaxy formation
Jonathan Harbor
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,726
4,277
0.336
Darryl E Granger
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,082
4,155
0.375
geology
geomorphology
geochronology
cosmogenic
Ayman Habib
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,280
3,741
0.452
Geomatics
Photogrammetry
LiDAR
Mobile Mapping Systems
Gabriel Filippelli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,639
3,387
0.443
Environmental Chemistry
Health
and Climate
Andrew M Freed
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,887
2,474
0.420
Kenneth D Ridgway
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,653
1,591
0.342
Sedimentary Geology
Tectonics
Wen Wen Tung
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,276
1,374
0.321
Earth system dynamics
data science
Briony Horgan
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,899
3,390
0.869
Planetary Science
Remote Sensing
Gregory Druschel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,817
1,498
0.392
Geochemistry
geobiology
mineralogy
electrochemistry
sulfur
Brandon C Johnson
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,720
1,903
0.700
Planetary Science
Impact Cratering
Michael P Eddy
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,316
1,704
0.736
Geochronology
Geology
Tectonics
Igneous Petrology
David Minton
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,303
1,175
0.510
Planetary Sciences
Asteroids
Dynamics
Planet formation
Impact cratering
Robert Nowack
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,194
542
0.247
Stephanie L Olson
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,169
1,876
0.865
Earth system evolution
exoplanets
astrobiology
exo-oceanography
planetary habitability
William Gilhooly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,140
999
0.467
Christopher Andronicos
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,940
750
0.387
Structural Geology and Tectonics
Daniel T Dawson II
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,681
994
0.591
Meteorology
Severe Local Storms
Supercells
Tornadoes
Cloud and Precipitation Microphysics
Michael Sori
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,420
1,228
0.865
Planetary Science
Geophysics
Carl Drummond
Purdue University Fort Wayne
Fort Wayne, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,303
235
0.180
Sedimentology
Stratigraphy
Structure and organization of Natural Systems
Ali M Bramson
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,215
1,098
0.904
planetary science
planetary surfaces
remote sensing
Mars ice
radar
Ryan Ickert
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,179
675
0.573
geology
isotope geochemistry
geochronology
Terry West
Purdue University
West Lafayette, United States
![United States](/flags/us.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,166
310
0.266