Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, 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)
* Total Citation Counts Rankings
World Rank
256,754
Country Rank
89,048
Institution Rank : 24
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Richard J Behl](https://cdn.adscientificindex.com/pictures/5d/848089.jpg)
Sedimentary Geology - Paleoceanography - Monterey Shale
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,819
771
0.202
* Total Citation Counts Rankings
World Rank
309,763
Country Rank
104,403
Institution Rank : 29
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Matthew W Becker](https://cdn.adscientificindex.com/pictures/2a/833315.jpg)
hydrogeology
hydrology
fractures
geothermal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,065
1,241
0.405
* Total Citation Counts Rankings
World Rank
906,219
Country Rank
254,289
Institution Rank : 156
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Robert D Francis](/user/assets/images/profile/no-profile-photo.png)
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
496
127
0.256
* Total Citation Counts Rankings
World Rank
940,302
Country Rank
260,950
Institution Rank : 164
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Gregory Holk](/user/assets/images/profile/no-profile-photo.png)
Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
128
0.290
* Total Citation Counts Rankings
World Rank
1,002,060
Country Rank
272,405
Institution Rank : 176
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Nathan W Onderdonk](/pictures/f7/4768193.jpg)
tectonic geomorphology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
355
153
0.431
* Total Citation Counts Rankings
World Rank
1,385,998
Country Rank
330,756
Institution Rank : 235
![](https://cdn.adscientificindex.com/logos/1167.png)
![United States](/flags/us.png)
![Alyssa Abbey](/pictures/b1/5263872.jpg)
Tectonics
Structural Geology
Science Communication
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
102
0.971
* Total Citation Counts Rankings
World Ranking
256,754
Country Ranking
89,048
Institution Ranking
24
Richard J Behl
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,819
771
0.202
![](https://cdn.adscientificindex.com/logos/1167.png)
Sedimentary Geology - Paleoceanography - Monterey Shale
* Total Citation Counts Rankings
World Ranking
309,763
Country Ranking
104,403
Institution Ranking
29
Matthew W Becker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,065
1,241
0.405
![](https://cdn.adscientificindex.com/logos/1167.png)
hydrogeology
hydrology
fractures
geothermal
* Total Citation Counts Rankings
World Ranking
906,219
Country Ranking
254,289
Institution Ranking
156
Robert D Francis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
496
127
0.256
* Total Citation Counts Rankings
World Ranking
940,302
Country Ranking
260,950
Institution Ranking
164
Gregory Holk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
442
128
0.290
* Total Citation Counts Rankings
World Ranking
1,002,060
Country Ranking
272,405
Institution Ranking
176
Nathan W Onderdonk
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
355
153
0.431
* Total Citation Counts Rankings
World Ranking
1,385,998
Country Ranking
330,756
Institution Ranking
235
Alyssa Abbey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
102
0.971
![](https://cdn.adscientificindex.com/logos/1167.png)
Tectonics
Structural Geology
Science Communication