The Citation Rankings (Highly Cited Researchers) 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
Earth observation
Terrestrial Ecosystems
Biodiversity Habitat
Remote Sensing
Canopy Structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,234
27,324
0.544
* Total Citation Counts Rankings
Ranking Based On Selection :2
Ecosystems
soils
land use history
pyrogenic carbon/fire history
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,856
1,387
0.157
* Total Citation Counts Rankings
Ranking Based On Selection :3
Planetary Science
Remote Sensing
Instrumentation
Geology
Mars
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,736
4,991
0.571
* Total Citation Counts Rankings
Ranking Based On Selection :4
isotope geochemistry
magmatic geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,944
1,512
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :5
Planetary science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,937
1,103
0.280
* Total Citation Counts Rankings
Ranking Based On Selection :6
tectonics
sedimentary geology
structural geology
stratigraphy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,802
1,417
0.373
* Total Citation Counts Rankings
Ranking Based On Selection :7
geological sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,699
1,720
0.465
* Total Citation Counts Rankings
Ranking Based On Selection :8
structural geology
tectonics
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,342
1,247
0.373
* Total Citation Counts Rankings
Ranking Based On Selection :9
Geochemistry
biogeochemistry
chemistry of metals
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,219
1,619
0.503
* Total Citation Counts Rankings
Ranking Based On Selection :10
Sedimentary Geology
Geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,727
1,317
0.483
* Total Citation Counts Rankings
Ranking Based On Selection :11
geology
petrology
tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
531
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :12
geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,008
963
0.480
* Total Citation Counts Rankings
Ranking Based On Selection :13
Petrology
Planetary Science
Planetary Remote Sensing
Planetary Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,744
1,407
0.807
* Total Citation Counts Rankings
Ranking Based On Selection :14
Paleoclimate
Glaciology
Physical Ice Properties
Ice Cores
Ice Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,497
1,106
0.739
* Total Citation Counts Rankings
Ranking Based On Selection :15
Planetary Geology
Laboratory Analyses
Remote Sensing
Field Techniques
Landscape Evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,437
1,179
0.820
* Total Citation Counts Rankings
Ranking Based On Selection :16
biogeochemistry
ecosystem science
forest ecology
phenology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,422
534
0.376
* Total Citation Counts Rankings
Ranking Based On Selection :17
Geomorphology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,297
381
0.294
* Total Citation Counts Rankings
Ranking Based On Selection :18
structural geology
active tectonics
tectonic geomorphology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,106
656
0.593
* Total Citation Counts Rankings
Ranking Based On Selection :19
seismic design of bridges
accelerated bridge construction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
797
387
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :20
Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
654
401
0.613
* Total Citation Counts Rankings
Ranking Based On Selection :21
Fluvial Geomorphology
Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
162
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :22
Earth System Science
Macroecology
EcoInformatics
Megafauna
Rewilding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
393
388
0.987
* Total Citation Counts Rankings
Ranking Based On Selection :23
Wildfires
Ecohydrology
Dendroclimatology
Climate Change
Isotope Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
165
0.851
* Total Citation Counts Rankings
Ranking Based On Selection :24
Geology and geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
140
0.838
* Total Citation Counts Rankings
Ranking Based On Selection :25
geographic information systems
spatial analysis
remote sensing
unmanned aerial systems
forest management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
144
0.986
Scott Goetz
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,234
27,324
0.544
Earth observation
Terrestrial Ecosystems
Biodiversity Habitat
Remote Sensing
Canopy Structure
Robert L Sanford Jr Buck
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,856
1,387
0.157
Ecosystems
soils
land use history
pyrogenic carbon/fire history
Christopher S Edwards
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,736
4,991
0.571
Planetary Science
Remote Sensing
Instrumentation
Geology
Mars
Mary Reid
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,944
1,512
0.254
isotope geochemistry
magmatic geochronology
Nadine Barlow
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,937
1,103
0.280
Paul J Umhoefer
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,802
1,417
0.373
tectonics
sedimentary geology
structural geology
stratigraphy
James B Gaherty
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,699
1,720
0.465
James Sample
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,342
1,247
0.373
structural geology
tectonics
geochemistry
Laura Wasylenki
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,219
1,619
0.503
Geochemistry
biogeochemistry
chemistry of metals
Michael Elliot Smith
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,727
1,317
0.483
Sedimentary Geology
Geochronology
Thomas D Hoisch
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
531
0.236
Roderic Parnell
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,008
963
0.480
Valérie Payré
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,744
1,407
0.807
Petrology
Planetary Science
Planetary Remote Sensing
Planetary Geochemistry
John M Fegyveresi
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,497
1,106
0.739
Paleoclimate
Glaciology
Physical Ice Properties
Ice Cores
Ice Geophysics
Mark Salvatore
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,437
1,179
0.820
Planetary Geology
Laboratory Analyses
Remote Sensing
Field Techniques
Landscape Evolution
Jim Le Moine
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,422
534
0.376
biogeochemistry
ecosystem science
forest ecology
phenology
Erik Schiefer
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,297
381
0.294
Christine Regalla
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,106
656
0.593
structural geology
active tectonics
tectonic geomorphology
Joshua Hewes
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
797
387
0.486
seismic design of bridges
accelerated bridge construction
Ryan Porter
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
654
401
0.613
Taylor Joyal
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
438
162
0.370
Fluvial Geomorphology
Hydrology
Andrew J Abraham
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
393
388
0.987
Earth System Science
Macroecology
EcoInformatics
Megafauna
Rewilding
Charles Truettner
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
165
0.851
Wildfires
Ecohydrology
Dendroclimatology
Climate Change
Isotope Geochemistry
Piyali Chanda
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
140
0.838
Patrick Shin
Northern Arizona University
Flagstaff, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
144
0.986
geographic information systems
spatial analysis
remote sensing
unmanned aerial systems
forest management