Citation Rankings
Highly Cited Researchers

San Diego State University Highly Cited Researchers CitationNatural Sciences / Geography Rankings 2025

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
United States
Piotr Jankowski
GIS
Spatial Decision Support Systems
Geocomputation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,616
3,707
0.349
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Stuart Aitken
children's geographies
youth activism
film
qualitative methods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,425
2,333
0.277
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
John R Weeks
demography
population
migration
health
GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,329
2,380
0.286
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
Li An
human-environment
landscape ecology
GIScience
complex systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,967
3,322
0.477
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Ming Hsiang Ming Tsou
Internet GIS
Social Media
Web GIS
Mobile GIS
Cartography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,108
2,383
0.467
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
André Skupin
Geographic Information Science (GIScience)
Cartography
Visual Data Mining
Information Visualization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,604
716
0.275
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Fernando J Bosco
urban geography
social geography
emotional geographies
food
Argentina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,117
898
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Pascale Joassart Marcelli
Food
Urban Geography
Immigration
Nonprofit
Children
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,062
901
0.437
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Kate Swanson
Migration
Borders
Youth
Cities
Latin America
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
949
0.533
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Atsushi Nara
Geography
GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
644
0.636
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Thomas Herman
geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
499
174
0.349
* Total Citation Counts Rankings
Rankings
91,586
United States
36,819
45
Ranking Based On Selection: 1
Piotr Jankowski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,616
3,707
0.349
GIS
Spatial Decision Support Systems
Geocomputation
* Total Citation Counts Rankings
Rankings
119,180
United States
46,285
66
Ranking Based On Selection: 2
Stuart Aitken
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,425
2,333
0.277
children's geographies
youth activism
film
qualitative methods
* Total Citation Counts Rankings
Rankings
120,731
United States
46,803
68
Ranking Based On Selection: 3
John R Weeks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,329
2,380
0.286
demography
population
migration
health
GIS
* Total Citation Counts Rankings
Rankings
146,520
United States
55,173
84
Ranking Based On Selection: 4
Li An
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,967
3,322
0.477
human-environment
landscape ecology
GIScience
complex systems
* Total Citation Counts Rankings
Rankings
199,941
United States
71,724
127
Ranking Based On Selection: 5
Ming Hsiang Ming Tsou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,108
2,383
0.467
Internet GIS
Social Media
Web GIS
Mobile GIS
Cartography
* Total Citation Counts Rankings
Rankings
360,806
United States
117,802
203
Ranking Based On Selection: 6
André Skupin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,604
716
0.275
Geographic Information Science (GIScience)
Cartography
Visual Data Mining
Information Visualization
* Total Citation Counts Rankings
Rankings
421,721
United States
134,442
230
Ranking Based On Selection: 7
Fernando J Bosco
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,117
898
0.424
urban geography
social geography
emotional geographies
food
Argentina
* Total Citation Counts Rankings
Rankings
430,026
United States
136,740
237
Ranking Based On Selection: 8
Pascale Joassart Marcelli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,062
901
0.437
Food
Urban Geography
Immigration
Nonprofit
Children
* Total Citation Counts Rankings
Rankings
476,821
United States
149,268
272
Ranking Based On Selection: 9
Kate Swanson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
949
0.533
Migration
Borders
Youth
Cities
Latin America
* Total Citation Counts Rankings
Rankings
673,391
United States
199,972
360
Ranking Based On Selection: 10
Atsushi Nara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,012
644
0.636
* Total Citation Counts Rankings
Rankings
916,900
United States
253,891
443
Ranking Based On Selection: 11
Thomas Herman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
499
174
0.349