Citation Rankings
Highly Cited Researchers

World Highly Cited Researchers CitationNatural Sciences / Geography Rankings 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :151
Switzerland
Sean D Willett
Geomorphology
Tectonics
Sedimentology
Geodynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,477
5,484
0.379
* Total Citation Counts Rankings
Ranking Based On Selection :152
United Kingdom
Jamie Pearce
Health geography
unhealthy commodities
health inequalities
environmental justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,432
7,291
0.505
* Total Citation Counts Rankings
Ranking Based On Selection :153
United States
Kenneth R Young
biogeography
conservation biology
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,345
6,139
0.428
* Total Citation Counts Rankings
Ranking Based On Selection :154
United Kingdom
Paul M Mather
Remote sensing
GIS
pattern recognition
classification
image processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,220
3,539
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :155
United Kingdom
Mathias Disney
Remote sensing
terrestrial lidar
forest structure
biomass
3D radiative transfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,205
8,290
0.584
* Total Citation Counts Rankings
Ranking Based On Selection :156
United States
Jay Lee
Geographic Information Science
Geospatial Analysis
Geo-simulations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,172
4,842
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :157
Australia
Rosemary Hill
human geography
biodiversity conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,166
11,032
0.779
* Total Citation Counts Rankings
Ranking Based On Selection :158
South Africa
Susan Parnell
Urban
Africa
SDGs
local government
global change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,995
7,434
0.531
* Total Citation Counts Rankings
Ranking Based On Selection :159
Switzerland
Kull Christian A
geography
political ecology
development
environment - (*pdfs of many publications available on Homepage*)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,959
7,605
0.545
* Total Citation Counts Rankings
Ranking Based On Selection :160
Netherlands
Maarten Van Ham
regional studies
urban regeneration
neighbourhood effects
segregation
residential mobility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,958
7,888
0.565
* Total Citation Counts Rankings
Ranking Based On Selection :161
United States
Gregory Okin
Geomorphology
Aeolian Processes
Plant-Soil Interactions
Ecological Theory
Savannas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,923
6,768
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :162
United Kingdom
Steve Pile
Human Geography
Urban Geography
Cultural Geography
Affect
Subjectivity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,899
2,836
0.204
* Total Citation Counts Rankings
Ranking Based On Selection :163
Germany
Jürgen Scheffran
Climate-Migration-Conflict
Energy-Water-Food Nexus
Rural-Urban-Coastal Relations
Complexity-Stability-Sustainability
ABM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,836
9,207
0.665
* Total Citation Counts Rankings
Ranking Based On Selection :164
Germany
Jürgen Böhner
Physical Geography
Climatology
GIS
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,639
9,743
0.714
* Total Citation Counts Rankings
Ranking Based On Selection :165
United Kingdom
chris hamnett
urban education
urban social change and housing
gentrification
polarization
inequality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,619
3,146
0.231
* Total Citation Counts Rankings
Ranking Based On Selection :166
Canada
Bruce Newbold
immigration
health
migration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,527
5,312
0.393
* Total Citation Counts Rankings
Ranking Based On Selection :167
United Kingdom
Mark Mulligan
Environmental Modelling
hydrology
global environmental change
biodiversity
ecosystem services
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,522
8,635
0.639
* Total Citation Counts Rankings
Ranking Based On Selection :168
United States
Sarah E Lester
Marine ecology
marine conservation science
fisheries management
biogeography
marine aquaculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,504
6,857
0.508
* Total Citation Counts Rankings
Ranking Based On Selection :169
United Kingdom
Stefan Bouzarovski
Energy justice
Energy poverty
Urban studies
Just transitions
Political ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,497
9,594
0.711
* Total Citation Counts Rankings
Ranking Based On Selection :170
United States
Henri D Grissino Mayer
Biogeography
Paleoclimatology
Dendrochronology
Archaeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,304
4,072
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :171
United Kingdom
Henry G Overman
Urban economics and policy
local economic growth
evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,285
4,303
0.324
* Total Citation Counts Rankings
Ranking Based On Selection :172
Australia
JB Kirkpatrick
ecology geography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,258
3,412
0.257
* Total Citation Counts Rankings
Ranking Based On Selection :173
China
Jonathan Adams
microbial ecology
biogeography
climate
soils
biogeochemical cycles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,110
7,070
0.539
* Total Citation Counts Rankings
Ranking Based On Selection :174
United States
Connie Woodhouse
Climatology
paleoclimatology
dendrochronology
science and decision making
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,102
5,625
0.429
* Total Citation Counts Rankings
Ranking Based On Selection :175
United States
Michael Kaspari
Geographical ecology
Community Ecology
Entomology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,032
6,064
0.465
* Total Citation Counts Rankings
Rankings
60,690
Switzerland
1,107
239
Ranking Based On Selection: 151
Sean D Willett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,477
5,484
0.379
Geomorphology
Tectonics
Sedimentology
Geodynamics
* Total Citation Counts Rankings
Rankings
60,947
United Kingdom
5,226
165
Ranking Based On Selection: 152
Jamie Pearce
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,432
7,291
0.505
Health geography
unhealthy commodities
health inequalities
environmental justice
* Total Citation Counts Rankings
Rankings
61,426
United States
26,096
269
Ranking Based On Selection: 153
Kenneth R Young
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,345
6,139
0.428
biogeography
conservation biology
climate change
* Total Citation Counts Rankings
Rankings
62,125
United Kingdom
5,334
120
Ranking Based On Selection: 154
Paul M Mather
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,220
3,539
0.249
Remote sensing
GIS
pattern recognition
classification
image processing
* Total Citation Counts Rankings
Rankings
62,221
United Kingdom
5,346
454
Ranking Based On Selection: 155
Mathias Disney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,205
8,290
0.584
Remote sensing
terrestrial lidar
forest structure
biomass
3D radiative transfer
* Total Citation Counts Rankings
Rankings
62,421
United States
26,458
17
Ranking Based On Selection: 156
Jay Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,172
4,842
0.342
Geographic Information Science
Geospatial Analysis
Geo-simulations
* Total Citation Counts Rankings
Rankings
62,447
Australia
2,801
81
Ranking Based On Selection: 157
Rosemary Hill
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,166
11,032
0.779
human geography
biodiversity conservation
* Total Citation Counts Rankings
Rankings
63,438
South Africa
214
42
Ranking Based On Selection: 158
Susan Parnell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,995
7,434
0.531
Urban
Africa
SDGs
local government
global change
* Total Citation Counts Rankings
Rankings
63,679
Switzerland
1,149
100
Ranking Based On Selection: 159
Kull Christian A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,959
7,605
0.545
geography
political ecology
development
environment - (*pdfs of many publications available on Homepage*)
* Total Citation Counts Rankings
Rankings
63,684
Netherlands
1,665
78
Ranking Based On Selection: 160
Maarten Van Ham
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,958
7,888
0.565
regional studies
urban regeneration
neighbourhood effects
segregation
residential mobility
* Total Citation Counts Rankings
Rankings
63,916
United States
27,032
511
Ranking Based On Selection: 161
Gregory Okin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,923
6,768
0.486
Geomorphology
Aeolian Processes
Plant-Soil Interactions
Ecological Theory
Savannas
* Total Citation Counts Rankings
Rankings
64,047
United Kingdom
5,485
20
Ranking Based On Selection: 162
Steve Pile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,899
2,836
0.204
Human Geography
Urban Geography
Cultural Geography
Affect
Subjectivity
* Total Citation Counts Rankings
Rankings
64,419
Germany
2,836
51
Ranking Based On Selection: 163
Jürgen Scheffran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,836
9,207
0.665
Climate-Migration-Conflict
Energy-Water-Food Nexus
Rural-Urban-Coastal Relations
Complexity-Stability-Sustainability
ABM
* Total Citation Counts Rankings
Rankings
65,638
Germany
2,889
53
Ranking Based On Selection: 164
Jürgen Böhner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,639
9,743
0.714
Physical Geography
Climatology
GIS
Remote Sensing
* Total Citation Counts Rankings
Rankings
65,784
United Kingdom
5,632
258
Ranking Based On Selection: 165
chris hamnett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,619
3,146
0.231
urban education
urban social change and housing
gentrification
polarization
inequality
* Total Citation Counts Rankings
Rankings
66,387
Canada
2,965
187
Ranking Based On Selection: 166
Bruce Newbold
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,527
5,312
0.393
* Total Citation Counts Rankings
Rankings
66,409
United Kingdom
5,669
262
Ranking Based On Selection: 167
Mark Mulligan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,522
8,635
0.639
Environmental Modelling
hydrology
global environmental change
biodiversity
ecosystem services
* Total Citation Counts Rankings
Rankings
66,548
United States
28,029
75
Ranking Based On Selection: 168
Sarah E Lester
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,504
6,857
0.508
Marine ecology
marine conservation science
fisheries management
biogeography
marine aquaculture
* Total Citation Counts Rankings
Rankings
66,596
United Kingdom
5,686
235
Ranking Based On Selection: 169
Stefan Bouzarovski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,497
9,594
0.711
Energy justice
Energy poverty
Urban studies
Just transitions
Political ecology
* Total Citation Counts Rankings
Rankings
67,823
United States
28,493
77
Ranking Based On Selection: 170
Henri D Grissino Mayer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,304
4,072
0.306
Biogeography
Paleoclimatology
Dendrochronology
Archaeology
* Total Citation Counts Rankings
Rankings
67,931
United Kingdom
5,795
79
Ranking Based On Selection: 171
Henry G Overman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,285
4,303
0.324
Urban economics and policy
local economic growth
evaluation
* Total Citation Counts Rankings
Rankings
68,082
Australia
3,094
60
Ranking Based On Selection: 172
JB Kirkpatrick
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,258
3,412
0.257
* Total Citation Counts Rankings
Rankings
69,085
China
2,762
60
Ranking Based On Selection: 173
Jonathan Adams
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,110
7,070
0.539
microbial ecology
biogeography
climate
soils
biogeochemical cycles
* Total Citation Counts Rankings
Rankings
69,148
United States
28,958
204
Ranking Based On Selection: 174
Connie Woodhouse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,102
5,625
0.429
Climatology
paleoclimatology
dendrochronology
science and decision making
* Total Citation Counts Rankings
Rankings
69,637
United States
29,119
45
Ranking Based On Selection: 175
Michael Kaspari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,032
6,064
0.465
Geographical ecology
Community Ecology
Entomology