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 Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :226
glaciology
paleoclimatology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,347
4,924
0.434
* Total Citation Counts Rankings
Ranking Based On Selection :227
Remote Sensing
GIS
human-environment
land cover/land use change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,311
2,672
0.236
* Total Citation Counts Rankings
Ranking Based On Selection :228
Pollination ecology
ecogeography of the Aegean
natural resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,302
5,710
0.505
* Total Citation Counts Rankings
Ranking Based On Selection :229
land change
fire
classification trees
random forests
urban forest assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,286
6,209
0.550
* Total Citation Counts Rankings
Ranking Based On Selection :230
human geography
urban studies
economic geography
labour markets
migration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,280
1,870
0.166
* Total Citation Counts Rankings
Ranking Based On Selection :231
mathematical demography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,270
1,593
0.141
* Total Citation Counts Rankings
Ranking Based On Selection :232
Geography
Human Geography
Social Theory
Democracy
Urban Studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,247
3,396
0.302
* Total Citation Counts Rankings
Ranking Based On Selection :233
glaciology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,232
4,515
0.402
* Total Citation Counts Rankings
Ranking Based On Selection :234
Hydrology and water resources
hydrologic extremes
Spatial hydrology
Water ecosystem services
Water use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,230
6,216
0.554
* Total Citation Counts Rankings
Ranking Based On Selection :235
Wetland hydrology
restoration
reclamation
solute and NAPL transport
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,196
4,776
0.427
* Total Citation Counts Rankings
Ranking Based On Selection :236
Political Geography
Cultural Geography
Feminist Geography
Social Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,188
3,196
0.286
* Total Citation Counts Rankings
Ranking Based On Selection :237
Climate Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,145
7,793
0.699
* Total Citation Counts Rankings
Ranking Based On Selection :238
climate change
globalization
vulnerability
economic geography
global environmental change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,040
4,192
0.380
* Total Citation Counts Rankings
Ranking Based On Selection :239
geographic information science
complexity
land change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,034
4,229
0.383
* Total Citation Counts Rankings
Ranking Based On Selection :240
desert dust
drylands
desertification
wind erosion
sand and dust storms
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,033
4,384
0.397
* Total Citation Counts Rankings
Ranking Based On Selection :241
Water Resource
Regional Economics
Environmental Science
Climate Change
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,016
2,974
0.270
* Total Citation Counts Rankings
Ranking Based On Selection :242
Land Use/Cover Change
Agent Based Models
GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,010
3,408
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :243
conservation
protected areas
marine
tropics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,960
4,025
0.367
* Total Citation Counts Rankings
Ranking Based On Selection :244
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,947
3,891
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :245
Remote Sensing
Geoarchaeology
GIS
Geomorphology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,904
4,368
0.401
* Total Citation Counts Rankings
Ranking Based On Selection :246
palynology
Scotland
archaeology
North Atlantic
Viking
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,880
3,328
0.306
* Total Citation Counts Rankings
Ranking Based On Selection :247
Human Geography
China's Urbanization
Land Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,863
3,595
0.331
* Total Citation Counts Rankings
Ranking Based On Selection :248
geography
ecosystem services
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,839
9,852
0.909
* Total Citation Counts Rankings
Ranking Based On Selection :249
Rivers
Quaternary
Palaeolithic
Geoconservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,809
3,159
0.292
* Total Citation Counts Rankings
Ranking Based On Selection :250
Quaternary research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,779
6,145
0.570
* Total Citation Counts Rankings
Rankings
82,509
273
1
Ranking Based On Selection: 226
Olga Solomina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,347
4,924
0.434
* Total Citation Counts Rankings
Rankings
82,815
33,933
355
Ranking Based On Selection: 227
Stephen J Walsh
University of North Carolina Chapel Hill
Chapel Hill, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,311
2,672
0.236
Remote Sensing
GIS
human-environment
land cover/land use change
* Total Citation Counts Rankings
Rankings
82,887
429
3
Ranking Based On Selection: 228
Theodora Petanidou
University of the Aegean
Mytilene, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,302
5,710
0.505
Pollination ecology
ecogeography of the Aegean
natural resources
* Total Citation Counts Rankings
Rankings
83,012
34,022
13
Ranking Based On Selection: 229
John Rogan
Clark University
Worcester, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,286
6,209
0.550
land change
fire
classification trees
random forests
urban forest assessment
* Total Citation Counts Rankings
Rankings
83,072
7,028
90
Ranking Based On Selection: 230
Ian Gordon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,280
1,870
0.166
human geography
urban studies
economic geography
labour markets
migration
* Total Citation Counts Rankings
Rankings
83,161
34,069
239
Ranking Based On Selection: 231
Andrei Rogers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,270
1,593
0.141
* Total Citation Counts Rankings
Rankings
83,356
7,041
118
Ranking Based On Selection: 232
Clive Barnett
University of Exeter
Exeter, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,247
3,396
0.302
Geography
Human Geography
Social Theory
Democracy
Urban Studies
* Total Citation Counts Rankings
Rankings
83,485
128
28
Ranking Based On Selection: 233
Andres Rivera
Universidad de Chile
Santiago, Chile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,232
4,515
0.402
* Total Citation Counts Rankings
Rankings
83,494
34,188
28
Ranking Based On Selection: 234
Heejun Chang
Portland State University
Portland, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,230
6,216
0.554
Hydrology and water resources
hydrologic extremes
Spatial hydrology
Water ecosystem services
Water use
* Total Citation Counts Rankings
Rankings
83,803
3,725
148
Ranking Based On Selection: 235
Jonathan Price
University of Waterloo
Waterloo, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,196
4,776
0.427
Wetland hydrology
restoration
reclamation
solute and NAPL transport
* Total Citation Counts Rankings
Rankings
83,871
34,323
247
Ranking Based On Selection: 236
Sallie A Marston
University of Arizona
Tucson, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,188
3,196
0.286
Political Geography
Cultural Geography
Feminist Geography
Social Theory
* Total Citation Counts Rankings
Rankings
84,267
7,121
16
Ranking Based On Selection: 237
Nicholas Pepin
University of Portsmouth
Portsmouth, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,145
7,793
0.699
* Total Citation Counts Rankings
Rankings
85,226
34,785
98
Ranking Based On Selection: 238
Robin Leichenko
Rutgers The State University of New Jersey
New Brunswick, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,040
4,192
0.380
climate change
globalization
vulnerability
economic geography
global environmental change
* Total Citation Counts Rankings
Rankings
85,291
34,811
518
Ranking Based On Selection: 239
Steven M Manson
University of Minnesota Twin Cities
Minneapolis, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,034
4,229
0.383
geographic information science
complexity
land change
* Total Citation Counts Rankings
Rankings
85,298
7,203
710
Ranking Based On Selection: 240
Nicholas Middleton
University of Oxford
Oxford, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,033
4,384
0.397
desert dust
drylands
desertification
wind erosion
sand and dust storms
* Total Citation Counts Rankings
Rankings
85,473
3,474
22
Ranking Based On Selection: 241
Jianhua Xu, 徐建华
East China Normal University
Shanghai, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,016
2,974
0.270
Water Resource
Regional Economics
Environmental Science
Climate Change
Ecology
* Total Citation Counts Rankings
Rankings
85,522
3,814
152
Ranking Based On Selection: 242
Peter Deadman
University of Waterloo
Waterloo, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,010
3,408
0.310
Land Use/Cover Change
Agent Based Models
GIS
* Total Citation Counts Rankings
Rankings
86,020
3,845
65
Ranking Based On Selection: 243
Philip Dearden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,960
4,025
0.367
conservation
protected areas
marine
tropics
* Total Citation Counts Rankings
Rankings
86,141
7,263
93
Ranking Based On Selection: 244
Nicky Gregson
Durham University
Durham, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,947
3,891
0.355
* Total Citation Counts Rankings
Rankings
86,587
7,304
323
Ranking Based On Selection: 245
Nick Drake
King's College London
London, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,904
4,368
0.401
Remote Sensing
Geoarchaeology
GIS
Geomorphology
* Total Citation Counts Rankings
Rankings
86,796
7,330
68
Ranking Based On Selection: 246
Kevin J Edwards
University of Aberdeen
Aberdeen, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,880
3,328
0.306
palynology
Scotland
archaeology
North Atlantic
Viking
* Total Citation Counts Rankings
Rankings
86,956
711
177
Ranking Based On Selection: 247
George CS Lin
University of Hong Kong
Pok Fu Lam, Hong Kong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,863
3,595
0.331
Human Geography
China's Urbanization
Land Management
* Total Citation Counts Rankings
Rankings
87,149
3,553
31
Ranking Based On Selection: 248
Yanxu Liu
Beijing Normal University
Beijing, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,839
9,852
0.909
* Total Citation Counts Rankings
Rankings
87,419
7,379
95
Ranking Based On Selection: 249
David Bridgland
Durham University
Durham, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,809
3,159
0.292
Rivers
Quaternary
Palaeolithic
Geoconservation
* Total Citation Counts Rankings
Rankings
87,685
26
1
Ranking Based On Selection: 250
Slobodan B. Marković
University of Novi Sad
Novi Sad, Serbia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,779
6,145
0.570