Citation Rankings
Highly Cited Researchers

International Water Management Institute (IWMI) Highly Cited Researchers CitationOthers 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
Sri Lanka
Stefan Uhlenbrook
hydrology and water resources
climate change
ecosystems
food systems
sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,072
8,484
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :2
Sri Lanka
Mohammad Mohsin Hafeez
Water Resources Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,218
11,191
0.847
* Total Citation Counts Rankings
Ranking Based On Selection :3
Sri Lanka
Simon Langan
water quality
soils
river basin management
irrigation
water futures and scenarios
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,005
4,370
0.546
* Total Citation Counts Rankings
Ranking Based On Selection :4
Sri Lanka
Matthew Mccartney
water resources management
wetlands
livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,208
3,427
0.475
* Total Citation Counts Rankings
Ranking Based On Selection :5
Sri Lanka
Paul Pavelic
groundwater management
conjunctive use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,352
2,852
0.533
* Total Citation Counts Rankings
Ranking Based On Selection :6
Sri Lanka
Simon Parkinson
climate risk
sustainable development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,654
3,892
0.836
* Total Citation Counts Rankings
Ranking Based On Selection :7
Sri Lanka
Javier Mateo-Sagasta
water quality
water pollution
water reuse
river basins
water resources management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,869
3,188
0.824
* Total Citation Counts Rankings
Ranking Based On Selection :8
Sri Lanka
Philip Amoah
Resource Recovery Reuse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,496
727
0.291
* Total Citation Counts Rankings
Ranking Based On Selection :9
Sri Lanka
Amgad Elmahdi
Integrated Water and natural resources assessment and managment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,272
1,273
0.560
* Total Citation Counts Rankings
Ranking Based On Selection :10
Sri Lanka
Alan Nicol
Water
environment
climate
growth
development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,172
1,067
0.491
* Total Citation Counts Rankings
Ranking Based On Selection :11
Sri Lanka
Jonathan Lautze
Water Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,086
1,104
0.529
* Total Citation Counts Rankings
Ranking Based On Selection :12
Sri Lanka
Shilp Verma
Water-Energy-Food Policies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,460
718
0.492
* Total Citation Counts Rankings
Ranking Based On Selection :13
Sri Lanka
Usman Khalid Awan
International Water Resources Management Specialist
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,453
933
0.642
* Total Citation Counts Rankings
Ranking Based On Selection :14
Sri Lanka
Sanjiv De Silva
Natural Resources Governance
irrigation management
wetlands management
inclusive growth
weather index insurance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,137
553
0.486
* Total Citation Counts Rankings
Ranking Based On Selection :15
Sri Lanka
M Aheeyar
Research in water resources management
Agrarian development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612
402
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :16
Sri Lanka
Gitta Shrestha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
568
472
0.831
* Total Citation Counts Rankings
Ranking Based On Selection :17
Sri Lanka
Karthikeyan Matheswaran
Water productivity
irrigation performance assessment
hydrological modelling
collaborative tool development approaches
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
232
0.885
* Total Citation Counts Rankings
Ranking Based On Selection :18
Sri Lanka
Mohammad Faiz Alam
Water resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254
253
0.996
* Total Citation Counts Rankings
Ranking Based On Selection :19
Sri Lanka
Muhammad Azeem Ali Shah
Water Governance
Transboundary water management
Flow Monitoring
Solar based irrigation systems
Natural Resource Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
180
0.759
* Total Citation Counts Rankings
Ranking Based On Selection :20
Sri Lanka
Ameer Mohamed Rajah
GIS
Remote Sensing
Water Resources
Agriculture
Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
101
0.620
* Total Citation Counts Rankings
Ranking Based On Selection :21
Sri Lanka
Dhyey Bhatpuria
Earth Observation
Remote Sensing
Water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159
144
0.906
* Total Citation Counts Rankings
Ranking Based On Selection :22
Sri Lanka
Avinandan Taron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
124
0.849
* Total Citation Counts Rankings
Ranking Based On Selection :23
Sri Lanka
Shweta Panjwani
Data Analyst
Web Development
GEE
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92
91
0.989
* Total Citation Counts Rankings
Rankings
46,773
Sri Lanka
17
2
Ranking Based On Selection: 1
Stefan Uhlenbrook
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,072
8,484
0.469
hydrology and water resources
climate change
ecosystems
food systems
sustainability
* Total Citation Counts Rankings
Rankings
70,805
Sri Lanka
21
4
Ranking Based On Selection: 2
Mohammad Mohsin Hafeez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,218
11,191
0.847
Water Resources Management
* Total Citation Counts Rankings
Rankings
127,234
Sri Lanka
43
8
Ranking Based On Selection: 3
Simon Langan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,005
4,370
0.546
water quality
soils
river basin management
irrigation
water futures and scenarios
* Total Citation Counts Rankings
Rankings
142,594
Sri Lanka
47
10
Ranking Based On Selection: 4
Matthew Mccartney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,208
3,427
0.475
water resources management
wetlands
livelihoods
* Total Citation Counts Rankings
Rankings
192,758
Sri Lanka
80
15
Ranking Based On Selection: 5
Paul Pavelic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,352
2,852
0.533
groundwater management
conjunctive use
* Total Citation Counts Rankings
Rankings
220,623
Sri Lanka
93
16
Ranking Based On Selection: 6
Simon Parkinson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,654
3,892
0.836
climate risk
sustainable development
* Total Citation Counts Rankings
Rankings
261,296
Sri Lanka
113
18
Ranking Based On Selection: 7
Javier Mateo-Sagasta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,869
3,188
0.824
water quality
water pollution
water reuse
river basins
water resources management
* Total Citation Counts Rankings
Rankings
375,856
Sri Lanka
188
25
Ranking Based On Selection: 8
Philip Amoah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,496
727
0.291
Resource Recovery Reuse
* Total Citation Counts Rankings
Rankings
403,425
Sri Lanka
212
26
Ranking Based On Selection: 9
Amgad Elmahdi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,272
1,273
0.560
Integrated Water and natural resources assessment and managment
* Total Citation Counts Rankings
Rankings
416,993
Sri Lanka
228
28
Ranking Based On Selection: 10
Alan Nicol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,172
1,067
0.491
Water
environment
climate
growth
development
* Total Citation Counts Rankings
Rankings
429,648
Sri Lanka
231
29
Ranking Based On Selection: 11
Jonathan Lautze
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,086
1,104
0.529
* Total Citation Counts Rankings
Rankings
547,304
Sri Lanka
341
33
Ranking Based On Selection: 12
Shilp Verma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,460
718
0.492
Water-Energy-Food Policies
* Total Citation Counts Rankings
Rankings
548,905
Sri Lanka
343
34
Ranking Based On Selection: 13
Usman Khalid Awan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,453
933
0.642
International Water Resources Management Specialist
* Total Citation Counts Rankings
Rankings
635,484
Sri Lanka
437
38
Ranking Based On Selection: 14
Sanjiv De Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,137
553
0.486
Natural Resources Governance
irrigation management
wetlands management
inclusive growth
weather index insurance
* Total Citation Counts Rankings
Rankings
851,948
Sri Lanka
751
49
Ranking Based On Selection: 15
M Aheeyar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
612
402
0.657
Research in water resources management
Agrarian development
* Total Citation Counts Rankings
Rankings
875,432
Sri Lanka
784
50
Ranking Based On Selection: 16
Gitta Shrestha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
568
472
0.831
* Total Citation Counts Rankings
Rankings
1,176,823
Sri Lanka
1,343
53
Ranking Based On Selection: 17
Karthikeyan Matheswaran
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
262
232
0.885
Water productivity
irrigation performance assessment
hydrological modelling
collaborative tool development approaches
* Total Citation Counts Rankings
Rankings
1,189,109
Sri Lanka
1,374
54
Ranking Based On Selection: 18
Mohammad Faiz Alam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
254
253
0.996
* Total Citation Counts Rankings
Rankings
1,218,880
Sri Lanka
1,458
57
Ranking Based On Selection: 19
Muhammad Azeem Ali Shah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
237
180
0.759
Water Governance
Transboundary water management
Flow Monitoring
Solar based irrigation systems
Natural Resource Management
* Total Citation Counts Rankings
Rankings
1,376,561
Sri Lanka
1,939
60
Ranking Based On Selection: 20
Ameer Mohamed Rajah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
163
101
0.620
GIS
Remote Sensing
Water Resources
Agriculture
Environment
* Total Citation Counts Rankings
Rankings
1,386,153
Sri Lanka
1,973
61
Ranking Based On Selection: 21
Dhyey Bhatpuria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
159
144
0.906
Earth Observation
Remote Sensing
Water
* Total Citation Counts Rankings
Rankings
1,422,657
Sri Lanka
2,090
63
Ranking Based On Selection: 22
Avinandan Taron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
146
124
0.849
* Total Citation Counts Rankings
Rankings
1,608,641
Sri Lanka
2,749
65
Ranking Based On Selection: 23
Shweta Panjwani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
92
91
0.989
Data Analyst
Web Development
GEE