Citation Rankings
Highly Cited Researchers
Finnish Environment Institute SYKE Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :51
remote sensing
water quality
automatic stations
lakes
coastal waters
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,000
1,278
0.320
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :52
mire hydrology
water quality
peatlands
restoration
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,203
1,248
0.390
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :53
bioassessment
diatoms
treatment wetlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,166
1,227
0.566
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :54
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,099
1,224
0.395
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :55
environmental policy
circular economy
business and politics
policy evaluation
regulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,926
1,195
0.620
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :56
conservation biology
plant ecology
lichens
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,836
1,190
0.310
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :57
sustainable transitions
just transition
environmental governance
sustainable food systems
practices
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
1,189
0.668
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :58
Constructed wetlands
Mitigation measures
Diffuse pollution
Watershed modeling
Monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,764
1,175
0.425
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :59
Environmental Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,317
1,160
0.501
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :60
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,190
1,024
0.861
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :61
phytoplankton
Baltic Sea
fluorescence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,536
1,010
0.398
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :62
Aquatic ecology
Biodiversity
Biological monitoring
Diatoms
Spatial patterns
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,129
1,008
0.893
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :63
Water quality
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,002
996
0.332
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :64
nutrients
eutrophication
agriculture
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,887
977
0.251
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :65
Marine microbial ecology
contaminants
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,645
964
0.264
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :66
contaminants
emerging pollutants
aquatic environment
regional limnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,910
963
0.196
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :67
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,872
951
0.331
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :68
Marine Biology
Benthic Ecology
Environmental monitoring
Biodiversity assessments
Arctic Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,464
933
0.637
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :69
environmental policy
science and technology studies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,505
863
0.573
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :70
Meriekologia
Itämeren tila
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,914
850
0.217
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :71
gis
remote sensing
green infrastructure
ecosystem services
urban form
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
927
848
0.915
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :72
air pollution
emission mitigation
scenarios
fine particles
black carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,614
846
0.524
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :73
biodiversity
ecology
evolutionary ecology
monitoring
birds
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,344
815
0.606
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :74
limnology
ecotoxicology
environmental risk assessment
river basin management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,500
807
0.323
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :75
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,529
793
0.175
* Last 6 Years Citation Counts Rankings
Rankings
378,688
2,387
51
Ranking Based On Selection: 51
Kari Yo Kallio
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,000
1,278
0.320
remote sensing
water quality
automatic stations
lakes
coastal waters
* Last 6 Years Citation Counts Rankings
Rankings
386,228
2,440
52
Ranking Based On Selection: 52
Tapani Sallantaus
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,203
1,248
0.390
mire hydrology
water quality
peatlands
restoration
biogeochemistry
* Last 6 Years Citation Counts Rankings
Rankings
391,789
2,471
53
Ranking Based On Selection: 53
Satu Maaria Karjalainen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,166
1,227
0.566
* Last 6 Years Citation Counts Rankings
Rankings
392,566
2,474
54
Ranking Based On Selection: 54
Tuija Mattsson
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,099
1,224
0.395
* Last 6 Years Citation Counts Rankings
Rankings
400,354
2,529
55
Ranking Based On Selection: 55
Petrus Kautto
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,926
1,195
0.620
environmental policy
circular economy
business and politics
policy evaluation
regulation
* Last 6 Years Citation Counts Rankings
Rankings
401,629
2,536
56
Ranking Based On Selection: 56
Juha Pykälä
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,836
1,190
0.310
conservation biology
plant ecology
lichens
* Last 6 Years Citation Counts Rankings
Rankings
402,053
2,540
57
Ranking Based On Selection: 57
Minna Kaljonen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,780
1,189
0.668
sustainable transitions
just transition
environmental governance
sustainable food systems
practices
* Last 6 Years Citation Counts Rankings
Rankings
405,957
2,565
58
Ranking Based On Selection: 58
Jari Koskiaho
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,764
1,175
0.425
Constructed wetlands
Mitigation measures
Diffuse pollution
Watershed modeling
Monitoring
* Last 6 Years Citation Counts Rankings
Rankings
410,148
2,596
59
Ranking Based On Selection: 59
Sampo Soimakallio
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,317
1,160
0.501
Environmental Sciences
* Last 6 Years Citation Counts Rankings
Rankings
452,155
2,860
60
Ranking Based On Selection: 60
Niina Kotamäki
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,190
1,024
0.861
* Last 6 Years Citation Counts Rankings
Rankings
456,654
2,892
61
Ranking Based On Selection: 61
Jukka Seppälä
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,536
1,010
0.398
* Last 6 Years Citation Counts Rankings
Rankings
457,582
2,900
62
Ranking Based On Selection: 62
Annika Vilmi
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,129
1,008
0.893
Aquatic ecology
Biodiversity
Biological monitoring
Diatoms
Spatial patterns
* Last 6 Years Citation Counts Rankings
Rankings
461,497
2,916
63
Ranking Based On Selection: 63
Sampsa Koponen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,002
996
0.332
* Last 6 Years Citation Counts Rankings
Rankings
468,086
2,957
64
Ranking Based On Selection: 64
Petri Ekholm
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,887
977
0.251
nutrients
eutrophication
agriculture
biogeochemistry
* Last 6 Years Citation Counts Rankings
Rankings
472,727
2,997
65
Ranking Based On Selection: 65
Kirsten Jørgensen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,645
964
0.264
Marine microbial ecology
contaminants
* Last 6 Years Citation Counts Rankings
Rankings
473,078
3,000
66
Ranking Based On Selection: 66
Jaakko Mannio
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,910
963
0.196
contaminants
emerging pollutants
aquatic environment
regional limnology
* Last 6 Years Citation Counts Rankings
Rankings
477,474
3,028
67
Ranking Based On Selection: 67
Pekka Vanhala
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,872
951
0.331
* Last 6 Years Citation Counts Rankings
Rankings
484,229
3,075
68
Ranking Based On Selection: 68
Henrik Nygård
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,464
933
0.637
Marine Biology
Benthic Ecology
Environmental monitoring
Biodiversity assessments
Arctic Ecology
* Last 6 Years Citation Counts Rankings
Rankings
511,859
3,239
69
Ranking Based On Selection: 69
Taru Peltola
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,505
863
0.573
environmental policy
science and technology studies
* Last 6 Years Citation Counts Rankings
Rankings
517,017
3,270
70
Ranking Based On Selection: 70
Heikki Pitkänen
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,914
850
0.217
* Last 6 Years Citation Counts Rankings
Rankings
518,177
3,281
71
Ranking Based On Selection: 71
Arto Viinikka
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
927
848
0.915
gis
remote sensing
green infrastructure
ecosystem services
urban form
* Last 6 Years Citation Counts Rankings
Rankings
518,774
3,288
72
Ranking Based On Selection: 72
Niko Karvosenoja
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,614
846
0.524
air pollution
emission mitigation
scenarios
fine particles
black carbon
* Last 6 Years Citation Counts Rankings
Rankings
532,348
3,368
73
Ranking Based On Selection: 73
Päivi Sirkiä
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,344
815
0.606
biodiversity
ecology
evolutionary ecology
monitoring
birds
* Last 6 Years Citation Counts Rankings
Rankings
535,713
3,390
74
Ranking Based On Selection: 74
Kari-Matti Vuori
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,500
807
0.323
limnology
ecotoxicology
environmental risk assessment
river basin management
* Last 6 Years Citation Counts Rankings
Rankings
541,845
3,424
75
Ranking Based On Selection: 75
Matti Verta
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,529
793
0.175