i10 Productivity
Rankings

Finnish Environment Institute SYKE Scientists i10 Productivity Rankings 2025

Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings"

* Total i10 IndexRankings
Ranking Based On Selection :1
Finland
Timothy R. Carter
Climate
Environment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
139
77
0.554
* Total i10 IndexRankings
Ranking Based On Selection :2
Finland
Risto K. Heikkinen
Conservation biology
Climate change
Biodiversity
Species distribution modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
88
0.779
* Total i10 IndexRankings
Ranking Based On Selection :3
Finland
Mikko Kuussaari
Conservation biology
butterfly ecology
agroecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
85
0.810
* Total i10 IndexRankings
Ranking Based On Selection :4
Finland
Martin Forsius
biogeochemistry
climate change
air pollution
lakes
catchments
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
48
0.457
* Total i10 IndexRankings
Ranking Based On Selection :5
Finland
Harri Kuosa
Marine ecology
Baltic Sea
Eutrophication
Microbes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
45
0.437
* Total i10 IndexRankings
Ranking Based On Selection :6
Finland
Pirkko Kortelainen
Biogeochemical cycles
climate change
land use
atmospheric deposition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
72
0.713
* Total i10 IndexRankings
Ranking Based On Selection :7
Finland
Juha Grönroos
Agri-environmental issues
Life cycle assessment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
54
0.563
* Total i10 IndexRankings
Ranking Based On Selection :8
Finland
Mikael Hildén
Policy analysis and evaluation
natural resource management
programme assessment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
51
0.531
* Total i10 IndexRankings
Ranking Based On Selection :9
Finland
Seppo Hellsten
aquatic macrophytes
monitoring
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
43
0.473
* Total i10 IndexRankings
Ranking Based On Selection :10
Finland
Anke Kremp
Phytoplankton Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
64
0.800
* Total i10 IndexRankings
Ranking Based On Selection :11
Finland
Matti Verta
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
19
0.244
* Total i10 IndexRankings
Ranking Based On Selection :12
Finland
Jari Lyytimäki
Environmental studies
social science
science communication
sustainability indicators
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
58
0.753
* Total i10 IndexRankings
Ranking Based On Selection :13
Finland
Jyri Seppälä
Climate change
environmental impact assessment
resource efficiency
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
* Total i10 IndexRankings
Ranking Based On Selection :14
Finland
Raimo Virkkala
Biodiversity conservation
Bird ecology
Boreal
Climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
54
0.711
* Total i10 IndexRankings
Ranking Based On Selection :15
Finland
Markku Viitasalo
Biodiversity
Baltic Sea
Pelagic and benthic ecology
Marine spatial planning
Conservation ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
50
0.685
* Total i10 IndexRankings
Ranking Based On Selection :16
Finland
Anna-Stiina Heiskanen
Ecosystem based management and assessment of aquatic ecosystems
Marine and Water Policies
aquatic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
46
0.657
* Total i10 IndexRankings
Ranking Based On Selection :17
Finland
Jaakko Mannio
contaminants
emerging pollutants
aquatic environment
regional limnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
25
0.362
* Total i10 IndexRankings
Ranking Based On Selection :18
Finland
Kari K. Lehtonen
marine biology
ecotoxicology
ecophysiology
biological effects
hazardous substances
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
53
0.791
* Total i10 IndexRankings
Ranking Based On Selection :19
Finland
Katri Rankinen
nutrient load
modelling
catchment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
35
0.530
* Total i10 IndexRankings
Ranking Based On Selection :20
Finland
Ahti Lepistö
Catchment modelling
biogeochemical cycles
nitrogen
carbon
hydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
31
0.470
* Total i10 IndexRankings
Ranking Based On Selection :21
Finland
Timo Tamminen
planktonic nutrient cycles
food webs
diversity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
33
0.516
* Total i10 IndexRankings
Ranking Based On Selection :22
Finland
Riikka Paloniemi
environmental policy
environmental psychology
participation
learning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
54
0.857
* Total i10 IndexRankings
Ranking Based On Selection :23
Finland
Juha Pöyry
biodiversity conservation
climate change
insect ecology
habitat loss
Lepidoptera
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
53
0.855
* Total i10 IndexRankings
Ranking Based On Selection :24
Finland
Jukka Aroviita
aquatic ecology
freshwater ecology
environmental assessment
bioassessment
predictive models
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
45
0.750
* Total i10 IndexRankings
Ranking Based On Selection :25
Finland
Petri Ekholm
nutrients
eutrophication
agriculture
biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
35
0.593
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Timothy R. Carter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
139
77
0.554
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Risto K. Heikkinen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
113
88
0.779
Conservation biology
Climate change
Biodiversity
Species distribution modelling
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 3
Mikko Kuussaari
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
85
0.810
Conservation biology
butterfly ecology
agroecology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 4
Martin Forsius
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
48
0.457
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Harri Kuosa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
45
0.437
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 6
Pirkko Kortelainen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
72
0.713
Biogeochemical cycles
climate change
land use
atmospheric deposition
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Juha Grönroos
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
54
0.563
Agri-environmental issues
Life cycle assessment
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Mikael Hildén
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
51
0.531
Policy analysis and evaluation
natural resource management
programme assessment
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Seppo Hellsten
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
43
0.473
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 10
Anke Kremp
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
64
0.800
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 11
Matti Verta
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
19
0.244
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 12
Jari Lyytimäki
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
58
0.753
Environmental studies
social science
science communication
sustainability indicators
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 13
Jyri Seppälä
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
Climate change
environmental impact assessment
resource efficiency
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 14
Raimo Virkkala
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
54
0.711
Biodiversity conservation
Bird ecology
Boreal
Climate change
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 15
Markku Viitasalo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
50
0.685
Biodiversity
Baltic Sea
Pelagic and benthic ecology
Marine spatial planning
Conservation ecology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 16
Anna-Stiina Heiskanen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
46
0.657
Ecosystem based management and assessment of aquatic ecosystems
Marine and Water Policies
aquatic
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 17
Jaakko Mannio
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
25
0.362
contaminants
emerging pollutants
aquatic environment
regional limnology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 18
Kari K. Lehtonen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
53
0.791
marine biology
ecotoxicology
ecophysiology
biological effects
hazardous substances
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 19
Katri Rankinen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
35
0.530
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 20
Ahti Lepistö
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
66
31
0.470
Catchment modelling
biogeochemical cycles
nitrogen
carbon
hydrology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 21
Timo Tamminen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
33
0.516
planktonic nutrient cycles
food webs
diversity
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 22
Riikka Paloniemi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
54
0.857
environmental policy
environmental psychology
participation
learning
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 23
Juha Pöyry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
53
0.855
biodiversity conservation
climate change
insect ecology
habitat loss
Lepidoptera
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 24
Jukka Aroviita
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
45
0.750
aquatic ecology
freshwater ecology
environmental assessment
bioassessment
predictive models
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 25
Petri Ekholm
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
35
0.593