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 :1
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 :2
marine
chemistry
biogeochemistry
sediment
cycling of elements
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
571
0.414
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Bio-optics
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,159
503
0.434
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
hydrology
geophysics
climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
196
0.585
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
hydrogeology
groundwater
water supply
wells
gravel extraction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
380
149
0.392
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
Kaarina Lukkari
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,380
571
0.414
marine
chemistry
biogeochemistry
sediment
cycling of elements
Pasi Ylöstalo
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,159
503
0.434
Juho Jakkila
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
335
196
0.585
hydrology
geophysics
climate
Ritva Britschgi
Finnish Environment Institute SYKE
Bhubaneswar, Finland
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
380
149
0.392
hydrogeology
groundwater
water supply
wells
gravel extraction