Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as 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
Climate Change and Environment
Remote Sensing
Atmospheric Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
378
286
0.757
* Total i10 IndexRankings
Ranking Based On Selection :2
Biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
246
201
0.817
* Total i10 IndexRankings
Ranking Based On Selection :3
eutrophication
nitrogen cycling
algal blooms
harmful algae
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
217
165
0.760
* Total i10 IndexRankings
Ranking Based On Selection :4
Atmospheric Chemistry and Composition
Ozone Layer
Air Pollution
Climate Change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
196
91
0.464
* Total i10 IndexRankings
Ranking Based On Selection :5
Molecular Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
181
100
0.552
* Total i10 IndexRankings
Ranking Based On Selection :6
Benthic ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
157
124
0.790
* Total i10 IndexRankings
Ranking Based On Selection :7
Interdisciplinary Science
Land Cover/Use Change
Climate Change
Conservation Biology
Landscape Dynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
115
0.793
* Total i10 IndexRankings
Ranking Based On Selection :8
Marine biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
101
0.748
* Total i10 IndexRankings
Ranking Based On Selection :9
Marine Microbial Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
102
0.872
* Total i10 IndexRankings
Ranking Based On Selection :10
Regional sciences and regional economics
Climate change mitigation and adaptation
Integrated modelling and applied systems ana
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
82
0.752
* Total i10 IndexRankings
Ranking Based On Selection :11
Biological oceanography
zooplankton ecology
hypoxia effects on pelagic food webs
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
61
0.592
* Total i10 IndexRankings
Ranking Based On Selection :12
oceanography
biogeochemistry
sediment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
69
0.758
* Total i10 IndexRankings
Ranking Based On Selection :13
Water Resources
Climate Change
Drought
Ecological Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
62
0.729
* Total i10 IndexRankings
Ranking Based On Selection :14
Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
46
0.568
* Total i10 IndexRankings
Ranking Based On Selection :15
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
35
0.432
* Total i10 IndexRankings
Ranking Based On Selection :16
Climate Change and Health
Air Pollution
Cardiopulmonary Diseases
Renal disease
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
72
0.911
* Total i10 IndexRankings
Ranking Based On Selection :17
Environmental Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
61
0.772
* Total i10 IndexRankings
Ranking Based On Selection :18
Marine and freshwater biogeochemistry
Environmental Engineering
Environmental Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
76
0.974
* Total i10 IndexRankings
Ranking Based On Selection :19
biogeochemistry
watershed hydrology
watershed ecology
estuarine ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
* Total i10 IndexRankings
Ranking Based On Selection :20
species distribution modelling
global change
biodiversity
macroecology
biogeography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
65
0.903
* Total i10 IndexRankings
Ranking Based On Selection :21
environmental engineering
environmental chemistry
contaminants of emerging concern
ion exchange
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
62
0.969
* Total i10 IndexRankings
Ranking Based On Selection :22
climate change
methane
ecology
wetlands
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
57
0.966
* Total i10 IndexRankings
Ranking Based On Selection :23
Wildlife Ecology
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
27
0.458
* Total i10 IndexRankings
Ranking Based On Selection :24
land-use change
climate change
land cover change
forest
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
54
0.931
* Total i10 IndexRankings
Ranking Based On Selection :25
paleoecology
stable isotope ecology
biogeochemistry
global change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
43
0.768
Zhanqing Li
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
378
286
0.757
Climate Change and Environment
Remote Sensing
Atmospheric Physics
Eric A Davidson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
246
201
0.817
Patricia Glibert
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
217
165
0.760
eutrophication
nitrogen cycling
algal blooms
harmful algae
Ross Salawitch
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
196
91
0.464
Atmospheric Chemistry and Composition
Ozone Layer
Air Pollution
Climate Change
Allen R Place
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
181
100
0.552
Jacqueline M Grebmeier
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
157
124
0.790
Mark A Cochrane
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
115
0.793
Interdisciplinary Science
Land Cover/Use Change
Climate Change
Conservation Biology
Landscape Dynamics
Lee W Cooper
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
101
0.748
Marine biogeochemistry
Feng Chen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
117
102
0.872
Marine Microbial Ecology
Laixiang Sun
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
82
0.752
Regional sciences and regional economics
Climate change mitigation and adaptation
Integrated modelling and applied systems ana
Michael Roman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
103
61
0.592
Biological oceanography
zooplankton ecology
hypoxia effects on pelagic food webs
Jeffrey Cornwell
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
69
0.758
oceanography
biogeochemistry
sediment
Puneet Srivastava
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
62
0.729
Water Resources
Climate Change
Drought
Ecological Engineering
Alba Torrents
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
46
0.568
Environmental Engineering
Victor S Kennedy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
35
0.432
Amir Sapkota
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
72
0.911
Climate Change and Health
Air Pollution
Cardiopulmonary Diseases
Renal disease
Upal Ghosh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
79
61
0.772
Environmental Engineering
Michael Gonsior
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
76
0.974
Marine and freshwater biogeochemistry
Environmental Engineering
Environmental Chemistry
Thomas R Fisher
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
42
0.545
biogeochemistry
watershed hydrology
watershed ecology
estuarine ecology
Matthew C Fitzpatrick
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
65
0.903
species distribution modelling
global change
biodiversity
macroecology
biogeography
Lee Blaney
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
62
0.969
environmental engineering
environmental chemistry
contaminants of emerging concern
ion exchange
Zhen Zhang
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
57
0.966
climate change
methane
ecology
wetlands
J Edward Gates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
27
0.458
Wildlife Ecology
Conservation Biology
Louise Chini
University of Maryland
College Park, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
54
0.931
land-use change
climate change
land cover change
forest
David M Nelson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
43
0.768
paleoecology
stable isotope ecology
biogeochemistry
global change