The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 30, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Metrics
H-Index
i10 Index
Citation Counts
94
179
42,106
* Total H IndexRankings
Ranking Based On Selection: 2
Physics
Complexity
Environment
Sustainability
Metrics
H-Index
i10 Index
Citation Counts
93
250
79,242
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
89
181
38,333
* Total H IndexRankings
Ranking Based On Selection: 4
Climate Economics
Integrated Assessment
Decision Analysis
Metrics
H-Index
i10 Index
Citation Counts
88
160
50,915
* Total H IndexRankings
Ranking Based On Selection: 5
Metrics
H-Index
i10 Index
Citation Counts
88
259
50,232
* Total H IndexRankings
Ranking Based On Selection: 6
ocean circulation
sea level
climate change
paleoclimate
extreme events
Metrics
H-Index
i10 Index
Citation Counts
86
160
49,594
* Total H IndexRankings
Ranking Based On Selection: 7
Earth System Analysis
Metrics
H-Index
i10 Index
Citation Counts
76
144
44,453
* Total H IndexRankings
Ranking Based On Selection: 8
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
Metrics
H-Index
i10 Index
Citation Counts
72
135
53,278
* Total H IndexRankings
Ranking Based On Selection: 9
Metrics
H-Index
i10 Index
Citation Counts
65
139
25,967
* Total H IndexRankings
Ranking Based On Selection: 10
Climate dynamics
Adaptation strategies
Metrics
H-Index
i10 Index
Citation Counts
63
148
22,644
* Total H IndexRankings
Ranking Based On Selection: 11
Climate
Physics
Economics
Metrics
H-Index
i10 Index
Citation Counts
63
148
22,659
* Total H IndexRankings
Ranking Based On Selection: 12
Earth system analysis
complex socio-ecological systems
climate and social tipping dynamics
complex networks
nonlinear data a
Metrics
H-Index
i10 Index
Citation Counts
61
124
19,637
* Total H IndexRankings
Ranking Based On Selection: 13
Nitrogen
Agriculture
Climate Change
Food
Metrics
H-Index
i10 Index
Citation Counts
60
90
19,326
* Total H IndexRankings
Ranking Based On Selection: 14
Energy Markets
Climate Change Mitigation
Model Coupling
Land-Use
Resource Rents
Metrics
H-Index
i10 Index
Citation Counts
59
117
17,519
* Total H IndexRankings
Ranking Based On Selection: 15
climatology
Metrics
H-Index
i10 Index
Citation Counts
57
104
17,436
* Total H IndexRankings
Ranking Based On Selection: 16
Metrics
H-Index
i10 Index
Citation Counts
56
102
21,899
* Total H IndexRankings
Ranking Based On Selection: 17
Extreme Weather
Atmospheric Circulation
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
54
93
19,461
* Total H IndexRankings
Ranking Based On Selection: 18
Metrics
H-Index
i10 Index
Citation Counts
54
92
23,359
* Total H IndexRankings
Ranking Based On Selection: 19
Metrics
H-Index
i10 Index
Citation Counts
52
119
11,280
* Total H IndexRankings
Ranking Based On Selection: 20
land-use modelling
land-based mitigation
bioenergy
afforestation
integrated assessment modelling
Metrics
H-Index
i10 Index
Citation Counts
51
78
18,906
* Total H IndexRankings
Ranking Based On Selection: 21
ecology
DGVM
permafrost
agriculture
Metrics
H-Index
i10 Index
Citation Counts
51
73
14,575
* Total H IndexRankings
Ranking Based On Selection: 22
Adaptation
Climate Change
Ecology
Forestry
Global Change
Metrics
H-Index
i10 Index
Citation Counts
45
82
11,391
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
45
60
33,606
* Total H IndexRankings
Ranking Based On Selection: 24
Climate System Analysis - Greenland and Antarctic Ice Dynamics - Sea-Level Rise - Tipping Elements in the Earth System
Metrics
H-Index
i10 Index
Citation Counts
44
77
13,232
* Total H IndexRankings
Ranking Based On Selection: 25
Climate Change
Climate Impacts
Water Resources
Human Migration
Human Displacement
Metrics
H-Index
i10 Index
Citation Counts
41
57
14,211
Alexander Popp
Metrics
H-Index
i10-Index
Citation Counts
94
179
42,106
Hans Joachim Schellnhuber
Metrics
H-Index
i10-Index
Citation Counts
93
250
79,242
Physics
Complexity
Environment
Sustainability
Christoph Müller
Metrics
H-Index
i10-Index
Citation Counts
89
181
38,333
Elmar Kriegler
Metrics
H-Index
i10-Index
Citation Counts
88
160
50,915
Climate Economics
Integrated Assessment
Decision Analysis
Ottmar Edenhofer
Metrics
H-Index
i10-Index
Citation Counts
88
259
50,232
Stefan Rahmstorf
Metrics
H-Index
i10-Index
Citation Counts
86
160
49,594
ocean circulation
sea level
climate change
paleoclimate
extreme events
Wolfgang Lucht
Metrics
H-Index
i10-Index
Citation Counts
76
144
44,453
Jan C Minx
Metrics
H-Index
i10-Index
Citation Counts
72
135
53,278
climate change mitigation
carbon dioxide removal
evidence synthesis
data science for evidence synthesis
Hermann Lotze-Campen
Metrics
H-Index
i10-Index
Citation Counts
65
139
25,967
Anders Levermann
Metrics
H-Index
i10-Index
Citation Counts
63
148
22,644
Anders Levermann.
Metrics
H-Index
i10-Index
Citation Counts
63
148
22,659
Jonathan F. Donges
Metrics
H-Index
i10-Index
Citation Counts
61
124
19,637
Earth system analysis
complex socio-ecological systems
climate and social tipping dynamics
complex networks
nonlinear data a
Benjamin Leon Bodirsky
Metrics
H-Index
i10-Index
Citation Counts
60
90
19,326
Nitrogen
Agriculture
Climate Change
Food
Nico Bauer
Metrics
H-Index
i10-Index
Citation Counts
59
117
17,519
Energy Markets
Climate Change Mitigation
Model Coupling
Land-Use
Resource Rents
Andrey Ganopolski
Metrics
H-Index
i10-Index
Citation Counts
57
104
17,436
Kirsten Thonicke
Metrics
H-Index
i10-Index
Citation Counts
56
102
21,899
Dim Coumou
Metrics
H-Index
i10-Index
Citation Counts
54
93
19,461
Extreme Weather
Atmospheric Circulation
Climate Change
Katja Frieler
Metrics
H-Index
i10-Index
Citation Counts
54
92
23,359
Juergen Peter Kropp
Metrics
H-Index
i10-Index
Citation Counts
52
119
11,280
Florian Humpenöder
Metrics
H-Index
i10-Index
Citation Counts
51
78
18,906
land-use modelling
land-based mitigation
bioenergy
afforestation
integrated assessment modelling
Sibyll Schaphoff
Metrics
H-Index
i10-Index
Citation Counts
51
73
14,575
ecology
DGVM
permafrost
agriculture
Christopher Reyer
Metrics
H-Index
i10-Index
Citation Counts
45
82
11,391
Adaptation
Climate Change
Ecology
Forestry
Global Change
Jens Heinke
Metrics
H-Index
i10-Index
Citation Counts
45
60
33,606
Ricarda Winkelmann
Metrics
H-Index
i10-Index
Citation Counts
44
77
13,232
Climate System Analysis - Greenland and Antarctic Ice Dynamics - Sea-Level Rise - Tipping Elements in the Earth System
Jacob Schewe
Metrics
H-Index
i10-Index
Citation Counts
41
57
14,211
Climate Change
Climate Impacts
Water Resources
Human Migration
Human Displacement