World Scientist and University Rankings 2025
France Engineering & Technology 202 Scientists Subject Rankings - 2025
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 31, 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
climate
climate change
Earth system modelling
aerosols
aerosol-radiation interactions
Metrics
H-Index
i10 Index
Citation Counts
118
362
65,239
* Total H IndexRankings
Ranking Based On Selection: 2
Regional climate
Climate Change
Extreme Events
Energy
Air pollution
Metrics
H-Index
i10 Index
Citation Counts
99
268
44,096
* Total H IndexRankings
Ranking Based On Selection: 3
oceanography
biogeochemistry
climate change
ocean solutions
Metrics
H-Index
i10 Index
Citation Counts
98
258
43,473
* Total H IndexRankings
Ranking Based On Selection: 4
Environment & Plastic
Metrics
H-Index
i10 Index
Citation Counts
85
260
29,395
* Total H IndexRankings
Ranking Based On Selection: 5
Environmental Engineering
water treatments
air treatments
adsorption
VOC
Metrics
H-Index
i10 Index
Citation Counts
71
239
18,876
* Total H IndexRankings
Ranking Based On Selection: 6
Water Chemistry and Treatment
Metrics
H-Index
i10 Index
Citation Counts
69
183
18,929
* Total H IndexRankings
Ranking Based On Selection: 7
Air Quality
Climate
Metrics
H-Index
i10 Index
Citation Counts
59
132
10,792
* Total H IndexRankings
Ranking Based On Selection: 8
Land surface modeling
Hydrology
Climate change impacts
Remote sensing
Metrics
H-Index
i10 Index
Citation Counts
57
97
11,219
* Total H IndexRankings
Ranking Based On Selection: 9
environmental sciences
Metrics
H-Index
i10 Index
Citation Counts
54
115
17,404
* Total H IndexRankings
Ranking Based On Selection: 10
Bioprocess engineering
Metrics
H-Index
i10 Index
Citation Counts
51
105
7,121
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* Total H IndexRankings
Ranking Based On Selection: 11
grassland
livestock
agroecology
ecosystem services
climate change
Metrics
H-Index
i10 Index
Citation Counts
51
177
10,225
* Total H IndexRankings
Ranking Based On Selection: 12
biotechnology
microbiology
wastewater treatment
environmental engineering
pollution prevention and resource recovery
Metrics
H-Index
i10 Index
Citation Counts
51
110
9,276
* Total H IndexRankings
Ranking Based On Selection: 13
Air Quality
Metrics
H-Index
i10 Index
Citation Counts
50
100
13,320
* Total H IndexRankings
Ranking Based On Selection: 14
Environmental virology - Phages - Enteric viruses - Inactivation - Behavior - Adhesion/agregation - surface properties
Metrics
H-Index
i10 Index
Citation Counts
47
90
6,814
* Total H IndexRankings
Ranking Based On Selection: 15
hydrology
remote sensing
water resources
climate change
snow
Metrics
H-Index
i10 Index
Citation Counts
43
96
6,720
* Total H IndexRankings
Ranking Based On Selection: 16
Climate change
Soil biogeochemistry
Ecology
Carbon cycle
Grassland management
Metrics
H-Index
i10 Index
Citation Counts
43
89
7,433
* Total H IndexRankings
Ranking Based On Selection: 17
biotechnologie
génie des procédés
technologies membranaires
agroalimentaire
Metrics
H-Index
i10 Index
Citation Counts
43
119
6,094
* Total H IndexRankings
Ranking Based On Selection: 18
environnement
Metrics
H-Index
i10 Index
Citation Counts
42
83
5,968
* Total H IndexRankings
Ranking Based On Selection: 19
environnement
sante
Metrics
H-Index
i10 Index
Citation Counts
40
88
6,354
* Total H IndexRankings
Ranking Based On Selection: 20
Climate Change
Climate Services
Extreme Events
Renewable Energy
Africa
Metrics
H-Index
i10 Index
Citation Counts
39
89
9,355
* Total H IndexRankings
Ranking Based On Selection: 21
climate change
peatlands
microbial food web
plant-soil interactions
functional traits
Metrics
H-Index
i10 Index
Citation Counts
38
69
3,960
* Total H IndexRankings
Ranking Based On Selection: 22
Statistical mechanics
climate sciences
extreme events
rare events
energy transition
Metrics
H-Index
i10 Index
Citation Counts
38
84
5,215
* Total H IndexRankings
Ranking Based On Selection: 23
Environnemental engineering
Environmental Chemistry
solid waste
biophysicochemistry
Metrics
H-Index
i10 Index
Citation Counts
38
83
3,903
* Total H IndexRankings
Ranking Based On Selection: 24
Environment
geochemistry
morphometrics
computer vision
machine learning
Metrics
H-Index
i10 Index
Citation Counts
38
74
5,177
* Total H IndexRankings
Ranking Based On Selection: 25
Conservation
Biogeography
Conservation Biology
Ecology
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
37
57
7,405
Olivier Boucher
Metrics
H-Index
i10-Index
Citation Counts
118
362
65,239
climate
climate change
Earth system modelling
aerosols
aerosol-radiation interactions
Robert Vautard
Metrics
H-Index
i10-Index
Citation Counts
99
268
44,096
Regional climate
Climate Change
Extreme Events
Energy
Air pollution
Jean-Pierre Gattuso
Sorbonne Université
Paris, France
Metrics
H-Index
i10-Index
Citation Counts
98
258
43,473
oceanography
biogeochemistry
climate change
ocean solutions
Environment & Plastic
Pierre Le Cloirec
Metrics
H-Index
i10-Index
Citation Counts
71
239
18,876
Environmental Engineering
water treatments
air treatments
adsorption
VOC
Jean Philippe Croue
Université de Poitiers
Poitiers, France
Metrics
H-Index
i10-Index
Citation Counts
69
183
18,929
Water Chemistry and Treatment
Bertrand Bessagnet
Metrics
H-Index
i10-Index
Citation Counts
59
132
10,792
Agnès Ducharne
Sorbonne Université
Paris, France
Metrics
H-Index
i10-Index
Citation Counts
57
97
11,219
Land surface modeling
Hydrology
Climate change impacts
Remote sensing
Gilles Bergametti
Université Paris-Est Créteil
Créteil, France
Metrics
H-Index
i10-Index
Citation Counts
54
115
17,404
environmental sciences
Jeremy Pruvost
Université de Nantes
Nantes, France
Metrics
H-Index
i10-Index
Citation Counts
51
105
7,121
Bioprocess engineering
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Duru M
Metrics
H-Index
i10-Index
Citation Counts
51
177
10,225
grassland
livestock
agroecology
ecosystem services
climate change
HJ Gijzen
Metrics
H-Index
i10-Index
Citation Counts
51
110
9,276
biotechnology
microbiology
wastewater treatment
environmental engineering
pollution prevention and resource recovery
Augustin Colette
Metrics
H-Index
i10-Index
Citation Counts
50
100
13,320
Christophe Gantzer
Université de Lorraine
Nancy, France
Metrics
H-Index
i10-Index
Citation Counts
47
90
6,814
Environmental virology - Phages - Enteric viruses - Inactivation - Behavior - Adhesion/agregation - surface properties
Simon Gascoin
Metrics
H-Index
i10-Index
Citation Counts
43
96
6,720
hydrology
remote sensing
water resources
climate change
snow
Climate change
Soil biogeochemistry
Ecology
Carbon cycle
Grassland management
Dhulster Pascal
Université de Lille
Lille, France
Metrics
H-Index
i10-Index
Citation Counts
43
119
6,094
biotechnologie
génie des procédés
technologies membranaires
agroalimentaire
Andre Pauss
Université de Technologie de Compiegne
Compiègne, France
Metrics
H-Index
i10-Index
Citation Counts
42
83
5,968
Yves Levi
University of Paris-Sud
Orsay, France
Metrics
H-Index
i10-Index
Citation Counts
40
88
6,354
Arona Diedhiou
Metrics
H-Index
i10-Index
Citation Counts
39
89
9,355
Climate Change
Climate Services
Extreme Events
Renewable Energy
Africa
Vincent Jassey
Université de Toulouse III
Toulouse, France
Metrics
H-Index
i10-Index
Citation Counts
38
69
3,960
climate change
peatlands
microbial food web
plant-soil interactions
functional traits
Freddy Bouchet
Metrics
H-Index
i10-Index
Citation Counts
38
84
5,215
Statistical mechanics
climate sciences
extreme events
rare events
energy transition
Rémy Gourdon
Metrics
H-Index
i10-Index
Citation Counts
38
83
3,903
Environnemental engineering
Environmental Chemistry
solid waste
biophysicochemistry
Fabrice Monna
Université de Bourgogne
Dijon, France
Metrics
H-Index
i10-Index
Citation Counts
38
74
5,177
Environment
geochemistry
morphometrics
computer vision
machine learning
Boris Leroy
Metrics
H-Index
i10-Index
Citation Counts
37
57
7,405
Conservation
Biogeography
Conservation Biology
Ecology
Climate Change