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 28, 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 (873.688) 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
land and water management
Irrigation
Climate Change Resilience
sustainable agriculture
food and nutrition security
Metrics
H-Index
i10 Index
Citation Counts
31
51
5,677
* Total H IndexRankings
Ranking Based On Selection: 2
Water Resource Management
Ecosystem
Hydrology
watersheds management
GIS and Remote Sensing
Metrics
H-Index
i10 Index
Citation Counts
16
23
876
* Total H IndexRankings
Ranking Based On Selection: 3
Engineering Materials and Environment
Metrics
H-Index
i10 Index
Citation Counts
16
29
1,103
* Total H IndexRankings
Ranking Based On Selection: 4
Climate change and Adaptation
Gender and Development
Metrics
H-Index
i10 Index
Citation Counts
13
20
1,094
* Total H IndexRankings
Ranking Based On Selection: 5
Climate change adaptation
Applied GIS and Remote sensing
Environmental and Social safeguard
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,483
* Total H IndexRankings
Ranking Based On Selection: 6
Climate Change Impacts
GIS & Remote Sensing
Land Use Change
Air Quality
Limnology
Metrics
H-Index
i10 Index
Citation Counts
7
6
147
* Total H IndexRankings
Ranking Based On Selection: 7
Environmental sciences
Natural resource management
Mining and Rehabilitation
Earth Sciences
Hydro-geology
Metrics
H-Index
i10 Index
Citation Counts
7
5
99
* Total H IndexRankings
Ranking Based On Selection: 8
Environment and Community Development
Mobile Money Technology
Women Empowerment
Metrics
H-Index
i10 Index
Citation Counts
7
6
131
* Total H IndexRankings
Ranking Based On Selection: 9
Agricultural Systems modelling
Climate Change Modelling
GIS
Remote Sensing
Land Use Analysis
Metrics
H-Index
i10 Index
Citation Counts
6
4
117
* Total H IndexRankings
Ranking Based On Selection: 10
Civil and Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
6
6
305
* Total H IndexRankings
Ranking Based On Selection: 11
ENVIRONMENTAL ENGINEERING
WASTE WATER ENGINEERING AND STRUCTURAL ENGINEERING.
Metrics
H-Index
i10 Index
Citation Counts
6
4
180
* Total H IndexRankings
Ranking Based On Selection: 12
Environmental Management Systems
Circular & Green Economy
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
5
4
115
* Total H IndexRankings
Ranking Based On Selection: 13
Environmental Technology /Analytical Chemistry
Metrics
H-Index
i10 Index
Citation Counts
4
0
30
* Total H IndexRankings
Ranking Based On Selection: 14
Water and environmental engineering
wastewater technology
Metrics
H-Index
i10 Index
Citation Counts
4
2
95
* Total H IndexRankings
Ranking Based On Selection: 15
Environmental management
Metrics
H-Index
i10 Index
Citation Counts
3
1
30
* Total H IndexRankings
Ranking Based On Selection: 16
Environment
Metrics
H-Index
i10 Index
Citation Counts
3
0
13
* Total H IndexRankings
Ranking Based On Selection: 17
Water
Sanitation and Hygiene
Metrics
H-Index
i10 Index
Citation Counts
3
0
19
* Total H IndexRankings
Ranking Based On Selection: 18
non communicable diseases
Metrics
H-Index
i10 Index
Citation Counts
2
1
29
* Total H IndexRankings
Ranking Based On Selection: 19
Environment
Safety
Health
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
* Total H IndexRankings
Ranking Based On Selection: 20
Environmental Science
Green Economy
Climate Change
Climate Justice
Politics and Social Work
Metrics
H-Index
i10 Index
Citation Counts
2
0
8
* Total H IndexRankings
Ranking Based On Selection: 21
Environmental Science
Soil Science
Pollution
Metrics
H-Index
i10 Index
Citation Counts
2
1
16
* Total H IndexRankings
Ranking Based On Selection: 22
Planning and Management of Natural Resources
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
* Total H IndexRankings
Ranking Based On Selection: 23
Environmental Security
Natural resource conflicts and Peace building
Metrics
H-Index
i10 Index
Citation Counts
2
0
6
* Total H IndexRankings
Ranking Based On Selection: 24
ENVIRONMENTAL ARCHAEOLOGY
IRON AGE ARCHAEOLOGY AND GENDER STUDIES
Metrics
H-Index
i10 Index
Citation Counts
2
0
5
* Total H IndexRankings
Ranking Based On Selection: 25
Soil
Water and Environmental Engineering and Management
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Bancy Mati
Metrics
H-Index
i10-Index
Citation Counts
31
51
5,677
land and water management
Irrigation
Climate Change Resilience
sustainable agriculture
food and nutrition security
Joseph Sang
Metrics
H-Index
i10-Index
Citation Counts
16
23
876
Water Resource Management
Ecosystem
Hydrology
watersheds management
GIS and Remote Sensing
James Wambua Kaluli
Metrics
H-Index
i10-Index
Citation Counts
16
29
1,103
Engineering Materials and Environment
David M Mulbah Jr
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
13
20
1,094
Climate change and Adaptation
Gender and Development
Aggrey Ochieng Adimo
Metrics
H-Index
i10-Index
Citation Counts
8
8
1,483
Climate change adaptation
Applied GIS and Remote sensing
Environmental and Social safeguard
Stephen Balaka Opiyo|Stephen Balaka Opiyo, Steve Opiyo, SB Opiyo
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
7
6
147
Climate Change Impacts
GIS & Remote Sensing
Land Use Change
Air Quality
Limnology
Gladys Muthochi Gathuru
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
7
5
99
Environmental sciences
Natural resource management
Mining and Rehabilitation
Earth Sciences
Hydro-geology
Jane Wanza Mutinda
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
7
6
131
Environment and Community Development
Mobile Money Technology
Women Empowerment
Harison Kipkulei
Metrics
H-Index
i10-Index
Citation Counts
6
4
117
Agricultural Systems modelling
Climate Change Modelling
GIS
Remote Sensing
Land Use Analysis
Civil and Environmental Engineering
Catherine Githuku
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
6
4
180
ENVIRONMENTAL ENGINEERING
WASTE WATER ENGINEERING AND STRUCTURAL ENGINEERING.
Environmental Management Systems
Circular & Green Economy
Climate Change
Environmental Technology /Analytical Chemistry
Cecilia W. Muriuki
Metrics
H-Index
i10-Index
Citation Counts
4
2
95
Water and environmental engineering
wastewater technology
Environmental management
Raphael Kungu
Metrics
H-Index
i10-Index
Citation Counts
3
0
13
Hannah Mbogo
Metrics
H-Index
i10-Index
Citation Counts
3
0
19
Water
Sanitation and Hygiene
Ruth Chepkosgei Kirinyet
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
2
1
29
non communicable diseases
Charles Wafula Buyela
Metrics
H-Index
i10-Index
Citation Counts
2
0
10
Environment
Safety
Health
Environmental Science
Green Economy
Climate Change
Climate Justice
Politics and Social Work
Environmental Science
Soil Science
Pollution
Planning and Management of Natural Resources
Stephen Chege Wairuri
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
2
0
6
Environmental Security
Natural resource conflicts and Peace building
Washington Ndiiri
Kenyatta University
Nairobi, Kenya
Metrics
H-Index
i10-Index
Citation Counts
2
0
5
ENVIRONMENTAL ARCHAEOLOGY
IRON AGE ARCHAEOLOGY AND GENDER STUDIES
Halake Guyo Rendilicha
Metrics
H-Index
i10-Index
Citation Counts
1
0
6
Soil
Water and Environmental Engineering and Management