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 Feb 03, 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 (870.057) 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
paleoclimatology
geomorphology
geochronology
megadroughts
paleoseismology
Metrics
H-Index
i10 Index
Citation Counts
65
195
13,836
* Total H IndexRankings
Ranking Based On Selection: 2
Paleopedology
paleoclimatology
Metrics
H-Index
i10 Index
Citation Counts
50
137
7,144
* Total H IndexRankings
Ranking Based On Selection: 3
Earth Systems
Biogeochemistry
climate-vegetation-soil feedbacks
Metrics
H-Index
i10 Index
Citation Counts
35
57
11,704
* Total H IndexRankings
Ranking Based On Selection: 4
Hydrology
Engineering Geology
Geomorphology
Metrics
H-Index
i10 Index
Citation Counts
35
62
9,654
* Total H IndexRankings
Ranking Based On Selection: 5
Paleoclimatology
Paleobotany
Ecology
Paleomagnetism
Geology
Metrics
H-Index
i10 Index
Citation Counts
33
61
3,509
* Total H IndexRankings
Ranking Based On Selection: 6
Volcanoes . Gems . Magmas
Metrics
H-Index
i10 Index
Citation Counts
17
24
784
* Total H IndexRankings
Ranking Based On Selection: 7
Paleoecology
Reef Development
Human Impact on Reefs
Metrics
H-Index
i10 Index
Citation Counts
10
10
283
* Total H IndexRankings
Ranking Based On Selection: 8
hydrogeology
wastewater
springs
water management
Metrics
H-Index
i10 Index
Citation Counts
7
7
858
* Total H IndexRankings
Ranking Based On Selection: 9
Agriculture
Biogeochemistry
Soil Science
Soil Microbiology
Metrics
H-Index
i10 Index
Citation Counts
7
6
243
* Total H IndexRankings
Ranking Based On Selection: 10
Analytical Chemistry
Mass Spectrometry
Limnology
Aquatic Biogeochemistry
HABs
Metrics
H-Index
i10 Index
Citation Counts
6
6
331
* Total H IndexRankings
Ranking Based On Selection: 11
Seismology
Metrics
H-Index
i10 Index
Citation Counts
3
2
35
* Total H IndexRankings
Ranking Based On Selection: 12
IoT
sensor data
machine learning and computational geophysics
Metrics
H-Index
i10 Index
Citation Counts
3
0
18
* Total H IndexRankings
Ranking Based On Selection: 13
Geology
Metrics
H-Index
i10 Index
Citation Counts
3
0
15
* Total H IndexRankings
Ranking Based On Selection: 14
Planetary Geophysics
Metrics
H-Index
i10 Index
Citation Counts
2
1
20
* Total H IndexRankings
Ranking Based On Selection: 15
Geophysics
Internet of Things
Data Science
Metrics
H-Index
i10 Index
Citation Counts
2
0
18
* Total H IndexRankings
Ranking Based On Selection: 16
petroeum geosciences
hydrogeophysics
exploration geophysics
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
* Total H IndexRankings
Ranking Based On Selection: 17
OAE2
Stable Isotope Geochemistry
Petrography
Sedimentology
Geochronology
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
* Total H IndexRankings
Ranking Based On Selection: 18
Paleoclimatology
Soil
Paleosols
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Steven Forman
Metrics
H-Index
i10-Index
Citation Counts
65
195
13,836
paleoclimatology
geomorphology
geochronology
megadroughts
paleoseismology
Steven G Driese
Metrics
H-Index
i10-Index
Citation Counts
50
137
7,144
Paleopedology
paleoclimatology
William Hockaday
Metrics
H-Index
i10-Index
Citation Counts
35
57
11,704
Earth Systems
Biogeochemistry
climate-vegetation-soil feedbacks
Peter M Allen
Metrics
H-Index
i10-Index
Citation Counts
35
62
9,654
Hydrology
Engineering Geology
Geomorphology
Daniel Peppe
Metrics
H-Index
i10-Index
Citation Counts
33
61
3,509
Paleoclimatology
Paleobotany
Ecology
Paleomagnetism
Geology
Kenneth S Befus
Metrics
H-Index
i10-Index
Citation Counts
17
24
784
Rena Bonem
Metrics
H-Index
i10-Index
Citation Counts
10
10
283
Paleoecology
Reef Development
Human Impact on Reefs
Joe C Yelderman Jr
Metrics
H-Index
i10-Index
Citation Counts
7
7
858
hydrogeology
wastewater
springs
water management
Tabinda Athar
Metrics
H-Index
i10-Index
Citation Counts
7
6
243
Agriculture
Biogeochemistry
Soil Science
Soil Microbiology
Malcolm A Barnard
Metrics
H-Index
i10-Index
Citation Counts
6
6
331
Analytical Chemistry
Mass Spectrometry
Limnology
Aquatic Biogeochemistry
HABs
Mukesh Kumar Das
Metrics
H-Index
i10-Index
Citation Counts
3
2
35
Joseph Thangraj
Metrics
H-Index
i10-Index
Citation Counts
3
0
18
IoT
sensor data
machine learning and computational geophysics
Nicholas Nick Wagner|Nicholas Wagner, Nicholas L. Wagner, Nick Wagner
Metrics
H-Index
i10-Index
Citation Counts
2
1
20
Frank Sepulveda
Metrics
H-Index
i10-Index
Citation Counts
2
0
18
Geophysics
Internet of Things
Data Science
Nnamdi Joseph Ajah
Metrics
H-Index
i10-Index
Citation Counts
2
0
11
petroeum geosciences
hydrogeophysics
exploration geophysics
Jordan T Walker
Metrics
H-Index
i10-Index
Citation Counts
1
0
5
OAE2
Stable Isotope Geochemistry
Petrography
Sedimentology
Geochronology
Paleoclimatology
Soil
Paleosols