University, Subject, Country, Region, World
University of California Davis 61 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
Geodynamics
Complexity
Fractals
Natural Hazards
Metrics
H-Index
i10 Index
Citation Counts
106
375
55,861
* Total H IndexRankings
Ranking Based On Selection: 2
Biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
91
328
28,521
* Total H IndexRankings
Ranking Based On Selection: 3
Geotechnical engineering
Metrics
H-Index
i10 Index
Citation Counts
68
133
40,084
* Total H IndexRankings
Ranking Based On Selection: 4
Geology/Geobiology
Metrics
H-Index
i10 Index
Citation Counts
66
121
15,008
* Total H IndexRankings
Ranking Based On Selection: 5
Earthquake Physics
Geology and Geophysics
Solid Earth Geophysics
Percolation
Geocomplexity
Metrics
H-Index
i10 Index
Citation Counts
63
220
13,820
* Total H IndexRankings
Ranking Based On Selection: 6
Paleoclimatology
Sedimentary Geology & Geochemistry
Carbonate Diagenesis
Metrics
H-Index
i10 Index
Citation Counts
62
133
12,527
* Total H IndexRankings
Ranking Based On Selection: 7
earth's magnetic field
environmental magnetism
interface of geologic processes and human activity
Metrics
H-Index
i10 Index
Citation Counts
56
136
14,030
* Total H IndexRankings
Ranking Based On Selection: 8
hydrogeology
hydrology
groundwater
water resources
heterogeneity
Metrics
H-Index
i10 Index
Citation Counts
50
106
9,312
* Total H IndexRankings
Ranking Based On Selection: 9
Tectonics
Sedimentology
Volcanology
Stratigraphy
Metrics
H-Index
i10 Index
Citation Counts
49
109
8,031
* Total H IndexRankings
Ranking Based On Selection: 10
River biogeochemistry
organic geochemistry
soil organic matter stabilization
Metrics
H-Index
i10 Index
Citation Counts
46
59
8,583
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* Total H IndexRankings
Ranking Based On Selection: 11
Tectonic Geomorphology
Metrics
H-Index
i10 Index
Citation Counts
45
81
15,033
* Total H IndexRankings
Ranking Based On Selection: 12
planetary science - shock physics
Metrics
H-Index
i10 Index
Citation Counts
44
87
6,849
* Total H IndexRankings
Ranking Based On Selection: 13
Geomorphology
Rivers
Flooding
Flood Policy
Metrics
H-Index
i10 Index
Citation Counts
40
76
7,350
* Total H IndexRankings
Ranking Based On Selection: 14
paleoceanography
geochemistry
oceanography
Metrics
H-Index
i10 Index
Citation Counts
37
58
5,634
* Total H IndexRankings
Ranking Based On Selection: 15
geochemistry - noble gases
Metrics
H-Index
i10 Index
Citation Counts
37
55
5,051
* Total H IndexRankings
Ranking Based On Selection: 16
Geology
Metrics
H-Index
i10 Index
Citation Counts
37
78
4,387
* Total H IndexRankings
Ranking Based On Selection: 17
geochemistry
paleoecology
climate change
Metrics
H-Index
i10 Index
Citation Counts
35
63
4,651
* Total H IndexRankings
Ranking Based On Selection: 18
U-series Geochemistry
Igneous petrology
Magma storage and reservoir dynamics
Metrics
H-Index
i10 Index
Citation Counts
34
46
4,186
* Total H IndexRankings
Ranking Based On Selection: 19
Geodynamics
Computational geophysics
Scientific Visualization
Natural Hazards
Metrics
H-Index
i10 Index
Citation Counts
34
66
4,784
* Total H IndexRankings
Ranking Based On Selection: 20
Tectonics
Metrics
H-Index
i10 Index
Citation Counts
32
55
3,988
* Total H IndexRankings
Ranking Based On Selection: 21
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
31
48
3,592
* Total H IndexRankings
Ranking Based On Selection: 22
Geodynamics
Subduction
Plate Tectonics
Rheology
Deep Earthquakes
Metrics
H-Index
i10 Index
Citation Counts
29
37
3,303
* Total H IndexRankings
Ranking Based On Selection: 23
Paleontology
Metrics
H-Index
i10 Index
Citation Counts
28
46
2,872
* Total H IndexRankings
Ranking Based On Selection: 24
Metamorphic petrology
Geochronology
Tectonics
Metrics
H-Index
i10 Index
Citation Counts
28
45
2,697
* Total H IndexRankings
Ranking Based On Selection: 25
Energy and the Environment
Global Ecology
Sustainability Science
Plant and Soil Ecology
Metrics
H-Index
i10 Index
Citation Counts
27
44
4,039
Donald L Turcotte
Metrics
H-Index
i10-Index
Citation Counts
106
375
55,861
Geodynamics
Complexity
Fractals
Natural Hazards
RA Dahlgren
Metrics
H-Index
i10-Index
Citation Counts
91
328
28,521
Izzat M Idriss
Metrics
H-Index
i10-Index
Citation Counts
68
133
40,084
Dawn Y Sumner
Metrics
H-Index
i10-Index
Citation Counts
66
121
15,008
John Rundle
Metrics
H-Index
i10-Index
Citation Counts
63
220
13,820
Earthquake Physics
Geology and Geophysics
Solid Earth Geophysics
Percolation
Geocomplexity
Isabel Montanez
Metrics
H-Index
i10-Index
Citation Counts
62
133
12,527
Paleoclimatology
Sedimentary Geology & Geochemistry
Carbonate Diagenesis
Kenneth Verosub
Metrics
H-Index
i10-Index
Citation Counts
56
136
14,030
earth's magnetic field
environmental magnetism
interface of geologic processes and human activity
Graham Fogg|Graham E. Fogg, Graham Edwin Fogg Jr.
Metrics
H-Index
i10-Index
Citation Counts
50
106
9,312
hydrogeology
hydrology
groundwater
water resources
heterogeneity
Cathy Busby
Metrics
H-Index
i10-Index
Citation Counts
49
109
8,031
Tectonics
Sedimentology
Volcanology
Stratigraphy
Peter J Hernes
Metrics
H-Index
i10-Index
Citation Counts
46
59
8,583
River biogeochemistry
organic geochemistry
soil organic matter stabilization
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Michael Oskin
Metrics
H-Index
i10-Index
Citation Counts
45
81
15,033
Sarah T Stewart|Sarah Stewart-Mukhopadhyay
Metrics
H-Index
i10-Index
Citation Counts
44
87
6,849
planetary science - shock physics
Nicholas Pinter
Metrics
H-Index
i10-Index
Citation Counts
40
76
7,350
Geomorphology
Rivers
Flooding
Flood Policy
Ann D Russell
Metrics
H-Index
i10-Index
Citation Counts
37
58
5,634
paleoceanography
geochemistry
oceanography
Sujoy Mukhopadhyay
Metrics
H-Index
i10-Index
Citation Counts
37
55
5,051
Robert Zierenberg
Metrics
H-Index
i10-Index
Citation Counts
37
78
4,387
Tessa M Hill
Metrics
H-Index
i10-Index
Citation Counts
35
63
4,651
geochemistry
paleoecology
climate change
Kari M Cooper
Metrics
H-Index
i10-Index
Citation Counts
34
46
4,186
U-series Geochemistry
Igneous petrology
Magma storage and reservoir dynamics
Louise Kellogg
Metrics
H-Index
i10-Index
Citation Counts
34
66
4,784
Geodynamics
Computational geophysics
Scientific Visualization
Natural Hazards
Sarah Roeske
Metrics
H-Index
i10-Index
Citation Counts
32
55
3,988
Josh Wimpenny
Metrics
H-Index
i10-Index
Citation Counts
31
48
3,592
Magali Billen
Metrics
H-Index
i10-Index
Citation Counts
29
37
3,303
Geodynamics
Subduction
Plate Tectonics
Rheology
Deep Earthquakes
Sandra J Carlson
Metrics
H-Index
i10-Index
Citation Counts
28
46
2,872
Howard W Day
Metrics
H-Index
i10-Index
Citation Counts
28
45
2,697
Metamorphic petrology
Geochronology
Tectonics
Rebecca R Hernandez
Metrics
H-Index
i10-Index
Citation Counts
27
44
4,039
Energy and the Environment
Global Ecology
Sustainability Science
Plant and Soil Ecology