Subject Rankings

University of Southern California Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Dec 03, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (873.937) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

* Total H IndexRankings
Ranking Based On Selection :1
Kenneth H Nealson
environmental microbiology
bioluminescence
geobiology
Metrics
H-Index
i10 Index
Citation Counts
138
433
80,306
* Total H IndexRankings
Ranking Based On Selection :3
David J Bottjer
paleobiology
paleoecology
geobiology
paleontology
Metrics
H-Index
i10 Index
Citation Counts
79
248
22,911
* Total H IndexRankings
Ranking Based On Selection :4
William Berelson
geochemistry
oceanography
geobiology
Metrics
H-Index
i10 Index
Citation Counts
70
150
17,231
* Total H IndexRankings
Ranking Based On Selection :9
A Joshua West
Geochemistry
Geomorphology
Geology
Hydrology
Conservation
Metrics
H-Index
i10 Index
Citation Counts
51
100
9,969
* Total H IndexRankings
Ranking Based On Selection :10
James F Dolan
earthquake geology
tectonic geomorphology
fault system behavior
paleoseismology
seismic hazard
Metrics
H-Index
i10 Index
Citation Counts
49
104
7,633
* Total H IndexRankings
Ranking Based On Selection :11
Steve Lund
paleomagnetism
geomagnetism
paleoclimate
Metrics
H-Index
i10 Index
Citation Counts
45
92
7,400
* Total H IndexRankings
Ranking Based On Selection :12
Sylvain Barbot
Earthquake Physics
Crustal Deformation
Numerical Modeling
Remote Sensing
Metrics
H-Index
i10 Index
Citation Counts
42
75
6,075
* Total H IndexRankings
Ranking Based On Selection :13
Frank Corsetti
Geology
Geobiology
Sedimentology
Carbonates
Mass Extinctions
Metrics
H-Index
i10 Index
Citation Counts
41
73
5,070
* Total H IndexRankings
Ranking Based On Selection :14
Sarah J Feakins
Paleoclimate
Isotope Biogeochemistry
Organic Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
37
64
5,548
* Total H IndexRankings
Ranking Based On Selection :15
Doug Larowe
Bioenergetics
geochemistry
thermodynamics
organic matter
Metrics
H-Index
i10 Index
Citation Counts
36
60
5,962
* Total H IndexRankings
Ranking Based On Selection :16
Philip James Maechling
scientific software development
high performance computing
real-time earthquake monitoring
seismic hazard analysis
Metrics
H-Index
i10 Index
Citation Counts
34
53
5,983
* Total H IndexRankings
Ranking Based On Selection :17
Sahar Bakhshian
CO2 Storage
Multiphase Flow in Porous Media
High-Performance Computing
Metrics
H-Index
i10 Index
Citation Counts
18
22
983
* Total H IndexRankings
Ranking Based On Selection :19
Fandel Lin
Geographic Information Science
Data Mining
Urban Computing
Combinatorial Optimization
Metrics
H-Index
i10 Index
Citation Counts
6
1
80
* Total H IndexRankings
Ranking Based On Selection :21
Yubin Raut
microbial ecology
biogeochemistry
biological nitrogen fixation
plankton biogeography
Metrics
H-Index
i10 Index
Citation Counts
4
2
55
* Total H IndexRankings
Ranking Based On Selection :22
Abra Atwood
geomorphology
groundwater
critical zone geology
geochemistry
Metrics
H-Index
i10 Index
Citation Counts
4
2
34
* Total H IndexRankings
Ranking Based On Selection :23
Shannon K Brophy
geology
paleontology
paleoecology
stratigraphy
sedimentology
Metrics
H-Index
i10 Index
Citation Counts
3
1
21
* Total H IndexRankings
Ranking Based On Selection :24
Rachel T So
paleoclimate
organic geochemistry
lake sediment
leaf waxes
GDGT
Metrics
H-Index
i10 Index
Citation Counts
2
1
34
* Total H IndexRankings
Ranking Based On Selection :25
Rucha Pradip Wani
Oceanography
Geochemistry
Carbon System Cycling
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Kenneth H Nealson
Metrics
H-Index
i10-Index
Citation Counts
138
433
80,306
environmental microbiology
bioluminescence
geobiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Yehuda Ben Zion
Metrics
H-Index
i10-Index
Citation Counts
88
279
23,894
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
David J Bottjer
Metrics
H-Index
i10-Index
Citation Counts
79
248
22,911
paleobiology
paleoecology
geobiology
paleontology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
William Berelson
Metrics
H-Index
i10-Index
Citation Counts
70
150
17,231
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
John E Vidale
Metrics
H-Index
i10-Index
Citation Counts
68
133
16,369
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
John Platt
Metrics
H-Index
i10-Index
Citation Counts
62
120
15,748
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Charles Sammis
Metrics
H-Index
i10-Index
Citation Counts
55
96
13,526
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Gregory A Davis
Metrics
H-Index
i10-Index
Citation Counts
53
100
15,568
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
A Joshua West
Metrics
H-Index
i10-Index
Citation Counts
51
100
9,969
Geochemistry
Geomorphology
Geology
Hydrology
Conservation
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
James F Dolan
Metrics
H-Index
i10-Index
Citation Counts
49
104
7,633
earthquake geology
tectonic geomorphology
fault system behavior
paleoseismology
seismic hazard
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Steve Lund
Metrics
H-Index
i10-Index
Citation Counts
45
92
7,400
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Sylvain Barbot
Metrics
H-Index
i10-Index
Citation Counts
42
75
6,075
Earthquake Physics
Crustal Deformation
Numerical Modeling
Remote Sensing
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Frank Corsetti
Metrics
H-Index
i10-Index
Citation Counts
41
73
5,070
Geology
Geobiology
Sedimentology
Carbonates
Mass Extinctions
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Sarah J Feakins
Metrics
H-Index
i10-Index
Citation Counts
37
64
5,548
Paleoclimate
Isotope Biogeochemistry
Organic Geochemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Doug Larowe
Metrics
H-Index
i10-Index
Citation Counts
36
60
5,962
Bioenergetics
geochemistry
thermodynamics
organic matter
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Philip James Maechling
Metrics
H-Index
i10-Index
Citation Counts
34
53
5,983
scientific software development
high performance computing
real-time earthquake monitoring
seismic hazard analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Sahar Bakhshian
Metrics
H-Index
i10-Index
Citation Counts
18
22
983
CO2 Storage
Multiphase Flow in Porous Media
High-Performance Computing
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Deborah Khider
Metrics
H-Index
i10-Index
Citation Counts
18
20
1,099
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Fandel Lin
Metrics
H-Index
i10-Index
Citation Counts
6
1
80
Geographic Information Science
Data Mining
Urban Computing
Combinatorial Optimization
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Yu-Fang Hsu
Metrics
H-Index
i10-Index
Citation Counts
4
3
68
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Yubin Raut
Metrics
H-Index
i10-Index
Citation Counts
4
2
55
microbial ecology
biogeochemistry
biological nitrogen fixation
plankton biogeography
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Abra Atwood
Metrics
H-Index
i10-Index
Citation Counts
4
2
34
geomorphology
groundwater
critical zone geology
geochemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Shannon K Brophy
Metrics
H-Index
i10-Index
Citation Counts
3
1
21
geology
paleontology
paleoecology
stratigraphy
sedimentology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Rachel T So
Metrics
H-Index
i10-Index
Citation Counts
2
1
34
paleoclimate
organic geochemistry
lake sediment
leaf waxes
GDGT
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Rucha Pradip Wani
Metrics
H-Index
i10-Index
Citation Counts
2
1
28
Oceanography
Geochemistry
Carbon System Cycling