University, Subject, Country, Region, World
GNS Science 35 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 Jun 13, 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 (1.121.291) 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
Metrics
H-Index
i10 Index
Citation Counts
54
100
13,282
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* Total H IndexRankings
Ranking Based On Selection: 2
Metrics
H-Index
i10 Index
Citation Counts
40
102
7,179
* Total H IndexRankings
Ranking Based On Selection: 3
Paleoclimate
stratigraphy
Antarctica
sea level
educatio
Metrics
H-Index
i10 Index
Citation Counts
35
73
5,204
* Total H IndexRankings
Ranking Based On Selection: 4
Tsunami
Earthquake
Tsunami Early Warning
Sediment Transpor
Metrics
H-Index
i10 Index
Citation Counts
33
68
3,400
* Total H IndexRankings
Ranking Based On Selection: 5
Metrics
H-Index
i10 Index
Citation Counts
33
54
4,525
* Total H IndexRankings
Ranking Based On Selection: 6
Metrics
H-Index
i10 Index
Citation Counts
27
34
2,474
* Total H IndexRankings
Ranking Based On Selection: 7
Metrics
H-Index
i10 Index
Citation Counts
26
68
3,652
* Total H IndexRankings
Ranking Based On Selection: 8
Petroleum
coa
Metrics
H-Index
i10 Index
Citation Counts
24
34
2,019
* Total H IndexRankings
Ranking Based On Selection: 9
Metrics
H-Index
i10 Index
Citation Counts
23
46
1,749
* Total H IndexRankings
Ranking Based On Selection: 10
Early warning systems
communication
risk
natural hazar
Metrics
H-Index
i10 Index
Citation Counts
22
38
2,176
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* Total H IndexRankings
Ranking Based On Selection: 11
tsunami
earthquake
landslide
numerical modelling
tsunami warning and forecas
Metrics
H-Index
i10 Index
Citation Counts
22
31
2,303
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
21
41
2,690
* Total H IndexRankings
Ranking Based On Selection: 13
radiometric dating
sediment dating
geochronology
hydrothermal
beryllium-1
Metrics
H-Index
i10 Index
Citation Counts
21
42
1,802
* Total H IndexRankings
Ranking Based On Selection: 14
Magnetotelluric
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,163
* Total H IndexRankings
Ranking Based On Selection: 15
Biogeosciences
Enivronmental Modelling
Antarctic
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,209
* Total H IndexRankings
Ranking Based On Selection: 16
Disaster Risk Reduction
Risk Assessment
Resilience
Vulnerability assessmen
Metrics
H-Index
i10 Index
Citation Counts
14
18
591
* Total H IndexRankings
Ranking Based On Selection: 17
Microelectronics
Physic
Metrics
H-Index
i10 Index
Citation Counts
13
16
348
* Total H IndexRankings
Ranking Based On Selection: 18
Hillslope geomorphology
Fluvial geomorphology
Rainfall induced landslide
Metrics
H-Index
i10 Index
Citation Counts
13
14
953
* Total H IndexRankings
Ranking Based On Selection: 19
Natural hazards
Resilience
Policy
Governanc
Metrics
H-Index
i10 Index
Citation Counts
11
12
1,089
* Total H IndexRankings
Ranking Based On Selection: 20
Metrics
H-Index
i10 Index
Citation Counts
11
13
842
* Total H IndexRankings
Ranking Based On Selection: 21
image fusion
atmospheric correction
photogrammetry
hyperspectral & thermal image processin
Metrics
H-Index
i10 Index
Citation Counts
11
12
528
* Total H IndexRankings
Ranking Based On Selection: 22
Metrics
H-Index
i10 Index
Citation Counts
11
13
475
* Total H IndexRankings
Ranking Based On Selection: 23
GIS
crisis crowdsourcing
volunteered geographic information
emergency management
disaster managemen
Metrics
H-Index
i10 Index
Citation Counts
10
10
443
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
10
11
398
* Total H IndexRankings
Ranking Based On Selection: 25
nanomateria
Metrics
H-Index
i10 Index
Citation Counts
9
9
717
Donna Eberhart-Phillips
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
54
100
13,282
Matt Gerstenberger
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
40
102
7,179
Richard Levy
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
35
73
5,204
Aditya Riadi Gusman
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
33
68
3,400
Kevin Faure
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
33
54
4,525
Wiebke Heise
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
27
34
2,474
Chris Massey
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
26
68
3,652
W Trompetter
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
23
46
1,749
Sally Potter
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
22
38
2,176
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
Xiaoming Wang
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
22
31
2,303
tsunami
earthquake
landslide
numerical modelling
tsunami warning and forecas
Robert Funnell
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
21
41
2,690
Robert Ditchburn
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
21
42
1,802
radiometric dating
sediment dating
geochronology
hydrothermal
beryllium-1
Edward A Bertrand
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
19
28
1,163
Josh L. Hayes
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
14
18
591
Disaster Risk Reduction
Risk Assessment
Resilience
Vulnerability assessmen
Holger Fiedler
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
13
16
348
Brenda Rosser
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
13
14
953
Hillslope geomorphology
Fluvial geomorphology
Rainfall induced landslide
Delia Tamsen (Strong)
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
11
12
1,089
Salman Ashraf
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
11
12
528
image fusion
atmospheric correction
photogrammetry
hyperspectral & thermal image processin
Maureen Coomer
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
11
13
475
Sara Harrison
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
10
10
443
GIS
crisis crowdsourcing
volunteered geographic information
emergency management
disaster managemen
Rob Van Der Raaij
GNS Science
Lower Hutt, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
10
11
398