Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Glaciology
Ice core science
Paleoclimate
Snow Hydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
74
0.500
* Total i10 IndexRankings
Ranking Based On Selection :2
Seabird
biologging
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
90
0.789
* Total i10 IndexRankings
Ranking Based On Selection :3
Upper atmospheric physics
ionospheric physics
ionosphere
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
45
0.500
* Total i10 IndexRankings
Ranking Based On Selection :4
Earth Science
Isotope Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
64
0.719
* Total i10 IndexRankings
Ranking Based On Selection :5
Space Physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
55
0.688
* Total i10 IndexRankings
Ranking Based On Selection :6
Glaciology
Ice Core
Radioglaciology
Ice Physics
Climate Change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
39
0.513
* Total i10 IndexRankings
Ranking Based On Selection :7
Marine Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
* Total i10 IndexRankings
Ranking Based On Selection :8
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
28
0.683
* Total i10 IndexRankings
Ranking Based On Selection :9
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
* Total i10 IndexRankings
Ranking Based On Selection :10
Atmospheric aerosols
Aerosol-cloud interactions
Ice nucleation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
35
0.897
* Total i10 IndexRankings
Ranking Based On Selection :11
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
* Total i10 IndexRankings
Ranking Based On Selection :12
Atmospheric Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
24
0.615
* Total i10 IndexRankings
Ranking Based On Selection :13
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
* Total i10 IndexRankings
Ranking Based On Selection :14
Aquatic Ecology
Limnology
Microbiology
Environmental Science
Earth Life Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
24
0.800
* Total i10 IndexRankings
Ranking Based On Selection :15
Glaciology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
* Total i10 IndexRankings
Ranking Based On Selection :16
Earth and Planetary Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
* Total i10 IndexRankings
Ranking Based On Selection :17
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
16
0.842
* Total i10 IndexRankings
Ranking Based On Selection :18
sea-level change
last glacial period
Antarctica
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
17
0.944
* Total i10 IndexRankings
Ranking Based On Selection :19
Upper Atmospheric Physics
Space Plasma Physics
Planetary Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
* Total i10 IndexRankings
Ranking Based On Selection :20
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
13
0.722
* Total i10 IndexRankings
Ranking Based On Selection :21
geology
geochemistry
petrology
analytical chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
15
0.938
* Total i10 IndexRankings
Ranking Based On Selection :22
glacier
ice core
cryoconite
mineral dust
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection :23
Earth system
Aerosol
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 IndexRankings
Ranking Based On Selection :24
paleoclimate
glaciology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
* Total i10 IndexRankings
Ranking Based On Selection :25
climate dynamics
physical oceanography
air-sea-ice interaction
Southern Ocean
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
Hideaki Motoyama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
74
0.500
Glaciology
Ice core science
Paleoclimate
Snow Hydrology
Akinori Takahashi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
90
0.789
Yasunobu Ogawa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
45
0.500
Kenji Horie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
64
0.719
Earth Science
Isotope Geochemistry
Ryuho Kataoka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
55
0.688
Shuji Fujita
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
39
0.513
Glaciology
Ice Core
Radioglaciology
Ice Physics
Climate Change
Jean-Baptiste Thiebot
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
Jun'İchi Okuno
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
28
0.683
Naoya Imae
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
Yutaka Tobo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
35
0.897
菅沼悠介
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
Yoshihiro Tomikawa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
24
0.615
Yusuke Suganuma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
Yukiko Tanabe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
24
0.800
Aquatic Ecology
Limnology
Microbiology
Environmental Science
Earth Life Science
Shun Tsutaki
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
Masakazu Fujii
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
Ryosuke Makabe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
16
0.842
Takeshige Ishiwa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
17
0.944
Takanori Nishiyama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
15
0.833
Upper Atmospheric Physics
Space Plasma Physics
Planetary Science
Takahiro Iida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
13
0.722
Mami Takehara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
15
0.938
geology
geochemistry
petrology
analytical chemistry
Naoko Nagatsuka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Atsushi Yoshida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Ikumi Oyabu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
Kaihe Yamazaki
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
climate dynamics
physical oceanography
air-sea-ice interaction
Southern Ocean