i10 Productivity
Rankings

National Institute of Polar Research/ Scientists i10 Productivity Rankings 2025

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
Japan
Hideaki Motoyama
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
Japan
Akinori Takahashi
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
Japan
Yasunobu Ogawa
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
Japan
Kenji Horie
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
Japan
Ryuho Kataoka
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
Japan
Shuji Fujita
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 :9
Japan
Naoya Imae
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
* Total i10 IndexRankings
Ranking Based On Selection :10
Japan
Yutaka Tobo
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
Japan
菅沼悠介
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
* Total i10 IndexRankings
Ranking Based On Selection :14
Japan
Yukiko Tanabe
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
Japan
Shun Tsutaki
Glaciology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
* Total i10 IndexRankings
Ranking Based On Selection :16
Japan
Masakazu Fujii
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
Japan
Ryosuke Makabe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
16
0.842
* Total i10 IndexRankings
Ranking Based On Selection :18
Japan
Takeshige Ishiwa
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
Japan
Takanori Nishiyama
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
Japan
Takahiro Iida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
13
0.722
* Total i10 IndexRankings
Ranking Based On Selection :21
Japan
Mami Takehara
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
Japan
Naoko Nagatsuka
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
Japan
Atsushi Yoshida
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
Japan
Ikumi Oyabu
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
Japan
Kaihe Yamazaki
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
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Hideaki Motoyama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
148
74
0.500
Glaciology
Ice core science
Paleoclimate
Snow Hydrology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Akinori Takahashi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
90
0.789
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 3
Yasunobu Ogawa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
45
0.500
Upper atmospheric physics
ionospheric physics
ionosphere
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 4
Kenji Horie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
64
0.719
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Ryuho Kataoka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
80
55
0.688
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 6
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
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Jean-Baptiste Thiebot
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
35
0.854
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Jun'İchi Okuno
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
28
0.683
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Naoya Imae
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
26
0.634
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 10
Yutaka Tobo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
35
0.897
Atmospheric aerosols
Aerosol-cloud interactions
Ice nucleation
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 11
菅沼悠介
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
26
0.667
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 12
Yoshihiro Tomikawa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
24
0.615
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 13
Yusuke Suganuma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 14
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
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 15
Shun Tsutaki
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
17
0.850
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 16
Masakazu Fujii
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
Earth and Planetary Science
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 17
Ryosuke Makabe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
16
0.842
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 18
Takeshige Ishiwa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
17
0.944
sea-level change
last glacial period
Antarctica
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 19
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
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 20
Takahiro Iida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
13
0.722
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 21
Mami Takehara
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
15
0.938
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 22
Naoko Nagatsuka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
glacier
ice core
cryoconite
mineral dust
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 23
Atsushi Yoshida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 24
Ikumi Oyabu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 25
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