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. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
131,750
Country Rank
3,215
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/15936.png)
![Japan](/flags/jp.png)
![Kenji Horie](/user/assets/images/profile/no-profile-photo.png)
Earth Science
Isotope Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
64
0.719
* Total i10 Index Rankings
World Rank
341,757
Country Rank
7,827
Institution Rank : 8
![](https://cdn.adscientificindex.com/logos/15936.png)
![Japan](/flags/jp.png)
![Jun'İchi Okuno](/user/assets/images/profile/no-profile-photo.png)
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
28
0.683
* Total i10 Index Rankings
World Rank
389,227
Country Rank
8,797
Institution Rank : 13
![](https://cdn.adscientificindex.com/logos/15936.png)
![Japan](/flags/jp.png)
![Yusuke Suganuma](https://cdn.adscientificindex.com/pictures/9d/4407924.jpg)
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
* Total i10 Index Rankings
World Rank
773,425
Country Rank
15,499
Institution Rank : 23
![](https://cdn.adscientificindex.com/logos/15936.png)
![Japan](/flags/jp.png)
![Atsushi Yoshida](https://cdn.adscientificindex.com/pictures/45/4510798.jpg)
Earth system
Aerosol
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 Index Rankings
World Rank
1,098,808
Country Rank
5,066
Institution Rank : 122
![](https://cdn.adscientificindex.com/logos/17426.png)
![New Zealand](/flags/nz.png)
![Svenja Halfter](/pictures/3b/5259049.jpg)
carbon cycle
zooplankton ecology
polar regions
biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
* Total i10 Index Rankings
World Rank
1,394,938
Country Rank
25,615
Institution Rank : 28
![](https://cdn.adscientificindex.com/logos/15936.png)
![Japan](/flags/jp.png)
![Akihisa Hattori](/user/assets/images/profile/no-profile-photo.png)
Geodesy
GNSS
SLR
Absolute gravimetry
Antarctica
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
131,750
![Japan](/flags/jp.png)
3,215
![](https://cdn.adscientificindex.com/logos/15936.png)
4
Kenji Horie
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
89
64
0.719
![](https://cdn.adscientificindex.com/logos/15936.png)
Earth Science
Isotope Geochemistry
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
341,757
![Japan](/flags/jp.png)
7,827
![](https://cdn.adscientificindex.com/logos/15936.png)
8
Jun'İchi Okuno
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
28
0.683
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
389,227
![Japan](/flags/jp.png)
8,797
![](https://cdn.adscientificindex.com/logos/15936.png)
13
Yusuke Suganuma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
25
0.694
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
773,425
![Japan](/flags/jp.png)
15,499
![](https://cdn.adscientificindex.com/logos/15936.png)
23
Atsushi Yoshida
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,098,808
![New Zealand](/flags/nz.png)
5,066
![](https://cdn.adscientificindex.com/logos/17426.png)
122
Svenja Halfter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
6
1.000
![](https://cdn.adscientificindex.com/logos/17426.png)
carbon cycle
zooplankton ecology
polar regions
biogeochemistry
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
1,394,938
![Japan](/flags/jp.png)
25,615
![](https://cdn.adscientificindex.com/logos/15936.png)
28
Akihisa Hattori
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
![](https://cdn.adscientificindex.com/logos/15936.png)
Geodesy
GNSS
SLR
Absolute gravimetry
Antarctica