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
159,976
Country Rank
162
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Johnbosco C. Egbueri](https://cdn.adscientificindex.com/pictures/df/100329.jpg)
Engineering/Environmental Geology
Water quality/health risks
Soil erosion/landslides
Geostatistics
Artificial intelligence
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
77
1.000
* Total i10 Index Rankings
World Rank
930,311
Country Rank
7,886
Institution Rank : 31
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Gordian Obi](/pictures/78/4515937.jpg)
Sedimentology
stratigraphy
petroleum geochemistry
paleobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
* Total i10 Index Rankings
World Rank
1,030,607
Country Rank
10,295
Institution Rank : 45
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Odumodu Chukwuemeka Frank Raluchukwu](/pictures/00/4531109.jpg)
Petroleum Geology
Paleontology and Biostratigraphy
Sedimentology and Stratigraphy
Regional Geology.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
1
0.125
* Total i10 Index Rankings
World Rank
1,328,062
Country Rank
18,027
Institution Rank : 94
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Onyemesili Ogechukwu Caroline](/user/assets/images/profile/no-profile-photo.png)
Source rock and crude oil characterization
stratigraphy
groundwater and environmental studies.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 Index Rankings
World Rank
1,434,341
Country Rank
20,878
Institution Rank : 131
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Odunze-Akasiugwu Shirley](/user/assets/images/profile/no-profile-photo.png)
Paleontology
Paleobiology
Sequence stratigraphy
Sedimentology
Stratigraphy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
1
0.333
* Total i10 Index Rankings
World Rank
1,679,566
Country Rank
28,340
Institution Rank : 190
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Chinedu Charles Mgbolu](/pictures/16/4637326.jpg)
Applied geophysics
Hydrogeophysics
Environmetal geology
Exploration geophysics
Medical geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 Index Rankings
World Rank
1,854,832
Country Rank
33,268
Institution Rank : 234
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Anene Chibundu](/user/assets/images/profile/no-profile-photo.png)
Petroleum geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
* Total i10 Index Rankings
World Rank
2,184,487
Country Rank
46,819
Institution Rank : 405
![](https://cdn.adscientificindex.com/logos/1584.png)
![Nigeria](/flags/ng.png)
![Mbamalu Maryann](/user/assets/images/profile/no-profile-photo.png)
Geoscience
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
* Total i10 Index Rankings
World Ranking
159,976
Country Ranking
162
Institution Ranking
1
Johnbosco C. Egbueri
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
77
1.000
![](https://cdn.adscientificindex.com/logos/1584.png)
Engineering/Environmental Geology
Water quality/health risks
Soil erosion/landslides
Geostatistics
Artificial intelligence
* Total i10 Index Rankings
World Ranking
930,311
Country Ranking
7,886
Institution Ranking
31
Gordian Obi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
6
0.600
![](https://cdn.adscientificindex.com/logos/1584.png)
Sedimentology
stratigraphy
petroleum geochemistry
paleobiology
* Total i10 Index Rankings
World Ranking
1,030,607
Country Ranking
10,295
Institution Ranking
45
Odumodu Chukwuemeka Frank Raluchukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
1
0.125
![](https://cdn.adscientificindex.com/logos/1584.png)
Petroleum Geology
Paleontology and Biostratigraphy
Sedimentology and Stratigraphy
Regional Geology.
* Total i10 Index Rankings
World Ranking
1,328,062
Country Ranking
18,027
Institution Ranking
94
Onyemesili Ogechukwu Caroline
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
![](https://cdn.adscientificindex.com/logos/1584.png)
Source rock and crude oil characterization
stratigraphy
groundwater and environmental studies.
* Total i10 Index Rankings
World Ranking
1,434,341
Country Ranking
20,878
Institution Ranking
131
Odunze-Akasiugwu Shirley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
1
0.333
![](https://cdn.adscientificindex.com/logos/1584.png)
Paleontology
Paleobiology
Sequence stratigraphy
Sedimentology
Stratigraphy
* Total i10 Index Rankings
World Ranking
1,679,566
Country Ranking
28,340
Institution Ranking
190
Chinedu Charles Mgbolu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
![](https://cdn.adscientificindex.com/logos/1584.png)
Applied geophysics
Hydrogeophysics
Environmetal geology
Exploration geophysics
Medical geology
* Total i10 Index Rankings
World Ranking
1,854,832
Country Ranking
33,268
Institution Ranking
234
Anene Chibundu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
0
0.000
* Total i10 Index Rankings
World Ranking
2,184,487
Country Ranking
46,819
Institution Ranking
405
Mbamalu Maryann
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0